Annotation of src/usr.bin/rcs/rcstime.c, Revision 1.3
1.3 ! xsa 1: /* $OpenBSD: rcstime.c,v 1.2 2006/05/29 03:00:12 niallo 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:
1.3 ! xsa 27: #include <err.h>
! 28: #include <stdlib.h>
! 29: #include <string.h>
1.1 joris 30:
31: #include "rcs.h"
32:
33: void
34: rcs_set_tz(char *tz, struct rcs_delta *rdp, struct tm *tb)
35: {
36: int tzone;
37: int pos;
38: char *h, *m;
39: struct tm *ltb;
40: time_t now;
41:
42: if (!strcmp(tz, "LT")) {
43: now = mktime(&rdp->rd_date);
44: ltb = localtime(&now);
45: ltb->tm_hour += ((int)ltb->tm_gmtoff/3600);
1.2 niallo 46: memcpy(tb, ltb, sizeof(*tb));
1.1 joris 47: } else {
48: pos = 0;
49: switch (*tz) {
50: case '-':
51: break;
52: case '+':
53: pos = 1;
54: break;
55: default:
56: errx(1, "%s: not a known time zone", tz);
57: }
58:
59: h = (tz + 1);
60: if ((m = strrchr(tz, ':')) != NULL)
61: *(m++) = '\0';
62:
1.2 niallo 63: memcpy(tb, &rdp->rd_date, sizeof(*tb));
1.1 joris 64:
65: tzone = atoi(h);
66: if ((tzone >= 24) && (tzone <= -24))
67: errx(1, "%s: not a known time zone", tz);
68:
69: if (pos) {
70: tb->tm_hour += tzone;
71: tb->tm_gmtoff += (tzone * 3600);
72: } else {
73: tb->tm_hour -= tzone;
74: tb->tm_gmtoff -= (tzone * 3600);
75: }
76:
77: if ((tb->tm_hour >= 24) || (tb->tm_hour <= -24))
78: tb->tm_hour = 0;
79:
80: if (m != NULL) {
81: tzone = atoi(m);
82: if (tzone >= 60)
83: errx(1, "%s: not a known time zone", tz);
84:
85: if ((tb->tm_min + tzone) >= 60) {
86: tb->tm_hour++;
87: tb->tm_min -= (60 - tzone);
88: } else
89: tb->tm_min += tzone;
90:
91: tb->tm_gmtoff += (tzone*60);
92: }
93: }
94: }