First commit on new repo.

This commit is contained in:
Maschell 2018-09-22 19:52:52 +02:00
commit 471941be6e
168 changed files with 26056 additions and 0 deletions

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build/*
*.cbp
*.elf
*.cscope_file_list
*.layout
screenshots/*
release/*
*.mod
*.id*
*.nam
*.til
*.layout

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[submodule "src/mocha"]
path = src/mocha
url = https://github.com/Maschell/mocha
branch = sd_access

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sudo: required
services:
- docker
addons:
apt:
packages:
- p7zip-full
before_script:
- docker build . -t wups-loader-builder
script:
- docker run -it --rm -v ${PWD}:/project wups-loader-builder make
before_deploy:
- cd $TRAVIS_BUILD_DIR/
- mkdir -p "wiiu/apps/wiiupluginloader"
- commit="$(git rev-parse --short=7 HEAD)"
- chmod +x gitrev.sh
- versiontag="$(./gitrev.sh)"
- docker run -it --rm -v ${PWD}:/project wups-loader-builder make
- cp meta/* wiiu/apps/wiiupluginloader
- cp wiiupluginloader.elf wiiu/apps/wiiupluginloader
- zip -r WiiUPluginLoader_$versiontag.zip wiiu
- git config --global user.email "builds@travis-ci.com"
- git config --global user.name "Travis CI"
- export GIT_TAG=WiiUPluginLoader-$versiontag
- commitLog="$(git log -1 --pretty=%B)"
- commitMessage="$(echo -e "-\n" && echo "WiiUPluginLoader nightly build. Not a stable release. Expect bugs!\n Only use the plugins with the bundled loaded as they may not work on others." && echo -e "\nCommitlog:\n")"
- git tag $GIT_TAG -a -m "$commitMessage" -m "$commitLog"
- git push --quiet https://$GITHUBKEY@github.com/Maschell/WiiUPluginLoader $GIT_TAG > /dev/null 2>&1
deploy:
provider: releases
skip_cleanup: true
prerelease: true
api_key:
secure: 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
file: WiiUPluginLoader_$versiontag.zip
on:
repo: Maschell/WiiUPluginLoader
tags: false
all_branches: true

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FROM wups/core:latest
# clear portlibs. just in case.
RUN rm -rf $DEVKITPRO/portlibs
# Install devkitARM. Needed to build mocha.
RUN yes | sudo dkp-pacman -Syu devkitARM --needed
ENV DEVKITARM=${DEVKITPRO}/devkitARM
# Get dependencies
COPY --from=wiiulegacy/dynamic_libs:0.1 /artifacts $DEVKITPRO/portlibs
COPY --from=wiiulegacy/libiosuhax:0.3 /artifacts $DEVKITPRO/portlibs
COPY --from=wiiulegacy/libfat:1.1.3a /artifacts $DEVKITPRO/portlibs
COPY --from=wiiulegacy/libntfs:2013.1.13 /artifacts $DEVKITPRO/portlibs
COPY --from=wiiulegacy/libutils:0.1 /artifacts $DEVKITPRO/portlibs
COPY --from=wiiulegacy/libgui:0.1 /artifacts $DEVKITPRO/portlibs
RUN wget https://github.com/Maschell/WiiUPluginLoader/libs/portlibs.zip && \
7z x -y portlibs.zip -o${DEVKITPRO} && \
rm portlibs.zip
WORKDIR project

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under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
{one line to give the program's name and a brief idea of what it does.}
Copyright (C) {year} {name of author}
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
{project} Copyright (C) {year} {fullname}
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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DO_LOGGING := 1
#---------------------------------------------------------------------------------
# Clear the implicit built in rules
#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITPPC)),)
$(error "Please set DEVKITPPC in your environment. export DEVKITPPC=<path to>devkitPPC")
endif
ifeq ($(strip $(DEVKITPRO)),)
$(error "Please set DEVKITPRO in your environment. export DEVKITPRO=<path to>devkitPRO")
endif
export PATH := $(DEVKITPPC)/bin:$(PORTLIBS)/bin:$(PATH):$(DEVKITPRO)/tools/bin
export PORTLIBS := $(DEVKITPRO)/portlibs/ppc
PREFIX := powerpc-eabi-
export AS := $(PREFIX)as
export CC := $(PREFIX)gcc
export CXX := $(PREFIX)g++
export AR := $(PREFIX)ar
export OBJCOPY := $(PREFIX)objcopy
print-% : ; @echo $* = $($*)
#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing extra header files
#---------------------------------------------------------------------------------
TARGET := wiiupluginloader
BUILD := build
BUILD_DBG := $(TARGET)_dbg
SOURCES := src/common \
src/custom/gui \
src/libelf \
src/menu/content \
src/menu \
src/mymemory \
src/mykernel \
src/myutils \
src/patcher \
src/plugin \
src/resources \
src/settings \
src/
DATA := data/images \
data/sounds \
data/fonts \
INCLUDES := src/libelf \
src/
#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
CFLAGS := -std=gnu11 -mrvl -mcpu=750 -meabi -mhard-float -ffast-math \
-O0 -D__wiiu__ -Wall -Wextra -Wno-unused-parameter -Wno-strict-aliasing -D_GNU_SOURCE $(INCLUDE)
CXXFLAGS := -std=gnu++11 -mrvl -mcpu=750 -meabi -mhard-float -ffast-math \
-O0 -D__wiiu__ -Wall -Wextra -Wno-unused-parameter -Wno-strict-aliasing -D_GNU_SOURCE $(INCLUDE)
ifeq ($(DO_LOGGING), 1)
CFLAGS += -D__LOGGING__
CXXFLAGS += -D__LOGGING__
endif
ASFLAGS := -mregnames
LDFLAGS := -nostartfiles -Wl,-Map,$(notdir $@).map,-wrap,malloc,-wrap,free,-wrap,memalign,-wrap,calloc,-wrap,realloc,-wrap,malloc_usable_size,-wrap,_malloc_r,-wrap,_free_r,-wrap,_realloc_r,-wrap,_calloc_r,-wrap,_memalign_r,-wrap,_malloc_usable_size_r,-wrap,valloc,-wrap,_valloc_r,-wrap,_pvalloc_r,--gc-sections
#---------------------------------------------------------------------------------
Q := @
MAKEFLAGS += --no-print-directory
#---------------------------------------------------------------------------------
# any extra libraries we wish to link with the project
#---------------------------------------------------------------------------------
LIBS := -lgui -lm -lgcc -lfat -lntfs -liosuhax -lutils -ldynamiclibs -lfreetype -lgd -lpng -ljpeg -lz -lmad -lvorbisidec
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(CURDIR) \
$(DEVKITPPC)/lib \
$(DEVKITPRO)/wups
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export PROJECTDIR := $(CURDIR)
export OUTPUT := $(CURDIR)/$(TARGETDIR)/$(TARGET)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
$(foreach dir,$(DATA),$(CURDIR)/$(dir))
export DEPSDIR := $(CURDIR)/$(BUILD)
#---------------------------------------------------------------------------------
# automatically build a list of object files for our project
#---------------------------------------------------------------------------------
FILELIST := $(shell bash ./filelist.sh)
LANGUAGES := $(shell bash ./updatelang.sh)
CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
sFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.S)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
TTFFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.ttf)))
PNGFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.png)))
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
export LD := $(CC)
else
export LD := $(CXX)
endif
export OFILES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) \
$(sFILES:.s=.o) $(SFILES:.S=.o) \
$(PNGFILES:.png=.png.o) $(addsuffix .o,$(BINFILES))
#---------------------------------------------------------------------------------
# build a list of include paths
#---------------------------------------------------------------------------------
export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(PORTLIBS)/include -I$(CURDIR)/$(BUILD) \
-I$(PORTLIBS)/include/libutils \
-I$(PORTLIBS)/include/freetype2 -I$(PORTLIBS)/include/libgui
#---------------------------------------------------------------------------------
# build a list of library paths
#---------------------------------------------------------------------------------
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib) \
-L$(PORTLIBS)/lib
export OUTPUT := $(CURDIR)/$(TARGET)
.PHONY: $(BUILD) clean install
#---------------------------------------------------------------------------------
$(BUILD): $(CURDIR)/src/mocha/ios_kernel/ios_kernel.bin.h
@[ -d $@ ] || mkdir -p $@
@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
$(CURDIR)/src/mocha/ios_kernel/ios_kernel.bin.h: $(CURDIR)/src/mocha/ios_usb/ios_usb.bin.h $(CURDIR)/src/mocha/ios_mcp/ios_mcp.bin.h $(CURDIR)/src/mocha/ios_fs/ios_fs.bin.h $(CURDIR)/src/mocha/ios_bsp/ios_bsp.bin.h $(CURDIR)/src/mocha/ios_acp/ios_acp.bin.h
@$(MAKE) -j1 --no-print-directory -C $(CURDIR)/src/mocha/ios_kernel -f $(CURDIR)/src/mocha/ios_kernel/Makefile
$(CURDIR)/src/mocha/ios_usb/ios_usb.bin.h:
@$(MAKE) -j1 --no-print-directory -C $(CURDIR)/src/mocha/ios_usb -f $(CURDIR)/src/mocha/ios_usb/Makefile
$(CURDIR)/src/mocha/ios_fs/ios_fs.bin.h:
@$(MAKE) -j1 --no-print-directory -C $(CURDIR)/src/mocha/ios_fs -f $(CURDIR)/src/mocha/ios_fs/Makefile
$(CURDIR)/src/mocha/ios_bsp/ios_bsp.bin.h:
@$(MAKE) -j1 --no-print-directory -C $(CURDIR)/src/mocha/ios_bsp -f $(CURDIR)/src/mocha/ios_bsp/Makefile
$(CURDIR)/src/mocha/ios_mcp/ios_mcp.bin.h:
@$(MAKE) -j1 --no-print-directory -C $(CURDIR)/src/mocha/ios_mcp -f $(CURDIR)/src/mocha/ios_mcp/Makefile
$(CURDIR)/src/mocha/ios_acp/ios_acp.bin.h:
@$(MAKE) -j1 --no-print-directory -C $(CURDIR)/src/mocha/ios_acp -f $(CURDIR)/src/mocha/ios_acp/Makefile
#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) $(OUTPUT).elf $(OUTPUT).bin $(BUILD_DBG).elf
@$(MAKE) --no-print-directory -C $(CURDIR)/src/mocha/ios_kernel -f $(CURDIR)/src/mocha/ios_kernel/Makefile clean
@$(MAKE) --no-print-directory -C $(CURDIR)/src/mocha/ios_usb -f $(CURDIR)/src/mocha/ios_usb/Makefile clean
@$(MAKE) --no-print-directory -C $(CURDIR)/src/mocha/ios_fs -f $(CURDIR)/src/mocha/ios_fs/Makefile clean
@$(MAKE) --no-print-directory -C $(CURDIR)/src/mocha/ios_bsp -f $(CURDIR)/src/mocha/ios_bsp/Makefile clean
@$(MAKE) --no-print-directory -C $(CURDIR)/src/mocha/ios_mcp -f $(CURDIR)/src/mocha/ios_mcp/Makefile clean
@$(MAKE) --no-print-directory -C $(CURDIR)/src/mocha/ios_acp -f $(CURDIR)/src/mocha/ios_acp/Makefile clean
#---------------------------------------------------------------------------------
else
DEPENDS := $(OFILES:.o=.d)
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT).elf: $(OFILES)
#---------------------------------------------------------------------------------
# This rule links in binary data with the .jpg extension
#---------------------------------------------------------------------------------
%.elf: link.ld $(OFILES)
@echo "linking ... $(TARGET).elf"
$(Q)$(LD) -n -T $^ $(LDFLAGS) -o ../$(BUILD_DBG).elf $(LIBPATHS) $(LIBS)
$(Q)$(OBJCOPY) -S -R .comment -R .gnu.attributes ../$(BUILD_DBG).elf $@
#---------------------------------------------------------------------------------
%.a:
#---------------------------------------------------------------------------------
@echo $(notdir $@)
@rm -f $@
@$(AR) -rc $@ $^
#---------------------------------------------------------------------------------
%.o: %.cpp
@echo $(notdir $<)
@$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.d $(CXXFLAGS) -c $< -o $@ $(ERROR_FILTER)
#---------------------------------------------------------------------------------
%.o: %.c
@echo $(notdir $<)
@$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d $(CFLAGS) -c $< -o $@ $(ERROR_FILTER)
#---------------------------------------------------------------------------------
%.o: %.S
@echo $(notdir $<)
@$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@ $(ERROR_FILTER)
#---------------------------------------------------------------------------------
%.o: %.s
@echo $(notdir $<)
@$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@ $(ERROR_FILTER)
#---------------------------------------------------------------------------------
%.png.o : %.png
@echo $(notdir $<)
@bin2s -a 32 $< | $(AS) -o $(@)
#---------------------------------------------------------------------------------
%.jpg.o : %.jpg
@echo $(notdir $<)
@bin2s -a 32 $< | $(AS) -o $(@)
#---------------------------------------------------------------------------------
%.ttf.o : %.ttf
@echo $(notdir $<)
@bin2s -a 32 $< | $(AS) -o $(@)
#---------------------------------------------------------------------------------
%.bin.o : %.bin
@echo $(notdir $<)
@bin2s -a 32 $< | $(AS) -o $(@)
#---------------------------------------------------------------------------------
%.wav.o : %.wav
@echo $(notdir $<)
@bin2s -a 32 $< | $(AS) -o $(@)
#---------------------------------------------------------------------------------
%.mp3.o : %.mp3
@echo $(notdir $<)
@bin2s -a 32 $< | $(AS) -o $(@)
#---------------------------------------------------------------------------------
%.ogg.o : %.ogg
@echo $(notdir $<)
@bin2s -a 32 $< | $(AS) -o $(@)
#---------------------------------------------------------------------------------
%.tga.o : %.tga
@echo $(notdir $<)
@bin2s -a 32 $< | $(AS) -o $(@)
-include $(DEPENDS)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

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[Nightly builds](https://github.com/Maschell/WiiUPluginLoader/releases) | [Issue Tracker](https://github.com/Maschell/WiiUPluginLoader/issues) | [Discussion](https://gbatemp.net/threads/wii-u-plugin-system.496659/) | [Discord](https://discord.gg/bZ2rep2) | [Wiki](https://maschell.github.io/WiiUPluginSystem/dev_overview.html)
# Wii U Plugin Loader [![Build Status](https://api.travis-ci.org/Maschell/WiiUPluginLoader.svg?branch=master)](https://travis-ci.org/Maschell/WiiUPluginLoader)
This is the plugin loader for the [WiiUPluginSystem](https://github.com/Maschell/WiiUPluginSystem).
# Features
The project is still in it's very early days, but it already has basic functions to play with.
- The plugins will be loaded, even when you swap the running game.
- Support for up to 32 plugins at the same time.
- Each plugin can override up to 100 different existing system functions.
- Multiple plugins can override the same system functions.
- Plugins can register for certain hook (for example whenever an application was started)
- Plugins inherit the SD/USB access from the loader. All plugins have global SD and USB (FAT32 only) access.
- Plugins can be configured at run-time. Press L, DPAD down, and minus on the gamepad at the same time to open the configuration menu.
## Usage
Use the "Wii U Plugin Loader" to load plugins from the sd card. It is built to be loaded through the homebrew launcher, which can be either loaded with the browser exploit or haxchi.
Plugins needs to be placed into the following folder:
```
sd:/wiiu/plugins
```
You need to start this Application every time you reboot your console.
When you re-enter the homebrew launcher, the plugins will get unloaded.
This means it's not possible to combine this with other homebrews (yet).
## Create plugins
Information on how to create plugin can be found in the [wiki](https://maschell.github.io/WiiUPluginSystem/dev_plugin_creation_overview.html).
## Building
For building you need:
- [dynamic_libs](https://github.com/Maschell/dynamic_libs/tree/lib) for access to the functions.
- [libutils](https://github.com/Maschell/libutils) for common functions.
Install them (in this order) according to their README's. Don't forget the dependencies of the libs itself.
A detailed instruction can be found in the Wiki:
- [How to compile the loader](https://maschell.github.io/WiiUPluginSystem/dev_compile_loader.html)
### Building using the Dockerfile
It's possible to use a docker image for building. This way you don't need anything installed on your host system.
```
# Build docker image (only needed once
docker build . -t wups-loader-builder
# make
docker run -it --rm -v ${PWD}:/project wups-loader-builder make
# make clean
docker run -it --rm -v ${PWD}:/project wups-loader-builder make clean
```
# Load a plugin via network
While the loader is running, it's possible to load a single plugin via [wiiload](http://wiibrew.org/wiki/Wiiload).
When using this feature, this and all plugins in `sd:/wiiu/plugins/temp` will be loaded. The plugin will copied to the SDCard, this mean a SDCard is required.
A windows executable can be found in `tools/wiiload.exe`
More information about wiiload and alternatives can be found here: http://wiibrew.org/wiki/Wiiload
# Credits
Some files are based on brainslug by Chadderz:
https://github.com/Chadderz121/brainslug-wii
Much stuff also wouldn't be possible without dimok789. He made many great tools and homebrew this stuff in based on (Makefiles, Mocha, homebrew channel, udp logger, dynamic_libs etc.)
Also thanks to everyone who made actual exploits.

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#! /bin/bash
#
# Automatic resource file list generation
# Created by Dimok
outFile="./src/resources/filelist.cpp"
count_old=$(cat $outFile 2>/dev/null | tr -d '\n\n' | sed 's/[^0-9]*\([0-9]*\).*/\1/')
count=0
if [[ $OSTYPE == darwin* ]];
then
for i in $(gfind ./data/images/ ./data/sounds/ ./data/fonts/ -maxdepth 1 -type f \( ! -printf "%f\n" \) | sort -f)
do
files[count]=$i
count=$((count+1))
done
else
for i in $(find ./data/images/ ./data/sounds/ ./data/fonts/ -maxdepth 1 -type f \( ! -printf "%f\n" \) | sort -f)
do
files[count]=$i
count=$((count+1))
done
fi
if [ "$count_old" != "$count" ] || [ ! -f $outFile ]
then
echo "Generating filelist.c for $count files." >&2
cat <<EOF > $outFile
/****************************************************************************
* Resource files.
* This file is generated automatically.
* Includes $count files.
*
* NOTE:
* Any manual modification of this file will be overwriten by the generation.
*****************************************************************************/
#include <resources/filelist.h>
#include <stdint.h>
EOF
for i in ${files[@]}
do
filename=${i%.*}
extension=${i##*.}
echo 'extern const uint8_t '$filename'_'$extension'[];' >> $outFile
echo 'extern const uint32_t '$filename'_'$extension'_size;' >> $outFile
echo '' >> $outFile
done
echo 'static ResourceFile ResourceList[] =' >> $outFile
echo '{' >> $outFile
for i in ${files[@]}
do
filename=${i%.*}
extension=${i##*.}
echo -e '\t{"'$i'", '$filename'_'$extension', '$filename'_'$extension'_size, NULL, 0},' >> $outFile
done
echo -e '\t{NULL, NULL, 0, NULL, 0}' >> $outFile
echo '};' >> $outFile
echo '' >> $outFile
echo 'ResourceFile * getResourceList(){ return ResourceList; }' >> $outFile
echo '' >> $outFile
fi

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#! /bin/bash
#
rev_new=$(git rev-parse --short=7 HEAD)
version=$(cat ./loader/src/version.h 2>/dev/null | cut -d '"' -f2)
rev_date=`date -u +%Y%m%d%H%M%S`
cat <<EOF > ./loader/meta/meta.xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<app version="1">
<name>Wii U Plugin Loader</name>
<coder>Maschell</coder>
<url>https://github.com/Maschell/WiiUPluginSystem</url>
<version>$version-nightly-$rev_new</version>
<release_date>$rev_date</release_date>
<short_description>Plugin loader for the Wii U</short_description>
<long_description></long_description>
<category>tool</category>
</app>
EOF
cat <<EOF > ./loader/src/version.h
#define APP_VERSION "$version-nightly-$rev_new"
EOF
echo $version-nightly-$rev_new

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#! /bin/bash
#
7z x -y ./loader/libs/portlibs.zip -o${DEVKITPRO}
mkdir portlib_repos
cd portlib_repos
((git clone https://github.com/Maschell/dynamic_libs.git -b lib && (7z x -y ./dynamic_libs/libs/portlibs.zip -o${DEVKITPRO})) || (cd dynamic_libs && git pull))
(git clone https://github.com/dimok789/libiosuhax.git || (cd libiosuhax && git pull))
(git clone https://github.com/Maschell/libfat.git || (cd libfat && git pull))
(git clone https://github.com/Maschell/libntfs-wiiu.git || (cd libntfs-wiiu && git pull))
(git clone https://github.com/Maschell/libutils.git || (cd libutils && git pull))
((git clone https://github.com/Maschell/libgui.git && (7z x -y ./libgui/libs/portlibs.zip -o${DEVKITPRO})) || (cd libgui && git pull))
(git clone https://github.com/Maschell/fs_wrapper.git || (cd fs_wrapper && git pull))
(git clone https://github.com/Maschell/controller_patcher.git || (cd controller_patcher && git pull))
(cd dynamic_libs && ((make -j8 | grep -c "built ... ") && make install && echo "installed" ) || (echo "no need for make install" && make))
(cd libiosuhax && make -j8 && make install)
(cd libfat && make wiiu-release && make wiiu-install)
(cd libntfs-wiiu && make wiiu-install)
(cd libutils && ((make -j8 | grep -c "built ... ") && make install && echo "installed" ) || (echo "no need for make install" && make))
(cd libgui && ((make -j8 | grep -c "built ... ") && make install) || echo "no need for make install")
(cd fs_wrapper && ((make -j8 | grep -c "built ... ") && make install && echo "installed" ) || (echo "no need for make install" && make))
(cd controller_patcher && ((make -j8 | grep -c "built ... ") && make install && echo "installed" ) || (echo "no need for make install" && make))

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msgid "Press HOME to return."
msgstr ""
msgid "Language"
msgstr ""
msgid "Press B to return to the plugin overview."
msgstr ""
# English translations for Wii U Plugin System loader
# This file is distributed under the same license as the PACKAGE package.
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2017-05-08 17:13+0200\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
msgid "Press B to return to the plugin overview, HOME to return to the running application."
msgstr ""
#: src/menu/content/ContentHome.cpp:24
msgid "Welcome to the Wii U plugin loader"
msgstr ""
#: src/menu/content/ContentHome.cpp:33
msgid "Exit to HBL "
msgstr ""
#: src/menu/content/ContentHome.cpp:36
msgid "Apply Patches"
msgstr ""
#: src/myutils/ConfigUtils.cpp:113
msgid "Press HOME to return to the running application."
msgstr ""
#: src/myutils/ConfigUtils.cpp:114
msgid "Configurable running plugins:"
msgstr ""
#: src/myutils/ConfigUtils.cpp:118
msgid "No configurable running plugins found."
msgstr ""
#: src/myutils/ConfigUtils.cpp:243
msgid "B = plugin overview, HOME = back to running application."
msgstr ""

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<app version="1">
<name>Wii U Plugin Loader</name>
<coder>Maschell</coder>
<url>https://github.com/Maschell/WiiUPluginSystem</url>
<version>pre-alpha</version>
<release_date>201802103162900</release_date>
<short_description>Plugin loader for the Wii U</short_description>
<long_description>
</long_description>
<category>tool</category>
</app>

