mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-11 22:00:08 +00:00
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/* 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);
|
|
}
|