#include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> struct { time_t when; const char *tz; const char *result; } tests[] = { { 909312849L, "AEST-10AEDST-11,M10.5.0,M3.5.0", "1998/10/25 21:54:09 dst=1 zone=AEDST" }, { 924864849L, "AEST-10AEDST-11,M10.5.0,M3.5.0", "1999/04/23 20:54:09 dst=0 zone=AEST" }, { 919973892L, "AEST-10AEDST-11,M10.5.0,M3.5.0", "1999/02/26 07:18:12 dst=1 zone=AEDST" }, { 909312849L, "EST+5EDT,M4.1.0/2,M10.5.0/2", "1998/10/25 05:54:09 dst=0 zone=EST" }, { 924864849L, "EST+5EDT,M4.1.0/2,M10.5.0/2", "1999/04/23 06:54:09 dst=1 zone=EDT" }, { 919973892L, "EST+5EDT,M4.1.0/2,M10.5.0/2", "1999/02/25 15:18:12 dst=0 zone=EST" }, }; int main (void) { int result = 0; size_t cnt; for (cnt = 0; cnt < sizeof (tests) / sizeof (tests[0]); ++cnt) { char buf[100]; struct tm *tmp; printf ("TZ = \"%s\", time = %ld => ", tests[cnt].tz, tests[cnt].when); fflush (stdout); setenv ("TZ", tests[cnt].tz, 1); tmp = localtime (&tests[cnt].when); snprintf (buf, sizeof (buf), "%04d/%02d/%02d %02d:%02d:%02d dst=%d zone=%s", tmp->tm_year + 1900, tmp->tm_mon + 1, tmp->tm_mday, tmp->tm_hour, tmp->tm_min, tmp->tm_sec, tmp->tm_isdst, tzname[tmp->tm_isdst ? 1 : 0]); fputs (buf, stdout); if (strcmp (buf, tests[cnt].result) == 0) puts (", OK"); else { result = 1; puts (", FAIL"); } } setenv ("TZ", "Universal", 1); localtime (&tests[0].when); printf ("TZ = \"Universal\" daylight %d tzname = { \"%s\", \"%s\" }", daylight, tzname[0], tzname[1]); if (! daylight) puts (", OK"); else { result = 1; puts (", FAIL"); } setenv ("TZ", "AEST-10AEDST-11,M10.5.0,M3.5.0", 1); tzset (); printf ("TZ = \"AEST-10AEDST-11,M10.5.0,M3.5.0\" daylight %d" " tzname = { \"%s\", \"%s\" }", daylight, tzname[0], tzname[1]); if (daylight && strcmp (tzname[0], "AEST") == 0 && strcmp (tzname[1], "AEDST") == 0) puts (", OK"); else { result = 1; puts (", FAIL"); } return result; }