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/****************************************************************************
* Copyright (C) 2015 Dimok
* Modified by Maschell, 2018 for Wii U Plugin System loader
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include "Application.h"
#include "common/common.h"
#include <dynamic_libs/os_functions.h>
#include <gui/FreeTypeGX.h>
#include <gui/VPadController.h>
#include <gui/WPadController.h>
#include "resources/Resources.h"
#include <sounds/SoundHandler.hpp>
#include <utils/logger.h>
#include "settings/CSettings.h"
#include "myutils/TcpReceiver.h"
#include "mymemory/memory_mapping.h"
Application *Application::applicationInstance = NULL;
bool Application::exitApplication = false;
Application::Application()
: CThread(CThread::eAttributeAffCore1 | CThread::eAttributePinnedAff, 0, 0x20000)
, bgMusic(NULL)
, video(NULL)
, mainWindow(NULL)
, exitCode(EXIT_RELAUNCH_ON_LOAD) {
controller[0] = new VPadController(GuiTrigger::CHANNEL_1);
controller[1] = new WPadController(GuiTrigger::CHANNEL_2);
controller[2] = new WPadController(GuiTrigger::CHANNEL_3);
controller[3] = new WPadController(GuiTrigger::CHANNEL_4);
controller[4] = new WPadController(GuiTrigger::CHANNEL_5);
CSettings::instance()->Load();
//! create bgMusic
bgMusic = new GuiSound(Resources::GetFile("bgMusic.mp3"), Resources::GetFileSize("bgMusic.mp3"));
//! load language
loadLanguageFromConfig();
exitApplication = false;
}
Application::~Application() {
DEBUG_FUNCTION_LINE("Destroy music\n");
delete bgMusic;
DEBUG_FUNCTION_LINE("Destroy controller\n");
for(int32_t i = 0; i < 5; i++)
delete controller[i];
//We may have to handle Asyncdelete in the Destructors.
DEBUG_FUNCTION_LINE("Destroy async deleter\n");
do {
DEBUG_FUNCTION_LINE("Triggering AsyncDeleter\n");
AsyncDeleter::triggerDeleteProcess();
while(!AsyncDeleter::realListEmpty()) {
DEBUG_FUNCTION_LINE("Waiting...\n");
os_usleep(1000);
}
} while(!AsyncDeleter::deleteListEmpty());
AsyncDeleter::destroyInstance();
DEBUG_FUNCTION_LINE("Clear resources\n");
Resources::Clear();
DEBUG_FUNCTION_LINE("Stop sound handler\n");
SoundHandler::DestroyInstance();
}
int32_t Application::exec() {
//! start main GX2 thread
resumeThread();
//! now wait for thread to finish
shutdownThread();
return exitCode;
}
void Application::reloadUI() {
reloadUIflag = true;
}
void Application::fadeOut() {
GuiImage fadeOut(video->getTvWidth(), video->getTvHeight(), (GX2Color) {
0, 0, 0, 255
});
for(int32_t i = 0; i < 255; i += 10) {
if(i > 255)
i = 255;
fadeOut.setAlpha(i / 255.0f);
//! start rendering DRC
video->prepareDrcRendering();
mainWindow->drawDrc(video);
GX2SetDepthOnlyControl(GX2_DISABLE, GX2_DISABLE, GX2_COMPARE_ALWAYS);
fadeOut.draw(video);
GX2SetDepthOnlyControl(GX2_ENABLE, GX2_ENABLE, GX2_COMPARE_LEQUAL);
video->drcDrawDone();
//! start rendering TV
video->prepareTvRendering();
mainWindow->drawTv(video);
GX2SetDepthOnlyControl(GX2_DISABLE, GX2_DISABLE, GX2_COMPARE_ALWAYS);
fadeOut.draw(video);
GX2SetDepthOnlyControl(GX2_ENABLE, GX2_ENABLE, GX2_COMPARE_LEQUAL);
video->tvDrawDone();
//! as last point update the effects as it can drop elements
mainWindow->updateEffects();
video->waitForVSync();
}
//! one last cleared black screen
video->prepareDrcRendering();
video->drcDrawDone();
video->prepareTvRendering();
video->tvDrawDone();
video->waitForVSync();
video->tvEnable(false);
video->drcEnable(false);
}
void Application::executeThread(void) {
DEBUG_FUNCTION_LINE("Initialize video\n");
video = new CVideo(GX2_TV_SCAN_MODE_720P, GX2_DRC_SINGLE);
DEBUG_FUNCTION_LINE("Video size %i x %i\n", video->getTvWidth(), video->getTvHeight());
//! setup default Font
DEBUG_FUNCTION_LINE("Initialize main font system\n");
FreeTypeGX *fontSystem = new FreeTypeGX(Resources::GetFile("font.ttf"), Resources::GetFileSize("font.ttf"), true);
GuiText::setPresetFont(fontSystem);
reloadUIflag = true;
if(bgMusic != NULL) {
bgMusic->SetLoop(true);
bgMusic->SetVolume(50);
bgMusic->Stop(); //CHANG MEEEEEEEEEEEEEEEEEEE
}
while(reloadUIflag) {
reloadUIflag = false;
exitCode = EXIT_RELAUNCH_ON_LOAD;
DEBUG_FUNCTION_LINE("Initialize the language\n");
loadLanguageFromConfig();
DEBUG_FUNCTION_LINE("Initialize main window\n");
mainWindow = MainWindow::getInstance(video->getTvWidth(), video->getTvHeight());
exitApplication = false;
//! main GX2 loop (60 Hz cycle with max priority on core 1)
DEBUG_FUNCTION_LINE("Starting TcpReceiver\n");
TcpReceiver pluginReceiver(4299);
DEBUG_FUNCTION_LINE("Entering main loop\n");
while(!exitApplication && !reloadUIflag) {
//! Read out inputs
for(int32_t i = 0; i < 5; i++) {
if(controller[i]->update(video->getTvWidth(), video->getTvHeight()) == false)
continue;
if(controller[i]->data.buttons_d & VPAD_BUTTON_PLUS) {
exitCode = APPLICATION_CLOSE_APPLY;
if(linkPluginsCallback != NULL) {
bool result = linkPluginsCallback();
if(!result) {
// On linking errors return to the HBL.
#warning TODO: proper error handling when linking fails.
exitCode = APPLICATION_CLOSE_MIIMAKER;
}
}
exitApplication = true;
}
if(controller[i]->data.buttons_d & VPAD_BUTTON_MINUS) {
exitCode = APPLICATION_CLOSE_APPLY_MEMORY;
exitApplication = true;
}
if(controller[i]->data.buttons_d & VPAD_BUTTON_HOME) {
exitCode = APPLICATION_CLOSE_MIIMAKER;
exitApplication = true;
}
//! update controller states
mainWindow->update(controller[i]);
}
mainWindow->process();
//! start rendering DRC
video->prepareDrcRendering();
mainWindow->drawDrc(video);
video->drcDrawDone();
//! start rendering TV
video->prepareTvRendering();
mainWindow->drawTv(video);
video->tvDrawDone();
//! enable screen after first frame render
if(video->getFrameCount() == 0) {
video->tvEnable(true);
video->drcEnable(true);
}
//! as last point update the effects as it can drop elements
mainWindow->updateEffects();
video->waitForVSync();
//! transfer elements to real delete list here after all processes are finished
//! the elements are transfered to another list to delete the elements in a separate thread
//! and avoid blocking the GUI thread
AsyncDeleter::triggerDeleteProcess();
}
DEBUG_FUNCTION_LINE("Fading out\n");
fadeOut();
DEBUG_FUNCTION_LINE("Destroying the MainWindow\n");
MainWindow::destroyInstance();
}
DEBUG_FUNCTION_LINE("Delete fontSystem\n");
delete fontSystem;
DEBUG_FUNCTION_LINE("Delete video\n");
delete video;
}
void Application::loadLanguageFromConfig() {
if(!CSettings::getValueAsString(CSettings::AppLanguage).empty()) {
std::string languagePath = std::string(DEFAULT_LANG_PATH) + "/" + CSettings::getValueAsString(CSettings::AppLanguage) + std::string(LANGUAGE_FILE_EXT);
gettextLoadLanguage(languagePath.c_str());
}
}

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/****************************************************************************
* Copyright (C) 2015 Dimok
* Modified by Maschell, 2018 for Wii U Plugin System loader
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#ifndef _APPLICATION_H
#define _APPLICATION_H
#include "menu/MainWindow.h"
#include <functional>
#include <video/CVideo.h>
#include <system/CThread.h>
#include <language/gettext.h>
#define APPLICATION_CLOSE_APPLY 1
#define APPLICATION_CLOSE_APPLY_MEMORY 3
#define APPLICATION_CLOSE_MIIMAKER 2
class Application : public CThread {
public:
static Application * instance() {
if(!applicationInstance)
applicationInstance = new Application();
return applicationInstance;
}
static void destroyInstance() {
if(applicationInstance) {
delete applicationInstance;
applicationInstance = NULL;
}
}
CVideo *getVideo(void) const {
return video;
}
MainWindow *getMainWindow(void) const {
return mainWindow;
}
GuiSound *getBgMusic(void) const {
return bgMusic;
}
int32_t exec(void);
void fadeOut(void);
void reloadUI(void);
void quit(int32_t code) {
exitCode = code;
exitApplication = true;
}
void setLinkPluginsCallback(std::function<bool(void)> fun) {
linkPluginsCallback = fun;
DEBUG_FUNCTION_LINE("Set callback to %08X \n",linkPluginsCallback);
}
private:
Application();
virtual ~Application();
static Application *applicationInstance;
static bool exitApplication;
void executeThread(void);
void loadLanguageFromConfig();
bool reloadUIflag = false;
GuiSound *bgMusic;
CVideo *video;
MainWindow *mainWindow;
GuiController *controller[5];
int32_t exitCode;
std::function<bool(void)> linkPluginsCallback = NULL;
};
#endif //_APPLICATION_H

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#ifndef COMMON_H
#define COMMON_H
#ifdef __cplusplus
extern "C" {
#endif
#include <dynamic_libs/os_defs.h>
#define CAFE_OS_SD_PATH "/vol/external01"
#define WIIU_PATH "/wiiu"
#define SD_PATH "sd:"
#define USB_PATH "usb:"
#define DEFAULT_NAME_PACKAGE "DEFAULT"
#define NAME_PREFIX_SD "sd: "
#define NAME_PREFIX_USB "usb:"
#define ELF_DATA_ADDR (*(volatile uint32_t*)(MEM_BASE + 0x1300 + 0x00))
#define ELF_DATA_SIZE (*(volatile uint32_t*)(MEM_BASE + 0x1300 + 0x04))
#define MAIN_ENTRY_ADDR (*(volatile uint32_t*)(MEM_BASE + 0x1400 + 0x00))
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#endif
#define EXIT_HBL_EXIT 0xFFFFFFFE
#define EXIT_RELAUNCH_ON_LOAD 0xFFFFFFFD
#define DEFAULT_WUPSLOADER_PATH SD_PATH WIIU_PATH "/apps/wiiupluginsystem"
#define DEFAULT_LANG_PATH DEFAULT_WUPSLOADER_PATH "/languages"
#define LANGUAGE_FILE_EXT ".lang"
#define PLUGIN_CONFIG_FILE_EXT ".cfg"
#define PLUGIN_FILE_EXT ".mod"
#define WUPS_PLUGIN_PATH SD_PATH WIIU_PATH "/plugins"
#define WUPS_TEMP_PLUGIN_PATH SD_PATH WIIU_PATH "/plugins/temp"
#define WUPS_TEMP_PLUGIN_FILE WUPS_TEMP_PLUGIN_PATH "/temp" PLUGIN_FILE_EXT
#define WUPS_SDUSB_MOUNTED_NONE 0
#define WUPS_SDUSB_MOUNTED_FAKE (1<<0)
#define WUPS_SDUSB_MOUNTED_OS_SD (1<<1)
#define WUPS_SDUSB_LIBIOSU_LOADED (1<<2)
#define WUPS_SD_MOUNTED_LIBFAT (1<<3)
#define WUPS_USB_MOUNTED_LIBFAT (1<<4)
#define WUPS_USB_MOUNTED_LIBNTFS (1<<5)
#define WUPS_SD_MOUNTED (WUPS_SDUSB_MOUNTED_OS_SD | WUPS_SD_MOUNTED_LIBFAT)
#define WUPS_USB_MOUNTED (WUPS_USB_MOUNTED_LIBFAT)
#ifdef __cplusplus
}
#endif
#endif /* COMMON_H */

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#include "retain_vars.h"
#include "myutils/overlay_helper.h"
replacement_data_t gbl_replacement_data __attribute__((section(".data")));
dyn_linking_relocation_data_t gbl_dyn_linking_data __attribute__((section(".data")));
uint8_t gAppStatus __attribute__((section(".data"))) = 0;
uint64_t gGameTitleID __attribute__((section(".data"))) = 0;
volatile uint8_t gSDInitDone __attribute__((section(".data"))) = 0;
void * ntfs_mounts __attribute__((section(".data"))) = NULL;
int32_t ntfs_mount_count __attribute__((section(".data"))) = 0;
struct buffer_store drc_store __attribute__((section(".data")));
struct buffer_store tv_store __attribute__((section(".data")));
char gbl_common_data[0x20000] __attribute__((section(".data")));
char * gbl_common_data_ptr __attribute__((section(".data"))) = gbl_common_data;

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#ifndef RETAINS_VARS_H_
#define RETAINS_VARS_H_
#include "patcher/function_patcher.h"
#include "plugin/dynamic_linking_defines.h"
extern replacement_data_t gbl_replacement_data;
extern dyn_linking_relocation_data_t gbl_dyn_linking_data;
extern uint8_t gAppStatus;
extern uint64_t gGameTitleID;
extern volatile uint8_t gSDInitDone;
extern void * ntfs_mounts;
extern int32_t ntfs_mount_count;
extern struct buffer_store drc_store;
extern struct buffer_store tv_store;
#endif // RETAINS_VARS_H_

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/****************************************************************************
* Copyright (C) 2017 Maschell
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include "DefaultGuiSelectBox.h"
/**
* Constructor for the DefaultGuiSelectBox class.
*/
DefaultGuiSelectBox::DefaultGuiSelectBox(std::string caption, GuiFrame *parent)
: GuiSelectBox(NULL,caption)
,topBackgroundImg_imgdata(Resources::GetImageData("gameSettingsButton.png"))
,topBackgroundImg_img(topBackgroundImg_imgdata)
,topHighlightedImg_imgdata(Resources::GetImageData("gameSettingsButtonSelected.png"))
,topHighlightedImg_img(topHighlightedImg_imgdata)
,valueImageData(Resources::GetImageData("gameSettingsButtonEx.png"))
,valueSelectedImageData(Resources::GetImageData("gameSettingsButtonExSelected.png"))
,valueHighlightedImageData(Resources::GetImageData("gameSettingsButtonExHighlighted.png"))
,buttonClickSound(Resources::GetSound("settings_click_2.mp3"))
{
setSize(topBackgroundImg_img.getWidth(),topBackgroundImg_img.getHeight());
this->setImageTopBackground(&topBackgroundImg_img);
this->setImageTopHighlighted(&topHighlightedImg_img);
this->setImageValueBackground(valueImageData);
this->setImageValueHighlighted(valueHighlightedImageData);
this->setImageValueSelected(valueSelectedImageData);
this->setSoundClick(buttonClickSound);
}
/**
* Destructor for the DefaultGuiSelectBox class.
*/
DefaultGuiSelectBox::~DefaultGuiSelectBox()
{
Resources::RemoveImageData(topBackgroundImg_imgdata);
Resources::RemoveImageData(topHighlightedImg_imgdata);
Resources::RemoveImageData(valueImageData);
Resources::RemoveImageData(valueSelectedImageData);
Resources::RemoveImageData(valueHighlightedImageData);
Resources::RemoveSound(buttonClickSound);
}

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/****************************************************************************
* Copyright (C) 2017 Maschell
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#ifndef DEFAULT_GUI_SELECTBOX_H_
#define DEFAULT_GUI_SELECTBOX_H_
#include <gui/GuiSelectBox.h>
//!A simple select box with default values.
class DefaultGuiSelectBox : public GuiSelectBox{
public:
//!Constructor
//!\param checked Checked
DefaultGuiSelectBox(std::string caption, GuiFrame *parent = NULL);
//!Destructor
virtual ~DefaultGuiSelectBox();
protected:
GuiImageData * topBackgroundImg_imgdata;
GuiImage topBackgroundImg_img;
GuiImageData * topHighlightedImg_imgdata;
GuiImage topHighlightedImg_img;
GuiImageData * valueImageData;
GuiImageData * valueSelectedImageData;
GuiImageData * valueHighlightedImageData;
GuiSound * buttonClickSound;
};
#endif

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/****************************************************************************
* Copyright (C) 2017 Maschell
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include "DefaultGuiSwitch.h"
/**
* Constructor for the DefaultGuiSwitch class.
*/
DefaultGuiSwitch::DefaultGuiSwitch(bool checked)
: GuiSwitch(NULL,checked)
,switchbase_imgdata(Resources::GetImageData("switchIconBase.png"))
,switchbase_img(switchbase_imgdata)
,switchbase_highlighted_imgdata(Resources::GetImageData("switchIconBaseHighlighted.png"))
,switchbase_highlighted_img(switchbase_highlighted_imgdata)
,switchOn_imgdata(Resources::GetImageData("switchIconOn.png"))
,switchOn_img(switchOn_imgdata)
,switchOff_imgdata(Resources::GetImageData("switchIconOff.png"))
,switchOff_img(switchOff_imgdata)
{
setSize(switchbase_img.getWidth(),switchbase_img.getHeight());
this->setImageBackground(&switchbase_img);
this->setImageHighlighted(&switchbase_highlighted_img);
this->setImageOn(&switchOn_img);
this->setImageOff(&switchOff_img);
}
/**
* Destructor for the DefaultGuiSwitch class.
*/
DefaultGuiSwitch::~DefaultGuiSwitch()
{
Resources::RemoveImageData(switchbase_imgdata);
Resources::RemoveImageData(switchbase_highlighted_imgdata);
Resources::RemoveImageData(switchOn_imgdata);
Resources::RemoveImageData(switchOff_imgdata);
}

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/****************************************************************************
* Copyright (C) 2017 Maschell
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#ifndef DEFAULT_GUI_SWTICH_H_
#define DEFAULT_GUI_SWTICH_H_
#include <gui/GuiSwitch.h>
//!A simple switch
class DefaultGuiSwitch : public GuiSwitch{
public:
//!Constructor
//!\param checked Checked
DefaultGuiSwitch(bool checked);
//!Destructor
virtual ~DefaultGuiSwitch();
protected:
GuiImageData * switchbase_imgdata = NULL;
GuiImage switchbase_img;
GuiImageData * switchbase_highlighted_imgdata = NULL;
GuiImage switchbase_highlighted_img;
GuiImageData * switchOn_imgdata = NULL;
GuiImage switchOn_img;
GuiImageData * switchOff_imgdata = NULL;
GuiImage switchOff_img;
};
#endif

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#include <string.h>
#include "main.h"
int32_t __entry_menu(int32_t argc, char **argv) {
//! *******************************************************************
//! * Jump to our application *
//! *******************************************************************
return Menu_Main(argc,argv);
}

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/*-
* Copyright (c) 2009 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: _elftc.h 2495 2012-04-23 05:31:56Z jkoshy $
*/
/**
** Miscellanous definitions needed by multiple components.
**/
#ifndef _ELFTC_H
#define _ELFTC_H
#ifndef NULL
#define NULL ((void *) 0)
#endif
#ifndef offsetof
#define offsetof(T, M) ((int) &((T*) 0) -> M)
#endif
/* --QUEUE-MACROS-- [[ */
/*
* Supply macros missing from <sys/queue.h>
*/
/*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef STAILQ_CONCAT
#define STAILQ_CONCAT(head1, head2) do { \
if (!STAILQ_EMPTY((head2))) { \
*(head1)->stqh_last = (head2)->stqh_first; \
(head1)->stqh_last = (head2)->stqh_last; \
STAILQ_INIT((head2)); \
} \
} while (/*CONSTCOND*/0)
#endif
#ifndef STAILQ_EMPTY
#define STAILQ_EMPTY(head) ((head)->stqh_first == NULL)
#endif
#ifndef STAILQ_ENTRY
#define STAILQ_ENTRY(type) \
struct { \
struct type *stqe_next; /* next element */ \
}
#endif
#ifndef STAILQ_FIRST
#define STAILQ_FIRST(head) ((head)->stqh_first)
#endif
#ifndef STAILQ_HEAD
#define STAILQ_HEAD(name, type) \
struct name { \
struct type *stqh_first; /* first element */ \
struct type **stqh_last; /* addr of last next element */ \
}
#endif
#ifndef STAILQ_HEAD_INITIALIZER
#define STAILQ_HEAD_INITIALIZER(head) \
{ NULL, &(head).stqh_first }
#endif
#ifndef STAILQ_FOREACH
#define STAILQ_FOREACH(var, head, field) \
for ((var) = ((head)->stqh_first); \
(var); \
(var) = ((var)->field.stqe_next))
#endif
#ifndef STAILQ_FOREACH_SAFE
#define STAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = STAILQ_FIRST((head)); \
(var) && ((tvar) = STAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#endif
#ifndef STAILQ_INIT
#define STAILQ_INIT(head) do { \
(head)->stqh_first = NULL; \
(head)->stqh_last = &(head)->stqh_first; \
} while (/*CONSTCOND*/0)
#endif
#ifndef STAILQ_INSERT_HEAD
#define STAILQ_INSERT_HEAD(head, elm, field) do { \
if (((elm)->field.stqe_next = (head)->stqh_first) == NULL) \
(head)->stqh_last = &(elm)->field.stqe_next; \
(head)->stqh_first = (elm); \
} while (/*CONSTCOND*/0)
#endif
#ifndef STAILQ_INSERT_TAIL
#define STAILQ_INSERT_TAIL(head, elm, field) do { \
(elm)->field.stqe_next = NULL; \
*(head)->stqh_last = (elm); \
(head)->stqh_last = &(elm)->field.stqe_next; \
} while (/*CONSTCOND*/0)
#endif
#ifndef STAILQ_INSERT_AFTER
#define STAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
if (((elm)->field.stqe_next = (listelm)->field.stqe_next) == NULL)\
(head)->stqh_last = &(elm)->field.stqe_next; \
(listelm)->field.stqe_next = (elm); \
} while (/*CONSTCOND*/0)
#endif
#ifndef STAILQ_LAST
#define STAILQ_LAST(head, type, field) \
(STAILQ_EMPTY((head)) ? \
NULL : ((struct type *)(void *) \
((char *)((head)->stqh_last) - offsetof(struct type, field))))
#endif
#ifndef STAILQ_NEXT
#define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next)
#endif
#ifndef STAILQ_REMOVE
#define STAILQ_REMOVE(head, elm, type, field) do { \
if ((head)->stqh_first == (elm)) { \
STAILQ_REMOVE_HEAD((head), field); \
} else { \
struct type *curelm = (head)->stqh_first; \
while (curelm->field.stqe_next != (elm)) \
curelm = curelm->field.stqe_next; \
if ((curelm->field.stqe_next = \
curelm->field.stqe_next->field.stqe_next) == NULL) \
(head)->stqh_last = &(curelm)->field.stqe_next; \
} \
} while (/*CONSTCOND*/0)
#endif
#ifndef STAILQ_REMOVE_HEAD
#define STAILQ_REMOVE_HEAD(head, field) do { \
if (((head)->stqh_first = (head)->stqh_first->field.stqe_next) == \
NULL) \
(head)->stqh_last = &(head)->stqh_first; \
} while (/*CONSTCOND*/0)
#endif
#ifndef TAILQ_FOREACH_SAFE
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = TAILQ_FIRST((head)); \
(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#endif
/* ]] --QUEUE-MACROS-- */
/*
* VCS Ids.
*/
#ifndef ELFTC_VCSID
#if defined(GEKKO)
#define ELFTC_VCSID(ID) /**/
#endif
#if defined(__wiiu__)
#define ELFTC_VCSID(ID) /**/
#endif
#if defined(__DragonFly__)
#define ELFTC_VCSID(ID) __RCSID(ID)
#endif
#if defined(__FreeBSD__)
#define ELFTC_VCSID(ID) __FBSDID(ID)
#endif
#if defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
#if defined(__GNUC__)
#define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"")
#else
#define ELFTC_VCSID(ID) /**/
#endif
#endif
#if defined(__minix)
#if defined(__GNUC__)
#define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"")
#else
#define ELFTC_VCSID(ID) /**/
#endif /* __GNU__ */
#endif
#if defined(__NetBSD__)
#define ELFTC_VCSID(ID) __RCSID(ID)
#endif
#if defined(__OpenBSD__)
#if defined(__GNUC__)
#define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"")
#else
#define ELFTC_VCSID(ID) /**/
#endif /* __GNUC__ */
#endif
#endif /* ELFTC_VCSID */
/*
* Provide an equivalent for getprogname(3).
*/
#ifndef ELFTC_GETPROGNAME
#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__minix) || \
defined(__NetBSD__)
#include <stdlib.h>
#define ELFTC_GETPROGNAME() getprogname()
#endif /* __DragonFly__ || __FreeBSD__ || __minix || __NetBSD__ */
#if defined(__GLIBC__)
/*
* GLIBC based systems have a global 'char *' pointer referencing
* the executable's name.
*/
extern const char *program_invocation_short_name;
#define ELFTC_GETPROGNAME() program_invocation_short_name
#endif /* __GLIBC__ */
#if defined(__OpenBSD__)
extern const char *__progname;
#define ELFTC_GETPROGNAME() __progname
#endif /* __OpenBSD__ */
#endif /* ELFTC_GETPROGNAME */
/**
** Per-OS configuration.
**/
#if defined(GEKKO)
#include <sys/param.h>
#define ELFTC_BYTE_ORDER BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN BIG_ENDIAN
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
#define roundup2 roundup
#define ELFTC_HAVE_MMAP 0
#define ELFTC_HAVE_STRMODE 0/
#define ELFTC_NEED_BYTEORDER_EXTENSIONS 1
#endif
#if defined(__wiiu__)
#include <sys/param.h>
#define ELFTC_BYTE_ORDER BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN BIG_ENDIAN
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
#define roundup2 roundup
#define ELFTC_HAVE_MMAP 0
#define ELFTC_HAVE_STRMODE 0/
#define ELFTC_NEED_BYTEORDER_EXTENSIONS 1
#endif
#if defined(__DragonFly__)
#include <osreldate.h>
#include <sys/endian.h>
#define ELFTC_BYTE_ORDER _BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN
#define ELFTC_HAVE_MMAP 1
#endif
#if defined(__GLIBC__)
#include <endian.h>
#define ELFTC_BYTE_ORDER __BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN __LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN __BIG_ENDIAN
#define ELFTC_HAVE_MMAP 1
/*
* Debian GNU/Linux and Debian GNU/kFreeBSD do not have strmode(3).
*/
#define ELFTC_HAVE_STRMODE 0
/* Whether we need to supply {be,le}32dec. */
#define ELFTC_NEED_BYTEORDER_EXTENSIONS 1
#define roundup2 roundup
#endif /* __GLIBC__ */
#if defined(__FreeBSD__)
#include <osreldate.h>
#include <sys/endian.h>
#define ELFTC_BYTE_ORDER _BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN
#define ELFTC_HAVE_MMAP 1
#define ELFTC_HAVE_STRMODE 1
#if __FreeBSD_version <= 900000
#define ELFTC_BROKEN_YY_NO_INPUT 1
#endif
#endif /* __FreeBSD__ */
#if defined(__minix)
#define ELFTC_HAVE_MMAP 0
#endif /* __minix */
#if defined(__NetBSD__)
#include <sys/param.h>
#include <sys/endian.h>
#define ELFTC_BYTE_ORDER _BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN
#define ELFTC_HAVE_MMAP 1
#define ELFTC_HAVE_STRMODE 1
#if __NetBSD_Version__ <= 599002100
/* from src/doc/CHANGES: flex(1): Import flex-2.5.35 [christos 20091025] */
/* and 5.99.21 was from Wed Oct 21 21:28:36 2009 UTC */
# define ELFTC_BROKEN_YY_NO_INPUT 1
#endif
#endif /* __NetBSD __ */
#if defined(__OpenBSD__)
#include <sys/param.h>
#include <sys/endian.h>
#define ELFTC_BYTE_ORDER _BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN
#define ELFTC_HAVE_MMAP 1
#define ELFTC_HAVE_STRMODE 1
#define ELFTC_NEED_BYTEORDER_EXTENSIONS 1
#define roundup2 roundup
#endif /* __OpenBSD__ */
#endif /* _ELFTC_H */

