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Diffstat (limited to 'e2fsprogs/ext2fs/link.c')
-rw-r--r--e2fsprogs/ext2fs/link.c135
1 files changed, 0 insertions, 135 deletions
diff --git a/e2fsprogs/ext2fs/link.c b/e2fsprogs/ext2fs/link.c
deleted file mode 100644
index 08b2e96..0000000
--- a/e2fsprogs/ext2fs/link.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * link.c --- create links in a ext2fs directory
- *
- * Copyright (C) 1993, 1994 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 "ext2_fs.h"
-#include "ext2fs.h"
-
-struct link_struct {
- const char *name;
- int namelen;
- ext2_ino_t inode;
- int flags;
- int done;
- struct ext2_super_block *sb;
-};
-
-static int link_proc(struct ext2_dir_entry *dirent,
- int offset,
- int blocksize,
- char *buf,
- void *priv_data)
-{
- struct link_struct *ls = (struct link_struct *) priv_data;
- struct ext2_dir_entry *next;
- int rec_len, min_rec_len;
- int ret = 0;
-
- rec_len = EXT2_DIR_REC_LEN(ls->namelen);
-
- /*
- * See if the following directory entry (if any) is unused;
- * if so, absorb it into this one.
- */
- next = (struct ext2_dir_entry *) (buf + offset + dirent->rec_len);
- if ((offset + dirent->rec_len < blocksize - 8) &&
- (next->inode == 0) &&
- (offset + dirent->rec_len + next->rec_len <= blocksize)) {
- dirent->rec_len += next->rec_len;
- ret = DIRENT_CHANGED;
- }
-
- /*
- * If the directory entry is used, see if we can split the
- * directory entry to make room for the new name. If so,
- * truncate it and return.
- */
- if (dirent->inode) {
- min_rec_len = EXT2_DIR_REC_LEN(dirent->name_len & 0xFF);
- if (dirent->rec_len < (min_rec_len + rec_len))
- return ret;
- rec_len = dirent->rec_len - min_rec_len;
- dirent->rec_len = min_rec_len;
- next = (struct ext2_dir_entry *) (buf + offset +
- dirent->rec_len);
- next->inode = 0;
- next->name_len = 0;
- next->rec_len = rec_len;
- return DIRENT_CHANGED;
- }
-
- /*
- * If we get this far, then the directory entry is not used.
- * See if we can fit the request entry in. If so, do it.
- */
- if (dirent->rec_len < rec_len)
- return ret;
- dirent->inode = ls->inode;
- dirent->name_len = ls->namelen;
- strncpy(dirent->name, ls->name, ls->namelen);
- if (ls->sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_FILETYPE)
- dirent->name_len |= (ls->flags & 0x7) << 8;
-
- ls->done++;
- return DIRENT_ABORT|DIRENT_CHANGED;
-}
-
-/*
- * Note: the low 3 bits of the flags field are used as the directory
- * entry filetype.
- */
-#ifdef __TURBOC__
-# pragma argsused
-#endif
-errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
- ext2_ino_t ino, int flags)
-{
- errcode_t retval;
- struct link_struct ls;
- struct ext2_inode inode;
-
- EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
-
- if (!(fs->flags & EXT2_FLAG_RW))
- return EXT2_ET_RO_FILSYS;
-
- ls.name = name;
- ls.namelen = name ? strlen(name) : 0;
- ls.inode = ino;
- ls.flags = flags;
- ls.done = 0;
- ls.sb = fs->super;
-
- retval = ext2fs_dir_iterate(fs, dir, DIRENT_FLAG_INCLUDE_EMPTY,
- 0, link_proc, &ls);
- if (retval)
- return retval;
-
- if (!ls.done)
- return EXT2_ET_DIR_NO_SPACE;
-
- if ((retval = ext2fs_read_inode(fs, dir, &inode)) != 0)
- return retval;
-
- if (inode.i_flags & EXT2_INDEX_FL) {
- inode.i_flags &= ~EXT2_INDEX_FL;
- if ((retval = ext2fs_write_inode(fs, dir, &inode)) != 0)
- return retval;
- }
-
- return 0;
-}