1 d2c4ee9e 2003-11-24 devnull #include <stdlib.h> /* setenv etc. */
  2 d2c4ee9e 2003-11-24 devnull 
  3 fd04aace 2003-11-23 devnull #include <u.h>
  4 64bcfff3 2003-11-25 devnull #define NOPLAN9DEFINES
  5 fd04aace 2003-11-23 devnull #include <libc.h>
  6 64bcfff3 2003-11-25 devnull #include <time.h>
  7 fd04aace 2003-11-23 devnull 
  8 64bcfff3 2003-11-25 devnull #define _HAVETIMEGM 1
  9 64bcfff3 2003-11-25 devnull #define _HAVETMZONE 1
 10 64bcfff3 2003-11-25 devnull #define _HAVETMTZOFF 1
 11 fd04aace 2003-11-23 devnull 
 12 64bcfff3 2003-11-25 devnull #if defined(__linux__)
 13 64bcfff3 2003-11-25 devnull #	undef _HAVETMZONE
 14 64bcfff3 2003-11-25 devnull #	undef _HAVETMTZOFF
 15 fd04aace 2003-11-23 devnull 
 16 64bcfff3 2003-11-25 devnull #elif defined(__sun__)
 17 64bcfff3 2003-11-25 devnull #	undef _HAVETIMEGM
 18 64bcfff3 2003-11-25 devnull #	undef _HAVETMZONE
 19 64bcfff3 2003-11-25 devnull #	undef _HAVETMTZOFF
 20 64bcfff3 2003-11-25 devnull 
 21 64bcfff3 2003-11-25 devnull #endif
 22 64bcfff3 2003-11-25 devnull 
 23 fd04aace 2003-11-23 devnull static Tm bigtm;
 24 fd04aace 2003-11-23 devnull 
 25 fd04aace 2003-11-23 devnull static void
 26 fd04aace 2003-11-23 devnull tm2Tm(struct tm *tm, Tm *bigtm)
 27 fd04aace 2003-11-23 devnull {
 28 fd04aace 2003-11-23 devnull 	memset(bigtm, 0, sizeof *bigtm);
 29 fd04aace 2003-11-23 devnull 	bigtm->sec = tm->tm_sec;
 30 fd04aace 2003-11-23 devnull 	bigtm->min = tm->tm_min;
 31 fd04aace 2003-11-23 devnull 	bigtm->hour = tm->tm_hour;
 32 fd04aace 2003-11-23 devnull 	bigtm->mday = tm->tm_mday;
 33 fd04aace 2003-11-23 devnull 	bigtm->mon = tm->tm_mon;
 34 fd04aace 2003-11-23 devnull 	bigtm->year = tm->tm_year;
 35 fd04aace 2003-11-23 devnull 	bigtm->wday = tm->tm_wday;
 36 1c253ceb 2003-11-23 devnull #ifdef _HAVETMZONE
 37 fd04aace 2003-11-23 devnull 	strecpy(bigtm->zone, bigtm->zone+4, tm->tm_zone);
 38 1c253ceb 2003-11-23 devnull #endif
 39 1c253ceb 2003-11-23 devnull #ifdef _HAVETZOFF
 40 fd04aace 2003-11-23 devnull 	bigtm->tzoff = tm->tm_gmtoff;
 41 1c253ceb 2003-11-23 devnull #endif
 42 fd04aace 2003-11-23 devnull }
 43 fd04aace 2003-11-23 devnull 
 44 fd04aace 2003-11-23 devnull static void
 45 fd04aace 2003-11-23 devnull Tm2tm(Tm *bigtm, struct tm *tm)
 46 fd04aace 2003-11-23 devnull {
 47 fd04aace 2003-11-23 devnull 	memset(tm, 0, sizeof *tm);
 48 fd04aace 2003-11-23 devnull 	tm->tm_sec = bigtm->sec;
 49 fd04aace 2003-11-23 devnull 	tm->tm_min = bigtm->min;
 50 fd04aace 2003-11-23 devnull 	tm->tm_hour = bigtm->hour;
 51 fd04aace 2003-11-23 devnull 	tm->tm_mday = bigtm->mday;
 52 fd04aace 2003-11-23 devnull 	tm->tm_mon = bigtm->mon;
 53 fd04aace 2003-11-23 devnull 	tm->tm_year = bigtm->year;