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/*-
* Copyright (c) 2006,2008-2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: _libelf.h 2365 2011-12-29 04:36:44Z jkoshy $
*/
#ifndef __LIBELF_H_
#define __LIBELF_H_
#include <sys/queue.h>
#include "_libelf_config.h"
#include "_elftc.h"
/*
* Library-private data structures.
*/
#define LIBELF_MSG_SIZE 256
struct _libelf_globals {
int libelf_arch;
unsigned int libelf_byteorder;
int libelf_class;
int libelf_error;
int libelf_fillchar;
unsigned int libelf_version;
char libelf_msg[LIBELF_MSG_SIZE];
};
extern struct _libelf_globals _libelf;
#define LIBELF_PRIVATE(N) (_libelf.libelf_##N)
#define LIBELF_ELF_ERROR_MASK 0xFF
#define LIBELF_OS_ERROR_SHIFT 8
#define LIBELF_ERROR(E, O) (((E) & LIBELF_ELF_ERROR_MASK) | \
((O) << LIBELF_OS_ERROR_SHIFT))
#define LIBELF_SET_ERROR(E, O) do { \
LIBELF_PRIVATE(error) = LIBELF_ERROR(ELF_E_##E, (O)); \
} while (0)
#define LIBELF_ADJUST_AR_SIZE(S) (((S) + 1U) & ~1U)
/*
* Flags for library internal use. These use the upper 16 bits of the
* `e_flags' field.
*/
#define LIBELF_F_API_MASK 0x00FFFF /* Flags defined by the API. */
#define LIBELF_F_AR_HEADER 0x010000 /* translated header available */
#define LIBELF_F_AR_VARIANT_SVR4 0x020000 /* BSD style ar(1) archive */
#define LIBELF_F_DATA_MALLOCED 0x040000 /* whether data was malloc'ed */
#define LIBELF_F_RAWFILE_MALLOC 0x080000 /* whether e_rawfile was malloc'ed */
#define LIBELF_F_RAWFILE_MMAP 0x100000 /* whether e_rawfile was mmap'ed */
#define LIBELF_F_SHDRS_LOADED 0x200000 /* whether all shdrs were read in */
#define LIBELF_F_SPECIAL_FILE 0x400000 /* non-regular file */
struct _Elf {
int e_activations; /* activation count */
unsigned int e_byteorder; /* ELFDATA* */
int e_class; /* ELFCLASS* */
Elf_Cmd e_cmd; /* ELF_C_* used at creation time */
int e_fd; /* associated file descriptor */
unsigned int e_flags; /* ELF_F_* & LIBELF_F_* flags */
Elf_Kind e_kind; /* ELF_K_* */
Elf *e_parent; /* non-NULL for archive members */
char *e_rawfile; /* uninterpreted bytes */
size_t e_rawsize; /* size of uninterpreted bytes */
unsigned int e_version; /* file version */
/*
* Header information for archive members. See the
* LIBELF_F_AR_HEADER flag.
*/
union {
Elf_Arhdr *e_arhdr; /* translated header */
char *e_rawhdr; /* untranslated header */
} e_hdr;
union {
struct { /* ar(1) archives */
off_t e_next; /* set by elf_rand()/elf_next() */
int e_nchildren;
char *e_rawstrtab; /* file name strings */
size_t e_rawstrtabsz;
char *e_rawsymtab; /* symbol table */
size_t e_rawsymtabsz;
Elf_Arsym *e_symtab;
size_t e_symtabsz;
} e_ar;
struct { /* regular ELF files */
union {
Elf32_Ehdr *e_ehdr32;
Elf64_Ehdr *e_ehdr64;
} e_ehdr;
union {
Elf32_Phdr *e_phdr32;
Elf64_Phdr *e_phdr64;
} e_phdr;
STAILQ_HEAD(, _Elf_Scn) e_scn; /* section list */
size_t e_nphdr; /* number of Phdr entries */
size_t e_nscn; /* number of sections */
size_t e_strndx; /* string table section index */
} e_elf;
} e_u;
};
/*
* The internal descriptor wrapping the "Elf_Data" type.
*/
struct _Libelf_Data {
Elf_Data d_data; /* The exported descriptor. */
Elf_Scn *d_scn; /* The containing section */
unsigned int d_flags;
STAILQ_ENTRY(_Libelf_Data) d_next;
};
struct _Elf_Scn {
union {
Elf32_Shdr s_shdr32;
Elf64_Shdr s_shdr64;
} s_shdr;
STAILQ_HEAD(, _Libelf_Data) s_data; /* translated data */
STAILQ_HEAD(, _Libelf_Data) s_rawdata; /* raw data */
STAILQ_ENTRY(_Elf_Scn) s_next;
struct _Elf *s_elf; /* parent ELF descriptor */
unsigned int s_flags; /* flags for the section as a whole */
size_t s_ndx; /* index# for this section */
uint64_t s_offset; /* managed by elf_update() */
uint64_t s_rawoff; /* original offset in the file */
uint64_t s_size; /* managed by elf_update() */
};
enum {
ELF_TOFILE,
ELF_TOMEMORY
};
#define LIBELF_COPY_U32(DST,SRC,NAME) do { \
if ((SRC)->NAME > UINT_MAX) { \
LIBELF_SET_ERROR(RANGE, 0); \
return (0); \
} \
(DST)->NAME = (SRC)->NAME; \
} while (0)
#define LIBELF_COPY_S32(DST,SRC,NAME) do { \
if ((SRC)->NAME > INT_MAX || \
(SRC)->NAME < INT_MIN) { \
LIBELF_SET_ERROR(RANGE, 0); \
return (0); \
} \
(DST)->NAME = (SRC)->NAME; \
} while (0)
/*
* Function Prototypes.
*/
struct _Libelf_Data *_libelf_allocate_data(Elf_Scn *_s);
Elf *_libelf_allocate_elf(void);
Elf_Scn *_libelf_allocate_scn(Elf *_e, size_t _ndx);
Elf_Arhdr *_libelf_ar_gethdr(Elf *_e);
Elf *_libelf_ar_open(Elf *_e, int _reporterror);
Elf *_libelf_ar_open_member(int _fd, Elf_Cmd _c, Elf *_ar);
int _libelf_ar_get_member(char *_s, size_t _sz, int _base, size_t *_ret);
Elf_Arsym *_libelf_ar_process_bsd_symtab(Elf *_ar, size_t *_dst);
Elf_Arsym *_libelf_ar_process_svr4_symtab(Elf *_ar, size_t *_dst);
unsigned long _libelf_checksum(Elf *_e, int _elfclass);
void *_libelf_ehdr(Elf *_e, int _elfclass, int _allocate);
int _libelf_falign(Elf_Type _t, int _elfclass);
size_t _libelf_fsize(Elf_Type _t, int _elfclass, unsigned int _version,
size_t count);
int (*_libelf_get_translator(Elf_Type _t, int _direction, int _elfclass))
(char *_dst, size_t dsz, char *_src, size_t _cnt, int _byteswap);
void *_libelf_getphdr(Elf *_e, int _elfclass);
void *_libelf_getshdr(Elf_Scn *_scn, int _elfclass);
void _libelf_init_elf(Elf *_e, Elf_Kind _kind);
int _libelf_load_section_headers(Elf *e, void *ehdr);
int _libelf_malign(Elf_Type _t, int _elfclass);
Elf *_libelf_memory(char *_image, size_t _sz, int _reporterror);
size_t _libelf_msize(Elf_Type _t, int _elfclass, unsigned int _version);
void *_libelf_newphdr(Elf *_e, int _elfclass, size_t _count);
Elf *_libelf_open_object(int _fd, Elf_Cmd _c, int _reporterror);
struct _Libelf_Data *_libelf_release_data(struct _Libelf_Data *_d);
Elf *_libelf_release_elf(Elf *_e);
Elf_Scn *_libelf_release_scn(Elf_Scn *_s);
int _libelf_setphnum(Elf *_e, void *_eh, int _elfclass, size_t _phnum);
int _libelf_setshnum(Elf *_e, void *_eh, int _elfclass, size_t _shnum);
int _libelf_setshstrndx(Elf *_e, void *_eh, int _elfclass,
size_t _shstrndx);
Elf_Data *_libelf_xlate(Elf_Data *_d, const Elf_Data *_s,
unsigned int _encoding, int _elfclass, int _direction);
int _libelf_xlate_shtype(uint32_t _sht);
#endif /* __LIBELF_H_ */

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/*-
* Copyright (c) 2010 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: _libelf_ar.h 2032 2011-10-23 09:07:00Z jkoshy $
*/
#ifndef __LIBELF_AR_H_
#define __LIBELF_AR_H_
/*
* Prototypes and declarations needed by libelf's ar(1) archive
* handling code.
*/
#include <ar.h>
#define LIBELF_AR_BSD_EXTENDED_NAME_PREFIX "#1/"
#define LIBELF_AR_BSD_SYMTAB_NAME "__.SYMDEF"
#define LIBELF_AR_BSD_EXTENDED_NAME_PREFIX_SIZE \
(sizeof(LIBELF_AR_BSD_EXTENDED_NAME_PREFIX) - 1)
#define IS_EXTENDED_BSD_NAME(NAME) \
(strncmp((NAME), LIBELF_AR_BSD_EXTENDED_NAME_PREFIX, \
LIBELF_AR_BSD_EXTENDED_NAME_PREFIX_SIZE) == 0)
char *_libelf_ar_get_string(const char *_buf, size_t _sz, int _rawname,
int _svr4names);
char *_libelf_ar_get_raw_name(const struct ar_hdr *_arh);
char *_libelf_ar_get_translated_name(const struct ar_hdr *_arh, Elf *_ar);
int _libelf_ar_get_number(const char *_buf, size_t _sz, int _base,
size_t *_ret);
#endif /* __LIBELF_AR_H_ */

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/*-
* Copyright (c) 2008-2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: _libelf_config.h 2287 2011-12-04 06:45:47Z jkoshy $
*/
#ifdef GEKKO
#define LIBELF_ARCH EM_PPC
#define LIBELF_BYTEORDER ELFDATA2MSB
#define LIBELF_CLASS ELFCLASS32
#endif /* GEKKO */
#ifdef __wiiu__
#define LIBELF_ARCH EM_PPC
#define LIBELF_BYTEORDER ELFDATA2MSB
#define LIBELF_CLASS ELFCLASS32
#endif /* __wiiu__ */
#ifdef __DragonFly__
#if defined(__amd64__)
#define LIBELF_ARCH EM_X86_64
#define LIBELF_BYTEORDER ELFDATA2LSB
#define LIBELF_CLASS ELFCLASS64
#elif defined(__i386__)
#define LIBELF_ARCH EM_386
#define LIBELF_BYTEORDER ELFDATA2LSB
#define LIBELF_CLASS ELFCLASS32
#endif
#endif /* __DragonFly__ */
#ifdef __FreeBSD__
/*
* Define LIBELF_{ARCH,BYTEORDER,CLASS} based on the machine architecture.
* See also: <machine/elf.h>.
*/
#if defined(__amd64__)
#define LIBELF_ARCH EM_X86_64
#define LIBELF_BYTEORDER ELFDATA2LSB
#define LIBELF_CLASS ELFCLASS64
#elif defined(__arm__)
#define LIBELF_ARCH EM_ARM
#if defined(__ARMEB__) /* Big-endian ARM. */
#define LIBELF_BYTEORDER ELFDATA2MSB
#else
#define LIBELF_BYTEORDER ELFDATA2LSB
#endif
#define LIBELF_CLASS ELFCLASS32
#elif defined(__i386__)
#define LIBELF_ARCH EM_386
#define LIBELF_BYTEORDER ELFDATA2LSB
#define LIBELF_CLASS ELFCLASS32
#elif defined(__ia64__)
#define LIBELF_ARCH EM_IA_64
#define LIBELF_BYTEORDER ELFDATA2LSB
#define LIBELF_CLASS ELFCLASS64
#elif defined(__mips__)
#define LIBELF_ARCH EM_MIPS
#if defined(__MIPSEB__)
#define LIBELF_BYTEORDER ELFDATA2MSB
#else
#define LIBELF_BYTEORDER ELFDATA2LSB
#endif
#define LIBELF_CLASS ELFCLASS32
#elif defined(__powerpc__)
#define LIBELF_ARCH EM_PPC
#define LIBELF_BYTEORDER ELFDATA2MSB
#define LIBELF_CLASS ELFCLASS32
#elif defined(__sparc__)
#define LIBELF_ARCH EM_SPARCV9
#define LIBELF_BYTEORDER ELFDATA2MSB
#define LIBELF_CLASS ELFCLASS64
#else
#error Unknown FreeBSD architecture.
#endif
#endif /* __FreeBSD__ */
/*
* Definitions for Minix3.
*/
#ifdef __minix
#define LIBELF_ARCH EM_386
#define LIBELF_BYTEORDER ELFDATA2LSB
#define LIBELF_CLASS ELFCLASS32
#endif /* __minix */
#ifdef __NetBSD__
#include <machine/elf_machdep.h>
#if !defined(ARCH_ELFSIZE)
#error ARCH_ELFSIZE is not defined.
#endif
#if ARCH_ELFSIZE == 32
#define LIBELF_ARCH ELF32_MACHDEP_ID
#define LIBELF_BYTEORDER ELF32_MACHDEP_ENDIANNESS
#define LIBELF_CLASS ELFCLASS32
#define Elf_Note Elf32_Nhdr
#else
#define LIBELF_ARCH ELF64_MACHDEP_ID
#define LIBELF_BYTEORDER ELF64_MACHDEP_ENDIANNESS
#define LIBELF_CLASS ELFCLASS64
#define Elf_Note Elf64_Nhdr
#endif
#endif /* __NetBSD__ */
#if defined(__OpenBSD__)
#include <machine/exec.h>
#define LIBELF_ARCH ELF_TARG_MACH
#define LIBELF_BYTEORDER ELF_TARG_DATA
#define LIBELF_CLASS ELF_TARG_CLASS
#endif
/*
* GNU & Linux compatibility.
*
* `__linux__' is defined in an environment runs the Linux kernel and glibc.
* `__GNU__' is defined in an environment runs a GNU kernel (Hurd) and glibc.
* `__GLIBC__' is defined for an environment that runs glibc over a non-GNU
* kernel such as GNU/kFreeBSD.
*/
#if defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
#if defined(__linux__)
#include "native-elf-format.h"
#define LIBELF_CLASS ELFTC_CLASS
#define LIBELF_ARCH ELFTC_ARCH
#define LIBELF_BYTEORDER ELFTC_BYTEORDER
#endif /* defined(__linux__) */
#if LIBELF_CLASS == ELFCLASS32
#define Elf_Note Elf32_Nhdr
#elif LIBELF_CLASS == ELFCLASS64
#define Elf_Note Elf64_Nhdr
#else
#error LIBELF_CLASS needs to be one of ELFCLASS32 or ELFCLASS64
#endif
#endif /* defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) */

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/*-
* Copyright (c) 2006,2008,2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf.c 2225 2011-11-26 18:55:54Z jkoshy $");
struct _libelf_globals _libelf = {
.libelf_arch = LIBELF_ARCH,
.libelf_byteorder = LIBELF_BYTEORDER,
.libelf_class = LIBELF_CLASS,
.libelf_error = 0,
.libelf_fillchar = 0,
.libelf_version = EV_NONE
};

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/*-
* Copyright (c) 2006,2008-2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_begin.c 2364 2011-12-28 17:55:25Z jkoshy $");
Elf *
elf_begin(int fd, Elf_Cmd c, Elf *a)
{
Elf *e;
e = NULL;
if (LIBELF_PRIVATE(version) == EV_NONE) {
LIBELF_SET_ERROR(SEQUENCE, 0);
return (NULL);
}
switch (c) {
case ELF_C_NULL:
return (NULL);
case ELF_C_WRITE:
/*
* The ELF_C_WRITE command is required to ignore the
* descriptor passed in.
*/
a = NULL;
break;
case ELF_C_RDWR:
if (a != NULL) { /* not allowed for ar(1) archives. */
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
/*FALLTHROUGH*/
case ELF_C_READ:
/*
* Descriptor `a' could be for a regular ELF file, or
* for an ar(1) archive. If descriptor `a' was opened
* using a valid file descriptor, we need to check if
* the passed in `fd' value matches the original one.
*/
if (a &&
((a->e_fd != -1 && a->e_fd != fd) || c != a->e_cmd)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
break;
default:
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (a == NULL)
e = _libelf_open_object(fd, c, 1);
else if (a->e_kind == ELF_K_AR)
e = _libelf_ar_open_member(a->e_fd, c, a);
else
(e = a)->e_activations++;
return (e);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_cntl.c 2225 2011-11-26 18:55:54Z jkoshy $");
int
elf_cntl(Elf *e, Elf_Cmd c)
{
if (e == NULL ||
(c != ELF_C_FDDONE && c != ELF_C_FDREAD)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (-1);
}
if (e->e_parent) {
LIBELF_SET_ERROR(ARCHIVE, 0);
return (-1);
}
if (c == ELF_C_FDREAD) {
if (e->e_cmd == ELF_C_WRITE) {
LIBELF_SET_ERROR(MODE, 0);
return (-1);
}
else
return (0);
}
e->e_fd = -1;
return 0;
}

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/*-
* Copyright (c) 2006,2008,2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <assert.h>
#include <errno.h>
#include <libelf.h>
#include <stdlib.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_data.c 2272 2011-12-03 17:07:31Z jkoshy $");
Elf_Data *
elf_getdata(Elf_Scn *s, Elf_Data *ed)
{
Elf *e;
unsigned int sh_type;
int elfclass, elftype;
size_t fsz, msz, count;
struct _Libelf_Data *d;
uint64_t sh_align, sh_offset, sh_size;
int (*xlate)(char *_d, size_t _dsz, char *_s, size_t _c, int _swap);
d = (struct _Libelf_Data *) ed;
if (s == NULL || (e = s->s_elf) == NULL ||
(d != NULL && s != d->d_scn)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
assert(e->e_kind == ELF_K_ELF);
if (d == NULL && (d = STAILQ_FIRST(&s->s_data)) != NULL)
return (&d->d_data);
if (d != NULL)
return (&STAILQ_NEXT(d, d_next)->d_data);
if (e->e_rawfile == NULL) {
/*
* In the ELF_C_WRITE case, there is no source that
* can provide data for the section.
*/
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
elfclass = e->e_class;
assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);
if (elfclass == ELFCLASS32) {
sh_type = s->s_shdr.s_shdr32.sh_type;
sh_offset = (uint64_t) s->s_shdr.s_shdr32.sh_offset;
sh_size = (uint64_t) s->s_shdr.s_shdr32.sh_size;
sh_align = (uint64_t) s->s_shdr.s_shdr32.sh_addralign;
} else {
sh_type = s->s_shdr.s_shdr64.sh_type;
sh_offset = s->s_shdr.s_shdr64.sh_offset;
sh_size = s->s_shdr.s_shdr64.sh_size;
sh_align = s->s_shdr.s_shdr64.sh_addralign;
}
if (sh_type == SHT_NULL) {
LIBELF_SET_ERROR(SECTION, 0);
return (NULL);
}
if ((elftype = _libelf_xlate_shtype(sh_type)) < ELF_T_FIRST ||
elftype > ELF_T_LAST || (sh_type != SHT_NOBITS &&
sh_offset + sh_size > (uint64_t) e->e_rawsize)) {
LIBELF_SET_ERROR(SECTION, 0);
return (NULL);
}
if ((fsz = (elfclass == ELFCLASS32 ? elf32_fsize : elf64_fsize)
(elftype, (size_t) 1, e->e_version)) == 0) {
LIBELF_SET_ERROR(UNIMPL, 0);
return (NULL);
}
if (sh_size % fsz) {
LIBELF_SET_ERROR(SECTION, 0);
return (NULL);
}
count = sh_size / fsz;
msz = _libelf_msize(elftype, elfclass, e->e_version);
assert(msz > 0);
if ((d = _libelf_allocate_data(s)) == NULL)
return (NULL);
d->d_data.d_buf = NULL;
d->d_data.d_off = 0;
d->d_data.d_align = sh_align;
d->d_data.d_size = msz * count;
d->d_data.d_type = elftype;
d->d_data.d_version = e->e_version;
if (sh_type == SHT_NOBITS || sh_size == 0) {
STAILQ_INSERT_TAIL(&s->s_data, d, d_next);
return (&d->d_data);
}
if ((d->d_data.d_buf = malloc(msz*count)) == NULL) {
(void) _libelf_release_data(d);
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
d->d_flags |= LIBELF_F_DATA_MALLOCED;
xlate = _libelf_get_translator(elftype, ELF_TOMEMORY, elfclass);
if (!(*xlate)(d->d_data.d_buf, d->d_data.d_size,
e->e_rawfile + sh_offset, count,
e->e_byteorder != LIBELF_PRIVATE(byteorder))) {
_libelf_release_data(d);
LIBELF_SET_ERROR(DATA, 0);
return (NULL);
}
STAILQ_INSERT_TAIL(&s->s_data, d, d_next);
return (&d->d_data);
}
Elf_Data *
elf_newdata(Elf_Scn *s)
{
Elf *e;
struct _Libelf_Data *d;
if (s == NULL || (e = s->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
assert(e->e_kind == ELF_K_ELF);
/*
* elf_newdata() has to append a data descriptor, so
* bring in existing section data if not already present.
*/
if (e->e_rawfile && s->s_size > 0 && STAILQ_EMPTY(&s->s_data))
if (elf_getdata(s, NULL) == NULL)
return (NULL);
if ((d = _libelf_allocate_data(s)) == NULL)
return (NULL);
STAILQ_INSERT_TAIL(&s->s_data, d, d_next);
d->d_data.d_align = 1;
d->d_data.d_buf = NULL;
d->d_data.d_off = (uint64_t) ~0;
d->d_data.d_size = 0;
d->d_data.d_type = ELF_T_BYTE;
d->d_data.d_version = LIBELF_PRIVATE(version);
(void) elf_flagscn(s, ELF_C_SET, ELF_F_DIRTY);
return (&d->d_data);
}
/*
* Retrieve a data descriptor for raw (untranslated) data for section
* `s'.
*/
Elf_Data *
elf_rawdata(Elf_Scn *s, Elf_Data *ed)
{
Elf *e;
int elf_class;
uint32_t sh_type;
struct _Libelf_Data *d;
uint64_t sh_align, sh_offset, sh_size;
if (s == NULL || (e = s->s_elf) == NULL || e->e_rawfile == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
assert(e->e_kind == ELF_K_ELF);
d = (struct _Libelf_Data *) ed;
if (d == NULL && (d = STAILQ_FIRST(&s->s_rawdata)) != NULL)
return (&d->d_data);
if (d != NULL)
return (&STAILQ_NEXT(d, d_next)->d_data);
elf_class = e->e_class;
assert(elf_class == ELFCLASS32 || elf_class == ELFCLASS64);
if (elf_class == ELFCLASS32) {
sh_type = s->s_shdr.s_shdr32.sh_type;
sh_offset = (uint64_t) s->s_shdr.s_shdr32.sh_offset;
sh_size = (uint64_t) s->s_shdr.s_shdr32.sh_size;
sh_align = (uint64_t) s->s_shdr.s_shdr32.sh_addralign;
} else {
sh_type = s->s_shdr.s_shdr64.sh_type;
sh_offset = s->s_shdr.s_shdr64.sh_offset;
sh_size = s->s_shdr.s_shdr64.sh_size;
sh_align = s->s_shdr.s_shdr64.sh_addralign;
}
if (sh_type == SHT_NULL)
return (NULL);
if ((d = _libelf_allocate_data(s)) == NULL)
return (NULL);
d->d_data.d_buf = (sh_type == SHT_NOBITS || sh_size == 0) ? NULL :
e->e_rawfile + sh_offset;
d->d_data.d_off = 0;
d->d_data.d_align = sh_align;
d->d_data.d_size = sh_size;
d->d_data.d_type = ELF_T_BYTE;
d->d_data.d_version = e->e_version;
STAILQ_INSERT_TAIL(&s->s_rawdata, d, d_next);
return (&d->d_data);
}

