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author | Denys Vlasenko | 2015-07-19 23:12:51 +0200 |
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committer | Denys Vlasenko | 2015-07-19 23:12:51 +0200 |
commit | ce193f809b32368796a3aacf2ac8ba277f4c102a (patch) | |
tree | 6528caca18ddaf19d1326329ee4ab83dcd46f1ee /e2fsprogs/old_e2fsprogs/ext2fs/badblocks.c | |
parent | d840c5d139cfa50fbe4f6f67c178b0edf0c690c8 (diff) | |
download | busybox-ce193f809b32368796a3aacf2ac8ba277f4c102a.zip busybox-ce193f809b32368796a3aacf2ac8ba277f4c102a.tar.gz |
Remove old_e2fsprogs/*
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'e2fsprogs/old_e2fsprogs/ext2fs/badblocks.c')
-rw-r--r-- | e2fsprogs/old_e2fsprogs/ext2fs/badblocks.c | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/badblocks.c b/e2fsprogs/old_e2fsprogs/ext2fs/badblocks.c deleted file mode 100644 index 6e5cc10..0000000 --- a/e2fsprogs/old_e2fsprogs/ext2fs/badblocks.c +++ /dev/null @@ -1,328 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * badblocks.c --- routines to manipulate the bad block structure - * - * Copyright (C) 1994, 1995, 1996 Theodore Ts'o. - * - * %Begin-Header% - * This file may be redistributed under the terms of the GNU Public - * License. - * %End-Header% - */ - -#include <stdio.h> -#include <string.h> -#if HAVE_UNISTD_H -#include <unistd.h> -#endif -#include <fcntl.h> -#include <time.h> -#if HAVE_SYS_STAT_H -#include <sys/stat.h> -#endif -#if HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif - -#include "ext2_fs.h" -#include "ext2fsP.h" - -/* - * Helper function for making a badblocks list - */ -static errcode_t make_u32_list(int size, int num, __u32 *list, - ext2_u32_list *ret) -{ - ext2_u32_list bb; - errcode_t retval; - - retval = ext2fs_get_mem(sizeof(struct ext2_struct_u32_list), &bb); - if (retval) - return retval; - memset(bb, 0, sizeof(struct ext2_struct_u32_list)); - bb->magic = EXT2_ET_MAGIC_BADBLOCKS_LIST; - bb->size = size ? size : 10; - bb->num = num; - retval = ext2fs_get_mem(bb->size * sizeof(blk_t), &bb->list); - if (!bb->list) { - ext2fs_free_mem(&bb); - return retval; - } - if (list) - memcpy(bb->list, list, bb->size * sizeof(blk_t)); - else - memset(bb->list, 0, bb->size * sizeof(blk_t)); - *ret = bb; - return 0; -} - - -/* - * This procedure creates an empty u32 list. - */ -errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size) -{ - return make_u32_list(size, 0, 0, ret); -} - -/* - * This procedure creates an empty badblocks list. - */ -errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret, int size) -{ - return make_u32_list(size, 0, 0, (ext2_badblocks_list *) ret); -} - - -/* - * This procedure copies a badblocks list - */ -errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest) -{ - errcode_t retval; - - retval = make_u32_list(src->size, src->num, src->list, dest); - if (retval) - return retval; - (*dest)->badblocks_flags = src->badblocks_flags; - return 0; -} - -errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src, - ext2_badblocks_list *dest) -{ - return ext2fs_u32_copy((ext2_u32_list) src, - (ext2_u32_list *) dest); -} - -/* - * This procedure frees a badblocks list. - * - * (note: moved to closefs.c) - */ - - -/* - * This procedure adds a block to a badblocks list. - */ -errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk) -{ - errcode_t retval; - int i, j; - unsigned long old_size; - - EXT2_CHECK_MAGIC(bb, EXT2_ET_MAGIC_BADBLOCKS_LIST); - - if (bb->num >= bb->size) { - old_size = bb->size * sizeof(__u32); - bb->size += 100; - retval = ext2fs_resize_mem(old_size, bb->size * sizeof(__u32), - &bb->list); - if (retval) { - bb->size -= 100; - return retval; - } - } - - /* - * Add special case code for appending to the end of the list - */ - i = bb->num-1; - if ((bb->num != 0) && (bb->list[i] == blk)) - return 0; - if ((bb->num == 