mirror of
https://github.com/wiidev/usbloadergx.git
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0f17471b27
*Added sources of the custom libs to the branches *Fixed crash when switching from list layout to grid/carousel layout *Removed 1:1 copy option because its meaningless and almost the same as installing all partitions *Fixed install partition selection. This option needs a reset. Go to settings and reselect your option for this. *Fixed schinese and tchinese language modes (filename bugs. has to be schinese.lang and tchinese.lang like on SVN) *Fixed bug in sound buffer circle *Fixed incorrect behaviour of x-flip when selecting system like (thx Cyan for the patch) *Accept ios revision 65535 for Waninkokos IOSes (thx to PPSainity for pointing it out) *Merged the new theming style branch into trunk. Just as a reminder: ALL old themes will not work until the themers did port it to the new style! *Removed old theme style completely Theme example: The example file of the theme is the Default.them file. It can be found in the SVN trunk. Change in loading of themes: When selecting a theme now a list of all .them files in a folder is displayed. The image folder of that theme has to be in the same folder as the .them file. The image path is defined in the head of the .them file in the line with "Image-Folder: Example\n".
623 lines
15 KiB
C
623 lines
15 KiB
C
/*
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* block.c --- iterate over all blocks in an inode
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*
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* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Library
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* General Public License, version 2.
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* %End-Header%
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*/
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#include <stdio.h>
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#include <string.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "ext2_fs.h"
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#include "ext2fs.h"
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struct block_context {
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ext2_filsys fs;
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int (*func)(ext2_filsys fs,
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blk64_t *blocknr,
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e2_blkcnt_t bcount,
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blk64_t ref_blk,
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int ref_offset,
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void *priv_data);
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e2_blkcnt_t bcount;
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int bsize;
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int flags;
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errcode_t errcode;
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char *ind_buf;
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char *dind_buf;
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char *tind_buf;
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void *priv_data;
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};
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#define check_for_ro_violation_return(ctx, ret) \
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do { \
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if (((ctx)->flags & BLOCK_FLAG_READ_ONLY) && \
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((ret) & BLOCK_CHANGED)) { \
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(ctx)->errcode = EXT2_ET_RO_BLOCK_ITERATE; \
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ret |= BLOCK_ABORT | BLOCK_ERROR; \
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return ret; \
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} \
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} while (0)
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#define check_for_ro_violation_goto(ctx, ret, label) \
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do { \
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if (((ctx)->flags & BLOCK_FLAG_READ_ONLY) && \
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((ret) & BLOCK_CHANGED)) { \
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(ctx)->errcode = EXT2_ET_RO_BLOCK_ITERATE; \
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ret |= BLOCK_ABORT | BLOCK_ERROR; \
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goto label; \
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} \
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} while (0)
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static int block_iterate_ind(blk_t *ind_block, blk_t ref_block,
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int ref_offset, struct block_context *ctx)
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{
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int ret = 0, changed = 0;
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int i, flags, limit, offset;
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blk_t *block_nr;
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blk64_t blk64;
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limit = ctx->fs->blocksize >> 2;
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if (!(ctx->flags & BLOCK_FLAG_DEPTH_TRAVERSE) &&
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!(ctx->flags & BLOCK_FLAG_DATA_ONLY)) {
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blk64 = *ind_block;
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ret = (*ctx->func)(ctx->fs, &blk64,
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BLOCK_COUNT_IND, ref_block,
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ref_offset, ctx->priv_data);
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*ind_block = blk64;
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}
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check_for_ro_violation_return(ctx, ret);
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if (!*ind_block || (ret & BLOCK_ABORT)) {
