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 2, or (at your option) 8 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, write to the Free Software Foundation, 17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 18 19/* Written by Paul Eggert and Jim Meyering. */ 20 21#include <config.h> 22 23#define COMPILING_FSTATAT 1 24#include "openat.h" 25 26#include <errno.h> 27#include <string.h> 28 29/* fstatat should always follow symbolic links that end in /, but on 30 Solaris 9 it doesn't if AT_SYMLINK_NOFOLLOW is specified. This is 31 the same problem that lstat.c addresses, so solve it in a similar 32 way. */ 33 34int 35rpl_fstatat (int fd, char const *file, struct stat *st, int flag) 36{ 37 int result = fstatat (fd, file, st, flag); 38 39 if (result == 0 && (flag & AT_SYMLINK_NOFOLLOW) && S_ISLNK (st->st_mode) 40 && file[strlen (file) - 1] == '/') 41 { 42 /* FILE refers to a symbolic link and the name ends with a slash. 43 Get info about the link's referent. */ 44 result = fstatat (fd, file, st, flag & ~AT_SYMLINK_NOFOLLOW); 45 if (result == 0 && ! S_ISDIR (st->st_mode)) 46 { 47 /* fstatat succeeded and FILE references a non-directory. 48 But it was specified via a name including a trailing 49 slash. Fail with errno set to ENOTDIR to indicate the 50 contradiction. */ 51 errno = ENOTDIR; 52 return -1; 53 } 54 } 55 56 return result; 57} 58