lib/remove.c

   1 /* Remove a file or directory.
   2    Copyright (C) 2009-2020 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* written by Eric Blake */
  18
  19 #include <config.h>
  20
  21 #include <stdio.h>
  22
  23 #include <errno.h>
  24 #include <unistd.h>
  25
  26 #undef remove
  27
  28 /* Remove NAME from the file system.  This works around C89 platforms
  29    that don't handle directories like POSIX requires; it also works
  30    around Solaris 9 bugs with trailing slash.  */
  31 int
  32 rpl_remove (char const *name)
  33 {
  34   /* It is faster to just try rmdir, and fall back on unlink, than it
  35      is to use lstat to see what we are about to remove.  Technically,
  36      it is more likely that we want unlink, not rmdir, but we cannot
  37      guarantee the safety of unlink on directories.  Trailing slash
  38      bugs are handled by our rmdir and unlink wrappers.  */
  39   int result = rmdir (name);
  40   if (result && errno == ENOTDIR)
  41     result = unlink (name);
  42   return result;
  43 }