mirror of
https://github.com/wiidev/usbloadergx.git
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64f8406b07
*updated libntfs (write fix) *updated libfat *lots of changes in the startup code, removed almost everything. This might cause problems for some drives at loading the gamelist and needs to be adjusted later but better this time. more cleanup is needed in main.cpp and will come. *using libogc sd/usb for config loading and reload to cIOS afterwards *added missing boothomebrew stuff pune forgot NOTE: From now on we will be doing a lot of revs which we won't be compiling and releasing. This revs are officially not available for public so don't making issues regarding those revs. Those will be closed right away. We need first to cleanup a lot of crap and update loader to new standards before releasing stuff again.
272 lines
6.1 KiB
C
272 lines
6.1 KiB
C
/**
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* collate.c - NTFS collation handling. Originated from the Linux-NTFS project.
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*
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* Copyright (c) 2004 Anton Altaparmakov
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* Copyright (c) 2005 Yura Pakhuchiy
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*
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* This program/include file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program/include file is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (in the main directory of the NTFS-3G
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* distribution in the file COPYING); if not, write to the Free Software
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* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#include "attrib.h"
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#include "index.h"
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#include "collate.h"
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#include "debug.h"
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#include "unistr.h"
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#include "logging.h"
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/**
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* ntfs_collate_binary - Which of two binary objects should be listed first
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* @vol: unused
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* @data1:
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* @data1_len:
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* @data2:
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* @data2_len:
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*
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* Description...
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*
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* Returns:
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*/
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static int ntfs_collate_binary(ntfs_volume *vol __attribute__((unused)),
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const void *data1, const int data1_len,
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const void *data2, const int data2_len)
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{
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int rc;
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ntfs_log_trace("Entering.\n");
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rc = memcmp(data1, data2, min(data1_len, data2_len));
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if (!rc && (data1_len != data2_len)) {
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if (data1_len < data2_len)
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rc = -1;
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else
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rc = 1;
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}
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ntfs_log_trace("Done, returning %i.\n", rc);
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return rc;
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}
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/**
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* ntfs_collate_ntofs_ulong - Which of two long ints should be listed first
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* @vol: unused
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* @data1:
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* @data1_len:
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* @data2:
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* @data2_len:
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*
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* Description...
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*
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* Returns:
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*/
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static int ntfs_collate_ntofs_ulong(ntfs_volume *vol __attribute__((unused)),
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const void *data1, const int data1_len,
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const void *data2, const int data2_len)
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{
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int rc;
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u32 d1, d2;
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ntfs_log_trace("Entering.\n");
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if (data1_len != data2_len || data1_len != 4) {
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ntfs_log_error("data1_len or/and data2_len not equal to 4.\n");
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return NTFS_COLLATION_ERROR;
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}
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d1 = le32_to_cpup(data1);
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d2 = le32_to_cpup(data2);
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if (d1 < d2)
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rc = -1;
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else {
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if (d1 == d2)
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rc = 0;
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else
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rc = 1;
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}
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ntfs_log_trace("Done, returning %i.\n", rc);
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return rc;
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}
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/**
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* ntfs_collate_ntofs_ulongs - Which of two le32 arrays should be listed first
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*
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* Returns: -1, 0 or 1 depending of how the arrays compare
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*/
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static int ntfs_collate_ntofs_ulongs(ntfs_volume *vol __attribute__((unused)),
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const void *data1, const int data1_len,
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const void *data2, const int data2_len)
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{
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int rc;
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int len;
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const le32 *p1, *p2;
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u32 d1, d2;
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ntfs_log_trace("Entering.\n");
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if ((data1_len != data2_len) || (data1_len <= 0) || (data1_len & 3)) {
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ntfs_log_error("data1_len or data2_len not valid\n");
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return NTFS_COLLATION_ERROR;
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}
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p1 = (const le32*)data1;
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p2 = (const le32*)data2;
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len = data1_len;
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do {
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d1 = le32_to_cpup(p1);
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p1++;
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d2 = le32_to_cpup(p2);
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p2++;
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} while ((d1 == d2) && ((len -= 4) > 0));
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if (d1 < d2)
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rc = -1;
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else {
