cosmopolitan/libc/calls/unmount.c
2023-04-27 05:44:32 -07:00

44 lines
2.4 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 2021 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/calls/mount.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/intrin/strace.internal.h"
/**
* Unmounts file system.
*
* The following flags may be specified:
*
* - `MNT_FORCE`
*
* The following flags may also be used, but could be set to zero at
* runtime if the underlying kernel doesn't support them.
*
* - `MNT_DETACH`: lazily unmount; Linux-only
* - `MNT_EXPIRE`
* - `UMOUNT_NOFOLLOW`
* - `MNT_BYFSID`
*
*/
int unmount(const char *target, int flags) {
int rc;
rc = sys_unmount(target, flags);
STRACE("unmount(%#s, %#x) → %d% m", target, flags, rc);
return rc;
}