Annotation of src/usr.bin/cvs/rcstime.c, Revision 1.5
1.5 ! ray 1: /* $OpenBSD: rcstime.c,v 1.4 2006/04/14 02:49:44 deraadt Exp $ */
1.1 xsa 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 "log.h"
30: #include "rcs.h"
31:
1.3 joris 32: void
33: rcs_set_tz(char *tz, struct rcs_delta *rdp, struct tm *tb)
1.1 xsa 34: {
35: int tzone;
1.5 ! ray 36: int pos;
1.1 xsa 37: char *h, *m;
1.3 joris 38: struct tm *ltb;
1.1 xsa 39: time_t now;
40:
41: if (!strcmp(tz, "LT")) {
42: now = mktime(&rdp->rd_date);
1.3 joris 43: ltb = localtime(&now);
44: ltb->tm_hour += ((int)ltb->tm_gmtoff/3600);
45: memcpy(tb, ltb, sizeof(struct tm));
1.1 xsa 46: } else {
1.5 ! ray 47: pos = 0;
1.1 xsa 48: switch (*tz) {
49: case '-':
1.3 joris 50: break;
1.4 deraadt 51: case '+':
1.3 joris 52: pos = 1;
1.1 xsa 53: break;
54: default:
55: fatal("%s: not a known time zone", tz);
56: }
57:
1.3 joris 58: h = (tz + 1);
1.1 xsa 59: if ((m = strrchr(tz, ':')) != NULL)
60: *(m++) = '\0';
61:
1.3 joris 62: memcpy(tb, &rdp->rd_date, sizeof(struct tm));
1.1 xsa 63:
64: tzone = atoi(h);
65: if ((tzone >= 24) && (tzone <= -24))
66: fatal("%s: not a known time zone", tz);
67:
1.3 joris 68: if (pos) {
69: tb->tm_hour += tzone;
70: tb->tm_gmtoff += (tzone * 3600);
71: } else {
72: tb->tm_hour -= tzone;
73: tb->tm_gmtoff -= (tzone * 3600);
74: }
75:
76: if ((tb->tm_hour >= 24) || (tb->tm_hour <= -24))
1.1 xsa 77: tb->tm_hour = 0;
78:
79: if (m != NULL) {
80: tzone = atoi(m);
81: if (tzone >= 60)
82: fatal("%s: not a known time zone", tz);
83:
84: if ((tb->tm_min + tzone) >= 60) {
85: tb->tm_hour++;
1.3 joris 86: tb->tm_min -= (60 - tzone);
1.1 xsa 87: } else
88: tb->tm_min += tzone;
89:
90: tb->tm_gmtoff += (tzone*60);
91: }
92: }
93: }