1 64bcfff3 2003-11-25 devnull #define NOPLAN9DEFINES
 2 5db07ba9 2006-03-03 devnull #include <u.h>
 3 fd04aace 2003-11-23 devnull #include <libc.h>
 4 5db07ba9 2006-03-03 devnull #include <stdlib.h> /* setenv etc. */
 5 64bcfff3 2003-11-25 devnull #include <time.h>
 6 fd04aace 2003-11-23 devnull 
 7 5db07ba9 2006-03-03 devnull static int didtz;
 8 5db07ba9 2006-03-03 devnull static int tzdelta;
 9 5db07ba9 2006-03-03 devnull static char tzone[4];
10 fd04aace 2003-11-23 devnull 
11 5db07ba9 2006-03-03 devnull static void
12 5db07ba9 2006-03-03 devnull dotz(void)
13 5db07ba9 2006-03-03 devnull {
14 5db07ba9 2006-03-03 devnull 	time_t t;
15 fd04aace 2003-11-23 devnull 
16 5db07ba9 2006-03-03 devnull 	if(didtz)
17 5db07ba9 2006-03-03 devnull 		return;
18 5db07ba9 2006-03-03 devnull 	t = time(0);
19 5db07ba9 2006-03-03 devnull 	tzdelta = t - mktime(gmtime(&t));
20 5db07ba9 2006-03-03 devnull 	strftime(tzone, sizeof tzone, "%Z", localtime(&t));
21 5db07ba9 2006-03-03 devnull }
22 64bcfff3 2003-11-25 devnull 
23 fd04aace 2003-11-23 devnull static void
24 5db07ba9 2006-03-03 devnull tm2Tm(struct tm *tm, Tm *bigtm, int gmt)
25 fd04aace 2003-11-23 devnull {
26 fd04aace 2003-11-23 devnull 	memset(bigtm, 0, sizeof *bigtm);
27 fd04aace 2003-11-23 devnull 	bigtm->sec = tm->tm_sec;
28 fd04aace 2003-11-23 devnull 	bigtm->min = tm->tm_min;
29 fd04aace 2003-11-23 devnull 	bigtm->hour = tm->tm_hour;
30 fd04aace 2003-11-23 devnull 	bigtm->mday = tm->tm_mday;
31 fd04aace 2003-11-23 devnull 	bigtm->mon = tm->tm_mon;
32 fd04aace 2003-11-23 devnull 	bigtm->year = tm->tm_year;
33 fd04aace 2003-11-23 devnull 	bigtm->wday = tm->tm_wday;
34 5db07ba9 2006-03-03 devnull 	if(gmt){
35 5db07ba9 2006-03-03 devnull 		strcpy(bigtm->zone, "GMT");
36 5db07ba9 2006-03-03 devnull 		bigtm->tzoff = 0;
37 5db07ba9 2006-03-03 devnull 	}else{
38 5db07ba9 2006-03-03 devnull 		dotz();
39 5db07ba9 2006-03-03 devnull 		strcpy(bigtm->zone, tzone);
40 5db07ba9 2006-03-03 devnull 		bigtm->tzoff = tzdelta;
41 8ad51794 2004-03-25 devnull 	}
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 fd04aace 2003-11-23 devnull }
56 fd04aace 2003-11-23 devnull 
57 fd04aace 2003-11-23 devnull Tm*
58 829e8223 2004-12-29 devnull p9gmtime(long x)
59 fd04aace 2003-11-23 devnull {
60 829e8223 2004-12-29 devnull 	time_t t;
61 fd04aace 2003-11-23 devnull 	struct tm tm;
62 5db07ba9 2006-03-03 devnull 	static Tm bigtm;
63 5db07ba9 2006-03-03 devnull 	
64 829e8223 2004-12-29 devnull 	t = (time_t)x;
65 fd04aace 2003-11-23 devnull 	tm = *gmtime(&t);
66 5db07ba9 2006-03-03 devnull 	tm2Tm(&tm, &bigtm, 1);
67 fd04aace 2003-11-23 devnull 	return &bigtm;
68 fd04aace 2003-11-23 devnull }
69 fd04aace 2003-11-23 devnull 
70 fd04aace 2003-11-23 devnull Tm*
71 829e8223 2004-12-29 devnull p9localtime(long x)
72 fd04aace 2003-11-23 devnull {
73 829e8223 2004-12-29 devnull 	time_t t;
74 fd04aace 2003-11-23 devnull 	struct tm tm;
75 5db07ba9 2006-03-03 devnull 	static Tm bigtm;
76 fd04aace 2003-11-23 devnull 
77 829e8223 2004-12-29 devnull 	t = (time_t)x;
78 fd04aace 2003-11-23 devnull 	tm = *localtime(&t);
79 5db07ba9 2006-03-03 devnull 	tm2Tm(&tm, &bigtm, 0);
80 fd04aace 2003-11-23 devnull 	return &bigtm;
81 fd04aace 2003-11-23 devnull }
82 fd04aace 2003-11-23 devnull 
83 fd04aace 2003-11-23 devnull long
84 fd04aace 2003-11-23 devnull p9tm2sec(Tm *bigtm)
85 fd04aace 2003-11-23 devnull {
86 5db07ba9 2006-03-03 devnull 	time_t t;
87 fd04aace 2003-11-23 devnull 	struct tm tm;
88 fd04aace 2003-11-23 devnull 
89 fd04aace 2003-11-23 devnull 	Tm2tm(bigtm, &tm);
90 5db07ba9 2006-03-03 devnull 	t = mktime(&tm);
91 5db07ba9 2006-03-03 devnull 	if(strcmp(bigtm->zone, "GMT") == 0 || strcmp(bigtm->zone, "UCT") == 0){
92 5db07ba9 2006-03-03 devnull 		dotz();
93 5db07ba9 2006-03-03 devnull 		t += tzdelta;
94 5db07ba9 2006-03-03 devnull 	}
95 5db07ba9 2006-03-03 devnull 	return t;
96 fd04aace 2003-11-23 devnull }
97 fd04aace 2003-11-23 devnull