usbloadergx/source/homebrewboot/BootHomebrew.c

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#include <gccore.h>
#include <ogcsys.h>
#include <malloc.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <ogc/machine/processor.h>
#include <wiiuse/wpad.h>
#include "fatmounter.h"
#include "dolloader.h"
#include "elfloader.h"
void *innetbuffer = NULL;
int AllocHomebrewMemory(u32 filesize) {
innetbuffer = malloc(filesize);
if (!innetbuffer)
return -1;
return 1;
}
void FreeHomebrewBuffer() {
free(innetbuffer);
innetbuffer = NULL;
}
void CopyHomebrewMemory(u32 read, u8 *temp, u32 len) {
memcpy(((u8 *) innetbuffer)+read, temp, len);
}
int BootHomebrew(char * path) {
void *buffer = NULL;
u32 filesize = 0;
entrypoint entry;
u32 cpu_isr;
FILE * file = fopen(path, "rb");
if (!file) SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
fseek (file, 0, SEEK_END);
filesize = ftell(file);
rewind(file);
buffer = malloc(filesize);
if (fread (buffer, 1, filesize, file) != filesize) {
fclose (file);
free(buffer);
SDCard_deInit();
USBDevice_deInit();
SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
}
fclose (file);
struct __argv args;
bzero(&args, sizeof(args));
args.argvMagic = ARGV_MAGIC;
args.length = strlen(path) + 2;
args.commandLine = (char*)malloc(args.length);
if (!args.commandLine) SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
strcpy(args.commandLine, path);
args.commandLine[args.length - 1] = '\0';
args.argc = 1;
args.argv = &args.commandLine;
args.endARGV = args.argv + 1;
int ret = valid_elf_image(buffer);
if (ret == 1)
entry = (entrypoint) load_elf_image(buffer);
else
entry = (entrypoint) load_dol(buffer, &args);
free(buffer);
if (!entry) {
SDCard_deInit();
USBDevice_deInit();
SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
}
SDCard_deInit();
USBDevice_deInit();
WPAD_Flush(0);
WPAD_Disconnect(0);
WPAD_Shutdown();
SYS_ResetSystem(SYS_SHUTDOWN, 0, 0);
_CPU_ISR_Disable (cpu_isr);
__exception_closeall();
entry();
_CPU_ISR_Restore (cpu_isr);
return 0;
}
int BootHomebrewFromMem() {
entrypoint entry;
u32 cpu_isr;
if (!innetbuffer) {
SDCard_deInit();
USBDevice_deInit();
SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
}
struct __argv args;
int ret = valid_elf_image(innetbuffer);
if (ret == 1)
entry = (entrypoint) load_elf_image(innetbuffer);
else
entry = (entrypoint) load_dol(innetbuffer, &args);
free(innetbuffer);
if (!entry) {
SDCard_deInit();
USBDevice_deInit();
SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
}
SDCard_deInit();
USBDevice_deInit();
WPAD_Flush(0);
WPAD_Disconnect(0);
WPAD_Shutdown();
SYS_ResetSystem(SYS_SHUTDOWN, 0, 0);
_CPU_ISR_Disable (cpu_isr);
__exception_closeall();
entry();
_CPU_ISR_Restore (cpu_isr);
return 0;
}