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if (d1 == d2)
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rc = 0;
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else
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rc = 1;
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}
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ntfs_log_trace("Done, returning %i.\n", rc);
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return rc;
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}
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/**
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* ntfs_collate_ntofs_security_hash - Which of two security descriptors
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* should be listed first
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* @vol: unused
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* @data1:
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* @data1_len:
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* @data2:
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* @data2_len:
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*
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* JPA compare two security hash keys made of two unsigned le32
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*
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* Returns: -1, 0 or 1 depending of how the keys compare
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*/
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static int ntfs_collate_ntofs_security_hash(ntfs_volume *vol __attribute__((unused)),
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const void *data1, const int data1_len,
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const void *data2, const int data2_len)
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{
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int rc;
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u32 d1, d2;
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const le32 *p1, *p2;
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ntfs_log_trace("Entering.\n");
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if (data1_len != data2_len || data1_len != 8) {
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ntfs_log_error("data1_len or/and data2_len not equal to 8.\n");
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return NTFS_COLLATION_ERROR;
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}
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p1 = (const le32*)data1;
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p2 = (const le32*)data2;
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d1 = le32_to_cpup(p1);
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d2 = le32_to_cpup(p2);
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if (d1 < d2)
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rc = -1;
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else {
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if (d1 > d2)
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rc = 1;
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else {
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p1++;
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p2++;
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d1 = le32_to_cpup(p1);
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d2 = le32_to_cpup(p2);
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if (d1 < d2)
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rc = -1;
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else {
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if (d1 > d2)
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rc = 1;
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else
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rc = 0;
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}
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}
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}
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ntfs_log_trace("Done, returning %i.\n", rc);
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return rc;
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}
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/**
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* ntfs_collate_file_name - Which of two filenames should be listed first
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* @vol:
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* @data1:
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* @data1_len: unused
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* @data2:
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* @data2_len: unused
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*
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* Description...
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*
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* Returns:
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*/
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static int ntfs_collate_file_name(ntfs_volume *vol,
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const void *data1, const int data1_len __attribute__((unused)),
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const void *data2, const int data2_len __attribute__((unused)))
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{
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const FILE_NAME_ATTR *file_name_attr1;
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const FILE_NAME_ATTR *file_name_attr2;
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int rc;
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ntfs_log_trace("Entering.\n");
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file_name_attr1 = (const FILE_NAME_ATTR*)data1;
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file_name_attr2 = (const FILE_NAME_ATTR*)data2;
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rc = ntfs_names_full_collate(
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(ntfschar*)&file_name_attr1->file_name,
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file_name_attr1->file_name_length,
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(ntfschar*)&file_name_attr2->file_name,
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file_name_attr2->file_name_length,
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CASE_SENSITIVE, vol->upcase, vol->upcase_len);
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ntfs_log_trace("Done, returning %i.\n", rc);
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return rc;
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}
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/*
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* Get a pointer to appropriate collation function.
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*
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* Returns NULL if the needed function is not implemented
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*/
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COLLATE ntfs_get_collate_function(COLLATION_RULES cr)
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{
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COLLATE collate;
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switch (cr) {
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case COLLATION_BINARY :
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collate = ntfs_collate_binary;
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break;
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case COLLATION_FILE_NAME :
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collate = ntfs_collate_file_name;
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break;
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case COLLATION_NTOFS_SECURITY_HASH :
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collate = ntfs_collate_ntofs_security_hash;
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break;
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case COLLATION_NTOFS_ULONG :
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collate = ntfs_collate_ntofs_ulong;
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break;
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case COLLATION_NTOFS_ULONGS :
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collate = ntfs_collate_ntofs_ulongs;
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break;
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default :
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errno = EOPNOTSUPP;
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collate = (COLLATE)NULL;
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break;
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}
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return (collate);
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}
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