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