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/*-
* Copyright (c) 2006,2008-2009,2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <libelf.h>
#include <stdlib.h>
#include "_libelf.h"
#if ELFTC_HAVE_MMAP
#include <sys/mman.h>
#endif
ELFTC_VCSID("$Id: elf_end.c 2240 2011-11-28 06:36:48Z jkoshy $");
int
elf_end(Elf *e)
{
Elf *sv;
Elf_Scn *scn, *tscn;
if (e == NULL || e->e_activations == 0)
return (0);
if (--e->e_activations > 0)
return (e->e_activations);
assert(e->e_activations == 0);
while (e && e->e_activations == 0) {
switch (e->e_kind) {
case ELF_K_AR:
/*
* If we still have open child descriptors, we
* need to defer reclaiming resources till all
* the child descriptors for the archive are
* closed.
*/
if (e->e_u.e_ar.e_nchildren > 0)
return (0);
break;
case ELF_K_ELF:
/*
* Reclaim all section descriptors.
*/
STAILQ_FOREACH_SAFE(scn, &e->e_u.e_elf.e_scn, s_next,
tscn)
scn = _libelf_release_scn(scn);
break;
case ELF_K_NUM:
assert(0);
default:
break;
}
if (e->e_rawfile) {
if (e->e_flags & LIBELF_F_RAWFILE_MALLOC)
free(e->e_rawfile);
#if ELFTC_HAVE_MMAP
else if (e->e_flags & LIBELF_F_RAWFILE_MMAP)
(void) munmap(e->e_rawfile, e->e_rawsize);
#endif
}
sv = e;
if ((e = e->e_parent) != NULL)
e->e_u.e_ar.e_nchildren--;
sv = _libelf_release_elf(sv);
}
return (0);
}

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/*-
* Copyright (c) 2006,2008,2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include <stdio.h>
#include <string.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_errmsg.c 2225 2011-11-26 18:55:54Z jkoshy $");
/*
* Retrieve a human readable translation for an error message.
*/
const char *_libelf_errors[] = {
#define DEFINE_ERROR(N,S) [ELF_E_##N] = S
DEFINE_ERROR(NONE, "No Error"),
DEFINE_ERROR(ARCHIVE, "Malformed ar(1) archive"),
DEFINE_ERROR(ARGUMENT, "Invalid argument"),
DEFINE_ERROR(CLASS, "ELF class mismatch"),
DEFINE_ERROR(DATA, "Invalid data buffer descriptor"),
DEFINE_ERROR(HEADER, "Missing or malformed ELF header"),
DEFINE_ERROR(IO, "I/O error"),
DEFINE_ERROR(LAYOUT, "Layout constraint violation"),
DEFINE_ERROR(MODE, "Incorrect ELF descriptor mode"),
DEFINE_ERROR(RANGE, "Value out of range of target"),
DEFINE_ERROR(RESOURCE, "Resource exhaustion"),
DEFINE_ERROR(SECTION, "Invalid section descriptor"),
DEFINE_ERROR(SEQUENCE, "API calls out of sequence"),
DEFINE_ERROR(UNIMPL, "Unimplemented feature"),
DEFINE_ERROR(VERSION, "Unknown ELF API version"),
DEFINE_ERROR(NUM, "Unknown error")
#undef DEFINE_ERROR
};
const char *
elf_errmsg(int error)
{
int oserr;
if (error == ELF_E_NONE &&
(error = LIBELF_PRIVATE(error)) == 0)
return NULL;
else if (error == -1)
error = LIBELF_PRIVATE(error);
oserr = error >> LIBELF_OS_ERROR_SHIFT;
error &= LIBELF_ELF_ERROR_MASK;
if (error < ELF_E_NONE || error >= ELF_E_NUM)
return _libelf_errors[ELF_E_NUM];
if (oserr) {
(void) snprintf(LIBELF_PRIVATE(msg),
sizeof(LIBELF_PRIVATE(msg)), "%s: %s",
_libelf_errors[error], strerror(oserr));
return (const char *)&LIBELF_PRIVATE(msg);
}
return _libelf_errors[error];
}

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/*-
* Copyright (c) 2006,2008,2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_errno.c 2225 2011-11-26 18:55:54Z jkoshy $");
int
elf_errno(void)
{
int old;
old = LIBELF_PRIVATE(error);
LIBELF_PRIVATE(error) = 0;
return (old & LIBELF_ELF_ERROR_MASK);
}

39
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_fill.c 2225 2011-11-26 18:55:54Z jkoshy $");
void
elf_fill(int fill)
{
LIBELF_PRIVATE(fillchar) = fill;
}

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/*-
* Copyright (c) 2006,2008-2009,2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_flag.c 2272 2011-12-03 17:07:31Z jkoshy $");
unsigned int
elf_flagarhdr(Elf_Arhdr *a, Elf_Cmd c, unsigned int flags)
{
unsigned int r;
if (a == NULL)
return (0);
if ((c != ELF_C_SET && c != ELF_C_CLR) ||
(flags & ~ELF_F_DIRTY) != 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (c == ELF_C_SET)
r = a->ar_flags |= flags;
else
r = a->ar_flags &= ~flags;
return (r & LIBELF_F_API_MASK);
}
unsigned int
elf_flagdata(Elf_Data *d, Elf_Cmd c, unsigned int flags)
{
unsigned int r;
struct _Libelf_Data *ld;
if (d == NULL)
return (0);
if ((c != ELF_C_SET && c != ELF_C_CLR) ||
(flags & ~ELF_F_DIRTY) != 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ld = (struct _Libelf_Data *) d;
if (c == ELF_C_SET)
r = ld->d_flags |= flags;
else
r = ld->d_flags &= ~flags;
return (r & LIBELF_F_API_MASK);
}
unsigned int
elf_flagehdr(Elf *e, Elf_Cmd c, unsigned int flags)
{
int ec;
void *ehdr;
if (e == NULL)
return (0);
if ((c != ELF_C_SET && c != ELF_C_CLR) ||
(e->e_kind != ELF_K_ELF) || (flags & ~ELF_F_DIRTY) != 0 ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32)
ehdr = e->e_u.e_elf.e_ehdr.e_ehdr32;
else
ehdr = e->e_u.e_elf.e_ehdr.e_ehdr64;
if (ehdr == NULL) {
LIBELF_SET_ERROR(SEQUENCE, 0);
return (0);
}
return (elf_flagelf(e, c, flags));
}
unsigned int
elf_flagelf(Elf *e, Elf_Cmd c, unsigned int flags)
{
int r;
if (e == NULL)
return (0);
if ((c != ELF_C_SET && c != ELF_C_CLR) ||
(e->e_kind != ELF_K_ELF) ||
(flags & ~(ELF_F_ARCHIVE | ELF_F_ARCHIVE_SYSV |
ELF_F_DIRTY | ELF_F_LAYOUT)) != 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if ((flags & ELF_F_ARCHIVE_SYSV) && (flags & ELF_F_ARCHIVE) == 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if ((flags & ELF_F_ARCHIVE) && e->e_cmd != ELF_C_WRITE) {
LIBELF_SET_ERROR(MODE, 0);
return (0);
}
if (c == ELF_C_SET)
r = e->e_flags |= flags;
else
r = e->e_flags &= ~flags;
return (r & LIBELF_F_API_MASK);
}
unsigned int
elf_flagphdr(Elf *e, Elf_Cmd c, unsigned int flags)
{
int ec;
void *phdr;
if (e == NULL)
return (0);
if ((c != ELF_C_SET && c != ELF_C_CLR) ||
(e->e_kind != ELF_K_ELF) || (flags & ~ELF_F_DIRTY) != 0 ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32)
phdr = e->e_u.e_elf.e_phdr.e_phdr32;
else
phdr = e->e_u.e_elf.e_phdr.e_phdr64;
if (phdr == NULL) {
LIBELF_SET_ERROR(SEQUENCE, 0);
return (0);
}
return (elf_flagelf(e, c, flags));
}
unsigned int
elf_flagscn(Elf_Scn *s, Elf_Cmd c, unsigned int flags)
{
int r;
if (s == NULL)
return (0);
if ((c != ELF_C_SET && c != ELF_C_CLR) ||
(flags & ~ELF_F_DIRTY) != 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (c == ELF_C_SET)
r = s->s_flags |= flags;
else
r = s->s_flags &= ~flags;
return (r & LIBELF_F_API_MASK);
}
unsigned int
elf_flagshdr(Elf_Scn *s, Elf_Cmd c, unsigned int flags)
{
return (elf_flagscn(s, c, flags));
}

47
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/*-
* Copyright (c) 2006,2008,2010 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_getarhdr.c 2225 2011-11-26 18:55:54Z jkoshy $");
Elf_Arhdr *
elf_getarhdr(Elf *e)
{
if (e == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (e->e_flags & LIBELF_F_AR_HEADER)
return (e->e_hdr.e_arhdr);
return (_libelf_ar_gethdr(e));
}

58
src/libelf/elf_getarsym.c Normal file
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@ -0,0 +1,58 @@
/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_getarsym.c 2225 2011-11-26 18:55:54Z jkoshy $");
Elf_Arsym *
elf_getarsym(Elf *ar, size_t *ptr)
{
size_t n;
Elf_Arsym *symtab;
n = 0;
symtab = NULL;
if (ar == NULL || ar->e_kind != ELF_K_AR)
LIBELF_SET_ERROR(ARGUMENT, 0);
else if ((symtab = ar->e_u.e_ar.e_symtab) != NULL)
n = ar->e_u.e_ar.e_symtabsz;
else if (ar->e_u.e_ar.e_rawsymtab)
symtab = (ar->e_flags & LIBELF_F_AR_VARIANT_SVR4) ?
_libelf_ar_process_svr4_symtab(ar, &n) :
_libelf_ar_process_bsd_symtab(ar, &n);
else
LIBELF_SET_ERROR(ARCHIVE, 0);
if (ptr)
*ptr = n;
return (symtab);
}

48
src/libelf/elf_getbase.c Normal file
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@ -0,0 +1,48 @@
/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_getbase.c 2225 2011-11-26 18:55:54Z jkoshy $");
off_t
elf_getbase(Elf *e)
{
if (e == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return ((off_t) -1);
}
if (e->e_parent == NULL)
return ((off_t) 0);
return ((off_t) ((uintptr_t) e->e_rawfile -
(uintptr_t) e->e_parent->e_rawfile));
}

68
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <ar.h>
#include <assert.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_getident.c 2225 2011-11-26 18:55:54Z jkoshy $");
char *
elf_getident(Elf *e, size_t *sz)
{
if (e == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
goto error;
}
if (e->e_cmd == ELF_C_WRITE && e->e_rawfile == NULL) {
LIBELF_SET_ERROR(SEQUENCE, 0);
goto error;
}
assert(e->e_kind != ELF_K_AR || e->e_cmd == ELF_C_READ);
if (sz) {
if (e->e_kind == ELF_K_AR)
*sz = SARMAG;
else if (e->e_kind == ELF_K_ELF)
*sz = EI_NIDENT;
else
*sz = e->e_rawsize;
}
return ((char *) e->e_rawfile);
error:
if (sz)
*sz = 0;
return (NULL);
}

56
src/libelf/elf_hash.c Normal file
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_hash.c 2225 2011-11-26 18:55:54Z jkoshy $");
/*
* This elf_hash function is defined by the System V ABI.
*/
unsigned long
elf_hash(const char *name)
{
unsigned long h, t;
const unsigned char *s;
s = (const unsigned char *) name;
h = t = 0;
for (; *s != '\0'; h = h & ~t) {
h = (h << 4) + *s++;
t = h & 0xF0000000UL;
if (t)
h ^= t >> 24;
}
return (h);
}

44
src/libelf/elf_kind.c Normal file
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@ -0,0 +1,44 @@
/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_kind.c 2225 2011-11-26 18:55:54Z jkoshy $");
Elf_Kind
elf_kind(Elf *e)
{
if (e == NULL)
return (ELF_K_NONE);
if (e->e_kind == ELF_K_AR ||
e->e_kind == ELF_K_ELF)
return (e->e_kind);
return (ELF_K_NONE);
}

47
src/libelf/elf_memory.c Normal file
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@ -0,0 +1,47 @@
/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_memory.c 2368 2011-12-29 06:34:28Z jkoshy $");
Elf *
elf_memory(char *image, size_t sz)
{
if (LIBELF_PRIVATE(version) == EV_NONE) {
LIBELF_SET_ERROR(SEQUENCE, 0);
return (NULL);
}
if (image == NULL || sz == 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
return (_libelf_memory(image, sz, 1));
}

62
src/libelf/elf_next.c Normal file
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <ar.h>
#include <assert.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_next.c 2225 2011-11-26 18:55:54Z jkoshy $");
Elf_Cmd
elf_next(Elf *e)
{
off_t next;
Elf *parent;
if (e == NULL)
return (ELF_C_NULL);
if ((parent = e->e_parent) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (ELF_C_NULL);
}
assert (parent->e_kind == ELF_K_AR);
assert (parent->e_cmd == ELF_C_READ);
assert(e->e_rawfile > parent->e_rawfile);
next = e->e_rawfile - parent->e_rawfile + e->e_rawsize;
next = (next + 1) & ~1; /* round up to an even boundary */
parent->e_u.e_ar.e_next = (next >= (off_t) parent->e_rawsize) ?
(off_t) 0 : next;
return (ELF_C_READ);
}

67
src/libelf/elf_open.c Normal file
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/*-
* Copyright (c) 2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id$");
/*
* Extension API: open a file for reading, ignoring parse errors.
*/
Elf *
elf_open(int fd)
{
if (LIBELF_PRIVATE(version) == EV_NONE) {
LIBELF_SET_ERROR(SEQUENCE, 0);
return (NULL);
}
return (_libelf_open_object(fd, ELF_C_READ, 0));
}
/*
* Extension API: create an ELF descriptor for an in-memory object,
* ignoring parse errors.
*/
Elf *
elf_openmemory(char *image, size_t sz)
{
if (LIBELF_PRIVATE(version) == EV_NONE) {
LIBELF_SET_ERROR(SEQUENCE, 0);
return (NULL);
}
if (image == NULL || sz == 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
return (_libelf_memory(image, sz, 0));
}

67
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <ar.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_phnum.c 2225 2011-11-26 18:55:54Z jkoshy $");
static int
_libelf_getphdrnum(Elf *e, size_t *phnum)
{
void *eh;
int ec;
if (e == NULL || e->e_kind != ELF_K_ELF ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (-1);
}
if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
return (-1);
*phnum = e->e_u.e_elf.e_nphdr;
return (0);
}
int
elf_getphdrnum(Elf *e, size_t *phnum)
{
return (_libelf_getphdrnum(e, phnum));
}
/* Deprecated API */
int
elf_getphnum(Elf *e, size_t *phnum)
{
return (_libelf_getphdrnum(e, phnum) >= 0);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <ar.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_rand.c 2225 2011-11-26 18:55:54Z jkoshy $");
off_t
elf_rand(Elf *ar, off_t offset)
{
struct ar_hdr *arh;
if (ar == NULL || ar->e_kind != ELF_K_AR ||
(offset & 1) || offset < SARMAG ||
offset + sizeof(struct ar_hdr) >= ar->e_rawsize) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return 0;
}
arh = (struct ar_hdr *) (ar->e_rawfile + offset);
/* a too simple sanity check */
if (arh->ar_fmag[0] != '`' || arh->ar_fmag[1] != '\n') {
LIBELF_SET_ERROR(ARCHIVE, 0);
return 0;
}
ar->e_u.e_ar.e_next = offset;
return (offset);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_rawfile.c 2225 2011-11-26 18:55:54Z jkoshy $");
char *
elf_rawfile(Elf *e, size_t *sz)
{
char *ptr;
size_t size;
size = e ? e->e_rawsize : 0;
ptr = NULL;
if (e == NULL)
LIBELF_SET_ERROR(ARGUMENT, 0);
else if ((ptr = e->e_rawfile) == NULL && e->e_cmd == ELF_C_WRITE)
LIBELF_SET_ERROR(SEQUENCE, 0);
if (sz)
*sz = size;
return (ptr);
}

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/*-
* Copyright (c) 2006,2008-2010 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <sys/queue.h>
#include <assert.h>
#include <errno.h>
#include <gelf.h>
#include <libelf.h>
#include <stddef.h>
#include <stdlib.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_scn.c 2225 2011-11-26 18:55:54Z jkoshy $");
/*
* Load an ELF section table and create a list of Elf_Scn structures.
*/
int
_libelf_load_section_headers(Elf *e, void *ehdr)
{
int ec, swapbytes;
size_t fsz, i, shnum;
uint64_t shoff;
char *src;
Elf32_Ehdr *eh32;
Elf64_Ehdr *eh64;
Elf_Scn *scn;
int (*xlator)(char *_d, size_t _dsz, char *_s, size_t _c, int _swap);
assert(e != NULL);
assert(ehdr != NULL);
assert((e->e_flags & LIBELF_F_SHDRS_LOADED) == 0);
#define CHECK_EHDR(E,EH) do { \
if (fsz != (EH)->e_shentsize || \
shoff + fsz * shnum > e->e_rawsize) { \
LIBELF_SET_ERROR(HEADER, 0); \
return (0); \
} \
} while (0)
ec = e->e_class;
fsz = _libelf_fsize(ELF_T_SHDR, ec, e->e_version, (size_t) 1);
assert(fsz > 0);
shnum = e->e_u.e_elf.e_nscn;
if (ec == ELFCLASS32) {
eh32 = (Elf32_Ehdr *) ehdr;
shoff = (uint64_t) eh32->e_shoff;
CHECK_EHDR(e, eh32);
} else {
eh64 = (Elf64_Ehdr *) ehdr;
shoff = eh64->e_shoff;
CHECK_EHDR(e, eh64);
}
xlator = _libelf_get_translator(ELF_T_SHDR, ELF_TOMEMORY, ec);
swapbytes = e->e_byteorder != LIBELF_PRIVATE(byteorder);
src = e->e_rawfile + shoff;
/*
* If the file is using extended numbering then section #0
* would have already been read in.
*/
i = 0;
if (!STAILQ_EMPTY(&e->e_u.e_elf.e_scn)) {
/* commented out to prevent build error
assert(STAILQ_FIRST(&e->e_u.e_elf.e_scn) ==
STAILQ_LAST(&e->e_u.e_elf.e_scn, _Elf_Scn, s_next));*/
i = 1;
src += fsz;
}
for (; i < shnum; i++, src += fsz) {
if ((scn = _libelf_allocate_scn(e, i)) == NULL)
return (0);
(*xlator)((char *) &scn->s_shdr, sizeof(scn->s_shdr), src,
(size_t) 1, swapbytes);
if (ec == ELFCLASS32) {
scn->s_offset = scn->s_rawoff =
scn->s_shdr.s_shdr32.sh_offset;
scn->s_size = scn->s_shdr.s_shdr32.sh_size;
} else {
scn->s_offset = scn->s_rawoff =
scn->s_shdr.s_shdr64.sh_offset;
scn->s_size = scn->s_shdr.s_shdr64.sh_size;
}
}
e->e_flags |= LIBELF_F_SHDRS_LOADED;
return (1);
}
Elf_Scn *
elf_getscn(Elf *e, size_t index)
{
int ec;
void *ehdr;
Elf_Scn *s;
if (e == NULL || e->e_kind != ELF_K_ELF ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if ((ehdr = _libelf_ehdr(e, ec, 0)) == NULL)
return (NULL);
if (e->e_cmd != ELF_C_WRITE &&
(e->e_flags & LIBELF_F_SHDRS_LOADED) == 0 &&
_libelf_load_section_headers(e, ehdr) == 0)
return (NULL);
STAILQ_FOREACH(s, &e->e_u.e_elf.e_scn, s_next)
if (s->s_ndx == index)
return (s);
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
size_t
elf_ndxscn(Elf_Scn *s)
{
if (s == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (SHN_UNDEF);
}
return (s->s_ndx);
}
Elf_Scn *
elf_newscn(Elf *e)
{
int ec;
void *ehdr;
Elf_Scn *scn;
if (e == NULL || e->e_kind != ELF_K_ELF) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) {
LIBELF_SET_ERROR(CLASS, 0);
return (NULL);
}
if ((ehdr = _libelf_ehdr(e, ec, 0)) == NULL)
return (NULL);
/*
* The application may be asking for a new section descriptor
* on an ELF object opened with ELF_C_RDWR or ELF_C_READ. We
* need to bring in the existing section information before
* appending a new one to the list.
*
* Per the ELF(3) API, an application is allowed to open a
* file using ELF_C_READ, mess with its internal structure and
* use elf_update(...,ELF_C_NULL) to compute its new layout.
*/
if (e->e_cmd != ELF_C_WRITE &&
(e->e_flags & LIBELF_F_SHDRS_LOADED) == 0 &&
_libelf_load_section_headers(e, ehdr) == 0)
return (NULL);
if (STAILQ_EMPTY(&e->e_u.e_elf.e_scn)) {
assert(e->e_u.e_elf.e_nscn == 0);
if ((scn = _libelf_allocate_scn(e, (size_t) SHN_UNDEF)) ==
NULL)
return (NULL);
e->e_u.e_elf.e_nscn++;
}
assert(e->e_u.e_elf.e_nscn > 0);
if ((scn = _libelf_allocate_scn(e, e->e_u.e_elf.e_nscn)) == NULL)
return (NULL);
e->e_u.e_elf.e_nscn++;
(void) elf_flagscn(scn, ELF_C_SET, ELF_F_DIRTY);
return (scn);
}
Elf_Scn *
elf_nextscn(Elf *e, Elf_Scn *s)
{
if (e == NULL || (e->e_kind != ELF_K_ELF) ||
(s && s->s_elf != e)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
return (s == NULL ? elf_getscn(e, (size_t) 1) :
STAILQ_NEXT(s, s_next));
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <ar.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_shnum.c 2225 2011-11-26 18:55:54Z jkoshy $");
static int
_libelf_getshdrnum(Elf *e, size_t *shnum)
{
void *eh;
int ec;
if (e == NULL || e->e_kind != ELF_K_ELF ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (-1);
}
if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
return (-1);
*shnum = e->e_u.e_elf.e_nscn;
return (0);
}
int
elf_getshdrnum(Elf *e, size_t *shnum)
{
return (_libelf_getshdrnum(e, shnum));
}
/* Deprecated API. */
int
elf_getshnum(Elf *e, size_t *shnum)
{
return (_libelf_getshdrnum(e, shnum) >= 0);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <ar.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_shstrndx.c 2225 2011-11-26 18:55:54Z jkoshy $");
static int
_libelf_getshdrstrndx(Elf *e, size_t *strndx)
{
void *eh;
int ec;
if (e == NULL || e->e_kind != ELF_K_ELF ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (-1);
}
if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
return (-1);
*strndx = e->e_u.e_elf.e_strndx;
return (0);
}
int
elf_getshdrstrndx(Elf *e, size_t *strndx)
{
return (_libelf_getshdrstrndx(e, strndx));
}
int
elf_getshstrndx(Elf *e, size_t *strndx) /* Deprecated API. */
{
return (_libelf_getshdrstrndx(e, strndx) >= 0);
}
int
elf_setshstrndx(Elf *e, size_t strndx)
{
void *eh;
int ec;
if (e == NULL || e->e_kind != ELF_K_ELF ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) ||
((eh = _libelf_ehdr(e, ec, 0)) == NULL)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
return (_libelf_setshstrndx(e, eh, ec, strndx));
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/param.h>
#include <assert.h>
#include <gelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_strptr.c 2271 2011-12-03 17:06:35Z jkoshy $");
/*
* Convert an ELF section#,offset pair to a string pointer.
*/
char *
elf_strptr(Elf *e, size_t scndx, size_t offset)
{
Elf_Scn *s;
Elf_Data *d;
size_t alignment, count;
GElf_Shdr shdr;
if (e == NULL || e->e_kind != ELF_K_ELF) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if ((s = elf_getscn(e, scndx)) == NULL ||
gelf_getshdr(s, &shdr) == NULL)
return (NULL);
if (shdr.sh_type != SHT_STRTAB ||
offset >= shdr.sh_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
d = NULL;
if (e->e_flags & ELF_F_LAYOUT) {
/*
* The application is taking responsibility for the
* ELF object's layout, so we can directly translate
* an offset to a `char *' address using the `d_off'
* members of Elf_Data descriptors.
*/
while ((d = elf_getdata(s, d)) != NULL) {
if (d->d_buf == 0 || d->d_size == 0)
continue;
if (d->d_type != ELF_T_BYTE) {
LIBELF_SET_ERROR(DATA, 0);
return (NULL);
}
if (offset >= d->d_off &&
offset < d->d_off + d->d_size)
return ((char *) d->d_buf + offset - d->d_off);
}
} else {
/*
* Otherwise, the `d_off' members are not useable and
* we need to compute offsets ourselves, taking into
* account 'holes' in coverage of the section introduced
* by alignment requirements.
*/
count = (size_t) 0; /* cumulative count of bytes seen */
while ((d = elf_getdata(s, d)) != NULL && count <= offset) {
if (d->d_buf == NULL || d->d_size == 0)
continue;
if (d->d_type != ELF_T_BYTE) {
LIBELF_SET_ERROR(DATA, 0);
return (NULL);
}
if ((alignment = d->d_align) > 1) {
if ((alignment & (alignment - 1)) != 0) {
LIBELF_SET_ERROR(DATA, 0);
return (NULL);
}
count = roundup2(count, alignment);
}
if (offset < count) {
/* offset starts in the 'hole' */
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (offset < count + d->d_size) {
if (d->d_buf != NULL)
return ((char *) d->d_buf +
offset - count);
LIBELF_SET_ERROR(DATA, 0);
return (NULL);
}
count += d->d_size;
}
}
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: elf_version.c 2225 2011-11-26 18:55:54Z jkoshy $");
unsigned int
elf_version(unsigned int v)
{
unsigned int old;
if ((old = LIBELF_PRIVATE(version)) == EV_NONE)
old = EV_CURRENT;
if (v == EV_NONE)
return old;
if (v > EV_CURRENT) {
LIBELF_SET_ERROR(VERSION, 0);
return EV_NONE;
}
LIBELF_PRIVATE(version) = v;
return (old);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: gelf.h 1168 2010-09-04 01:03:25Z jkoshy $
*/
#ifndef _GELF_H_
#define _GELF_H_
#include <sys/cdefs.h>
#include <libelf.h>
typedef Elf64_Addr GElf_Addr; /* Addresses */
typedef Elf64_Half GElf_Half; /* Half words (16 bit) */
typedef Elf64_Off GElf_Off; /* Offsets */
typedef Elf64_Sword GElf_Sword; /* Signed words (32 bit) */
typedef Elf64_Sxword GElf_Sxword; /* Signed long words (64 bit) */
typedef Elf64_Word GElf_Word; /* Unsigned words (32 bit) */
typedef Elf64_Xword GElf_Xword; /* Unsigned long words (64 bit) */
typedef Elf64_Dyn GElf_Dyn; /* ".dynamic" section entries */
typedef Elf64_Ehdr GElf_Ehdr; /* ELF header */
typedef Elf64_Phdr GElf_Phdr; /* Program header */
typedef Elf64_Shdr GElf_Shdr; /* Section header */
typedef Elf64_Sym GElf_Sym; /* Symbol table entries */
typedef Elf64_Rel GElf_Rel; /* Relocation entries */
typedef Elf64_Rela GElf_Rela; /* Relocation entries with addend */
typedef Elf64_Cap GElf_Cap; /* SW/HW capabilities */
typedef Elf64_Move GElf_Move; /* Move entries */
typedef Elf64_Syminfo GElf_Syminfo; /* Symbol information */
#define GELF_M_INFO ELF64_M_INFO
#define GELF_M_SIZE ELF64_M_SIZE
#define GELF_M_SYM ELF64_M_SYM
#define GELF_R_INFO ELF64_R_INFO
#define GELF_R_SYM ELF64_R_SYM
#define GELF_R_TYPE ELF64_R_TYPE
#define GELF_R_TYPE_DATA ELF64_R_TYPE_DATA
#define GELF_R_TYPE_ID ELF64_R_TYPE_ID
#define GELF_R_TYPE_INFO ELF64_R_TYPE_INFO
#define GELF_ST_BIND ELF64_ST_BIND
#define GELF_ST_INFO ELF64_ST_INFO
#define GELF_ST_TYPE ELF64_ST_TYPE
#define GELF_ST_VISIBILITY ELF64_ST_VISIBILITY
long gelf_checksum(Elf *_elf);
size_t gelf_fsize(Elf *_elf, Elf_Type _type, size_t _count,
unsigned int _version);
int gelf_getclass(Elf *_elf);
GElf_Dyn *gelf_getdyn(Elf_Data *_data, int _index, GElf_Dyn *_dst);
GElf_Ehdr *gelf_getehdr(Elf *_elf, GElf_Ehdr *_dst);
GElf_Phdr *gelf_getphdr(Elf *_elf, int _index, GElf_Phdr *_dst);
GElf_Rel *gelf_getrel(Elf_Data *_src, int _index, GElf_Rel *_dst);
GElf_Rela *gelf_getrela(Elf_Data *_src, int _index, GElf_Rela *_dst);
GElf_Shdr *gelf_getshdr(Elf_Scn *_scn, GElf_Shdr *_dst);
GElf_Sym *gelf_getsym(Elf_Data *_src, int _index, GElf_Sym *_dst);
GElf_Sym *gelf_getsymshndx(Elf_Data *_src, Elf_Data *_shindexsrc,
int _index, GElf_Sym *_dst, Elf32_Word *_shindexdst);
void * gelf_newehdr(Elf *_elf, int _class);
void * gelf_newphdr(Elf *_elf, size_t _phnum);
int gelf_update_dyn(Elf_Data *_dst, int _index, GElf_Dyn *_src);
int gelf_update_ehdr(Elf *_elf, GElf_Ehdr *_src);
int gelf_update_phdr(Elf *_elf, int _index, GElf_Phdr *_src);
int gelf_update_rel(Elf_Data *_dst, int _index, GElf_Rel *_src);
int gelf_update_rela(Elf_Data *_dst, int _index, GElf_Rela *_src);
int gelf_update_shdr(Elf_Scn *_dst, GElf_Shdr *_src);
int gelf_update_sym(Elf_Data *_dst, int _index, GElf_Sym *_src);
int gelf_update_symshndx(Elf_Data *_symdst, Elf_Data *_shindexdst,
int _index, GElf_Sym *_symsrc, Elf32_Word _shindexsrc);
Elf_Data *gelf_xlatetof(Elf *_elf, Elf_Data *_dst, const Elf_Data *_src, unsigned int _encode);
Elf_Data *gelf_xlatetom(Elf *_elf, Elf_Data *_dst, const Elf_Data *_src, unsigned int _encode);
GElf_Cap *gelf_getcap(Elf_Data *_data, int _index, GElf_Cap *_cap);
GElf_Move *gelf_getmove(Elf_Data *_src, int _index, GElf_Move *_dst);
GElf_Syminfo *gelf_getsyminfo(Elf_Data *_src, int _index, GElf_Syminfo *_dst);
int gelf_update_cap(Elf_Data *_dst, int _index, GElf_Cap *_src);
int gelf_update_move(Elf_Data *_dst, int _index, GElf_Move *_src);
int gelf_update_syminfo(Elf_Data *_dst, int _index, GElf_Syminfo *_src);
#endif /* _GELF_H_ */

