| 1 | /* Work around an fstatat bug on Solaris 9.
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| 2 |
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| 3 | Copyright (C) 2006 Free Software Foundation, Inc.
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| 4 |
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| 5 | This program is free software; you can redistribute it and/or modify
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| 6 | it under the terms of the GNU General Public License as published by
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| 7 | the Free Software Foundation; either version 2, or (at your option)
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| 8 | any later version.
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| 9 |
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| 10 | This program is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU General Public License
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| 16 | along with this program; if not, write to the Free Software Foundation,
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| 17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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| 18 |
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| 19 | /* Written by Paul Eggert and Jim Meyering. */
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| 20 |
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| 21 | #include <config.h>
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| 22 |
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| 23 | #define COMPILING_FSTATAT 1
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| 24 | #include "openat.h"
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| 25 |
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| 26 | #include <errno.h>
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| 27 | #include <string.h>
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| 28 |
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| 29 | /* fstatat should always follow symbolic links that end in /, but on
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| 30 | Solaris 9 it doesn't if AT_SYMLINK_NOFOLLOW is specified. This is
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| 31 | the same problem that lstat.c addresses, so solve it in a similar
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| 32 | way. */
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| 33 |
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| 34 | int
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| 35 | rpl_fstatat (int fd, char const *file, struct stat *st, int flag)
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| 36 | {
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| 37 | int result = fstatat (fd, file, st, flag);
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| 38 |
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| 39 | if (result == 0 && (flag & AT_SYMLINK_NOFOLLOW) && S_ISLNK (st->st_mode)
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| 40 | && file[strlen (file) - 1] == '/')
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| 41 | {
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| 42 | /* FILE refers to a symbolic link and the name ends with a slash.
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| 43 | Get info about the link's referent. */
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| 44 | result = fstatat (fd, file, st, flag & ~AT_SYMLINK_NOFOLLOW);
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| 45 | if (result == 0 && ! S_ISDIR (st->st_mode))
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| 46 | {
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| 47 | /* fstatat succeeded and FILE references a non-directory.
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| 48 | But it was specified via a name including a trailing
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| 49 | slash. Fail with errno set to ENOTDIR to indicate the
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| 50 | contradiction. */
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| 51 | errno = ENOTDIR;
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| 52 | return -1;
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| 53 | }
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| 54 | }
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| 55 |
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| 56 | return result;
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| 57 | }
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