cosmopolitan/libc/calls/faccessat.c

44 lines
2.6 KiB
C
Raw Normal View History

2020-06-15 14:18:57 +00:00
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi
Copyright 2020 Justine Alexandra Roberts Tunney
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "libc/calls/calls.h"
#include "libc/calls/hefty/internal.h"
2020-06-15 14:18:57 +00:00
#include "libc/calls/internal.h"
#include "libc/dce.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/errfuns.h"
/**
* Checks if effective user can access path in particular ways.
*
* @param dirfd is usually AT_FDCWD
* @param path is a filename or directory
* @param flags can be R_OK, W_OK, X_OK, F_OK
* @return 0 if ok, or -1 and sets errno
* @asyncsignalsafe
*/
int faccessat(int dirfd, const char *path, int mode, uint32_t flags) {
if (!path) return efault();
2020-06-15 14:18:57 +00:00
if (!IsWindows()) {
return faccessat$sysv(dirfd, path, mode, flags);
} else {
return faccessat$nt(dirfd, path, mode, flags);
2020-06-15 14:18:57 +00:00
}
}