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <limits.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_cap.c 2272 2011-12-03 17:07:31Z jkoshy $");
GElf_Cap *
gelf_getcap(Elf_Data *ed, int ndx, GElf_Cap *dst)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
Elf32_Cap *cap32;
Elf64_Cap *cap64;
uint32_t sh_type;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dst == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_CAP) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_CAP, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
cap32 = (Elf32_Cap *) d->d_data.d_buf + ndx;
dst->c_tag = cap32->c_tag;
dst->c_un.c_val = (Elf64_Xword) cap32->c_un.c_val;
} else {
cap64 = (Elf64_Cap *) d->d_data.d_buf + ndx;
*dst = *cap64;
}
return (dst);
}
int
gelf_update_cap(Elf_Data *ed, int ndx, GElf_Cap *gc)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
Elf32_Cap *cap32;
Elf64_Cap *cap64;
uint32_t sh_type;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || gc == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_CAP) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
msz = _libelf_msize(ELF_T_CAP, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32) {
cap32 = (Elf32_Cap *) d->d_data.d_buf + ndx;
LIBELF_COPY_U32(cap32, gc, c_tag);
LIBELF_COPY_U32(cap32, gc, c_un.c_val);
} else {
cap64 = (Elf64_Cap *) d->d_data.d_buf + ndx;
*cap64 = *gc;
}
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <gelf.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_checksum.c 2225 2011-11-26 18:55:54Z jkoshy $");
long
elf32_checksum(Elf *e)
{
return (_libelf_checksum(e, ELFCLASS32));
}
long
elf64_checksum(Elf *e)
{
return (_libelf_checksum(e, ELFCLASS64));
}
long
gelf_checksum(Elf *e)
{
int ec;
if (e == NULL ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0L);
}
return (_libelf_checksum(e, ec));
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <limits.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_dyn.c 2272 2011-12-03 17:07:31Z jkoshy $");
GElf_Dyn *
gelf_getdyn(Elf_Data *ed, int ndx, GElf_Dyn *dst)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
Elf32_Dyn *dyn32;
Elf64_Dyn *dyn64;
uint32_t sh_type;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dst == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_DYN) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_DYN, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
dyn32 = (Elf32_Dyn *) d->d_data.d_buf + ndx;
dst->d_tag = dyn32->d_tag;
dst->d_un.d_val = (Elf64_Xword) dyn32->d_un.d_val;
} else {
dyn64 = (Elf64_Dyn *) d->d_data.d_buf + ndx;
*dst = *dyn64;
}
return (dst);
}
int
gelf_update_dyn(Elf_Data *ed, int ndx, GElf_Dyn *ds)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
Elf32_Dyn *dyn32;
Elf64_Dyn *dyn64;
uint32_t sh_type;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || ds == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_DYN) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
msz = _libelf_msize(ELF_T_DYN, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32) {
dyn32 = (Elf32_Dyn *) d->d_data.d_buf + ndx;
LIBELF_COPY_S32(dyn32, ds, d_tag);
LIBELF_COPY_U32(dyn32, ds, d_un.d_val);
} else {
dyn64 = (Elf64_Dyn *) d->d_data.d_buf + ndx;
*dyn64 = *ds;
}
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <libelf.h>
#include <limits.h>
#include <string.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_ehdr.c 2268 2011-12-03 17:05:11Z jkoshy $");
Elf32_Ehdr *
elf32_getehdr(Elf *e)
{
return (_libelf_ehdr(e, ELFCLASS32, 0));
}
Elf64_Ehdr *
elf64_getehdr(Elf *e)
{
return (_libelf_ehdr(e, ELFCLASS64, 0));
}
GElf_Ehdr *
gelf_getehdr(Elf *e, GElf_Ehdr *d)
{
int ec;
Elf32_Ehdr *eh32;
Elf64_Ehdr *eh64;
if (d == NULL || e == NULL ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
if ((eh32 = _libelf_ehdr(e, ELFCLASS32, 0)) == NULL)
return (NULL);
(void) memcpy(d->e_ident, eh32->e_ident,
sizeof(eh32->e_ident));
d->e_type = eh32->e_type;
d->e_machine = eh32->e_machine;
d->e_version = eh32->e_version;
d->e_entry = eh32->e_entry;
d->e_phoff = eh32->e_phoff;
d->e_shoff = eh32->e_shoff;
d->e_flags = eh32->e_flags;
d->e_ehsize = eh32->e_ehsize;
d->e_phentsize = eh32->e_phentsize;
d->e_phnum = eh32->e_phnum;
d->e_shentsize = eh32->e_shentsize;
d->e_shnum = eh32->e_shnum;
d->e_shstrndx = eh32->e_shstrndx;
return (d);
}
assert(ec == ELFCLASS64);
if ((eh64 = _libelf_ehdr(e, ELFCLASS64, 0)) == NULL)
return (NULL);
*d = *eh64;
return (d);
}
Elf32_Ehdr *
elf32_newehdr(Elf *e)
{
return (_libelf_ehdr(e, ELFCLASS32, 1));
}
Elf64_Ehdr *
elf64_newehdr(Elf *e)
{
return (_libelf_ehdr(e, ELFCLASS64, 1));
}
void *
gelf_newehdr(Elf *e, int ec)
{
if (e != NULL &&
(ec == ELFCLASS32 || ec == ELFCLASS64))
return (_libelf_ehdr(e, ec, 1));
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
int
gelf_update_ehdr(Elf *e, GElf_Ehdr *s)
{
int ec;
void *ehdr;
Elf32_Ehdr *eh32;
Elf64_Ehdr *eh64;
if (s== NULL || e == NULL || e->e_kind != ELF_K_ELF ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (e->e_cmd == ELF_C_READ) {
LIBELF_SET_ERROR(MODE, 0);
return (0);
}
if ((ehdr = _libelf_ehdr(e, ec, 0)) == NULL)
return (0);
(void) elf_flagehdr(e, ELF_C_SET, ELF_F_DIRTY);
if (ec == ELFCLASS64) {
eh64 = (Elf64_Ehdr *) ehdr;
*eh64 = *s;
return (1);
}
eh32 = (Elf32_Ehdr *) ehdr;
(void) memcpy(eh32->e_ident, s->e_ident, sizeof(eh32->e_ident));
eh32->e_type = s->e_type;
eh32->e_machine = s->e_machine;
eh32->e_version = s->e_version;
LIBELF_COPY_U32(eh32, s, e_entry);
LIBELF_COPY_U32(eh32, s, e_phoff);
LIBELF_COPY_U32(eh32, s, e_shoff);
eh32->e_flags = s->e_flags;
eh32->e_ehsize = s->e_ehsize;
eh32->e_phentsize = s->e_phentsize;
eh32->e_phnum = s->e_phnum;
eh32->e_shentsize = s->e_shentsize;
eh32->e_shnum = s->e_shnum;
eh32->e_shstrndx = s->e_shstrndx;
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <gelf.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_fsize.c 2225 2011-11-26 18:55:54Z jkoshy $");
size_t
elf32_fsize(Elf_Type t, size_t c, unsigned int v)
{
return (_libelf_fsize(t, ELFCLASS32, v, c));
}
size_t
elf64_fsize(Elf_Type t, size_t c, unsigned int v)
{
return (_libelf_fsize(t, ELFCLASS64, v, c));
}
size_t
gelf_fsize(Elf *e, Elf_Type t, size_t c, unsigned int v)
{
if (e == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (e->e_class == ELFCLASS32 || e->e_class == ELFCLASS64)
return (_libelf_fsize(t, e->e_class, v, c));
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <gelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_getclass.c 2225 2011-11-26 18:55:54Z jkoshy $");
int
gelf_getclass(Elf *e)
{
return (e != NULL ? e->e_class : ELFCLASSNONE);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <limits.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_move.c 2272 2011-12-03 17:07:31Z jkoshy $");
GElf_Move *
gelf_getmove(Elf_Data *ed, int ndx, GElf_Move *dst)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
Elf32_Move *move32;
Elf64_Move *move64;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dst == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_MOVE) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_MOVE, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
move32 = (Elf32_Move *) d->d_data.d_buf + ndx;
dst->m_value = move32->m_value;
dst->m_info = (Elf64_Xword) move32->m_info;
dst->m_poffset = (Elf64_Xword) move32->m_poffset;
dst->m_repeat = move32->m_repeat;
dst->m_stride = move32->m_stride;
} else {
move64 = (Elf64_Move *) d->d_data.d_buf + ndx;
*dst = *move64;
}
return (dst);
}
int
gelf_update_move(Elf_Data *ed, int ndx, GElf_Move *gm)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
Elf32_Move *move32;
Elf64_Move *move64;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || gm == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_MOVE) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
msz = _libelf_msize(ELF_T_MOVE, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32) {
move32 = (Elf32_Move *) d->d_data.d_buf + ndx;
move32->m_value = gm->m_value;
LIBELF_COPY_U32(move32, gm, m_info);
LIBELF_COPY_U32(move32, gm, m_poffset);
move32->m_repeat = gm->m_repeat;
move32->m_stride = gm->m_stride;
} else {
move64 = (Elf64_Move *) d->d_data.d_buf + ndx;
*move64 = *gm;
}
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <gelf.h>
#include <libelf.h>
#include <limits.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_phdr.c 2268 2011-12-03 17:05:11Z jkoshy $");
Elf32_Phdr *
elf32_getphdr(Elf *e)
{
return (_libelf_getphdr(e, ELFCLASS32));
}
Elf64_Phdr *
elf64_getphdr(Elf *e)
{
return (_libelf_getphdr(e, ELFCLASS64));
}
GElf_Phdr *
gelf_getphdr(Elf *e, int index, GElf_Phdr *d)
{
int ec;
Elf32_Ehdr *eh32;
Elf64_Ehdr *eh64;
Elf32_Phdr *ep32;
Elf64_Phdr *ep64;
if (d == NULL || e == NULL ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) ||
(e->e_kind != ELF_K_ELF) || index < 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
if ((eh32 = _libelf_ehdr(e, ELFCLASS32, 0)) == NULL ||
((ep32 = _libelf_getphdr(e, ELFCLASS32)) == NULL))
return (NULL);
if (index >= eh32->e_phnum) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ep32 += index;
d->p_type = ep32->p_type;
d->p_offset = ep32->p_offset;
d->p_vaddr = (Elf64_Addr) ep32->p_vaddr;
d->p_paddr = (Elf64_Addr) ep32->p_paddr;
d->p_filesz = (Elf64_Xword) ep32->p_filesz;
d->p_memsz = (Elf64_Xword) ep32->p_memsz;
d->p_flags = ep32->p_flags;
d->p_align = (Elf64_Xword) ep32->p_align;
} else {
if ((eh64 = _libelf_ehdr(e, ELFCLASS64, 0)) == NULL ||
(ep64 = _libelf_getphdr(e, ELFCLASS64)) == NULL)
return (NULL);
if (index >= eh64->e_phnum) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ep64 += index;
*d = *ep64;
}
return (d);
}
Elf32_Phdr *
elf32_newphdr(Elf *e, size_t count)
{
return (_libelf_newphdr(e, ELFCLASS32, count));
}
Elf64_Phdr *
elf64_newphdr(Elf *e, size_t count)
{
return (_libelf_newphdr(e, ELFCLASS64, count));
}
void *
gelf_newphdr(Elf *e, size_t count)
{
if (e == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
return (_libelf_newphdr(e, e->e_class, count));
}
int
gelf_update_phdr(Elf *e, int ndx, GElf_Phdr *s)
{
int ec, phnum;
void *ehdr;
Elf32_Phdr *ph32;
Elf64_Phdr *ph64;
if (s == NULL || e == NULL || e->e_kind != ELF_K_ELF ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (e->e_cmd == ELF_C_READ) {
LIBELF_SET_ERROR(MODE, 0);
return (0);
}
if ((ehdr = _libelf_ehdr(e, ec, 0)) == NULL)
return (0);
if (ec == ELFCLASS32)
phnum = ((Elf32_Ehdr *) ehdr)->e_phnum;
else
phnum = ((Elf64_Ehdr *) ehdr)->e_phnum;
if (ndx < 0 || ndx > phnum) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
(void) elf_flagphdr(e, ELF_C_SET, ELF_F_DIRTY);
if (ec == ELFCLASS64) {
ph64 = e->e_u.e_elf.e_phdr.e_phdr64 + ndx;
*ph64 = *s;
return (1);
}
ph32 = e->e_u.e_elf.e_phdr.e_phdr32 + ndx;
ph32->p_type = s->p_type;
ph32->p_flags = s->p_flags;
LIBELF_COPY_U32(ph32, s, p_offset);
LIBELF_COPY_U32(ph32, s, p_vaddr);
LIBELF_COPY_U32(ph32, s, p_paddr);
LIBELF_COPY_U32(ph32, s, p_filesz);
LIBELF_COPY_U32(ph32, s, p_memsz);
LIBELF_COPY_U32(ph32, s, p_align);
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <limits.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_rel.c 2272 2011-12-03 17:07:31Z jkoshy $");
GElf_Rel *
gelf_getrel(Elf_Data *ed, int ndx, GElf_Rel *dst)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
Elf32_Rel *rel32;
Elf64_Rel *rel64;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dst == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_REL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_REL, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
rel32 = (Elf32_Rel *) d->d_data.d_buf + ndx;
dst->r_offset = (Elf64_Addr) rel32->r_offset;
dst->r_info = ELF64_R_INFO(
(Elf64_Xword) ELF32_R_SYM(rel32->r_info),
ELF32_R_TYPE(rel32->r_info));
} else {
rel64 = (Elf64_Rel *) d->d_data.d_buf + ndx;
*dst = *rel64;
}
return (dst);
}
int
gelf_update_rel(Elf_Data *ed, int ndx, GElf_Rel *dr)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
Elf32_Rel *rel32;
Elf64_Rel *rel64;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dr == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_REL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
msz = _libelf_msize(ELF_T_REL, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32) {
rel32 = (Elf32_Rel *) d->d_data.d_buf + ndx;
LIBELF_COPY_U32(rel32, dr, r_offset);
if (ELF64_R_SYM(dr->r_info) > ELF32_R_SYM(~0UL) ||
ELF64_R_TYPE(dr->r_info) > ELF32_R_TYPE(~0U)) {
LIBELF_SET_ERROR(RANGE, 0);
return (0);
}
rel32->r_info = ELF32_R_INFO(ELF64_R_SYM(dr->r_info),
ELF64_R_TYPE(dr->r_info));
} else {
rel64 = (Elf64_Rel *) d->d_data.d_buf + ndx;
*rel64 = *dr;
}
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <limits.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_rela.c 2272 2011-12-03 17:07:31Z jkoshy $");
GElf_Rela *
gelf_getrela(Elf_Data *ed, int ndx, GElf_Rela *dst)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
Elf32_Rela *rela32;
Elf64_Rela *rela64;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dst == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_RELA) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_RELA, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
rela32 = (Elf32_Rela *) d->d_data.d_buf + ndx;
dst->r_offset = (Elf64_Addr) rela32->r_offset;
dst->r_info = ELF64_R_INFO(
(Elf64_Xword) ELF32_R_SYM(rela32->r_info),
ELF32_R_TYPE(rela32->r_info));
dst->r_addend = (Elf64_Sxword) rela32->r_addend;
} else {
rela64 = (Elf64_Rela *) d->d_data.d_buf + ndx;
*dst = *rela64;
}
return (dst);
}
int
gelf_update_rela(Elf_Data *ed, int ndx, GElf_Rela *dr)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
Elf32_Rela *rela32;
Elf64_Rela *rela64;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dr == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_RELA) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
msz = _libelf_msize(ELF_T_RELA, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32) {
rela32 = (Elf32_Rela *) d->d_data.d_buf + ndx;
LIBELF_COPY_U32(rela32, dr, r_offset);
if (ELF64_R_SYM(dr->r_info) > ELF32_R_SYM(~0UL) ||
ELF64_R_TYPE(dr->r_info) > ELF32_R_TYPE(~0U)) {
LIBELF_SET_ERROR(RANGE, 0);
return (0);
}
rela32->r_info = ELF32_R_INFO(ELF64_R_SYM(dr->r_info),
ELF64_R_TYPE(dr->r_info));
LIBELF_COPY_S32(rela32, dr, r_addend);
} else {
rela64 = (Elf64_Rela *) d->d_data.d_buf + ndx;
*rela64 = *dr;
}
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <libelf.h>
#include <limits.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_shdr.c 2268 2011-12-03 17:05:11Z jkoshy $");
Elf32_Shdr *
elf32_getshdr(Elf_Scn *s)
{
return (_libelf_getshdr(s, ELFCLASS32));
}
Elf64_Shdr *
elf64_getshdr(Elf_Scn *s)
{
return (_libelf_getshdr(s, ELFCLASS64));
}
GElf_Shdr *
gelf_getshdr(Elf_Scn *s, GElf_Shdr *d)
{
int ec;
void *sh;
Elf32_Shdr *sh32;
Elf64_Shdr *sh64;
if (d == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if ((sh = _libelf_getshdr(s, ELFCLASSNONE)) == NULL)
return (NULL);
ec = s->s_elf->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32) {
sh32 = (Elf32_Shdr *) sh;
d->sh_name = sh32->sh_name;
d->sh_type = sh32->sh_type;
d->sh_flags = (Elf64_Xword) sh32->sh_flags;
d->sh_addr = (Elf64_Addr) sh32->sh_addr;
d->sh_offset = (Elf64_Off) sh32->sh_offset;
d->sh_size = (Elf64_Xword) sh32->sh_size;
d->sh_link = sh32->sh_link;
d->sh_info = sh32->sh_info;
d->sh_addralign = (Elf64_Xword) sh32->sh_addralign;
d->sh_entsize = (Elf64_Xword) sh32->sh_entsize;
} else {
sh64 = (Elf64_Shdr *) sh;
*d = *sh64;
}
return (d);
}
int
gelf_update_shdr(Elf_Scn *scn, GElf_Shdr *s)
{
int ec;
Elf *e;
Elf32_Shdr *sh32;
if (s == NULL || scn == NULL || (e = scn->s_elf) == NULL ||
e->e_kind != ELF_K_ELF ||
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (e->e_cmd == ELF_C_READ) {
LIBELF_SET_ERROR(MODE, 0);
return (0);
}
(void) elf_flagscn(scn, ELF_C_SET, ELF_F_DIRTY);
if (ec == ELFCLASS64) {
scn->s_shdr.s_shdr64 = *s;
return (1);
}
sh32 = &scn->s_shdr.s_shdr32;
sh32->sh_name = s->sh_name;
sh32->sh_type = s->sh_type;
LIBELF_COPY_U32(sh32, s, sh_flags);
LIBELF_COPY_U32(sh32, s, sh_addr);
LIBELF_COPY_U32(sh32, s, sh_offset);
LIBELF_COPY_U32(sh32, s, sh_size);
sh32->sh_link = s->sh_link;
sh32->sh_info = s->sh_info;
LIBELF_COPY_U32(sh32, s, sh_addralign);
LIBELF_COPY_U32(sh32, s, sh_entsize);
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <limits.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_sym.c 2272 2011-12-03 17:07:31Z jkoshy $");
GElf_Sym *
gelf_getsym(Elf_Data *ed, int ndx, GElf_Sym *dst)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
Elf32_Sym *sym32;
Elf64_Sym *sym64;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dst == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_SYM) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_SYM, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
sym32 = (Elf32_Sym *) d->d_data.d_buf + ndx;
dst->st_name = sym32->st_name;
dst->st_value = (Elf64_Addr) sym32->st_value;
dst->st_size = (Elf64_Xword) sym32->st_size;
dst->st_info = ELF64_ST_INFO(ELF32_ST_BIND(sym32->st_info),
ELF32_ST_TYPE(sym32->st_info));
dst->st_other = sym32->st_other;
dst->st_shndx = sym32->st_shndx;
} else {
sym64 = (Elf64_Sym *) d->d_data.d_buf + ndx;
*dst = *sym64;
}
return (dst);
}
int
gelf_update_sym(Elf_Data *ed, int ndx, GElf_Sym *gs)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
Elf32_Sym *sym32;
Elf64_Sym *sym64;
struct _Libelf_Data *d;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || gs == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_SYM) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
msz = _libelf_msize(ELF_T_SYM, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32) {
sym32 = (Elf32_Sym *) d->d_data.d_buf + ndx;
sym32->st_name = gs->st_name;
sym32->st_info = gs->st_info;
sym32->st_other = gs->st_other;
sym32->st_shndx = gs->st_shndx;
LIBELF_COPY_U32(sym32, gs, st_value);
LIBELF_COPY_U32(sym32, gs, st_size);
} else {
sym64 = (Elf64_Sym *) d->d_data.d_buf + ndx;
*sym64 = *gs;
}
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_syminfo.c 2272 2011-12-03 17:07:31Z jkoshy $");
GElf_Syminfo *
gelf_getsyminfo(Elf_Data *ed, int ndx, GElf_Syminfo *dst)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
struct _Libelf_Data *d;
Elf32_Syminfo *syminfo32;
Elf64_Syminfo *syminfo64;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || dst == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_SYMINFO) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_SYMINFO, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
syminfo32 = (Elf32_Syminfo *) d->d_data.d_buf + ndx;
dst->si_boundto = syminfo32->si_boundto;
dst->si_flags = syminfo32->si_flags;
} else {
syminfo64 = (Elf64_Syminfo *) d->d_data.d_buf + ndx;
*dst = *syminfo64;
}
return (dst);
}
int
gelf_update_syminfo(Elf_Data *ed, int ndx, GElf_Syminfo *gs)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
struct _Libelf_Data *d;
Elf32_Syminfo *syminfo32;
Elf64_Syminfo *syminfo64;
d = (struct _Libelf_Data *) ed;
if (d == NULL || ndx < 0 || gs == NULL ||
(scn = d->d_scn) == NULL ||
(e = scn->s_elf) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_SYMINFO) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
msz = _libelf_msize(ELF_T_SYMINFO, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= d->d_data.d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
if (ec == ELFCLASS32) {
syminfo32 = (Elf32_Syminfo *) d->d_data.d_buf + ndx;
syminfo32->si_boundto = gs->si_boundto;
syminfo32->si_flags = gs->si_flags;
} else {
syminfo64 = (Elf64_Syminfo *) d->d_data.d_buf + ndx;
*syminfo64 = *gs;
}
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_symshndx.c 2283 2011-12-04 04:07:24Z jkoshy $");
GElf_Sym *
gelf_getsymshndx(Elf_Data *d, Elf_Data *id, int ndx, GElf_Sym *dst,
Elf32_Word *shindex)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
struct _Libelf_Data *ld, *lid;
ld = (struct _Libelf_Data *) d;
lid = (struct _Libelf_Data *) id;
if (gelf_getsym(d, ndx, dst) == 0)
return (NULL);
if (lid == NULL || (scn = lid->d_scn) == NULL ||
(e = scn->s_elf) == NULL || (e != ld->d_scn->s_elf) ||
shindex == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_WORD ||
id->d_type != ELF_T_WORD) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_WORD, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= id->d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
*shindex = ((Elf32_Word *) id->d_buf)[ndx];
return (dst);
}
int
gelf_update_symshndx(Elf_Data *d, Elf_Data *id, int ndx, GElf_Sym *gs,
Elf32_Word xindex)
{
int ec;
Elf *e;
size_t msz;
Elf_Scn *scn;
uint32_t sh_type;
struct _Libelf_Data *ld, *lid;
ld = (struct _Libelf_Data *) d;
lid = (struct _Libelf_Data *) id;
if (gelf_update_sym(d, ndx, gs) == 0)
return (0);
if (lid == NULL || (scn = lid->d_scn) == NULL ||
(e = scn->s_elf) == NULL || (e != ld->d_scn->s_elf)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
ec = e->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32)
sh_type = scn->s_shdr.s_shdr32.sh_type;
else
sh_type = scn->s_shdr.s_shdr64.sh_type;
if (_libelf_xlate_shtype(sh_type) != ELF_T_WORD ||
d->d_type != ELF_T_WORD) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
msz = _libelf_msize(ELF_T_WORD, ec, e->e_version);
assert(msz > 0);
if (msz * ndx >= id->d_size) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0);
}
*(((Elf32_Word *) id->d_buf) + ndx) = xindex;
return (1);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <gelf.h>
#include <libelf.h>
#include <string.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: gelf_xlate.c 2225 2011-11-26 18:55:54Z jkoshy $");
Elf_Data *
elf32_xlatetof(Elf_Data *dst, const Elf_Data *src, unsigned int encoding)
{
return _libelf_xlate(dst, src, encoding, ELFCLASS32, ELF_TOFILE);
}
Elf_Data *
elf64_xlatetof(Elf_Data *dst, const Elf_Data *src, unsigned int encoding)
{
return _libelf_xlate(dst, src, encoding, ELFCLASS64, ELF_TOFILE);
}
Elf_Data *
elf32_xlatetom(Elf_Data *dst, const Elf_Data *src, unsigned int encoding)
{
return _libelf_xlate(dst, src, encoding, ELFCLASS32, ELF_TOMEMORY);
}
Elf_Data *
elf64_xlatetom(Elf_Data *dst, const Elf_Data *src, unsigned int encoding)
{
return _libelf_xlate(dst, src, encoding, ELFCLASS64, ELF_TOMEMORY);
}
Elf_Data *
gelf_xlatetom(Elf *e, Elf_Data *dst, const Elf_Data *src,
unsigned int encoding)
{
if (e != NULL)
return (_libelf_xlate(dst, src, encoding, e->e_class,
ELF_TOMEMORY));
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
Elf_Data *
gelf_xlatetof(Elf *e, Elf_Data *dst, const Elf_Data *src,
unsigned int encoding)
{
if (e != NULL)
return (_libelf_xlate(dst, src, encoding, e->e_class,
ELF_TOFILE));
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}

