external/gpl2/xcvs/dist/lib/rename.c

   1 /* Work around the bug in some systems whereby rename fails when the source
   2    file 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, 2003, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  19
  20 /* written by Volker Borchert */
  21
  22 #ifdef HAVE_CONFIG_H
  23 # include <config.h>
  24 #endif
  25 #undef rename
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #include "dirname.h"
  32 #include "xalloc.h"
  33
  34 /* Rename the file SRC to DST, removing any trailing
  35    slashes from SRC.  Needed for SunOS 4.1.1_U1.  */
  36
  37 int
  38 rpl_rename (char const *src, char const *dst)
  39 {
  40   char *src_temp;
  41   int ret_val;
  42   size_t s_len = strlen (src);
  43
  44   if (s_len && src[s_len - 1] == '/')
  45     {
  46       src_temp = xstrdup (src);
  47       strip_trailing_slashes (src_temp);
  48     }
  49   else
  50     src_temp = (char *) src;
  51
  52   ret_val = rename (src_temp, dst);
  53
  54   if (src_temp != src)
  55     free (src_temp);
  56
  57   return ret_val;
  58 }