From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 12 Jul 2007 18:26:36 +0000 Subject: 2.5-18.1 --- sysdeps/unix/fdopendir.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 sysdeps/unix/fdopendir.c (limited to 'sysdeps/unix/fdopendir.c') diff --git a/sysdeps/unix/fdopendir.c b/sysdeps/unix/fdopendir.c new file mode 100644 index 0000000000..565ce1ed72 --- /dev/null +++ b/sysdeps/unix/fdopendir.c @@ -0,0 +1,52 @@ +/* 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 +#include +#include +#include + +#include + + +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) -- cgit v1.2.1