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/*-
* Copyright (c) 2006,2008-2010 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: libelf.h 2366 2011-12-29 06:12:14Z jkoshy $
*/
#ifndef _LIBELF_H_
#define _LIBELF_H_
#include <sys/types.h>
#include <elfdefinitions.h>
/* Library private data structures */
typedef struct _Elf Elf;
typedef struct _Elf_Scn Elf_Scn;
/* File types */
typedef enum {
ELF_K_NONE = 0,
ELF_K_AR, /* `ar' archives */
ELF_K_COFF, /* COFF files (unsupported) */
ELF_K_ELF, /* ELF files */
ELF_K_NUM
} Elf_Kind;
#define ELF_K_FIRST ELF_K_NONE
#define ELF_K_LAST ELF_K_NUM
/* Data types */
typedef enum {
ELF_T_ADDR,
ELF_T_BYTE,
ELF_T_CAP,
ELF_T_DYN,
ELF_T_EHDR,
ELF_T_HALF,
ELF_T_LWORD,
ELF_T_MOVE,
ELF_T_MOVEP,
ELF_T_NOTE,
ELF_T_OFF,
ELF_T_PHDR,
ELF_T_REL,
ELF_T_RELA,
ELF_T_SHDR,
ELF_T_SWORD,
ELF_T_SXWORD,
ELF_T_SYMINFO,
ELF_T_SYM,
ELF_T_VDEF,
ELF_T_VNEED,
ELF_T_WORD,
ELF_T_XWORD,
ELF_T_GNUHASH, /* GNU style hash tables. */
ELF_T_NUM
} Elf_Type;
#define ELF_T_FIRST ELF_T_ADDR
#define ELF_T_LAST ELF_T_GNUHASH
/* Commands */
typedef enum {
ELF_C_NULL = 0,
ELF_C_CLR,
ELF_C_FDDONE,
ELF_C_FDREAD,
ELF_C_RDWR,
ELF_C_READ,
ELF_C_SET,
ELF_C_WRITE,
ELF_C_NUM
} Elf_Cmd;
#define ELF_C_FIRST ELF_C_NULL
#define ELF_C_LAST ELF_C_NUM
/*
* An `Elf_Data' structure describes data in an
* ELF section.
*/
typedef struct _Elf_Data {
/*
* `Public' members that are part of the ELF(3) API.
*/
uint64_t d_align;
void *d_buf;
uint64_t d_off;
uint64_t d_size;
Elf_Type d_type;
unsigned int d_version;
} Elf_Data;
/*
* An `Elf_Arhdr' structure describes an archive
* header.
*/
typedef struct {
time_t ar_date;
char *ar_name; /* archive member name */
gid_t ar_gid;
mode_t ar_mode;
char *ar_rawname; /* 'raw' member name */
size_t ar_size;
uid_t ar_uid;
/*
* Members that are not part of the public API.
*/
int ar_flags;
} Elf_Arhdr;
/*
* An `Elf_Arsym' describes an entry in the archive
* symbol table.
*/
typedef struct {
off_t as_off; /* byte offset to member's header */
unsigned long as_hash; /* elf_hash() value for name */
char *as_name; /* null terminated symbol name */
} Elf_Arsym;
/*
* Error numbers.
*/
enum Elf_Error {
ELF_E_NONE, /* No error */
ELF_E_ARCHIVE, /* Malformed ar(1) archive */
ELF_E_ARGUMENT, /* Invalid argument */
ELF_E_CLASS, /* Mismatched ELF class */
ELF_E_DATA, /* Invalid data descriptor */
ELF_E_HEADER, /* Missing or malformed ELF header */
ELF_E_IO, /* I/O error */
ELF_E_LAYOUT, /* Layout constraint violation */
ELF_E_MODE, /* Wrong mode for ELF descriptor */
ELF_E_RANGE, /* Value out of range */
ELF_E_RESOURCE, /* Resource exhaustion */
ELF_E_SECTION, /* Invalid section descriptor */
ELF_E_SEQUENCE, /* API calls out of sequence */
ELF_E_UNIMPL, /* Feature is unimplemented */
ELF_E_VERSION, /* Unknown API version */
ELF_E_NUM /* Max error number */
};
/*
* Flags defined by the API.
*/
#define ELF_F_LAYOUT 0x001U /* application will layout the file */
#define ELF_F_DIRTY 0x002U /* a section or ELF file is dirty */
/* ELF(3) API extensions. */
#define ELF_F_ARCHIVE 0x100U /* archive creation */
#define ELF_F_ARCHIVE_SYSV 0x200U /* SYSV style archive */
Elf *elf_begin(int _fd, Elf_Cmd _cmd, Elf *_elf);
int elf_cntl(Elf *_elf, Elf_Cmd _cmd);
int elf_end(Elf *_elf);
const char *elf_errmsg(int _error);
int elf_errno(void);
void elf_fill(int _fill);
unsigned int elf_flagarhdr(Elf_Arhdr *_arh, Elf_Cmd _cmd,
unsigned int _flags);
unsigned int elf_flagdata(Elf_Data *_data, Elf_Cmd _cmd,
unsigned int _flags);
unsigned int elf_flagehdr(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags);
unsigned int elf_flagelf(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags);
unsigned int elf_flagphdr(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags);
unsigned int elf_flagscn(Elf_Scn *_scn, Elf_Cmd _cmd, unsigned int _flags);
unsigned int elf_flagshdr(Elf_Scn *_scn, Elf_Cmd _cmd, unsigned int _flags);
Elf_Arhdr *elf_getarhdr(Elf *_elf);
Elf_Arsym *elf_getarsym(Elf *_elf, size_t *_ptr);
off_t elf_getbase(Elf *_elf);
Elf_Data *elf_getdata(Elf_Scn *, Elf_Data *);
char *elf_getident(Elf *_elf, size_t *_ptr);
int elf_getphdrnum(Elf *_elf, size_t *_dst);
int elf_getphnum(Elf *_elf, size_t *_dst); /* Deprecated */
Elf_Scn *elf_getscn(Elf *_elf, size_t _index);
int elf_getshdrnum(Elf *_elf, size_t *_dst);
int elf_getshnum(Elf *_elf, size_t *_dst); /* Deprecated */
int elf_getshdrstrndx(Elf *_elf, size_t *_dst);
int elf_getshstrndx(Elf *_elf, size_t *_dst); /* Deprecated */
unsigned long elf_hash(const char *_name);
Elf_Kind elf_kind(Elf *_elf);
Elf *elf_memory(char *_image, size_t _size);
size_t elf_ndxscn(Elf_Scn *_scn);
Elf_Data *elf_newdata(Elf_Scn *_scn);
Elf_Scn *elf_newscn(Elf *_elf);
Elf_Scn *elf_nextscn(Elf *_elf, Elf_Scn *_scn);
Elf_Cmd elf_next(Elf *_elf);
Elf *elf_open(int _fd);
Elf *elf_openmemory(char *_image, size_t _size);
off_t elf_rand(Elf *_elf, off_t _off);
Elf_Data *elf_rawdata(Elf_Scn *_scn, Elf_Data *_data);
char *elf_rawfile(Elf *_elf, size_t *_size);
int elf_setshstrndx(Elf *_elf, size_t _shnum);
char *elf_strptr(Elf *_elf, size_t _section, size_t _offset);
off_t elf_update(Elf *_elf, Elf_Cmd _cmd);
unsigned int elf_version(unsigned int _version);
long elf32_checksum(Elf *_elf);
size_t elf32_fsize(Elf_Type _type, size_t _count,
unsigned int _version);
Elf32_Ehdr *elf32_getehdr(Elf *_elf);
Elf32_Phdr *elf32_getphdr(Elf *_elf);
Elf32_Shdr *elf32_getshdr(Elf_Scn *_scn);
Elf32_Ehdr *elf32_newehdr(Elf *_elf);
Elf32_Phdr *elf32_newphdr(Elf *_elf, size_t _count);
Elf_Data *elf32_xlatetof(Elf_Data *_dst, const Elf_Data *_src,
unsigned int _enc);
Elf_Data *elf32_xlatetom(Elf_Data *_dst, const Elf_Data *_src,
unsigned int _enc);
long elf64_checksum(Elf *_elf);
size_t elf64_fsize(Elf_Type _type, size_t _count,
unsigned int _version);
Elf64_Ehdr *elf64_getehdr(Elf *_elf);
Elf64_Phdr *elf64_getphdr(Elf *_elf);
Elf64_Shdr *elf64_getshdr(Elf_Scn *_scn);
Elf64_Ehdr *elf64_newehdr(Elf *_elf);
Elf64_Phdr *elf64_newphdr(Elf *_elf, size_t _count);
Elf_Data *elf64_xlatetof(Elf_Data *_dst, const Elf_Data *_src,
unsigned int _enc);
Elf_Data *elf64_xlatetom(Elf_Data *_dst, const Elf_Data *_src,
unsigned int _enc);
#endif /* _LIBELF_H_ */

137
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <sys/types.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_align.c 2225 2011-11-26 18:55:54Z jkoshy $");
struct align {
int a32;
int a64;
};
#ifdef __GNUC__
#define MALIGN(N) { \
.a32 = __alignof__(Elf32_##N), \
.a64 = __alignof__(Elf64_##N) \
}
#define MALIGN64(V) { \
.a32 = 0, \
.a64 = __alignof__(Elf64_##V) \
}
#define MALIGN_WORD() { \
.a32 = __alignof__(int32_t), \
.a64 = __alignof__(int64_t) \
}
#else
#error Need the __alignof__ builtin.
#endif
#define UNSUPPORTED() { \
.a32 = 0, \
.a64 = 0 \
}
static struct align malign[ELF_T_NUM] = {
[ELF_T_ADDR] = MALIGN(Addr),
[ELF_T_BYTE] = { .a32 = 1, .a64 = 1 },
[ELF_T_CAP] = MALIGN(Cap),
[ELF_T_DYN] = MALIGN(Dyn),
[ELF_T_EHDR] = MALIGN(Ehdr),
[ELF_T_HALF] = MALIGN(Half),
[ELF_T_LWORD] = MALIGN(Lword),
[ELF_T_MOVE] = MALIGN(Move),
[ELF_T_MOVEP] = UNSUPPORTED(),
[ELF_T_NOTE] = MALIGN(Nhdr),
[ELF_T_OFF] = MALIGN(Off),
[ELF_T_PHDR] = MALIGN(Phdr),
[ELF_T_REL] = MALIGN(Rel),
[ELF_T_RELA] = MALIGN(Rela),
[ELF_T_SHDR] = MALIGN(Shdr),
[ELF_T_SWORD] = MALIGN(Sword),
[ELF_T_SXWORD] = MALIGN64(Sxword),
[ELF_T_SYM] = MALIGN(Sym),
[ELF_T_SYMINFO] = MALIGN(Syminfo),
[ELF_T_VDEF] = MALIGN(Verdef),
[ELF_T_VNEED] = MALIGN(Verneed),
[ELF_T_WORD] = MALIGN(Word),
[ELF_T_XWORD] = MALIGN64(Xword),
[ELF_T_GNUHASH] = MALIGN_WORD()
};
int
_libelf_malign(Elf_Type t, int elfclass)
{
if (t >= ELF_T_NUM || (int) t < 0)
return (0);
return (elfclass == ELFCLASS32 ? malign[t].a32 :
malign[t].a64);
}
#define FALIGN(A32,A64) { .a32 = (A32), .a64 = (A64) }
static struct align falign[ELF_T_NUM] = {
[ELF_T_ADDR] = FALIGN(4,8),
[ELF_T_BYTE] = FALIGN(1,1),
[ELF_T_CAP] = FALIGN(4,8),
[ELF_T_DYN] = FALIGN(4,8),
[ELF_T_EHDR] = FALIGN(4,8),
[ELF_T_HALF] = FALIGN(2,2),
[ELF_T_LWORD] = FALIGN(8,8),
[ELF_T_MOVE] = FALIGN(8,8),
[ELF_T_MOVEP] = UNSUPPORTED(),
[ELF_T_NOTE] = FALIGN(4,4),
[ELF_T_OFF] = FALIGN(4,8),
[ELF_T_PHDR] = FALIGN(4,8),
[ELF_T_REL] = FALIGN(4,8),
[ELF_T_RELA] = FALIGN(4,8),
[ELF_T_SHDR] = FALIGN(4,8),
[ELF_T_SWORD] = FALIGN(4,4),
[ELF_T_SXWORD] = FALIGN(0,8),
[ELF_T_SYM] = FALIGN(4,8),
[ELF_T_SYMINFO] = FALIGN(2,2),
[ELF_T_VDEF] = FALIGN(4,4),
[ELF_T_VNEED] = FALIGN(4,4),
[ELF_T_WORD] = FALIGN(4,4),
[ELF_T_XWORD] = FALIGN(0,8),
[ELF_T_GNUHASH] = FALIGN(4,8)
};
int
_libelf_falign(Elf_Type t, int elfclass)
{
if (t >= ELF_T_NUM || (int) t < 0)
return (0);
return (elfclass == ELFCLASS32 ? falign[t].a32 :
falign[t].a64);
}

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/*-
* Copyright (c) 2006,2008,2010 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Internal APIs
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <errno.h>
#include <libelf.h>
#include <stdlib.h>
#include <string.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_allocate.c 2272 2011-12-03 17:07:31Z jkoshy $");
Elf *
_libelf_allocate_elf(void)
{
Elf *e;
if ((e = malloc(sizeof(*e))) == NULL) {
LIBELF_SET_ERROR(RESOURCE, errno);
return NULL;
}
e->e_activations = 1;
e->e_hdr.e_rawhdr = NULL;
e->e_byteorder = ELFDATANONE;
e->e_class = ELFCLASSNONE;
e->e_cmd = ELF_C_NULL;
e->e_fd = -1;
e->e_flags = 0;
e->e_kind = ELF_K_NONE;
e->e_parent = NULL;
e->e_rawfile = NULL;
e->e_rawsize = 0;
e->e_version = LIBELF_PRIVATE(version);
(void) memset(&e->e_u, 0, sizeof(e->e_u));
return (e);
}
void
_libelf_init_elf(Elf *e, Elf_Kind kind)
{
assert(e != NULL);
assert(e->e_kind == ELF_K_NONE);
e->e_kind = kind;
switch (kind) {
case ELF_K_ELF:
STAILQ_INIT(&e->e_u.e_elf.e_scn);
break;
default:
break;
}
}
#define FREE(P) do { \
if (P) \
free(P); \
} while (0)
Elf *
_libelf_release_elf(Elf *e)
{
Elf_Arhdr *arh;
switch (e->e_kind) {
case ELF_K_AR:
FREE(e->e_u.e_ar.e_symtab);
break;
case ELF_K_ELF:
switch (e->e_class) {
case ELFCLASS32:
FREE(e->e_u.e_elf.e_ehdr.e_ehdr32);
FREE(e->e_u.e_elf.e_phdr.e_phdr32);
break;
case ELFCLASS64:
FREE(e->e_u.e_elf.e_ehdr.e_ehdr64);
FREE(e->e_u.e_elf.e_phdr.e_phdr64);
break;
}
assert(STAILQ_EMPTY(&e->e_u.e_elf.e_scn));
if (e->e_flags & LIBELF_F_AR_HEADER) {
arh = e->e_hdr.e_arhdr;
FREE(arh->ar_name);
FREE(arh->ar_rawname);
free(arh);
}
break;
default:
break;
}
free(e);
return (NULL);
}
struct _Libelf_Data *
_libelf_allocate_data(Elf_Scn *s)
{
struct _Libelf_Data *d;
if ((d = calloc((size_t) 1, sizeof(*d))) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
d->d_scn = s;
return (d);
}
struct _Libelf_Data *
_libelf_release_data(struct _Libelf_Data *d)
{
if (d->d_flags & LIBELF_F_DATA_MALLOCED)
free(d->d_data.d_buf);
free(d);
return (NULL);
}
Elf_Scn *
_libelf_allocate_scn(Elf *e, size_t ndx)
{
Elf_Scn *s;
if ((s = calloc((size_t) 1, sizeof(Elf_Scn))) == NULL) {
LIBELF_SET_ERROR(RESOURCE, errno);
return (NULL);
}
s->s_elf = e;
s->s_ndx = ndx;
STAILQ_INIT(&s->s_data);
STAILQ_INIT(&s->s_rawdata);
STAILQ_INSERT_TAIL(&e->e_u.e_elf.e_scn, s, s_next);
return (s);
}
Elf_Scn *
_libelf_release_scn(Elf_Scn *s)
{
Elf *e;
struct _Libelf_Data *d, *td;
assert(s != NULL);
STAILQ_FOREACH_SAFE(d, &s->s_data, d_next, td) {
STAILQ_REMOVE(&s->s_data, d, _Libelf_Data, d_next);
d = _libelf_release_data(d);
}
STAILQ_FOREACH_SAFE(d, &s->s_rawdata, d_next, td) {
assert((d->d_flags & LIBELF_F_DATA_MALLOCED) == 0);
STAILQ_REMOVE(&s->s_rawdata, d, _Libelf_Data, d_next);
d = _libelf_release_data(d);
}
e = s->s_elf;
assert(e != NULL);
STAILQ_REMOVE(&e->e_u.e_elf.e_scn, s, _Elf_Scn, s_next);
free(s);
return (NULL);
}

