Annotation of src/usr.bin/rcs/rcstime.c, Revision 1.2
1.2 ! niallo 1: /* $OpenBSD: rcstime.c,v 1.1 2006/04/26 02:55:13 joris Exp $ */
1.1 joris 2: /*
3: * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
4: * All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: *
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. The name of the author may not be used to endorse or promote products
13: * derived from this software without specific prior written permission.
14: *
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
16: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
17: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
18: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: #include "includes.h"
28:
29: #include "rcs.h"
30:
31: void
32: rcs_set_tz(char *tz, struct rcs_delta *rdp, struct tm *tb)
33: {
34: int tzone;
35: int pos;
36: char *h, *m;
37: struct tm *ltb;
38: time_t now;
39:
40: if (!strcmp(tz, "LT")) {
41: now = mktime(&rdp->rd_date);
42: ltb = localtime(&now);
43: ltb->tm_hour += ((int)ltb->tm_gmtoff/3600);
1.2 ! niallo 44: memcpy(tb, ltb, sizeof(*tb));
1.1 joris 45: } else {
46: pos = 0;
47: switch (*tz) {
48: case '-':
49: break;
50: case '+':
51: pos = 1;
52: break;
53: default:
54: errx(1, "%s: not a known time zone", tz);
55: }
56:
57: h = (tz + 1);
58: if ((m = strrchr(tz, ':')) != NULL)
59: *(m++) = '\0';
60:
1.2 ! niallo 61: memcpy(tb, &rdp->rd_date, sizeof(*tb));
1.1 joris 62:
63: tzone = atoi(h);
64: if ((tzone >= 24) && (tzone <= -24))
65: errx(1, "%s: not a known time zone", tz);
66:
67: if (pos) {
68: tb->tm_hour += tzone;
69: tb->tm_gmtoff += (tzone * 3600);
70: } else {
71: tb->tm_hour -= tzone;
72: tb->tm_gmtoff -= (tzone * 3600);
73: }
74:
75: if ((tb->tm_hour >= 24) || (tb->tm_hour <= -24))
76: tb->tm_hour = 0;
77:
78: if (m != NULL) {
79: tzone = atoi(m);
80: if (tzone >= 60)
81: errx(1, "%s: not a known time zone", tz);
82:
83: if ((tb->tm_min + tzone) >= 60) {
84: tb->tm_hour++;
85: tb->tm_min -= (60 - tzone);
86: } else
87: tb->tm_min += tzone;
88:
89: tb->tm_gmtoff += (tzone*60);
90: }
91: }
92: }