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/* Work around an fstatat bug on Solaris 9.
Copyright (C) 2006 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/>. */
/* Written by Paul Eggert and Jim Meyering. */
#include <config.h>
#define COMPILING_FSTATAT 1
#include "openat.h"
#include <errno.h>
#include <string.h>
/* fstatat should always follow symbolic links that end in /, but on
Solaris 9 it doesn't if AT_SYMLINK_NOFOLLOW is specified. This is
the same problem that lstat.c addresses, so solve it in a similar
way. */
int
rpl_fstatat (int fd, char const *file, struct stat *st, int flag)
{
int result = fstatat (fd, file, st, flag);
if (result == 0 && (flag & AT_SYMLINK_NOFOLLOW) && S_ISLNK (st->st_mode)
&& file[strlen (file) - 1] == '/')
{
/* FILE refers to a symbolic link and the name ends with a slash.
Get info about the link's referent. */
result = fstatat (fd, file, st, flag & ~AT_SYMLINK_NOFOLLOW);
if (result == 0 && ! S_ISDIR (st->st_mode))
{
/* fstatat succeeded and FILE references a non-directory.
But it was specified via a name including a trailing
slash. Fail with errno set to ENOTDIR to indicate the
contradiction. */
errno = ENOTDIR;
return -1;
}
}
return result;
}
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