-/* BSD compatible rename and directory rename function for System V.
- Copyright (C) 1988, 1990 Free Software Foundation, Inc.
+/* Work around the bug in some systems whereby rename fails when the source
+ path has a trailing slash. The rename functions of SunOS 4.1.1_U1 and
+ mips-dec-ultrix4.4 have this bug.
+ Copyright (C) 2001-2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+/* written by Volker Borchert */
+
#if HAVE_CONFIG_H
# include <config.h>
#endif
+#undef rename
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
-#if STAT_MACROS_BROKEN
-# undef S_ISDIR
-#endif
-
-#if !defined(S_ISDIR) && defined(S_IFDIR)
-# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
-#endif
+#include "dirname.h"
+#include "xalloc.h"
-/* Rename file FROM to file TO.
- Return 0 if successful, -1 if not. */
+/* Rename the file SRC_PATH to DST_PATH, removing any trailing
+ slashes from SRC_PATH. Needed for SunOS 4.1.1_U1. */
int
-rename (char *from, char *to)
+rpl_rename (const char *src_path, const char *dst_path)
{
- struct stat from_stats, to_stats;
- int pid, status;
+ char *src_temp;
+ int ret_val;
+ size_t s_len = strlen (src_path);
- if (stat (from, &from_stats))
- return -1;
-
- /* Be careful not to unlink `from' if it happens to be equal to `to' or
- (on filesystems that silently truncate filenames after 14 characters)
- if `from' and `to' share the significant characters. */
- if (stat (to, &to_stats))
+ if (s_len && src_path[s_len - 1] == '/')
{
- if (errno != ENOENT)
- return -1;
+ src_temp = xstrdup (src_path);
+ strip_trailing_slashes (src_temp);
}
else
- {
- if ((from_stats.st_dev == to_stats.st_dev)
- && (from_stats.st_ino == to_stats.st_ino))
- /* `from' and `to' designate the same file on that filesystem. */
- return 0;
+ src_temp = (char *) src_path;
- if (unlink (to) && errno != ENOENT)
- return -1;
- }
+ ret_val = rename (src_temp, dst_path);
-#ifdef MVDIR
+ if (src_temp != src_path)
+ free (src_temp);
-/* If MVDIR is defined, it should be the full filename of a setuid root
- program able to link and unlink directories. If MVDIR is not defined,
- then the capability of renaming directories may be missing. */
-
- if (S_ISDIR (from_stats.st_mode))
- {
- /* Need a setuid root process to link and unlink directories. */
- pid = fork ();
- switch (pid)
- {
- case -1: /* Error. */
- error (1, errno, "cannot fork");
-
- case 0: /* Child. */
- execl (MVDIR, "mvdir", from, to, (char *) 0);
- error (255, errno, "cannot run `%s'", MVDIR);
-
- default: /* Parent. */
- while (wait (&status) != pid)
- /* Do nothing. */ ;
-
- errno = 0; /* mvdir printed the system error message. */
- if (status)
- return -1;
- }
- }
- else
-
-#endif /* MVDIR */
-
- {
- if (link (from, to))
- return -1;
- if (unlink (from) && errno != ENOENT)
- {
- unlink (to);
- return -1;
- }
- }
- return 0;
+ return ret_val;
}