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/* Work around rmdir bugs.
Copyright (C) 1988, 1990, 1999, 2003-2006, 2009 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
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#undef rmdir
/* Remove directory DIR.
Return 0 if successful, -1 if not. */
int
rpl_rmdir (char const *dir)
{
#if HAVE_RMDIR
/* Work around cygwin 1.5.x bug where rmdir("dir/./") succeeds. */
size_t len = strlen (dir);
int result;
while (len && ISSLASH (dir[len - 1]))
len--;
if (len && dir[len - 1] == '.' && (1 == len || ISSLASH (dir[len - 2])))
{
errno = EINVAL;
return -1;
}
result = rmdir (dir);
/* Work around mingw bug, where rmdir("file/") fails with EINVAL
instead of ENOTDIR. We've already filtered out trailing ., the
only reason allowed by POSIX for EINVAL. */
if (result == -1 && errno == EINVAL)
errno = ENOTDIR;
return result;
#else /* !HAVE_RMDIR */
/* rmdir adapted from GNU tar. FIXME: Delete this implementation in
2010 if no one reports a system with missing rmdir. */
pid_t cpid;
int status;
struct stat statbuf;
if (stat (dir, &statbuf) != 0)
return -1; /* errno already set */
if (!S_ISDIR (statbuf.st_mode))
{
errno = ENOTDIR;
return -1;
}
cpid = fork ();
switch (cpid)
{
case -1: /* cannot fork */
return -1; /* errno already set */
case 0: /* child process */
execl ("/bin/rmdir", "rmdir", dir, (char *) 0);
_exit (1);
default: /* parent process */
/* Wait for kid to finish. */
while (wait (&status) != cpid)
/* Do nothing. */ ;
if (status)
{
/* /bin/rmdir failed. */
errno = EIO;
return -1;
}
return 0;
}
#endif /* !HAVE_RMDIR */
}
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