mirror of
https://github.com/jart/cosmopolitan.git
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c1cfca8ae1
- Polyfill UTIME_OMIT on XNU - Refactor Lua build code so it's better - Add unix module to lua.com (Discord request) - Add unix.utimensat() and unix.futimens() to redbean - Avoid creating double slash path in linenoise (#428) - Remove double slashes in NT paths automatically (#428) - Make strerror() smarter about showing NT errors (#428) Fixes #428
75 lines
3.4 KiB
C
75 lines
3.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/nexgen32e/nexgen32e.h"
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#include "libc/sysv/consts/at.h"
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#include "libc/sysv/consts/utime.h"
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#include "libc/sysv/errfuns.h"
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#include "libc/time/time.h"
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int sys_utimensat_xnu(int dirfd, const char *path, const struct timespec ts[2],
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int flags) {
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int i;
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struct stat st;
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struct timeval now, tv[2];
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if (flags) return einval();
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if (!ts || ts[0].tv_nsec == UTIME_NOW || ts[1].tv_nsec == UTIME_NOW) {
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gettimeofday(&now, NULL);
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}
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if (ts && (ts[0].tv_nsec == UTIME_NOW || ts[1].tv_nsec == UTIME_NOW)) {
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if (fstatat(dirfd, path, &st, flags) == -1) return -1;
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}
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if (ts) {
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if (ts[0].tv_nsec == UTIME_NOW) {
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tv[0] = now;
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} else if (ts[0].tv_nsec == UTIME_OMIT) {
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tv[0].tv_sec = st.st_atim.tv_sec;
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tv[0].tv_usec = div1000int64(st.st_atim.tv_nsec);
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} else {
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tv[0].tv_sec = ts[0].tv_sec;
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tv[0].tv_usec = div1000int64(ts[0].tv_nsec);
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}
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if (ts[1].tv_nsec == UTIME_NOW) {
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tv[1] = now;
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} else if (ts[1].tv_nsec == UTIME_OMIT) {
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tv[1].tv_sec = st.st_mtim.tv_sec;
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tv[1].tv_usec = div1000int64(st.st_mtim.tv_nsec);
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} else {
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tv[1].tv_sec = ts[1].tv_sec;
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tv[1].tv_usec = div1000int64(ts[1].tv_nsec);
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}
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} else {
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tv[0] = now;
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tv[1] = now;
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}
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if (path) {
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if (dirfd == AT_FDCWD) {
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return sys_utimes(path, tv);
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} else {
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return enosys();
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}
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} else {
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if (dirfd != AT_FDCWD) {
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return sys_futimes(dirfd, tv);
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} else {
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return einval();
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}
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}
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}
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