461
src/libelf/libelf_ar.c Normal file
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/*-
* Copyright (c) 2006,2008,2010 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <ctype.h>
#include <libelf.h>
#include <stdlib.h>
#include <string.h>
#include "_libelf.h"
#include "_libelf_ar.h"
ELFTC_VCSID("$Id: libelf_ar.c 2225 2011-11-26 18:55:54Z jkoshy $");
#define LIBELF_NALLOC_SIZE 16
/*
* `ar' archive handling.
*
* `ar' archives start with signature `ARMAG'. Each archive member is
* preceded by a header containing meta-data for the member. This
* header is described in <ar.h> (struct ar_hdr). The header always
* starts on an even address. File data is padded with "\n"
* characters to keep this invariant.
*
* Special considerations for `ar' archives:
*
* There are two variants of the `ar' archive format: traditional BSD
* and SVR4. These differ in the way long file names are treated, and
* in the layout of the archive symbol table.
*
* The `ar' header only has space for a 16 character file name.
*
* In the SVR4 format, file names are terminated with a '/', so this
* effectively leaves 15 characters for the actual file name. Longer
* file names stored in a separate 'string table' and referenced
* indirectly from the name field. The string table itself appears as
* an archive member with name "// ". An `indirect' file name in an
* `ar' header matches the pattern "/[0-9]*". The digits form a
* decimal number that corresponds to a byte offset into the string
* table where the actual file name of the object starts. Strings in
* the string table are padded to start on even addresses.
*
* In the BSD format, file names can be upto 16 characters. File
* names shorter than 16 characters are padded to 16 characters using
* (ASCII) space characters. File names with embedded spaces and file
* names longer than 16 characters are stored immediately after the
* archive header and the name field set to a special indirect name
* matching the pattern "#1/[0-9]+". The digits form a decimal number
* that corresponds to the actual length of the file name following
* the archive header. The content of the archive member immediately
* follows the file name, and the size field of the archive member
* holds the sum of the sizes of the member and of the appended file
* name.
*
* Archives may also have a symbol table (see ranlib(1)), mapping
* program symbols to object files inside the archive.
*
* In the SVR4 format, a symbol table uses a file name of "/ " in its
* archive header. The symbol table is structured as:
* - a 4-byte count of entries stored as a binary value, MSB first
* - 'n' 4-byte offsets, stored as binary values, MSB first
* - 'n' NUL-terminated strings, for ELF symbol names, stored unpadded.
*
* In the BSD format, the symbol table uses a file name of "__.SYMDEF".
* It is structured as two parts:
* - The first part is an array of "ranlib" structures preceded by
* the size of the array in bytes. Each "ranlib" structure
* describes one symbol. Each structure contains an offset into
* the string table for the symbol name, and a file offset into the
* archive for the member defining the symbol.
* - The second part is a string table containing NUL-terminated
* strings, preceded by the size of the string table in bytes.
*
* If the symbol table and string table are is present in an archive
* they must be the very first objects and in that order.
*/
/*
* Retrieve an archive header descriptor.
*/
Elf_Arhdr *
_libelf_ar_gethdr(Elf *e)
{
Elf *parent;
char *namelen;
Elf_Arhdr *eh;
size_t n, nlen;
struct ar_hdr *arh;
if ((parent = e->e_parent) == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
assert((e->e_flags & LIBELF_F_AR_HEADER) == 0);
arh = (struct ar_hdr *) (uintptr_t) e->e_hdr.e_rawhdr;
assert((uintptr_t) arh >= (uintptr_t) parent->e_rawfile + SARMAG);
assert((uintptr_t) arh <= (uintptr_t) parent->e_rawfile +
parent->e_rawsize - sizeof(struct ar_hdr));
if ((eh = malloc(sizeof(Elf_Arhdr))) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
e->e_hdr.e_arhdr = eh;
e->e_flags |= LIBELF_F_AR_HEADER;
eh->ar_name = eh->ar_rawname = NULL;
if ((eh->ar_name = _libelf_ar_get_translated_name(arh, parent)) ==
NULL)
goto error;
if (_libelf_ar_get_number(arh->ar_uid, sizeof(arh->ar_uid), 10,
&n) == 0)
goto error;
eh->ar_uid = (uid_t) n;
if (_libelf_ar_get_number(arh->ar_gid, sizeof(arh->ar_gid), 10,
&n) == 0)
goto error;
eh->ar_gid = (gid_t) n;
if (_libelf_ar_get_number(arh->ar_mode, sizeof(arh->ar_mode), 8,
&n) == 0)
goto error;
eh->ar_mode = (mode_t) n;
if (_libelf_ar_get_number(arh->ar_size, sizeof(arh->ar_size), 10,
&n) == 0)
goto error;
/*
* Get the true size of the member if extended naming is being used.
*/
if (IS_EXTENDED_BSD_NAME(arh->ar_name)) {
namelen = arh->ar_name +
LIBELF_AR_BSD_EXTENDED_NAME_PREFIX_SIZE;
if (_libelf_ar_get_number(namelen, sizeof(arh->ar_name) -
LIBELF_AR_BSD_EXTENDED_NAME_PREFIX_SIZE, 10, &nlen) == 0)
goto error;
n -= nlen;
}
eh->ar_size = n;
if ((eh->ar_rawname = _libelf_ar_get_raw_name(arh)) == NULL)
goto error;
eh->ar_flags = 0;
return (eh);
error:
if (eh) {
if (eh->ar_name)
free(eh->ar_name);
if (eh->ar_rawname)
free(eh->ar_rawname);
free(eh);
}
e->e_flags &= ~LIBELF_F_AR_HEADER;
e->e_hdr.e_rawhdr = (char *) arh;
return (NULL);
}
Elf *
_libelf_ar_open_member(int fd, Elf_Cmd c, Elf *elf)
{
Elf *e;
char *member, *namelen;
size_t nsz, sz;
off_t next;
struct ar_hdr *arh;
assert(elf->e_kind == ELF_K_AR);
next = elf->e_u.e_ar.e_next;
/*
* `next' is only set to zero by elf_next() when the last
* member of an archive is processed.
*/
if (next == (off_t) 0)
return (NULL);
assert((next & 1) == 0);
arh = (struct ar_hdr *) (elf->e_rawfile + next);
/*
* Retrieve the size of the member.
*/
if (_libelf_ar_get_number(arh->ar_size, sizeof(arh->ar_size), 10,
&sz) == 0) {
LIBELF_SET_ERROR(ARCHIVE, 0);
return (NULL);
}
/*
* Adjust the size field for members in BSD archives using
* extended naming.
*/
if (IS_EXTENDED_BSD_NAME(arh->ar_name)) {
namelen = arh->ar_name +
LIBELF_AR_BSD_EXTENDED_NAME_PREFIX_SIZE;
if (_libelf_ar_get_number(namelen, sizeof(arh->ar_name) -
LIBELF_AR_BSD_EXTENDED_NAME_PREFIX_SIZE, 10, &nsz) == 0) {
LIBELF_SET_ERROR(ARCHIVE, 0);
return (NULL);
}
member = (char *) (arh + 1) + nsz;
sz -= nsz;
} else
member = (char *) (arh + 1);
if ((e = elf_memory((char *) member, sz)) == NULL)
return (NULL);
e->e_fd = fd;
e->e_cmd = c;
e->e_hdr.e_rawhdr = (char *) arh;
elf->e_u.e_ar.e_nchildren++;
e->e_parent = elf;
return (e);
}
/*
* A BSD-style ar(1) symbol table has the following layout:
*
* - A count of bytes used by the following array of 'ranlib'
* structures, stored as a 'long'.
* - An array of 'ranlib' structures. Each array element is
* two 'long's in size.
* - A count of bytes used for the following symbol table.
* - The symbol table itself.
*/
/*
* A helper macro to read in a 'long' value from the archive. We use
* memcpy() since the source pointer may be misaligned with respect to
* the natural alignment for a C 'long'.
*/
#define GET_LONG(P, V)do { \
memcpy(&(V), (P), sizeof(long)); \
(P) += sizeof(long); \
} while (0)
Elf_Arsym *
_libelf_ar_process_bsd_symtab(Elf *e, size_t *count)
{
Elf_Arsym *symtab, *sym;
unsigned char *end, *p, *p0, *s, *s0;
const unsigned int entrysize = 2 * sizeof(long);
long arraysize, fileoffset, n, nentries, stroffset, strtabsize;
assert(e != NULL);
assert(count != NULL);
assert(e->e_u.e_ar.e_symtab == NULL);
symtab = NULL;
/*
* The BSD symbol table always contains the count fields even
* if there are no entries in it.
*/
if (e->e_u.e_ar.e_rawsymtabsz < 2 * sizeof(long))
goto symtaberror;
p = p0 = (unsigned char *) e->e_u.e_ar.e_rawsymtab;
end = p0 + e->e_u.e_ar.e_rawsymtabsz;
/*
* Retrieve the size of the array of ranlib descriptors and
* check it for validity.
*/
GET_LONG(p, arraysize);
if (p0 + arraysize >= end || (arraysize % entrysize != 0))
goto symtaberror;
/*
* Check the value of the string table size.
*/
s = p + arraysize;
GET_LONG(s, strtabsize);
s0 = s; /* Start of string table. */
if (s0 + strtabsize > end)
goto symtaberror;
nentries = arraysize / entrysize;
/*
* Allocate space for the returned Elf_Arsym array.
*/
if ((symtab = malloc(sizeof(Elf_Arsym) * (nentries + 1))) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
/* Read in symbol table entries. */
for (n = 0, sym = symtab; n < nentries; n++, sym++) {
GET_LONG(p, stroffset);
GET_LONG(p, fileoffset);
s = s0 + stroffset;
if (s >= end)
goto symtaberror;
sym->as_off = fileoffset;
sym->as_hash = elf_hash((char *) s);
sym->as_name = (char *) s;
}
/* Fill up the sentinel entry. */
sym->as_name = NULL;
sym->as_hash = ~0UL;
sym->as_off = (off_t) 0;
/* Remember the processed symbol table. */
e->e_u.e_ar.e_symtab = symtab;
*count = e->e_u.e_ar.e_symtabsz = nentries + 1;
return (symtab);
symtaberror:
if (symtab)
free(symtab);
LIBELF_SET_ERROR(ARCHIVE, 0);
return (NULL);
}
/*
* An SVR4-style ar(1) symbol table has the following layout:
*
* - The first 4 bytes are a binary count of the number of entries in the
* symbol table, stored MSB-first.
* - Then there are 'n' 4-byte binary offsets, also stored MSB first.
* - Following this, there are 'n' null-terminated strings.
*/
#define GET_WORD(P, V) do { \
(V) = 0; \
(V) = (P)[0]; (V) <<= 8; \
(V) += (P)[1]; (V) <<= 8; \
(V) += (P)[2]; (V) <<= 8; \
(V) += (P)[3]; \
} while (0)
#define INTSZ 4
Elf_Arsym *
_libelf_ar_process_svr4_symtab(Elf *e, size_t *count)
{
size_t n, nentries, off;
Elf_Arsym *symtab, *sym;
unsigned char *p, *s, *end;
assert(e != NULL);
assert(count != NULL);
assert(e->e_u.e_ar.e_symtab == NULL);
symtab = NULL;
if (e->e_u.e_ar.e_rawsymtabsz < INTSZ)
goto symtaberror;
p = (unsigned char *) e->e_u.e_ar.e_rawsymtab;
end = p + e->e_u.e_ar.e_rawsymtabsz;
GET_WORD(p, nentries);
p += INTSZ;
if (nentries == 0 || p + nentries * INTSZ >= end)
goto symtaberror;
/* Allocate space for a nentries + a sentinel. */
if ((symtab = malloc(sizeof(Elf_Arsym) * (nentries+1))) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
s = p + (nentries * INTSZ); /* start of the string table. */
for (n = nentries, sym = symtab; n > 0; n--) {
if (s >= end)
goto symtaberror;
off = 0;
GET_WORD(p, off);
sym->as_off = off;
sym->as_hash = elf_hash((char *) s);
sym->as_name = (char *) s;
p += INTSZ;
sym++;
for (; s < end && *s++ != '\0';) /* skip to next string */
;
}
/* Fill up the sentinel entry. */
sym->as_name = NULL;
sym->as_hash = ~0UL;
sym->as_off = (off_t) 0;
*count = e->e_u.e_ar.e_symtabsz = nentries + 1;
e->e_u.e_ar.e_symtab = symtab;
return (symtab);
symtaberror:
if (symtab)
free(symtab);
LIBELF_SET_ERROR(ARCHIVE, 0);
return (NULL);
}

359
src/libelf/libelf_ar_util.c Normal file
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@ -0,0 +1,359 @@
/*-
* Copyright (c) 2006,2009,2010 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <libelf.h>
#include <stdlib.h>
#include <string.h>
#include "_libelf.h"
#include "_libelf_ar.h"
ELFTC_VCSID("$Id: libelf_ar_util.c 2365 2011-12-29 04:36:44Z jkoshy $");
/*
* Convert a string bounded by `start' and `start+sz' (exclusive) to a
* number in the specified base.
*/
int
_libelf_ar_get_number(const char *s, size_t sz, int base, size_t *ret)
{
int c, v;
size_t r;
const char *e;
assert(base <= 10);
e = s + sz;
/* skip leading blanks */
for (;s < e && (c = *s) == ' '; s++)
;
r = 0L;
for (;s < e; s++) {
if ((c = *s) == ' ')
break;
if (c < '0' || c > '9')
return (0);
v = c - '0';
if (v >= base) /* Illegal digit. */
break;
r *= base;
r += v;
}
*ret = r;
return (1);
}
/*
* Return the translated name for an archive member.
*/
char *
_libelf_ar_get_translated_name(const struct ar_hdr *arh, Elf *ar)
{
char c, *s;
size_t len, offset;
const char *buf, *p, *q, *r;
const size_t bufsize = sizeof(arh->ar_name);
assert(arh != NULL);
assert(ar->e_kind == ELF_K_AR);
assert((const char *) arh >= ar->e_rawfile &&
(const char *) arh < ar->e_rawfile + ar->e_rawsize);
buf = arh->ar_name;
/*
* Check for extended naming.
*
* If the name matches the pattern "^/[0-9]+", it is an
* SVR4-style extended name. If the name matches the pattern
* "#1/[0-9]+", the entry uses BSD style extended naming.
*/
if (buf[0] == '/' && (c = buf[1]) >= '0' && c <= '9') {
/*
* The value in field ar_name is a decimal offset into
* the archive string table where the actual name
* resides.
*/
if (_libelf_ar_get_number(buf + 1, bufsize - 1, 10,
&offset) == 0) {
LIBELF_SET_ERROR(ARCHIVE, 0);
return (NULL);
}
if (offset > ar->e_u.e_ar.e_rawstrtabsz) {
LIBELF_SET_ERROR(ARCHIVE, 0);
return (NULL);
}
p = q = ar->e_u.e_ar.e_rawstrtab + offset;
r = ar->e_u.e_ar.e_rawstrtab + ar->e_u.e_ar.e_rawstrtabsz;
for (; p < r && *p != '/'; p++)
;
len = p - q + 1; /* space for the trailing NUL */
if ((s = malloc(len)) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
(void) strncpy(s, q, len - 1);
s[len - 1] = '\0';
return (s);
} else if (IS_EXTENDED_BSD_NAME(buf)) {
r = buf + LIBELF_AR_BSD_EXTENDED_NAME_PREFIX_SIZE;
if (_libelf_ar_get_number(r, bufsize -
LIBELF_AR_BSD_EXTENDED_NAME_PREFIX_SIZE, 10,
&len) == 0) {
LIBELF_SET_ERROR(ARCHIVE, 0);
return (NULL);
}
/*
* Allocate space for the file name plus a
* trailing NUL.
*/
if ((s = malloc(len + 1)) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
/*
* The file name follows the archive header.
*/
q = (const char *) (arh + 1);
(void) strncpy(s, q, len);
s[len] = '\0';
return (s);
}
/*
* A 'normal' name.
*
* Skip back over trailing blanks from the end of the field.
* In the SVR4 format, a '/' is used as a terminator for
* non-special names.
*/
for (q = buf + bufsize - 1; q >= buf && *q == ' '; --q)
;
if (q >= buf) {
if (*q == '/') {
/*
* SVR4 style names: ignore the trailing
* character '/', but only if the name is not
* one of the special names "/" and "//".
*/
if (q > buf + 1 ||
(q == (buf + 1) && *buf != '/'))
q--;
}
len = q - buf + 2; /* Add space for a trailing NUL. */
} else {
/* The buffer only had blanks. */
buf = "";
len = 1;
}
if ((s = malloc(len)) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
(void) strncpy(s, buf, len - 1);
s[len - 1] = '\0';
return (s);
}
/*
* Return the raw name for an archive member, inclusive of any
* formatting characters.
*/
char *
_libelf_ar_get_raw_name(const struct ar_hdr *arh)
{
char *rawname;
const size_t namesz = sizeof(arh->ar_name);
if ((rawname = malloc(namesz + 1)) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
(void) strncpy(rawname, arh->ar_name, namesz);
rawname[namesz] = '\0';
return (rawname);
}
/*
* Open an 'ar' archive.
*/
Elf *
_libelf_ar_open(Elf *e, int reporterror)
{
size_t sz;
int scanahead;
char *s, *end;
struct ar_hdr arh;
_libelf_init_elf(e, ELF_K_AR);
e->e_u.e_ar.e_nchildren = 0;
e->e_u.e_ar.e_next = (off_t) -1;
/*
* Look for special members.
*/
s = e->e_rawfile + SARMAG;
end = e->e_rawfile + e->e_rawsize;
assert(e->e_rawsize > 0);
/*
* We use heuristics to determine the flavor of the archive we
* are examining.
*
* SVR4 flavor archives use the name "/ " and "// " for
* special members.
*
* In BSD flavor archives the symbol table, if present, is the
* first archive with name "__.SYMDEF".
*/
#define READ_AR_HEADER(S, ARH, SZ, END) \
do { \
if ((S) + sizeof((ARH)) > (END)) \
goto error; \
(void) memcpy(&(ARH), (S), sizeof((ARH))); \
if ((ARH).ar_fmag[0] != '`' || (ARH).ar_fmag[1] != '\n') \
goto error; \
if (_libelf_ar_get_number((ARH).ar_size, \
sizeof((ARH).ar_size), 10, &(SZ)) == 0) \
goto error; \
} while (0)
READ_AR_HEADER(s, arh, sz, end);
/*
* Handle special archive members for the SVR4 format.
*/
if (arh.ar_name[0] == '/') {
assert(sz > 0);
e->e_flags |= LIBELF_F_AR_VARIANT_SVR4;
scanahead = 0;
/*
* The symbol table (file name "/ ") always comes before the
* string table (file name "// ").
*/
if (arh.ar_name[1] == ' ') {
/* "/ " => symbol table. */
scanahead = 1; /* The string table to follow. */
s += sizeof(arh);
e->e_u.e_ar.e_rawsymtab = s;
e->e_u.e_ar.e_rawsymtabsz = sz;
sz = LIBELF_ADJUST_AR_SIZE(sz);
s += sz;
} else if (arh.ar_name[1] == '/' && arh.ar_name[2] == ' ') {
/* "// " => string table for long file names. */
s += sizeof(arh);
e->e_u.e_ar.e_rawstrtab = s;
e->e_u.e_ar.e_rawstrtabsz = sz;
sz = LIBELF_ADJUST_AR_SIZE(sz);
s += sz;
}
/*
* If the string table hasn't been seen yet, look for
* it in the next member.
*/
if (scanahead) {
READ_AR_HEADER(s, arh, sz, end);
/* "// " => string table for long file names. */
if (arh.ar_name[0] == '/' && arh.ar_name[1] == '/' &&
arh.ar_name[2] == ' ') {
s += sizeof(arh);
e->e_u.e_ar.e_rawstrtab = s;
e->e_u.e_ar.e_rawstrtabsz = sz;
sz = LIBELF_ADJUST_AR_SIZE(sz);
s += sz;
}
}
} else if (strncmp(arh.ar_name, LIBELF_AR_BSD_SYMTAB_NAME,
sizeof(LIBELF_AR_BSD_SYMTAB_NAME) - 1) == 0) {
/*
* BSD style archive symbol table.
*/
s += sizeof(arh);
e->e_u.e_ar.e_rawsymtab = s;
e->e_u.e_ar.e_rawsymtabsz = sz;
sz = LIBELF_ADJUST_AR_SIZE(sz);
s += sz;
}
/*
* Update the 'next' offset, so that a subsequent elf_begin()
* works as expected.
*/
e->e_u.e_ar.e_next = (off_t) (s - e->e_rawfile);
return (e);
error:
if (!reporterror) {
e->e_kind = ELF_K_NONE;
return (e);
}
LIBELF_SET_ERROR(ARCHIVE, 0);
return (NULL);
}

View File

@ -0,0 +1,100 @@
/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <gelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_checksum.c 2225 2011-11-26 18:55:54Z jkoshy $");
static unsigned long
_libelf_sum(unsigned long c, const unsigned char *s, size_t size)
{
if (s == NULL || size == 0)
return (c);
while (size--)
c += *s++;
return (c);
}
unsigned long
_libelf_checksum(Elf *e, int elfclass)
{
size_t shn;
Elf_Scn *scn;
Elf_Data *d;
unsigned long checksum;
GElf_Ehdr eh;
GElf_Shdr shdr;
if (e == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (0L);
}
if (e->e_class != elfclass) {
LIBELF_SET_ERROR(CLASS, 0);
return (0L);
}
if (gelf_getehdr(e, &eh) == NULL)
return (0);
/*
* Iterate over all sections in the ELF file, computing the
* checksum along the way.
*
* The first section is always SHN_UNDEF and can be skipped.
* Non-allocatable sections are skipped, as are sections that
* could be affected by utilities such as strip(1).
*/
checksum = 0;
for (shn = 1; shn < e->e_u.e_elf.e_nscn; shn++) {
if ((scn = elf_getscn(e, shn)) == NULL)
return (0);
if (gelf_getshdr(scn, &shdr) == NULL)
return (0);
if ((shdr.sh_flags & SHF_ALLOC) == 0 ||
shdr.sh_type == SHT_DYNAMIC ||
shdr.sh_type == SHT_DYNSYM)
continue;
d = NULL;
while ((d = elf_rawdata(scn, d)) != NULL)
checksum = _libelf_sum(checksum,
(unsigned char *) d->d_buf, d->d_size);
}
/*
* Return a 16-bit checksum compatible with Solaris.
*/
return (((checksum >> 16) & 0xFFFFUL) + (checksum & 0xFFFFUL));
}

3465
src/libelf/libelf_convert.c Normal file

File diff suppressed because it is too large Load Diff

88
src/libelf/libelf_data.c Normal file
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_data.c 2225 2011-11-26 18:55:54Z jkoshy $");
int
_libelf_xlate_shtype(uint32_t sht)
{
switch (sht) {
case SHT_DYNAMIC:
return (ELF_T_DYN);
case SHT_DYNSYM:
return (ELF_T_SYM);
case SHT_FINI_ARRAY:
return (ELF_T_ADDR);
case SHT_GNU_HASH:
return (ELF_T_GNUHASH);
case SHT_GNU_LIBLIST:
return (ELF_T_WORD);
case SHT_GROUP:
return (ELF_T_WORD);
case SHT_HASH:
return (ELF_T_WORD);
case SHT_INIT_ARRAY:
return (ELF_T_ADDR);
case SHT_NOBITS:
return (ELF_T_BYTE);
case SHT_NOTE:
return (ELF_T_NOTE);
case SHT_PREINIT_ARRAY:
return (ELF_T_ADDR);
case SHT_PROGBITS:
return (ELF_T_BYTE);
case SHT_REL:
return (ELF_T_REL);
case SHT_RELA:
return (ELF_T_RELA);
case SHT_STRTAB:
return (ELF_T_BYTE);
case SHT_SYMTAB:
return (ELF_T_SYM);
case SHT_SYMTAB_SHNDX:
return (ELF_T_WORD);
case SHT_SUNW_dof:
return (ELF_T_BYTE);
case SHT_SUNW_move:
return (ELF_T_MOVE);
case SHT_SUNW_syminfo:
return (ELF_T_SYMINFO);
case SHT_SUNW_verdef: /* == SHT_GNU_verdef */
return (ELF_T_VDEF);
case SHT_SUNW_verneed: /* == SHT_GNU_verneed */
return (ELF_T_VNEED);
case SHT_SUNW_versym: /* == SHT_GNU_versym */
return (ELF_T_HALF);
default:
return (-1);
}
}

