lib/rename.c

   1 /* Work around the bug in some systems whereby rename fails when the source
   2    path has a trailing slash.  The rename functions of SunOS 4.1.1_U1 and
   3    mips-dec-ultrix4.4 have this bug.
   4    Copyright (C) 2001, 2002 Free Software Foundation, Inc.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software Foundation,
  18    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 /* written by Volker Borchert */
  21
  22 #include <config.h>
  23 #include <stdio.h>
  24 #if HAVE_STDLIB_H
  25 # include <stdlib.h>
  26 #endif
  27
  28 #if HAVE_STRING_H
  29 # include <string.h>
  30 #else
  31 # include <strings.h>
  32 #endif
  33
  34 #include "dirname.h"
  35 #include "xalloc.h"
  36
  37 #ifndef HAVE_DECL_FREE
  38 "this configure-time declaration test was not run"
  39 #endif
  40 #if !HAVE_DECL_FREE
  41 void free ();
  42 #endif
  43
  44 /* Rename the file SRC_PATH to DST_PATH, removing any trailing
  45    slashes from SRC_PATH.  Needed for SunOS 4.1.1_U1.  */
  46
  47 int
  48 rpl_rename (const char *src_path, const char *dst_path)
  49 {
  50   char *src_temp;
  51   int ret_val;
  52   size_t s_len = strlen (src_path);
  53
  54   if (s_len && src_path[s_len - 1] == '/')
  55     {
  56       src_temp = xstrdup (src_path);
  57       strip_trailing_slashes (src_temp);
  58     }
  59   else
  60     src_temp = (char *) src_path;
  61
  62   ret_val = rename (src_temp, dst_path);
  63
  64   if (src_temp != src_path)
  65     free (src_temp);
  66
  67   return ret_val;
  68 }