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108 lines
3.3 KiB
108 lines
3.3 KiB
/*- |
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* Copyright (c) 2015 Jilles Tjoelker |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include <sys/cdefs.h> |
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__FBSDID("$FreeBSD$"); |
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#include <sys/stat.h> |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <time.h> |
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#ifndef UTIME_NOW |
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#define UTIME_NOW -1 |
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#define UTIME_OMIT -2 |
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#endif |
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int |
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utimensat(int fd, const char *path, const struct timespec times[2], int flag) |
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{ |
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struct timeval now, tv[2], *tvp; |
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struct stat sb; |
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int osreldate; |
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if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0) { |
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errno = EINVAL; |
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return (-1); |
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} |
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if (times == NULL || (times[0].tv_nsec == UTIME_NOW && |
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times[1].tv_nsec == UTIME_NOW)) |
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tvp = NULL; |
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else if (times[0].tv_nsec == UTIME_OMIT && |
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times[1].tv_nsec == UTIME_OMIT) |
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return (0); |
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else { |
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if ((times[0].tv_nsec < 0 || times[0].tv_nsec > 999999999) && |
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times[0].tv_nsec != UTIME_NOW && |
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times[0].tv_nsec != UTIME_OMIT) { |
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errno = EINVAL; |
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return (-1); |
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} |
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if ((times[1].tv_nsec < 0 || times[1].tv_nsec > 999999999) && |
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times[1].tv_nsec != UTIME_NOW && |
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times[1].tv_nsec != UTIME_OMIT) { |
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errno = EINVAL; |
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return (-1); |
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} |
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tv[0].tv_sec = times[0].tv_sec; |
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tv[0].tv_usec = times[0].tv_nsec / 1000; |
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tv[1].tv_sec = times[1].tv_sec; |
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tv[1].tv_usec = times[1].tv_nsec / 1000; |
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tvp = tv; |
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if (times[0].tv_nsec == UTIME_OMIT || |
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times[1].tv_nsec == UTIME_OMIT) { |
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if (fstatat(fd, path, &sb, flag) == -1) |
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return (-1); |
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if (times[0].tv_nsec == UTIME_OMIT) { |
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tv[0].tv_sec = sb.st_atim.tv_sec; |
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tv[0].tv_usec = sb.st_atim.tv_nsec / 1000; |
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} |
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if (times[1].tv_nsec == UTIME_OMIT) { |
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tv[1].tv_sec = sb.st_mtim.tv_sec; |
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tv[1].tv_usec = sb.st_mtim.tv_nsec / 1000; |
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} |
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} |
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if (times[0].tv_nsec == UTIME_NOW || |
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times[1].tv_nsec == UTIME_NOW) { |
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if (gettimeofday(&now, NULL) == -1) |
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return (-1); |
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if (times[0].tv_nsec == UTIME_NOW) |
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tv[0] = now; |
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if (times[1].tv_nsec == UTIME_NOW) |
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tv[1] = now; |
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} |
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} |
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if ((flag & AT_SYMLINK_NOFOLLOW) == 0) |
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return (futimesat(fd, path, tvp)); |
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else if ((flag & AT_SYMLINK_NOFOLLOW) != 0 && |
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(fd == AT_FDCWD || path[0] == '/')) |
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return (lutimes(path, tvp)); |
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else { |
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errno = ENOTSUP; |
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return (-1); |
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} |
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}
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