134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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#include <time.h>
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#include <linux/android_alarm.h>
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#include <sys/ioctl.h>
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static void settime(char *s) {
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struct tm tm;
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int day = atoi(s);
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int hour;
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time_t t;
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int fd;
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struct timespec ts;
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while (*s && *s != '.')
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s++;
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if (*s)
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s++;
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hour = atoi(s);
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tm.tm_year = day / 10000 - 1900;
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tm.tm_mon = (day % 10000) / 100 - 1;
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tm.tm_mday = (day % 100);
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tm.tm_hour = hour / 10000;
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tm.tm_min = (hour % 10000) / 100;
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tm.tm_sec = (hour % 100);
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tm.tm_isdst = -1;
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t = mktime(&tm);
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fd = open("/dev/alarm", O_RDWR);
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ts.tv_sec = t;
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ts.tv_nsec = 0;
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ioctl(fd, ANDROID_ALARM_SET_RTC, &ts);
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}
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int date_main(int argc, char *argv[])
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{
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int c;
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int res;
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struct tm tm;
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time_t t;
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struct timeval tv;
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struct timespec ts;
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char strbuf[260];
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int fd;
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int useutc = 0;
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tzset();
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do {
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c = getopt(argc, argv, "us:");
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if (c == EOF)
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break;
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switch (c) {
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case 'u':
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useutc = 1;
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break;
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case 's':
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settime(optarg);
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break;
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case '?':
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fprintf(stderr, "%s: invalid option -%c\n",
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argv[0], optopt);
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exit(1);
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}
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} while (1);
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if(optind + 2 < argc) {
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fprintf(stderr,"%s [-u] [date]\n", argv[0]);
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return 1;
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}
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int hasfmt = argc == optind + 1 && argv[optind][0] == '+';
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if(optind == argc || hasfmt) {
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char buf[2000];
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time(&t);
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if (useutc) {
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gmtime_r(&t, &tm);
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strftime(strbuf, sizeof(strbuf),
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(hasfmt ? argv[optind] + 1 : "%a %b %e %H:%M:%S GMT %Y"),
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&tm);
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} else {
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localtime_r(&t, &tm);
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strftime(strbuf, sizeof(strbuf),
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(hasfmt ? argv[optind] + 1 : "%a %b %e %H:%M:%S %Z %Y"),
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&tm);
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}
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printf("%s\n", strbuf);
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}
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else if(optind + 1 == argc) {
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#if 0
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struct tm *tmptr;
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tmptr = getdate(argv[optind]);
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if(tmptr == NULL) {
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fprintf(stderr,"getdate_r failed\n");
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return 1;
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}
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tm = *tmptr;
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#if 0
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if(getdate_r(argv[optind], &tm) < 0) {
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fprintf(stderr,"getdate_r failed %s\n", strerror(errno));
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return 1;
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}
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#endif
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#endif
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//strptime(argv[optind], NULL, &tm);
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//tv.tv_sec = mktime(&tm);
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//tv.tv_usec = 0;
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strtotimeval(argv[optind], &tv);
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printf("time %s -> %d.%d\n", argv[optind], tv.tv_sec, tv.tv_usec);
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fd = open("/dev/alarm", O_RDWR);
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ts.tv_sec = tv.tv_sec;
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ts.tv_nsec = tv.tv_usec * 1000;
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res = ioctl(fd, ANDROID_ALARM_SET_RTC, &ts);
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//res = settimeofday(&tv, NULL);
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if(res < 0) {
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fprintf(stderr,"settimeofday failed %s\n", strerror(errno));
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return 1;
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}
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}
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else {
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fprintf(stderr,"%s [-s 20070325.123456] [-u] [date]\n", argv[0]);
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return 1;
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}
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return 0;
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}
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