55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* Replacement in case utimensat(2) is missing
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*
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* Copyright (C) 2017-2023 Joachim Wiberg <troglobit@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* 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 WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <errno.h>
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#include <sys/time.h> /* lutimes(), utimes(), utimensat() */
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#ifndef TIMESPEC_TO_TIMEVAL
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#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
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(tv)->tv_sec = (ts)->tv_sec; \
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(tv)->tv_usec = (ts)->tv_nsec / 1000; \
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}
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#endif
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int
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__utimensat(int dirfd, const char *pathname, const struct timespec ts[2], int flags)
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{
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int ret = -1;
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struct timeval tv[2];
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(void)flags;
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if (dirfd != 0) {
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errno = ENOTSUP;
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return -1;
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}
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TIMESPEC_TO_TIMEVAL(&tv[0], &ts[0]);
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TIMESPEC_TO_TIMEVAL(&tv[1], &ts[1]);
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#ifdef AT_SYMLINK_NOFOLLOW
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if ((flags & AT_SYMLINK_NOFOLLOW) == AT_SYMLINK_NOFOLLOW)
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ret = lutimes(pathname, tv);
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else
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#endif
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ret = utimes(pathname, tv);
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return ret;
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}
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