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