1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <unistd.h> 4 #include <fcntl.h> 5 #include <string.h> 6 #include <errno.h> 7 #include <time.h> 8 #include <linux/android_alarm.h> 9 #include <sys/ioctl.h> 10 11 static void settime(char *s) { 12 struct tm tm; 13 int day = atoi(s); 14 int hour; 15 time_t t; 16 int fd; 17 struct timespec ts; 18 19 while (*s && *s != '.') 20 s++; 21 22 if (*s) 23 s++; 24 25 hour = atoi(s); 26 27 tm.tm_year = day / 10000 - 1900; 28 tm.tm_mon = (day % 10000) / 100 - 1; 29 tm.tm_mday = (day % 100); 30 tm.tm_hour = hour / 10000; 31 tm.tm_min = (hour % 10000) / 100; 32 tm.tm_sec = (hour % 100); 33 tm.tm_isdst = -1; 34 35 t = mktime(&tm); 36 37 fd = open("/dev/alarm", O_RDWR); 38 ts.tv_sec = t; 39 ts.tv_nsec = 0; 40 ioctl(fd, ANDROID_ALARM_SET_RTC, &ts); 41 } 42 43 int date_main(int argc, char *argv[]) 44 { 45 int c; 46 int res; 47 struct tm tm; 48 time_t t; 49 struct timeval tv; 50 struct timespec ts; 51 char strbuf[260]; 52 int fd; 53 54 int useutc = 0; 55 56 tzset(); 57 58 do { 59 c = getopt(argc, argv, "us:"); 60 if (c == EOF) 61 break; 62 switch (c) { 63 case 'u': 64 useutc = 1; 65 break; 66 case 's': 67 settime(optarg); 68 break; 69 case '?': 70 fprintf(stderr, "%s: invalid option -%c\n", 71 argv[0], optopt); 72 exit(1); 73 } 74 } while (1); 75 if(optind + 2 < argc) { 76 fprintf(stderr,"%s [-u] [date]\n", argv[0]); 77 return 1; 78 } 79 80 int hasfmt = argc == optind + 1 && argv[optind][0] == '+'; 81 if(optind == argc || hasfmt) { 82 char buf[2000]; 83 time(&t); 84 if (useutc) { 85 gmtime_r(&t, &tm); 86 strftime(strbuf, sizeof(strbuf), 87 (hasfmt ? argv[optind] + 1 : "%a %b %e %H:%M:%S GMT %Y"), 88 &tm); 89 } else { 90 localtime_r(&t, &tm); 91 strftime(strbuf, sizeof(strbuf), 92 (hasfmt ? argv[optind] + 1 : "%a %b %e %H:%M:%S %Z %Y"), 93 &tm); 94 } 95 printf("%s\n", strbuf); 96 } 97 else if(optind + 1 == argc) { 98 #if 0 99 struct tm *tmptr; 100 tmptr = getdate(argv[optind]); 101 if(tmptr == NULL) { 102 fprintf(stderr,"getdate_r failed\n"); 103 return 1; 104 } 105 tm = *tmptr; 106 #if 0 107 if(getdate_r(argv[optind], &tm) < 0) { 108 fprintf(stderr,"getdate_r failed %s\n", strerror(errno)); 109 return 1; 110 } 111 #endif 112 #endif 113 //strptime(argv[optind], NULL, &tm); 114 //tv.tv_sec = mktime(&tm); 115 //tv.tv_usec = 0; 116 strtotimeval(argv[optind], &tv); 117 printf("time %s -> %d.%d\n", argv[optind], tv.tv_sec, tv.tv_usec); 118 fd = open("/dev/alarm", O_RDWR); 119 ts.tv_sec = tv.tv_sec; 120 ts.tv_nsec = tv.tv_usec * 1000; 121 res = ioctl(fd, ANDROID_ALARM_SET_RTC, &ts); 122 //res = settimeofday(&tv, NULL); 123 if(res < 0) { 124 fprintf(stderr,"settimeofday failed %s\n", strerror(errno)); 125 return 1; 126 } 127 } 128 else { 129 fprintf(stderr,"%s [-s 20070325.123456] [-u] [date]\n", argv[0]); 130 return 1; 131 } 132 133 return 0; 134 } 135