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ctx->bcount += limit;
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return ret;
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}
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if (*ind_block >= ext2fs_blocks_count(ctx->fs->super) ||
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*ind_block < ctx->fs->super->s_first_data_block) {
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ctx->errcode = EXT2_ET_BAD_IND_BLOCK;
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ret |= BLOCK_ERROR;
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return ret;
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}
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ctx->errcode = ext2fs_read_ind_block(ctx->fs, *ind_block,
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ctx->ind_buf);
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if (ctx->errcode) {
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ret |= BLOCK_ERROR;
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return ret;
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}
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block_nr = (blk_t *) ctx->ind_buf;
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offset = 0;
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if (ctx->flags & BLOCK_FLAG_APPEND) {
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for (i = 0; i < limit; i++, ctx->bcount++, block_nr++) {
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blk64 = *block_nr;
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flags = (*ctx->func)(ctx->fs, &blk64, ctx->bcount,
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*ind_block, offset,
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ctx->priv_data);
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*block_nr = blk64;
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changed |= flags;
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if (flags & BLOCK_ABORT) {
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ret |= BLOCK_ABORT;
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break;
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}
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offset += sizeof(blk_t);
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}
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} else {
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for (i = 0; i < limit; i++, ctx->bcount++, block_nr++) {
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if (*block_nr == 0)
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continue;
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blk64 = *block_nr;
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flags = (*ctx->func)(ctx->fs, &blk64, ctx->bcount,
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*ind_block, offset,
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ctx->priv_data);
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*block_nr = blk64;
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changed |= flags;
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if (flags & BLOCK_ABORT) {
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ret |= BLOCK_ABORT;
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break;
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}
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offset += sizeof(blk_t);
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}
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}
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check_for_ro_violation_return(ctx, changed);
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if (changed & BLOCK_CHANGED) {
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ctx->errcode = ext2fs_write_ind_block(ctx->fs, *ind_block,
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ctx->ind_buf);
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if (ctx->errcode)
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ret |= BLOCK_ERROR | BLOCK_ABORT;
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}
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if ((ctx->flags & BLOCK_FLAG_DEPTH_TRAVERSE) &&
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!(ctx->flags & BLOCK_FLAG_DATA_ONLY) &&
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!(ret & BLOCK_ABORT)) {
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blk64 = *ind_block;
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ret |= (*ctx->func)(ctx->fs, &blk64,
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BLOCK_COUNT_IND, ref_block,
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ref_offset, ctx->priv_data);
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*ind_block = blk64;
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}
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check_for_ro_violation_return(ctx, ret);
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return ret;
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}
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static int block_iterate_dind(blk_t *dind_block, blk_t ref_block,
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int ref_offset, struct block_context *ctx)
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{
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int ret = 0, changed = 0;
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int i, flags, limit, offset;
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blk_t *block_nr;
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blk64_t blk64;
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limit = ctx->fs->blocksize >> 2;
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if (!(ctx->flags & (BLOCK_FLAG_DEPTH_TRAVERSE |
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BLOCK_FLAG_DATA_ONLY))) {
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blk64 = *dind_block;
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ret = (*ctx->func)(ctx->fs, &blk64,
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BLOCK_COUNT_DIND, ref_block,
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ref_offset, ctx->priv_data);
