f5e06bc55a
We were attempting to include rc.h in rc-misc.h instead of the source files where it should be included.
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
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* swclock.c
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* Sets the system time from the mtime of the given file.
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* This is useful for systems who do not have a working RTC and rely on ntp.
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* OpenRC relies on the correct system time for a lot of operations
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* so this is needed quite early.
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*/
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/*
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* Copyright (c) 2007-2015 The OpenRC Authors.
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* See the Authors file at the top-level directory of this distribution and
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* https://github.com/OpenRC/openrc/blob/master/AUTHORS
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*
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* This file is part of OpenRC. It is subject to the license terms in
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* the LICENSE file found in the top-level directory of this
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* distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
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* This file may not be copied, modified, propagated, or distributed
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* except according to the terms contained in the LICENSE file.
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*/
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#include <sys/time.h>
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#include <sys/types.h>
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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 <getopt.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <utime.h>
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#include "einfo.h"
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#include "rc.h"
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#include "rc-misc.h"
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#include "_usage.h"
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#define RC_SHUTDOWNTIME RC_SVCDIR "/shutdowntime"
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const char *applet = NULL;
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const char *extraopts = "file";
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const char *getoptstring = "sw" getoptstring_COMMON;
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const struct option longopts[] = {
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{ "save", 0, NULL, 's' },
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{ "warn", 0, NULL, 'w' },
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longopts_COMMON
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};
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const char * const longopts_help[] = {
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"saves the time",
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"no error if no reference file",
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longopts_help_COMMON
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};
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const char *usagestring = NULL;
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int main(int argc, char **argv)
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{
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int opt, sflag = 0, wflag = 0;
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const char *file = RC_SHUTDOWNTIME;
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struct stat sb;
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struct timeval tv;
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applet = basename_c(argv[0]);
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while ((opt = getopt_long(argc, argv, getoptstring,
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longopts, (int *) 0)) != -1)
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{
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switch (opt) {
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case 's':
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sflag = 1;
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break;
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case 'w':
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wflag = 1;
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break;
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case_RC_COMMON_GETOPT
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}
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}
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if (optind < argc)
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file = argv[optind++];
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if (sflag) {
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if (stat(file, &sb) == -1) {
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opt = open(file, O_WRONLY | O_CREAT, 0644);
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if (opt == -1)
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eerrorx("swclock: open: %s", strerror(errno));
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close(opt);
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} else
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if (utime(file, NULL) == -1)
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eerrorx("swclock: utime: %s", strerror(errno));
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return 0;
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}
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if (stat(file, &sb) == -1) {
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if (wflag != 0 && errno == ENOENT)
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ewarn("swclock: `%s': %s", file, strerror(errno));
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else
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eerrorx("swclock: `%s': %s", file, strerror(errno));
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return 0;
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}
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tv.tv_sec = sb.st_mtime;
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tv.tv_usec = 0;
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if (settimeofday(&tv, NULL) == -1)
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eerrorx("swclock: settimeofday: %s", strerror(errno));
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return 0;
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}
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