0) || (bb->list[i] < blk)) { - bb->list[bb->num++] = blk; - return 0; - } - - j = bb->num; - for (i=0; i < bb->num; i++) { - if (bb->list[i] == blk) - return 0; - if (bb->list[i] > blk) { - j = i; - break; - } - } - for (i=bb->num; i > j; i--) - bb->list[i] = bb->list[i-1]; - bb->list[j] = blk; - bb->num++; - return 0; -} - -errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb, blk_t blk) -{ - return ext2fs_u32_list_add((ext2_u32_list) bb, (__u32) blk); -} - -/* - * This procedure finds a particular block is on a badblocks - * list. - */ -int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk) -{ - int low, high, mid; - - if (bb->magic != EXT2_ET_MAGIC_BADBLOCKS_LIST) - return -1; - - if (bb->num == 0) - return -1; - - low = 0; - high = bb->num-1; - if (blk == bb->list[low]) - return low; - if (blk == bb->list[high]) - return high; - - while (low < high) { - mid = (low+high)/2; - if (mid == low || mid == high) - break; - if (blk == bb->list[mid]) - return mid; - if (blk < bb->list[mid]) - high = mid; - else - low = mid; - } - return -1; -} - -/* - * This procedure tests to see if a particular block is on a badblocks - * list. - */ -int ext2fs_u32_list_test(ext2_u32_list bb, __u32 blk) -{ - if (ext2fs_u32_list_find(bb, blk) < 0) - return 0; - else - return 1; -} - -int ext2fs_badblocks_list_test(ext2_badblocks_list bb, blk_t blk) -{ - return ext2fs_u32_list_test((ext2_u32_list) bb, (__u32) blk); -} - - -/* - * Remove a block from the badblock list - */ -int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk) -{ - int remloc, i; - - if (bb->num == 0) - return -1; - - remloc = ext2fs_u32_list_find(bb, blk); - if (remloc < 0) - return -1; - - for (i = remloc; i < bb->num - 1; i++) - bb->list[i] = bb->list[i+1]; - bb->num--; - return 0; -} - -void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk) -{ - ext2fs_u32_list_del(bb, blk); -} - -errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb, - ext2_u32_iterate *ret) -{ - ext2_u32_iterate iter; - errcode_t retval; - - EXT2_CHECK_MAGIC(bb, EXT2_ET_MAGIC_BADBLOCKS_LIST); - - retval = ext2fs_get_mem(sizeof(struct ext2_struct_u32_iterate), &iter); - if (retval) - return retval; - - iter->magic = EXT2_ET_MAGIC_BADBLOCKS_ITERATE; - iter->bb = bb; - iter->ptr = 0; - *ret = iter; - return 0; -} - -errcode_t ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb, - ext2_badblocks_iterate *ret) -{ - return ext2fs_u32_list_iterate_begin((ext2_u32_list) bb, - (ext2_u32_iterate *) ret); -} - - -int ext2fs_u32_list_iterate(ext2_u32_iterate iter, __u32 *blk) -{ - ext2_u32_list bb; - - if (iter->magic != EXT2_ET_MAGIC_BADBLOCKS_ITERATE) - return 0; - - bb = iter->bb; - - if (bb->magic != EXT2_ET_MAGIC_BADBLOCKS_LIST) - return 0; - - if (iter->ptr < bb->num) { - *blk = bb->list[iter->ptr++]; - return 1; - } - *blk = 0; - return 0; -} - -int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter, blk_t *blk) -{ - return ext2fs_u32_list_iterate((ext2_u32_iterate) iter, - (__u32 *) blk); -} - - -void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter) -{ - if (!iter || (iter->magic != EXT2_ET_MAGIC_BADBLOCKS_ITERATE)) - return; - - iter->bb = 0; - ext2fs_free_mem(&iter); -} - -void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter) -{ - ext2fs_u32_list_iterate_end((ext2_u32_iterate) iter); -} - - -int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2) -{ - EXT2_CHECK_MAGIC(bb1, EXT2_ET_MAGIC_BADBLOCKS_LIST); - EXT2_CHECK_MAGIC(bb2, EXT2_ET_MAGIC_BADBLOCKS_LIST); - - if (bb1->num != bb2->num) - return 0; - - if (memcmp(bb1->list, bb2->list, bb1->num * sizeof(blk_t)) != 0) - return 0; - return 1; -} - -int ext2fs_badblocks_equal(ext2_badblocks_list bb1, ext2_badblocks_list bb2) -{ - return ext2fs_u32_list_equal((ext2_u32_list) bb1, - (ext2_u32_list) bb2); -} - -int ext2fs_u32_list_count(ext2_u32_list bb) -{ - return bb->num; -} |