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*dind_block = blk64;
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}
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check_for_ro_violation_return(ctx, ret);
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if (!*dind_block || (ret & BLOCK_ABORT)) {
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ctx->bcount += limit*limit;
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return ret;
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}
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if (*dind_block >= ext2fs_blocks_count(ctx->fs->super) ||
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*dind_block < ctx->fs->super->s_first_data_block) {
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ctx->errcode = EXT2_ET_BAD_DIND_BLOCK;
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ret |= BLOCK_ERROR;
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return ret;
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}
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ctx->errcode = ext2fs_read_ind_block(ctx->fs, *dind_block,
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ctx->dind_buf);
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if (ctx->errcode) {
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ret |= BLOCK_ERROR;
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return ret;
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}
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block_nr = (blk_t *) ctx->dind_buf;
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offset = 0;
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if (ctx->flags & BLOCK_FLAG_APPEND) {
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for (i = 0; i < limit; i++, block_nr++) {
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flags = block_iterate_ind(block_nr,
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*dind_block, offset,
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ctx);
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changed |= flags;
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if (flags & (BLOCK_ABORT | BLOCK_ERROR)) {
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ret |= flags & (BLOCK_ABORT | BLOCK_ERROR);
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break;
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}
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offset += sizeof(blk_t);
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}
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} else {
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for (i = 0; i < limit; i++, block_nr++) {
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if (*block_nr == 0) {
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ctx->bcount += limit;
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continue;
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}
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flags = block_iterate_ind(block_nr,
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*dind_block, offset,
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ctx);
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changed |= flags;
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if (flags & (BLOCK_ABORT | BLOCK_ERROR)) {
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ret |= flags & (BLOCK_ABORT | BLOCK_ERROR);
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break;
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}
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offset += sizeof(blk_t);
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}
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}
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check_for_ro_violation_return(ctx, changed);
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if (changed & BLOCK_CHANGED) {
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ctx->errcode = ext2fs_write_ind_block(ctx->fs, *dind_block,
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ctx->dind_buf);
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if (ctx->errcode)
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ret |= BLOCK_ERROR | BLOCK_ABORT;
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}
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if ((ctx->flags & BLOCK_FLAG_DEPTH_TRAVERSE) &&
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!(ctx->flags & BLOCK_FLAG_DATA_ONLY) &&
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!(ret & BLOCK_ABORT)) {
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blk64 = *dind_block;
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ret |= (*ctx->func)(ctx->fs, &blk64,
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BLOCK_COUNT_DIND, ref_block,
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ref_offset, ctx->priv_data);
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*dind_block = blk64;
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}
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check_for_ro_violation_return(ctx, ret);
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return ret;
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}
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static int block_iterate_tind(blk_t *tind_block, blk_t ref_block,
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int ref_offset, struct block_context *ctx)
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{
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int ret = 0, changed = 0;
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int i, flags, limit, offset;
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blk_t *block_nr;
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blk64_t blk64;
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limit = ctx->fs->blocksize >> 2;
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if (!(ctx->flags & (BLOCK_FLAG_DEPTH_TRAVERSE |
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BLOCK_FLAG_DATA_ONLY))) {
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blk64 = *tind_block;
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ret = (*ctx->func)(ctx->fs, &blk64,
