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/* $OpenBSD: rcstime.c,v 1.2 2006/03/09 16:53:56 joris Exp $ */
/*
* Copyright (c) 2006 Joris Vink <joris@openbsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
#include "log.h"
#include "rcs.h"
struct tm *
rcs_set_tz(char *tz, struct rcs_delta *rdp)
{
int tzone;
char *h, *m;
struct tm *tb, ltb;
time_t now;
tb = &rdp->rd_date;
if (!strcmp(tz, "LT")) {
now = mktime(&rdp->rd_date);
tb = localtime(&now);
tb->tm_hour += ((int)tb->tm_gmtoff/3600);
} else {
switch (*tz) {
case '-':
case '+':
break;
default:
fatal("%s: not a known time zone", tz);
}
h = tz;
if ((m = strrchr(tz, ':')) != NULL)
*(m++) = '\0';
ltb = rdp->rd_date;
tb = <b;
tzone = atoi(h);
if ((tzone >= 24) && (tzone <= -24))
fatal("%s: not a known time zone", tz);
tb->tm_hour += tzone;
if ((tb->tm_hour >= 24) && (tb->tm_hour <= -24))
tb->tm_hour = 0;
tb->tm_gmtoff += (tzone*3600);
if (m != NULL) {
tzone = atoi(m);
if (tzone >= 60)
fatal("%s: not a known time zone", tz);
if ((tb->tm_min + tzone) >= 60) {
tb->tm_hour++;
tb->tm_min -= tzone;
} else
tb->tm_min += tzone;
tb->tm_gmtoff += (tzone*60);
}
}
return (tb);
}
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