| /* Copyright (C) 2005, 2006 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <dirent.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <sys/stat.h> |
| |
| #include <not-cancel.h> |
| |
| |
| DIR * |
| __fdopendir (int fd) |
| { |
| struct stat64 statbuf; |
| |
| if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &statbuf), 0) < 0) |
| return NULL; |
| if (__builtin_expect (! S_ISDIR (statbuf.st_mode), 0)) |
| { |
| __set_errno (ENOTDIR); |
| return NULL; |
| } |
| |
| /* Make sure the descriptor allows for reading. */ |
| int flags = __fcntl (fd, F_GETFL); |
| if (__builtin_expect (flags == -1, 0)) |
| return NULL; |
| if (__builtin_expect ((flags & O_ACCMODE) == O_WRONLY, 0)) |
| { |
| __set_errno (EINVAL); |
| return NULL; |
| } |
| |
| return __alloc_dir (fd, false, &statbuf); |
| } |
| weak_alias (__fdopendir, fdopendir) |