204
src/libelf/libelf_ehdr.c Normal file
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <gelf.h>
#include <libelf.h>
#include <stdlib.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_ehdr.c 2225 2011-11-26 18:55:54Z jkoshy $");
/*
* Retrieve counts for sections, phdrs and the section string table index
* from section header #0 of the ELF object.
*/
static int
_libelf_load_extended(Elf *e, int ec, uint64_t shoff, uint16_t phnum,
uint16_t strndx)
{
Elf_Scn *scn;
size_t fsz;
int (*xlator)(char *_d, size_t _dsz, char *_s, size_t _c, int _swap);
uint32_t shtype;
assert(STAILQ_EMPTY(&e->e_u.e_elf.e_scn));
fsz = _libelf_fsize(ELF_T_SHDR, ec, e->e_version, 1);
assert(fsz > 0);
if (e->e_rawsize < shoff + fsz) { /* raw file too small */
LIBELF_SET_ERROR(HEADER, 0);
return (0);
}
if ((scn = _libelf_allocate_scn(e, (size_t) 0)) == NULL)
return (0);
xlator = _libelf_get_translator(ELF_T_SHDR, ELF_TOMEMORY, ec);
(*xlator)((char *) &scn->s_shdr, sizeof(scn->s_shdr),
e->e_rawfile + shoff, (size_t) 1,
e->e_byteorder != LIBELF_PRIVATE(byteorder));
#define GET_SHDR_MEMBER(M) ((ec == ELFCLASS32) ? scn->s_shdr.s_shdr32.M : \
scn->s_shdr.s_shdr64.M)
if ((shtype = GET_SHDR_MEMBER(sh_type)) != SHT_NULL) {
LIBELF_SET_ERROR(SECTION, 0);
return (0);
}
e->e_u.e_elf.e_nscn = GET_SHDR_MEMBER(sh_size);
e->e_u.e_elf.e_nphdr = (phnum != PN_XNUM) ? phnum :
GET_SHDR_MEMBER(sh_info);
e->e_u.e_elf.e_strndx = (strndx != SHN_XINDEX) ? strndx :
GET_SHDR_MEMBER(sh_link);
#undef GET_SHDR_MEMBER
return (1);
}
#define EHDR_INIT(E,SZ) do { \
Elf##SZ##_Ehdr *eh = (E); \
eh->e_ident[EI_MAG0] = ELFMAG0; \
eh->e_ident[EI_MAG1] = ELFMAG1; \
eh->e_ident[EI_MAG2] = ELFMAG2; \
eh->e_ident[EI_MAG3] = ELFMAG3; \
eh->e_ident[EI_CLASS] = ELFCLASS##SZ; \
eh->e_ident[EI_DATA] = ELFDATANONE; \
eh->e_ident[EI_VERSION] = LIBELF_PRIVATE(version); \
eh->e_machine = EM_NONE; \
eh->e_type = ELF_K_NONE; \
eh->e_version = LIBELF_PRIVATE(version); \
} while (0)
void *
_libelf_ehdr(Elf *e, int ec, int allocate)
{
void *ehdr;
size_t fsz, msz;
uint16_t phnum, shnum, strndx;
uint64_t shoff;
int (*xlator)(char *_d, size_t _dsz, char *_s, size_t _c, int _swap);
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (e == NULL || e->e_kind != ELF_K_ELF) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if (e->e_class != ELFCLASSNONE && e->e_class != ec) {
LIBELF_SET_ERROR(CLASS, 0);
return (NULL);
}
if (e->e_version != EV_CURRENT) {
LIBELF_SET_ERROR(VERSION, 0);
return (NULL);
}
if (e->e_class == ELFCLASSNONE)
e->e_class = ec;
if (ec == ELFCLASS32)
ehdr = (void *) e->e_u.e_elf.e_ehdr.e_ehdr32;
else
ehdr = (void *) e->e_u.e_elf.e_ehdr.e_ehdr64;
if (ehdr != NULL) /* already have a translated ehdr */
return (ehdr);
fsz = _libelf_fsize(ELF_T_EHDR, ec, e->e_version, (size_t) 1);
assert(fsz > 0);
if (e->e_cmd != ELF_C_WRITE && e->e_rawsize < fsz) {
LIBELF_SET_ERROR(HEADER, 0);
return (NULL);
}
msz = _libelf_msize(ELF_T_EHDR, ec, EV_CURRENT);
assert(msz > 0);
if ((ehdr = calloc((size_t) 1, msz)) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
if (ec == ELFCLASS32) {
e->e_u.e_elf.e_ehdr.e_ehdr32 = ehdr;
EHDR_INIT(ehdr,32);
} else {
e->e_u.e_elf.e_ehdr.e_ehdr64 = ehdr;
EHDR_INIT(ehdr,64);
}
if (allocate)
e->e_flags |= ELF_F_DIRTY;
if (e->e_cmd == ELF_C_WRITE)
return (ehdr);
xlator = _libelf_get_translator(ELF_T_EHDR, ELF_TOMEMORY, ec);
(*xlator)(ehdr, msz, e->e_rawfile, (size_t) 1,
e->e_byteorder != LIBELF_PRIVATE(byteorder));
/*
* If extended numbering is being used, read the correct
* number of sections and program header entries.
*/
if (ec == ELFCLASS32) {
phnum = ((Elf32_Ehdr *) ehdr)->e_phnum;
shnum = ((Elf32_Ehdr *) ehdr)->e_shnum;
shoff = ((Elf32_Ehdr *) ehdr)->e_shoff;
strndx = ((Elf32_Ehdr *) ehdr)->e_shstrndx;
} else {
phnum = ((Elf64_Ehdr *) ehdr)->e_phnum;
shnum = ((Elf64_Ehdr *) ehdr)->e_shnum;
shoff = ((Elf64_Ehdr *) ehdr)->e_shoff;
strndx = ((Elf64_Ehdr *) ehdr)->e_shstrndx;
}
if (shnum >= SHN_LORESERVE ||
(shoff == 0LL && (shnum != 0 || phnum == PN_XNUM ||
strndx == SHN_XINDEX))) {
LIBELF_SET_ERROR(HEADER, 0);
return (NULL);
}
if (shnum != 0 || shoff == 0LL) { /* not using extended numbering */
e->e_u.e_elf.e_nphdr = phnum;
e->e_u.e_elf.e_nscn = shnum;
e->e_u.e_elf.e_strndx = strndx;
} else if (_libelf_load_extended(e, ec, shoff, phnum, strndx) == 0)
return (NULL);
return (ehdr);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_extended.c 2225 2011-11-26 18:55:54Z jkoshy $");
/*
* Retrieve section #0, allocating a new section if needed.
*/
static Elf_Scn *
_libelf_getscn0(Elf *e)
{
Elf_Scn *s;
if ((s = STAILQ_FIRST(&e->e_u.e_elf.e_scn)) != NULL)
return (s);
return (_libelf_allocate_scn(e, (size_t) SHN_UNDEF));
}
int
_libelf_setshnum(Elf *e, void *eh, int ec, size_t shnum)
{
Elf_Scn *scn;
if (shnum >= SHN_LORESERVE) {
if ((scn = _libelf_getscn0(e)) == NULL)
return (0);
assert(scn->s_ndx == SHN_UNDEF);
if (ec == ELFCLASS32)
scn->s_shdr.s_shdr32.sh_size = shnum;
else
scn->s_shdr.s_shdr64.sh_size = shnum;
(void) elf_flagshdr(scn, ELF_C_SET, ELF_F_DIRTY);
shnum = 0;
}
if (ec == ELFCLASS32)
((Elf32_Ehdr *) eh)->e_shnum = shnum;
else
((Elf64_Ehdr *) eh)->e_shnum = shnum;
return (1);
}
int
_libelf_setshstrndx(Elf *e, void *eh, int ec, size_t shstrndx)
{
Elf_Scn *scn;
if (shstrndx >= SHN_LORESERVE) {
if ((scn = _libelf_getscn0(e)) == NULL)
return (0);
assert(scn->s_ndx == SHN_UNDEF);
if (ec == ELFCLASS32)
scn->s_shdr.s_shdr32.sh_link = shstrndx;
else
scn->s_shdr.s_shdr64.sh_link = shstrndx;
(void) elf_flagshdr(scn, ELF_C_SET, ELF_F_DIRTY);
shstrndx = SHN_XINDEX;
}
if (ec == ELFCLASS32)
((Elf32_Ehdr *) eh)->e_shstrndx = shstrndx;
else
((Elf64_Ehdr *) eh)->e_shstrndx = shstrndx;
return (1);
}
int
_libelf_setphnum(Elf *e, void *eh, int ec, size_t phnum)
{
Elf_Scn *scn;
if (phnum >= PN_XNUM) {
if ((scn = _libelf_getscn0(e)) == NULL)
return (0);
assert(scn->s_ndx == SHN_UNDEF);
if (ec == ELFCLASS32)
scn->s_shdr.s_shdr32.sh_info = phnum;
else
scn->s_shdr.s_shdr64.sh_info = phnum;
(void) elf_flagshdr(scn, ELF_C_SET, ELF_F_DIRTY);
phnum = PN_XNUM;
}
if (ec == ELFCLASS32)
((Elf32_Ehdr *) eh)->e_phnum = phnum;
else
((Elf64_Ehdr *) eh)->e_phnum = phnum;
return (1);
}

197
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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: elf_types.m4 321 2009-03-07 16:59:14Z jkoshy $
*/
/*
* ELF types, defined in the "enum Elf_Type" API.
*
* The members of the list form a 2-tuple: (name, C-type-suffix).
* + name is an Elf_Type symbol without the ELF_T_ prefix.
* + C-type-suffix is the suffix for Elf32_ and Elf64_ type names.
*/
/*
* DEFINE_STRUCT(NAME,MEMBERLIST...)
*
* Map a type name to its members.
*
* Each member-list element comprises of pairs of (field name, type),
* in the sequence used in the file representation of NAME.
*
* Each member list element comprises a pair containing a field name
* and a basic type. Basic types include IDENT, HALF, WORD, LWORD,
* ADDR{32,64}, OFF{32,64}, SWORD, XWORD, SXWORD.
*
* The last element of a member list is the null element: _,_.
*/
/*-
* Copyright (c) 2006,2008-2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_fsize.m4 2225 2011-11-26 18:55:54Z jkoshy $");
/* WARNING: GENERATED FROM libelf_fsize.m4. */
/*
* Create an array of file sizes from the elf_type definitions
*/
struct fsize {
size_t fsz32;
size_t fsz64;
};
static struct fsize fsize[ELF_T_NUM] = {
[ELF_T_ADDR] = { .fsz32 = sizeof(Elf32_Addr), .fsz64 = sizeof(Elf64_Addr) },
[ELF_T_BYTE] = { .fsz32 = 1, .fsz64 = 1 },
[ELF_T_CAP] = { .fsz32 = sizeof(Elf32_Word)+sizeof(Elf32_Word)+0, .fsz64 = sizeof(Elf64_Xword)+sizeof(Elf64_Xword)+0 },
[ELF_T_DYN] = { .fsz32 = sizeof(Elf32_Sword)+sizeof(Elf32_Word)+0, .fsz64 = sizeof(Elf64_Sxword)+sizeof(Elf64_Xword)+0 },
[ELF_T_EHDR] = { .fsz32 = EI_NIDENT+sizeof(Elf32_Half)+sizeof(Elf32_Half)+sizeof(Elf32_Word)+sizeof(Elf32_Addr)+sizeof(Elf32_Off)+sizeof(Elf32_Off)+sizeof(Elf32_Word)+sizeof(Elf32_Half)+sizeof(Elf32_Half)+sizeof(Elf32_Half)+sizeof(Elf32_Half)+sizeof(Elf32_Half)+sizeof(Elf32_Half)+0, .fsz64 = EI_NIDENT+sizeof(Elf64_Half)+sizeof(Elf64_Half)+sizeof(Elf64_Word)+sizeof(Elf64_Addr)+sizeof(Elf64_Off)+sizeof(Elf64_Off)+sizeof(Elf64_Word)+sizeof(Elf64_Half)+sizeof(Elf64_Half)+sizeof(Elf64_Half)+sizeof(Elf64_Half)+sizeof(Elf64_Half)+sizeof(Elf64_Half)+0 },
[ELF_T_GNUHASH] = { .fsz32 = 1, .fsz64 = 1 },
[ELF_T_HALF] = { .fsz32 = sizeof(Elf32_Half), .fsz64 = sizeof(Elf64_Half) },
[ELF_T_LWORD] = { .fsz32 = sizeof(Elf32_Lword), .fsz64 = sizeof(Elf64_Lword) },
[ELF_T_MOVE] = { .fsz32 = sizeof(Elf32_Lword)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+sizeof(Elf32_Half)+sizeof(Elf32_Half)+0, .fsz64 = sizeof(Elf64_Lword)+sizeof(Elf64_Xword)+sizeof(Elf64_Xword)+sizeof(Elf64_Half)+sizeof(Elf64_Half)+0 },
[ELF_T_MOVEP] = { .fsz32 = 0, .fsz64 = 0 },
[ELF_T_NOTE] = { .fsz32 = 1, .fsz64 = 1 },
[ELF_T_OFF] = { .fsz32 = sizeof(Elf32_Off), .fsz64 = sizeof(Elf64_Off) },
[ELF_T_PHDR] = { .fsz32 = sizeof(Elf32_Word)+sizeof(Elf32_Off)+sizeof(Elf32_Addr)+sizeof(Elf32_Addr)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+0, .fsz64 = sizeof(Elf64_Word)+sizeof(Elf64_Word)+sizeof(Elf64_Off)+sizeof(Elf64_Addr)+sizeof(Elf64_Addr)+sizeof(Elf64_Xword)+sizeof(Elf64_Xword)+sizeof(Elf64_Xword)+0 },
[ELF_T_REL] = { .fsz32 = sizeof(Elf32_Addr)+sizeof(Elf32_Word)+0, .fsz64 = sizeof(Elf64_Addr)+sizeof(Elf64_Xword)+0 },
[ELF_T_RELA] = { .fsz32 = sizeof(Elf32_Addr)+sizeof(Elf32_Word)+sizeof(Elf32_Sword)+0, .fsz64 = sizeof(Elf64_Addr)+sizeof(Elf64_Xword)+sizeof(Elf64_Sxword)+0 },
[ELF_T_SHDR] = { .fsz32 = sizeof(Elf32_Word)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+sizeof(Elf32_Addr)+sizeof(Elf32_Off)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+sizeof(Elf32_Word)+0, .fsz64 = sizeof(Elf64_Word)+sizeof(Elf64_Word)+sizeof(Elf64_Xword)+sizeof(Elf64_Addr)+sizeof(Elf64_Off)+sizeof(Elf64_Xword)+sizeof(Elf64_Word)+sizeof(Elf64_Word)+sizeof(Elf64_Xword)+sizeof(Elf64_Xword)+0 },
[ELF_T_SWORD] = { .fsz32 = sizeof(Elf32_Sword), .fsz64 = sizeof(Elf64_Sword) },
[ELF_T_SXWORD] = { .fsz32 = 0, .fsz64 = sizeof(Elf64_Sxword) },
[ELF_T_SYMINFO] = { .fsz32 = sizeof(Elf32_Half)+sizeof(Elf32_Half)+0, .fsz64 = sizeof(Elf64_Half)+sizeof(Elf64_Half)+0 },
[ELF_T_SYM] = { .fsz32 = sizeof(Elf32_Word)+sizeof(Elf32_Addr)+sizeof(Elf32_Word)+1+1+sizeof(Elf32_Half)+0, .fsz64 = sizeof(Elf64_Word)+1+1+sizeof(Elf64_Half)+sizeof(Elf64_Addr)+sizeof(Elf64_Xword)+0 },
[ELF_T_VDEF] = { .fsz32 = 1, .fsz64 = 1 },
[ELF_T_VNEED] = { .fsz32 = 1, .fsz64 = 1 },
[ELF_T_WORD] = { .fsz32 = sizeof(Elf32_Word), .fsz64 = sizeof(Elf64_Word) },
[ELF_T_XWORD] = { .fsz32 = 0, .fsz64 = sizeof(Elf64_Xword) },
};
size_t
_libelf_fsize(Elf_Type t, int ec, unsigned int v, size_t c)
{
size_t sz;
sz = 0;
if (v != EV_CURRENT)
LIBELF_SET_ERROR(VERSION, 0);
else if ((int) t < ELF_T_FIRST || t > ELF_T_LAST)
LIBELF_SET_ERROR(ARGUMENT, 0);
else {
sz = ec == ELFCLASS64 ? fsize[t].fsz64 : fsize[t].fsz32;
if (sz == 0)
LIBELF_SET_ERROR(UNIMPL, 0);
}
return (sz*c);
}

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/*-
* Copyright (c) 2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <ar.h>
#include <assert.h>
#include <string.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_memory.c 2368 2011-12-29 06:34:28Z jkoshy $");
/*
* Create an ELF descriptor for a memory image, optionally reporting
* parse errors.
*/
Elf *
_libelf_memory(char *image, size_t sz, int reporterror)
{
Elf *e;
int e_class;
enum Elf_Error error;
unsigned int e_byteorder, e_version;
assert(image != NULL);
assert(sz > 0);
if ((e = _libelf_allocate_elf()) == NULL)
return (NULL);
e->e_cmd = ELF_C_READ;
e->e_rawfile = image;
e->e_rawsize = sz;
#undef LIBELF_IS_ELF
#define LIBELF_IS_ELF(P) ((P)[EI_MAG0] == ELFMAG0 && \
(P)[EI_MAG1] == ELFMAG1 && (P)[EI_MAG2] == ELFMAG2 && \
(P)[EI_MAG3] == ELFMAG3)
if (sz > EI_NIDENT && LIBELF_IS_ELF(image)) {
e_byteorder = image[EI_DATA];
e_class = image[EI_CLASS];
e_version = image[EI_VERSION];
error = ELF_E_NONE;
if (e_version > EV_CURRENT)
error = ELF_E_VERSION;
else if ((e_byteorder != ELFDATA2LSB && e_byteorder !=
ELFDATA2MSB) || (e_class != ELFCLASS32 && e_class !=
ELFCLASS64))
error = ELF_E_HEADER;
if (error != ELF_E_NONE) {
if (reporterror) {
LIBELF_PRIVATE(error) = LIBELF_ERROR(error, 0);
(void) _libelf_release_elf(e);
return (NULL);
}
} else {
_libelf_init_elf(e, ELF_K_ELF);
e->e_byteorder = e_byteorder;
e->e_class = e_class;
e->e_version = e_version;
}
} else if (sz >= SARMAG &&
strncmp(image, ARMAG, (size_t) SARMAG) == 0)
return (_libelf_ar_open(e, reporterror));
return (e);
}

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/*-
* Copyright (c) 2006,2008 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: elf_types.m4 321 2009-03-07 16:59:14Z jkoshy $
*/
/*
* ELF types, defined in the "enum Elf_Type" API.
*
* The members of the list form a 2-tuple: (name, C-type-suffix).
* + name is an Elf_Type symbol without the ELF_T_ prefix.
* + C-type-suffix is the suffix for Elf32_ and Elf64_ type names.
*/
/*
* DEFINE_STRUCT(NAME,MEMBERLIST...)
*
* Map a type name to its members.
*
* Each member-list element comprises of pairs of (field name, type),
* in the sequence used in the file representation of NAME.
*
* Each member list element comprises a pair containing a field name
* and a basic type. Basic types include IDENT, HALF, WORD, LWORD,
* ADDR{32,64}, OFF{32,64}, SWORD, XWORD, SXWORD.
*
* The last element of a member list is the null element: _,_.
*/
/*-
* Copyright (c) 2006,2008-2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <libelf.h>
#include <string.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_msize.m4 2225 2011-11-26 18:55:54Z jkoshy $");
/* WARNING: GENERATED FROM libelf_msize.m4. */
struct msize {
size_t msz32;
size_t msz64;
};
static struct msize msize[ELF_T_NUM] = {
[ELF_T_ADDR] = { .msz32 = sizeof(Elf32_Addr), .msz64 = sizeof(Elf64_Addr) },
[ELF_T_BYTE] = { .msz32 = 1, .msz64 = 1 },
[ELF_T_CAP] = { .msz32 = sizeof(Elf32_Cap), .msz64 = sizeof(Elf64_Cap) },
[ELF_T_DYN] = { .msz32 = sizeof(Elf32_Dyn), .msz64 = sizeof(Elf64_Dyn) },
[ELF_T_EHDR] = { .msz32 = sizeof(Elf32_Ehdr), .msz64 = sizeof(Elf64_Ehdr) },
[ELF_T_GNUHASH] = { .msz32 = 1, .msz64 = 1 },
[ELF_T_HALF] = { .msz32 = sizeof(Elf32_Half), .msz64 = sizeof(Elf64_Half) },
[ELF_T_LWORD] = { .msz32 = sizeof(Elf32_Lword), .msz64 = sizeof(Elf64_Lword) },
[ELF_T_MOVE] = { .msz32 = sizeof(Elf32_Move), .msz64 = sizeof(Elf64_Move) },
[ELF_T_MOVEP] = { .msz32 = 0, .msz64 = 0 },
[ELF_T_NOTE] = { .msz32 = 1, .msz64 = 1 },
[ELF_T_OFF] = { .msz32 = sizeof(Elf32_Off), .msz64 = sizeof(Elf64_Off) },
[ELF_T_PHDR] = { .msz32 = sizeof(Elf32_Phdr), .msz64 = sizeof(Elf64_Phdr) },
[ELF_T_REL] = { .msz32 = sizeof(Elf32_Rel), .msz64 = sizeof(Elf64_Rel) },
[ELF_T_RELA] = { .msz32 = sizeof(Elf32_Rela), .msz64 = sizeof(Elf64_Rela) },
[ELF_T_SHDR] = { .msz32 = sizeof(Elf32_Shdr), .msz64 = sizeof(Elf64_Shdr) },
[ELF_T_SWORD] = { .msz32 = sizeof(Elf32_Sword), .msz64 = sizeof(Elf64_Sword) },
[ELF_T_SXWORD] = { .msz32 = 0, .msz64 = sizeof(Elf64_Sxword) },
[ELF_T_SYMINFO] = { .msz32 = sizeof(Elf32_Syminfo), .msz64 = sizeof(Elf64_Syminfo) },
[ELF_T_SYM] = { .msz32 = sizeof(Elf32_Sym), .msz64 = sizeof(Elf64_Sym) },
[ELF_T_VDEF] = { .msz32 = 1, .msz64 = 1 },
[ELF_T_VNEED] = { .msz32 = 1, .msz64 = 1 },
[ELF_T_WORD] = { .msz32 = sizeof(Elf32_Word), .msz64 = sizeof(Elf64_Word) },
[ELF_T_XWORD] = { .msz32 = 0, .msz64 = sizeof(Elf64_Xword) },
};
size_t
_libelf_msize(Elf_Type t, int elfclass, unsigned int version)
{
size_t sz;
assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);
assert((signed) t >= ELF_T_FIRST && t <= ELF_T_LAST);
if (version != EV_CURRENT) {
LIBELF_SET_ERROR(VERSION, 0);
return (0);
}
sz = (elfclass == ELFCLASS32) ? msize[t].msz32 : msize[t].msz64;
return (sz);
}

240
src/libelf/libelf_open.c Normal file
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@ -0,0 +1,240 @@
/*-
* Copyright (c) 2006,2008-2011 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <errno.h>
#include <libelf.h>
#include <stdlib.h>
#include <unistd.h>
#include "_libelf.h"
#if ELFTC_HAVE_MMAP
#include <sys/mman.h>
#endif
ELFTC_VCSID("$Id: libelf_open.c 2364 2011-12-28 17:55:25Z jkoshy $");
#define _LIBELF_INITSIZE (64*1024)
/*
* Read from a device file, pipe or socket.
*/
static void *
_libelf_read_special_file(int fd, size_t *fsz)
{
ssize_t readsz;
size_t bufsz, datasz;
unsigned char *buf, *t;
datasz = 0;
readsz = 0;
bufsz = _LIBELF_INITSIZE;
if ((buf = malloc(bufsz)) == NULL)
goto resourceerror;
/*
* Read data from the file descriptor till we reach EOF, or
* till an error is encountered.
*/
do {
/* Check if we need to expand the data buffer. */
if (datasz == bufsz) {
bufsz *= 2;
if ((t = realloc(buf, bufsz)) == NULL)
goto resourceerror;
buf = t;
}
do {
readsz = bufsz - datasz;
t = buf + datasz;
if ((readsz = read(fd, t, readsz)) <= 0)
break;
datasz += readsz;
} while (datasz < bufsz);
} while (readsz > 0);
if (readsz < 0) {
LIBELF_SET_ERROR(IO, errno);
goto error;
}
assert(readsz == 0);
/*
* Free up extra buffer space.
*/
if (bufsz > datasz) {
if (datasz > 0) {
if ((t = realloc(buf, datasz)) == NULL)
goto resourceerror;
buf = t;
} else { /* Zero bytes read. */
LIBELF_SET_ERROR(ARGUMENT, 0);
free(buf);
buf = NULL;
}
}
*fsz = datasz;
return (buf);
resourceerror:
LIBELF_SET_ERROR(RESOURCE, 0);
error:
if (buf != NULL)
free(buf);
return (NULL);
}
/*
* Read the contents of the file referenced by the file descriptor
* 'fd'.
*/
Elf *
_libelf_open_object(int fd, Elf_Cmd c, int reporterror)
{
Elf *e;
void *m;
mode_t mode;
size_t fsize;
struct stat sb;
unsigned int flags;
assert(c == ELF_C_READ || c == ELF_C_RDWR || c == ELF_C_WRITE);
if (fstat(fd, &sb) < 0) {
LIBELF_SET_ERROR(IO, errno);
return (NULL);
}
mode = sb.st_mode;
fsize = (size_t) sb.st_size;
/*
* Reject unsupported file types.
*/
if (!S_ISREG(mode) && !S_ISCHR(mode) && !S_ISFIFO(mode) &&
!S_ISSOCK(mode)) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
/*
* For ELF_C_WRITE mode, allocate and return a descriptor.
*/
if (c == ELF_C_WRITE) {
if ((e = _libelf_allocate_elf()) != NULL) {
_libelf_init_elf(e, ELF_K_ELF);
e->e_byteorder = LIBELF_PRIVATE(byteorder);
e->e_fd = fd;
e->e_cmd = c;
if (!S_ISREG(mode))
e->e_flags |= LIBELF_F_SPECIAL_FILE;
}
return (e);
}
/*
* ELF_C_READ and ELF_C_RDWR mode.
*/
m = NULL;
flags = 0;
if (S_ISREG(mode)) {
#if ELFTC_HAVE_MMAP
/*
* Always map regular files in with 'PROT_READ'
* permissions.
*
* For objects opened in ELF_C_RDWR mode, when
* elf_update(3) is called, we remove this mapping,
* write file data out using write(2), and map the new
* contents back.
*/
m = mmap(NULL, fsize, PROT_READ, MAP_PRIVATE, fd, (off_t) 0);
if (m == MAP_FAILED)
m = NULL;
else
flags = LIBELF_F_RAWFILE_MMAP;
#endif
/*
* Fallback to a read() if the call to mmap() failed,
* or if mmap() is not available.
*/
if (m == NULL) {
if ((m = malloc(fsize)) == NULL) {
LIBELF_SET_ERROR(RESOURCE, 0);
return (NULL);
}
if (read(fd, m, fsize) != (ssize_t) fsize) {
LIBELF_SET_ERROR(IO, errno);
free(m);
return (NULL);
}
flags = LIBELF_F_RAWFILE_MALLOC;
}
} else if ((m = _libelf_read_special_file(fd, &fsize)) != NULL)
flags = LIBELF_F_RAWFILE_MALLOC | LIBELF_F_SPECIAL_FILE;
else
return (NULL);
if ((e = _libelf_memory(m, fsize, reporterror)) == NULL) {
assert((flags & LIBELF_F_RAWFILE_MALLOC) ||
(flags & LIBELF_F_RAWFILE_MMAP));
if (flags & LIBELF_F_RAWFILE_MALLOC)
free(m);
#if ELFTC_HAVE_MMAP
else
(void) munmap(m, fsize);
#endif
return (NULL);
}
/* ar(1) archives aren't supported in RDWR mode. */
if (c == ELF_C_RDWR && e->e_kind == ELF_K_AR) {
(void) elf_end(e);
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
e->e_flags |= flags;
e->e_fd = fd;
e->e_cmd = c;
return (e);
}

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