mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
e522aa3a07
- ASAN memory morgue is now lockless - Make C11 atomics header more portable - Rewrote pthread keys support to be lockless - Simplify Python's unicode table unpacking code - Make crash report write(2) closer to being atomic - Make it possible to strace/ftrace a single thread - ASAN now checks nul-terminated strings fast and properly - Windows fork() now restores TLS memory of calling thread
59 lines
3.3 KiB
C
59 lines
3.3 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/assert.h"
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#include "libc/calls/asan.internal.h"
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/timespec.internal.h"
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#include "libc/calls/struct/timeval.internal.h"
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#include "libc/calls/syscall_support-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/intrin/asan.internal.h"
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#include "libc/intrin/describeflags.internal.h"
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#include "libc/intrin/strace.internal.h"
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#include "libc/intrin/weaken.h"
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#include "libc/sysv/consts/at.h"
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#include "libc/sysv/errfuns.h"
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#include "libc/zipos/zipos.internal.h"
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int __utimens(int fd, const char *path, const struct timespec ts[2],
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int flags) {
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int rc;
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struct ZiposUri zipname;
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if (IsMetal()) {
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rc = enosys();
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} else if (IsAsan() && ((fd == AT_FDCWD && !__asan_is_valid_str(path)) ||
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(ts && (!__asan_is_valid_timespec(ts + 0) ||
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!__asan_is_valid_timespec(ts + 1))))) {
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rc = efault(); // bad memory
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} else if ((flags & ~AT_SYMLINK_NOFOLLOW)) {
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rc = einval(); // unsupported flag
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} else if (__isfdkind(fd, kFdZip) ||
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(path && (_weaken(__zipos_parseuri) &&
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_weaken(__zipos_parseuri)(path, &zipname) != -1))) {
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rc = enotsup();
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} else if (IsLinux() && !__is_linux_2_6_23() && fd == AT_FDCWD && !flags) {
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rc = sys_utimes(path, (void *)ts); // rhel5 truncates to seconds
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} else if (!IsWindows()) {
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rc = sys_utimensat(fd, path, ts, flags);
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} else {
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rc = sys_utimensat_nt(fd, path, ts, flags);
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}
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return rc;
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}
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