74 lines
3.3 KiB
C
74 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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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/conv/conv.h"
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#include "libc/dce.h"
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#include "libc/nt/createfile.h"
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#include "libc/nt/enum/accessmask.h"
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#include "libc/nt/files.h"
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#include "libc/nt/runtime.h"
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#include "libc/nt/struct/filetime.h"
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#include "libc/runtime/runtime.h"
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#include "libc/str/str.h"
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#include "libc/sysv/errfuns.h"
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#include "libc/time/time.h"
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static int utimes$nt(const char *path, const struct timeval times[2]) {
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int rc;
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int64_t fh;
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struct timeval tv;
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struct NtFileTime accessed;
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struct NtFileTime modified;
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uint16_t path16[PATH_MAX];
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if (mkntpath(path, path16) == -1) return -1;
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if (times) {
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accessed = timevaltofiletime(×[0]);
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modified = timevaltofiletime(×[1]);
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} else {
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gettimeofday(&tv, NULL);
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accessed = timevaltofiletime(&tv);
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modified = timevaltofiletime(&tv);
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}
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if ((fh = CreateFile(path16, kNtGenericWrite, kNtFileShareRead, NULL,
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kNtOpenExisting, kNtFileAttributeNormal, 0)) != -1 &&
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SetFileTime(fh, NULL, &accessed, &modified)) {
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rc = 0;
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} else {
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rc = winerr();
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}
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CloseHandle(fh);
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return rc;
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}
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/**
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* Changes last accessed/modified times on file.
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*
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* @param times is access/modified and NULL means now
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* @return 0 on success or -1 w/ errno
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*/
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int utimes(const char *path, const struct timeval times[hasatleast 2]) {
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if (!IsWindows()) {
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return utimes$sysv(path, times);
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} else {
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return utimes$nt(path, times);
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}
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}
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