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BLOCK_COUNT_TIND, ref_block,
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ref_offset, ctx->priv_data);
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*tind_block = blk64;
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}
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check_for_ro_violation_return(ctx, ret);
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if (!*tind_block || (ret & BLOCK_ABORT)) {
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ctx->bcount += limit*limit*limit;
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return ret;
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}
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if (*tind_block >= ext2fs_blocks_count(ctx->fs->super) ||
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*tind_block < ctx->fs->super->s_first_data_block) {
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ctx->errcode = EXT2_ET_BAD_TIND_BLOCK;
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ret |= BLOCK_ERROR;
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return ret;
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}
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ctx->errcode = ext2fs_read_ind_block(ctx->fs, *tind_block,
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ctx->tind_buf);
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if (ctx->errcode) {
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ret |= BLOCK_ERROR;
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return ret;
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}
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block_nr = (blk_t *) ctx->tind_buf;
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offset = 0;
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if (ctx->flags & BLOCK_FLAG_APPEND) {
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for (i = 0; i < limit; i++, block_nr++) {
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flags = block_iterate_dind(block_nr,
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*tind_block,
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offset, ctx);
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changed |= flags;
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if (flags & (BLOCK_ABORT | BLOCK_ERROR)) {
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ret |= flags & (BLOCK_ABORT | BLOCK_ERROR);
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break;
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}
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offset += sizeof(blk_t);
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}
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} else {
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for (i = 0; i < limit; i++, block_nr++) {
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if (*block_nr == 0) {
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ctx->bcount += limit*limit;
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continue;
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}
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flags = block_iterate_dind(block_nr,
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*tind_block,
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offset, ctx);
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changed |= flags;
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if (flags & (BLOCK_ABORT | BLOCK_ERROR)) {
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ret |= flags & (BLOCK_ABORT | BLOCK_ERROR);
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break;
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}
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offset += sizeof(blk_t);
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}
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}
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check_for_ro_violation_return(ctx, changed);
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if (changed & BLOCK_CHANGED) {
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ctx->errcode = ext2fs_write_ind_block(ctx->fs, *tind_block,
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ctx->tind_buf);
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if (ctx->errcode)
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ret |= BLOCK_ERROR | BLOCK_ABORT;
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}
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if ((ctx->flags & BLOCK_FLAG_DEPTH_TRAVERSE) &&
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!(ctx->flags & BLOCK_FLAG_DATA_ONLY) &&
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!(ret & BLOCK_ABORT)) {
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blk64 = *tind_block;
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ret |= (*ctx->func)(ctx->fs, &blk64,
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BLOCK_COUNT_TIND, ref_block,
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ref_offset, ctx->priv_data);
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*tind_block = blk64;
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}
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check_for_ro_violation_return(ctx, ret);
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return ret;
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}
|
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errcode_t ext2fs_block_iterate3(ext2_filsys fs,
|
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ext2_ino_t ino,
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int flags,
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char *block_buf,
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int (*func)(ext2_filsys fs,
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blk64_t *blocknr,
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e2_blkcnt_t blockcnt,
|
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blk64_t ref_blk,
|
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int ref_offset,
|
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void *priv_data),
|
|
void *priv_data)
|
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{
|