 54 fd04aace 2003-11-23 devnull 	tm->tm_wday = bigtm->wday;
 55 1c253ceb 2003-11-23 devnull #ifdef _HAVETMZONE
 56 fd04aace 2003-11-23 devnull 	tm->tm_zone = bigtm->zone;
 57 1c253ceb 2003-11-23 devnull #endif
 58 1c253ceb 2003-11-23 devnull #ifdef _HAVETZOFF
 59 fd04aace 2003-11-23 devnull 	tm->tm_gmtoff = bigtm->tzoff;
 60 1c253ceb 2003-11-23 devnull #endif
 61 fd04aace 2003-11-23 devnull }
 62 fd04aace 2003-11-23 devnull 
 63 fd04aace 2003-11-23 devnull Tm*
 64 fd04aace 2003-11-23 devnull p9gmtime(long t)
 65 fd04aace 2003-11-23 devnull {
 66 fd04aace 2003-11-23 devnull 	struct tm tm;
 67 fd04aace 2003-11-23 devnull 
 68 fd04aace 2003-11-23 devnull 	tm = *gmtime(&t);
 69 fd04aace 2003-11-23 devnull 	tm2Tm(&tm, &bigtm);
 70 fd04aace 2003-11-23 devnull 	return &bigtm;
 71 fd04aace 2003-11-23 devnull }
 72 fd04aace 2003-11-23 devnull 
 73 fd04aace 2003-11-23 devnull Tm*
 74 fd04aace 2003-11-23 devnull p9localtime(long t)
 75 fd04aace 2003-11-23 devnull {
 76 fd04aace 2003-11-23 devnull 	struct tm tm;
 77 fd04aace 2003-11-23 devnull 
 78 fd04aace 2003-11-23 devnull 	tm = *localtime(&t);
 79 fd04aace 2003-11-23 devnull 	tm2Tm(&tm, &bigtm);
 80 fd04aace 2003-11-23 devnull 	return &bigtm;
 81 fd04aace 2003-11-23 devnull }
 82 fd04aace 2003-11-23 devnull 
 83 d2c4ee9e 2003-11-24 devnull #if !defined(_HAVETIMEGM)
 84 d2c4ee9e 2003-11-24 devnull static time_t
 85 1c253ceb 2003-11-23 devnull timegm(struct tm *tm)
 86 1c253ceb 2003-11-23 devnull {
 87 d2c4ee9e 2003-11-24 devnull 	time_t ret;
 88 d2c4ee9e 2003-11-24 devnull 	char *tz;
 89 64bcfff3 2003-11-25 devnull 	char *s;
 90 d2c4ee9e 2003-11-24 devnull 
 91 d2c4ee9e 2003-11-24 devnull 	tz = getenv("TZ");
 92 64bcfff3 2003-11-25 devnull 	putenv("TZ=");
 93 d2c4ee9e 2003-11-24 devnull 	tzset();
 94 d2c4ee9e 2003-11-24 devnull 	ret = mktime(tm);
 95 64bcfff3 2003-11-25 devnull 	if(tz){
 96 64bcfff3 2003-11-25 devnull 		s = smprint("TZ=%s", tz);
 97 64bcfff3 2003-11-25 devnull 		if(s)
 98 64bcfff3 2003-11-25 devnull 			putenv(s);
 99 64bcfff3 2003-11-25 devnull 	}
100 d2c4ee9e 2003-11-24 devnull 	return ret;
101 1c253ceb 2003-11-23 devnull }
102 1c253ceb 2003-11-23 devnull #endif
103 1c253ceb 2003-11-23 devnull 
104 fd04aace 2003-11-23 devnull long
105 fd04aace 2003-11-23 devnull p9tm2sec(Tm *bigtm)
106 fd04aace 2003-11-23 devnull {
107 fd04aace 2003-11-23 devnull 	struct tm tm;
108 fd04aace 2003-11-23 devnull 
109 fd04aace 2003-11-23 devnull 	Tm2tm(bigtm, &tm);
110 fd04aace 2003-11-23 devnull 	if(strcmp(bigtm->zone, "GMT") == 0 || strcmp(bigtm->zone, "UCT") == 0)
111 fd04aace 2003-11-23 devnull 		return timegm(&tm);
112 fd04aace 2003-11-23 devnull 	return mktime(&tm);	/* local time zone */
113 fd04aace 2003-11-23 devnull }
114 fd04aace 2003-11-23 devnull