diff options
Diffstat (limited to 'e2fslib/ext_attr.c')
-rw-r--r-- | e2fslib/ext_attr.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/e2fslib/ext_attr.c b/e2fslib/ext_attr.c deleted file mode 100644 index 3a281e8..0000000 --- a/e2fslib/ext_attr.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * ext_attr.c --- extended attribute blocks - * - * Copyright (C) Andreas Gruenbacher, <a.gruenbacher@computer.org> - * - * %Begin-Header% - * This file may be redistributed under the terms of the GNU Public - * License. - * %End-Header% - */ - -#include <stdio.h> -#if HAVE_UNISTD_H -#include <unistd.h> -#endif -#include <string.h> -#include <time.h> - -#include "ext2_fs.h" -#include "ext2_ext_attr.h" - -#include "ext2fs.h" - -#ifdef EXT2FS_ENABLE_SWAPFS -void ext2fs_swap_ext_attr(ext2_filsys fs, char *to, char *from) -{ - struct ext2_ext_attr_header *from_header = - (struct ext2_ext_attr_header *)from; - struct ext2_ext_attr_header *to_header = - (struct ext2_ext_attr_header *)to; - struct ext2_ext_attr_entry *from_entry, *to_entry; - char *from_end = (char *)from_header + fs->blocksize; - int n; - - if (to_header != from_header) - memcpy(to_header, from_header, fs->blocksize); - - to_header->h_magic = ext2fs_swab32(from_header->h_magic); - to_header->h_blocks = ext2fs_swab32(from_header->h_blocks); - to_header->h_refcount = ext2fs_swab32(from_header->h_refcount); - for (n=0; n<4; n++) - to_header->h_reserved[n] = - ext2fs_swab32(from_header->h_reserved[n]); - - from_entry = (struct ext2_ext_attr_entry *)(from_header+1); - to_entry = (struct ext2_ext_attr_entry *)(to_header+1); - while ((char *)from_entry < from_end && *(__u32 *)from_entry) { - to_entry->e_value_offs = - ext2fs_swab16(from_entry->e_value_offs); - to_entry->e_value_block = - ext2fs_swab32(from_entry->e_value_block); - to_entry->e_value_size = - ext2fs_swab32(from_entry->e_value_size); - from_entry = EXT2_EXT_ATTR_NEXT(from_entry); - to_entry = EXT2_EXT_ATTR_NEXT(to_entry); - } -} -#endif - -errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf) -{ - errcode_t retval; - struct ext2_ext_attr_entry *entry; - - retval = io_channel_read_blk(fs->io, block, 1, buf); - if (retval) - return retval; -#ifdef EXT2FS_ENABLE_SWAPFS - if ((fs->flags & (EXT2_FLAG_SWAP_BYTES| - EXT2_FLAG_SWAP_BYTES_READ)) != 0) - ext2fs_swap_ext_attr(fs, buf, buf); -#endif - return 0; -} - -errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, void *inbuf) -{ - errcode_t retval; - char *p, *end, *write_buf; - char *buf = NULL; - struct ext2_dir_entry *dirent; - -#ifdef EXT2FS_ENABLE_SWAPFS - if ((fs->flags & EXT2_FLAG_SWAP_BYTES) || - (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)) { - retval = ext2fs_get_mem(fs->blocksize, (void **) &buf); - if (retval) - return retval; - write_buf = buf; - ext2fs_swap_ext_attr(fs, buf, inbuf); - } else -#endif - write_buf = (char *) inbuf; - retval = io_channel_write_blk(fs->io, block, 1, write_buf); - if (buf) - ext2fs_free_mem((void **) &buf); - if (!retval) - ext2fs_mark_changed(fs); - return retval; -} |