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int i;
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int r, ret = 0;
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struct ext2_inode inode;
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errcode_t retval;
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struct block_context ctx;
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int limit;
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blk64_t blk64;
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EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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ctx.errcode = ext2fs_read_inode(fs, ino, &inode);
|
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if (ctx.errcode)
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return ctx.errcode;
|
|
|
|
/*
|
|
* Check to see if we need to limit large files
|
|
*/
|
|
if (flags & BLOCK_FLAG_NO_LARGE) {
|
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if (!LINUX_S_ISDIR(inode.i_mode) &&
|
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(inode.i_size_high != 0))
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return EXT2_ET_FILE_TOO_BIG;
|
|
}
|
|
|
|
limit = fs->blocksize >> 2;
|
|
|
|
ctx.fs = fs;
|
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ctx.func = func;
|
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ctx.priv_data = priv_data;
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|
ctx.flags = flags;
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|
ctx.bcount = 0;
|
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if (block_buf) {
|
|
ctx.ind_buf = block_buf;
|
|
} else {
|
|
retval = ext2fs_get_array(3, fs->blocksize, &ctx.ind_buf);
|
|
if (retval)
|
|
return retval;
|
|
}
|
|
ctx.dind_buf = ctx.ind_buf + fs->blocksize;
|
|
ctx.tind_buf = ctx.dind_buf + fs->blocksize;
|
|
|
|
/*
|
|
* Iterate over the HURD translator block (if present)
|
|
*/
|
|
if ((fs->super->s_creator_os == EXT2_OS_HURD) &&
|
|
!(flags & BLOCK_FLAG_DATA_ONLY)) {
|
|
if (inode.osd1.hurd1.h_i_translator) {
|
|
blk64 = inode.osd1.hurd1.h_i_translator;
|
|
ret |= (*ctx.func)(fs, &blk64,
|
|
BLOCK_COUNT_TRANSLATOR,
|
|
0, 0, priv_data);
|
|
inode.osd1.hurd1.h_i_translator = (blk_t) blk64;
|
|
if (ret & BLOCK_ABORT)
|
|
goto abort_exit;
|
|
check_for_ro_violation_goto(&ctx, ret, abort_exit);
|
|
}
|
|
}
|
|
|
|
if (inode.i_flags & EXT4_EXTENTS_FL) {
|
|
ext2_extent_handle_t handle;
|
|
struct ext2fs_extent extent;
|
|
e2_blkcnt_t blockcnt = 0;
|
|
blk64_t blk, new_blk;
|
|
int op = EXT2_EXTENT_ROOT;
|
|
int uninit;
|
|
unsigned int j;
|
|
|
|
ctx.errcode = ext2fs_extent_open2(fs, ino, &inode, &handle);
|
|
if (ctx.errcode)
|
|
goto abort_exit;
|
|
|
|
while (1) {
|
|
ctx.errcode = ext2fs_extent_get(handle, op, &extent);
|
|
if (ctx.errcode) {
|
|
if (ctx.errcode != EXT2_ET_EXTENT_NO_NEXT)
|
|
break;
|
|
ctx.errcode = 0;
|
|
if (!(flags & BLOCK_FLAG_APPEND))
|
|
break;
|
|
next_block_set:
|
|
blk = 0;
|
|
r = (*ctx.func)(fs, &blk, blockcnt,
|
|
0, 0, priv_data);
|
|
ret |= r;
|
|
check_for_ro_violation_goto(&ctx, ret,
|
|
extent_errout);
|
|
if (r & BLOCK_CHANGED) {
|
|
ctx.errcode =
|
|
ext2fs_extent_set_bmap(handle,
|
|
(blk64_t) blockcnt++,
|
|
(blk64_t) blk, 0);
|
|
if (ctx.errcode || (ret & BLOCK_ABORT))
|
|
break;
|
|
if (blk)
|
|
goto next_block_set;
|
|
}
|
|
break;
|
|
}
|
|
|
|
op = EXT2_EXTENT_NEXT;
|
|
blk = extent.e_pblk;
|
|
if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
|
|
if (ctx.flags & BLOCK_FLAG_DATA_ONLY)
|
|
continue;
|
|
if ((!(extent.e_flags &
|
|
EXT2_EXTENT_FLAGS_SECOND_VISIT) &&
|
|
!(ctx.flags & BLOCK_FLAG_DEPTH_TRAVERSE)) ||
|
|
((extent.e_flags &
|
|
EXT2_EXTENT_FLAGS_SECOND_VISIT) &&
|
|
(ctx.flags & BLOCK_FLAG_DEPTH_TRAVERSE))) {
|
|
ret |= (*ctx.func)(fs, &blk,
|
|
-1, 0, 0, priv_data);
|
|
if (ret & BLOCK_CHANGED) {
|
|
extent.e_pblk = blk;
|
|
ctx.errcode =
|
|
ext2fs_extent_replace(handle, 0, &extent);
|
|
if (ctx.errcode)
|
|
break;
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
uninit = 0;
|
|
if (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT)
|
|
uninit = EXT2_EXTENT_SET_BMAP_UNINIT;
|
|
for (blockcnt = extent.e_lblk, j = 0;
|
|
j < extent.e_len;
|
|
blk++, blockcnt++, j++) {
|
|
new_blk = blk;
|
|
r = (*ctx.func)(fs, &new_blk, blockcnt,
|
|
0, 0, priv_data);
|
|
ret |= r;
|
|
check_for_ro_violation_goto(&ctx, ret,
|
|
extent_errout);
|
|
if (r & BLOCK_CHANGED) {
|
|
ctx.errcode =
|
|
ext2fs_extent_set_bmap(handle,
|
|
(blk64_t) blockcnt,
|
|
new_blk, uninit);
|
|
if (ctx.errcode)
|
|
goto extent_errout;
|
|
}
|
|
if (ret & BLOCK_ABORT)
|
|
break;
|
|
}
|
|
}
|
|
|
|
extent_errout:
|
|
ext2fs_extent_free(handle);
|
|
ret |= BLOCK_ERROR | BLOCK_ABORT;
|
|
goto errout;
|
|
}
|
|
|
|
/*
|
|
* Iterate over normal data blocks
|
|
*/
|
|
for (i = 0; i < EXT2_NDIR_BLOCKS ; i++, ctx.bcount++) {
|
|
if (inode.i_block[i] || (flags & BLOCK_FLAG_APPEND)) {
|
|
blk64 = inode.i_block[i];
|
|
ret |= (*ctx.func)(fs, &blk64, ctx.bcount, 0, i,
|
|
priv_data);
|
|
inode.i_block[i] = (blk_t) blk64;
|
|
if (ret & BLOCK_ABORT)
|
|
goto abort_exit;
|
|
}
|
|
}
|
|
check_for_ro_violation_goto(&ctx, ret, abort_exit);
|
|
if (inode.i_block[EXT2_IND_BLOCK] || (flags & BLOCK_FLAG_APPEND)) {
|
|
ret |= block_iterate_ind(&inode.i_block[EXT2_IND_BLOCK],
|
|
0, EXT2_IND_BLOCK, &ctx);
|
|
if (ret & BLOCK_ABORT)
|
|
goto abort_exit;
|
|
} else
|
|
ctx.bcount += limit;
|
|
if (inode.i_block[EXT2_DIND_BLOCK] || (flags & BLOCK_FLAG_APPEND)) {
|
|
ret |= block_iterate_dind(&inode.i_block[EXT2_DIND_BLOCK],
|
|
0, EXT2_DIND_BLOCK, &ctx);
|
|
if (ret & BLOCK_ABORT)
|
|
goto abort_exit;
|
|
} else
|
|
ctx.bcount += limit * limit;
|
|
if (inode.i_block[EXT2_TIND_BLOCK] || (flags & BLOCK_FLAG_APPEND)) {
|
|
ret |= block_iterate_tind(&inode.i_block[EXT2_TIND_BLOCK],
|
|
0, EXT2_TIND_BLOCK, &ctx);
|
|
if (ret & BLOCK_ABORT)
|
|
goto abort_exit;
|
|
}
|
|
|
|
abort_exit:
|
|
if (ret & BLOCK_CHANGED) {
|
|
retval = ext2fs_write_inode(fs, ino, &inode);
|
|
if (retval) {
|
|
ret |= BLOCK_ERROR;
|
|
ctx.errcode = retval;
|
|
}
|
|
}
|
|
errout:
|
|
if (!block_buf)
|
|
ext2fs_free_mem(&ctx.ind_buf);
|
|
|
|
return (ret & BLOCK_ERROR) ? ctx.errcode : 0;
|
|
}
|
|
|
|
/*
|
|
* Emulate the old ext2fs_block_iterate function!
