GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/rcs/rcstime.c Lines: 0 36 0.0 %
Date: 2017-11-13 Branches: 0 21 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: rcstime.c,v 1.6 2016/08/26 09:02:54 guenther Exp $	*/
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/*
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 * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <err.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "rcs.h"
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void
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rcs_set_tz(char *tz, struct rcs_delta *rdp, struct tm *tb)
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{
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	int tzone;
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	int pos;
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	char *h, *m;
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	const char *errstr;
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	struct tm *ltb;
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	time_t now;
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	if (!strcmp(tz, "LT")) {
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		now = mktime(&rdp->rd_date);
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		ltb = localtime(&now);
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		ltb->tm_hour += ((int)ltb->tm_gmtoff/3600);
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		memcpy(tb, ltb, sizeof(*tb));
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	} else {
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		pos = 0;
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		switch (*tz) {
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		case '-':
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			break;
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		case '+':
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			pos = 1;
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			break;
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		default:
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			errx(1, "%s: not a known time zone", tz);
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		}
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		h = (tz + 1);
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		if ((m = strrchr(tz, ':')) != NULL)
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			*(m++) = '\0';
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		memcpy(tb, &rdp->rd_date, sizeof(*tb));
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		tzone = strtonum(h, -23, 23, &errstr);
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		if (errstr)
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			errx(1, "%s: not a known time zone", tz);
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		if (pos) {
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			tb->tm_hour += tzone;
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			tb->tm_gmtoff += (tzone * 3600);
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		} else {
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			tb->tm_hour -= tzone;
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			tb->tm_gmtoff -= (tzone * 3600);
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		}
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		if ((tb->tm_hour >= 24) || (tb->tm_hour <= -24))
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			tb->tm_hour = 0;
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		if (m != NULL) {
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			tzone = strtonum(m, 0, 59, &errstr);
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			if (errstr)
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				errx(1, "%s: not a known minute", m);
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			if ((tb->tm_min + tzone) >= 60) {
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				tb->tm_hour++;
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				tb->tm_min -= (60 - tzone);
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			} else
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				tb->tm_min += tzone;
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			tb->tm_gmtoff += (tzone*60);
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		}
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	}
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}