cosmopolitan/libc/calls/fstatat.c
2021-02-03 19:35:29 -08:00

46 lines
2.7 KiB
C

/*-*- 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 │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/errno.h"
#include "libc/sysv/consts/at.h"
#include "libc/zipos/zipos.internal.h"
/**
* Returns information about thing.
*
* @param dirfd is normally AT_FDCWD but if it's an open directory and
* file is a relative path, then file becomes relative to dirfd
* @param st is where result is stored
* @param flags can have AT_{EMPTY_PATH,NO_AUTOMOUNT,SYMLINK_NOFOLLOW}
* @return 0 on success, or -1 w/ errno
* @see S_ISDIR(st.st_mode), S_ISREG()
* @asyncsignalsafe
*/
int fstatat(int dirfd, const char *path, struct stat *st, uint32_t flags) {
struct ZiposUri zipname;
if (weaken(__zipos_stat) && weaken(__zipos_parseuri)(path, &zipname) != -1) {
return weaken(__zipos_stat)(&zipname, st);
} else if (!IsWindows()) {
return sys_fstatat(dirfd, path, st, flags);
} else {
return sys_fstatat_nt(dirfd, path, st, flags);
}
}