|
|
*/
|
|
|
|
struct xlate64 {
|
|
int (*func)(ext2_filsys fs,
|
|
blk_t *blocknr,
|
|
e2_blkcnt_t blockcnt,
|
|
blk_t ref_blk,
|
|
int ref_offset,
|
|
void *priv_data);
|
|
void *real_private;
|
|
};
|
|
|
|
static int xlate64_func(ext2_filsys fs, blk64_t *blocknr,
|
|
e2_blkcnt_t blockcnt, blk64_t ref_blk,
|
|
int ref_offset, void *priv_data)
|
|
{
|
|
struct xlate64 *xl = (struct xlate64 *) priv_data;
|
|
int ret;
|
|
blk_t block32 = *blocknr;
|
|
|
|
ret = (*xl->func)(fs, &block32, blockcnt, (blk_t) ref_blk, ref_offset,
|
|
xl->real_private);
|
|
*blocknr = block32;
|
|
return ret;
|
|
}
|
|
|
|
errcode_t ext2fs_block_iterate2(ext2_filsys fs,
|
|
ext2_ino_t ino,
|
|
int flags,
|
|
char *block_buf,
|
|
int (*func)(ext2_filsys fs,
|
|
blk_t *blocknr,
|
|
e2_blkcnt_t blockcnt,
|
|
blk_t ref_blk,
|
|
int ref_offset,
|
|
void *priv_data),
|
|
void *priv_data)
|
|
{
|
|
struct xlate64 xl;
|
|
|
|
xl.real_private = priv_data;
|
|
xl.func = func;
|
|
|
|
return ext2fs_block_iterate3(fs, ino, flags, block_buf,
|
|
xlate64_func, &xl);
|
|
}
|
|
|
|
|
|
struct xlate {
|
|
int (*func)(ext2_filsys fs,
|
|
blk_t *blocknr,
|
|
int bcount,
|
|
void *priv_data);
|
|
void *real_private;
|
|
};
|
|
|
|
#ifdef __TURBOC__
|
|
#pragma argsused
|
|
#endif
|
|
static int xlate_func(ext2_filsys fs, blk_t *blocknr, e2_blkcnt_t blockcnt,
|
|
blk_t ref_block EXT2FS_ATTR((unused)),
|
|
int ref_offset EXT2FS_ATTR((unused)),
|
|
void *priv_data)
|
|
{
|
|
struct xlate *xl = (struct xlate *) priv_data;
|
|
|
|
return (*xl->func)(fs, blocknr, (int) blockcnt, xl->real_private);
|
|
}
|
|
|
|
errcode_t ext2fs_block_iterate(ext2_filsys fs,
|
|
ext2_ino_t ino,
|
|
int flags,
|
|
char *block_buf,
|
|
int (*func)(ext2_filsys fs,
|
|
blk_t *blocknr,
|
|
int blockcnt,
|
|
void *priv_data),
|
|
void *priv_data)
|
|
{
|
|
struct xlate xl;
|
|
|
|
xl.real_private = priv_data;
|
|
xl.func = func;
|
|
|
|
return ext2fs_block_iterate2(fs, ino, BLOCK_FLAG_NO_LARGE | flags,
|
|
block_buf, xlate_func, &xl);
|
|
}
|
|
|