/* ********************************************************************** * Copyright (C) 2007-2007, International Business Machines * Corporation and others. All Rights Reserved. ********************************************************************** * * File tzdate.c * * Author: Michael Ow * ********************************************************************** */ #include <stdlib.h> #include <stdio.h> #include <time.h> #include <string.h> #include "unicode/utypes.h" #include "unicode/ustring.h" #include "unicode/uclean.h" #include "unicode/ucnv.h" #include "unicode/udat.h" #include "unicode/ucal.h" #include "putilimp.h" #define SIZE 80 #define OFFSET_MONTH 1 int64_t getSystemCurrentTime(char* systime, int year, int month, int day, int hour, int minute, int useCurrentTime); void getICUCurrentTime(char* icutime, double timeToCheck); void printTime(char* systime, char* icutime); int main(int argc, char** argv) { char systime[SIZE]; char icutime[SIZE]; int year, month, day, hour, minute; int sysyear; int useCurrentTime; int64_t systemtime; sysyear = year = month = day = 0; if (argc <= 6) { fprintf(stderr, "Not enough arguments\n"); return -1; } year = atoi(argv[1]); month = atoi(argv[2]); day = atoi(argv[3]); hour = atoi(argv[4]); minute = atoi(argv[5]); useCurrentTime = atoi(argv[6]); /* format year for system time */ sysyear = year - 1900; systemtime = getSystemCurrentTime(systime, sysyear, month, day, hour, minute, useCurrentTime); getICUCurrentTime(icutime, systemtime * U_MILLIS_PER_SECOND); /* print out the times if failed */ if (strcmp(systime, icutime) != 0) { printf("Failed\n"); printTime(systime, icutime); } return 0; } void getICUCurrentTime(char* icutime, double timeToCheck) { UDateFormat *fmt; const UChar *tz = 0; UChar *s = 0; UDateFormatStyle style = UDAT_RELATIVE; UErrorCode status = U_ZERO_ERROR; int32_t len = 0; int i; fmt = udat_open(style, style, 0, tz, -1,NULL,0, &status); len = udat_format(fmt, timeToCheck, 0, len, 0, &status); if (status == U_BUFFER_OVERFLOW_ERROR) status = U_ZERO_ERROR; s = (UChar*) malloc(sizeof(UChar) * (len+1)); if(s == 0) goto finish; udat_format(fmt, timeToCheck, s, len + 1, 0, &status); if (U_FAILURE(status)) goto finish; /* +1 to NULL terminate */ for(i = 0; i < len+1; i++) { icutime[i] = (char)s[i]; } finish: udat_close(fmt); free(s); } int64_t getSystemCurrentTime(char* systime, int year, int month, int day, int hour, int minute, int useCurrentTime) { time_t now; struct tm ts; if (useCurrentTime){ time(&now); ts = *localtime(&now); } else { memset(&ts, 0, sizeof(ts)); ts.tm_year = year; ts.tm_mon = month - OFFSET_MONTH; ts.tm_mday = day; ts.tm_hour = hour; ts.tm_min = minute; now = mktime(&ts); ts = *localtime(&now); } /* Format the string */ strftime(systime, sizeof(char) * 80, "%Y%m%d %I:%M %p", &ts); return (double)now; } void printTime(char* systime, char* icutime) { printf("System Time: %s\n", systime); printf("ICU Time: %s\n", icutime); printf("STD=%s DST=%s OFFSET=%d\n", uprv_tzname(0), uprv_tzname(1), uprv_timezone()); }