117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
/* $NetBSD: stime.c,v 1.7 2008/07/21 14:19:21 lukem Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1993
|
|
* The Regents of the University of California. 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. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 <sys/cdefs.h>
|
|
#ifndef lint
|
|
__COPYRIGHT("@(#) Copyright (c) 1993\
|
|
The Regents of the University of California. All rights reserved.");
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "from: @(#)touch.c 8.2 (Berkeley) 4/28/95";
|
|
#endif
|
|
__RCSID("$NetBSD: stime.c,v 1.7 2008/07/21 14:19:21 lukem Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include <err.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <tzfile.h>
|
|
|
|
#include "stime.h"
|
|
|
|
#define ATOI2(s) ((s) += 2, ((s)[-2] - '0') * 10 + ((s)[-1] - '0'))
|
|
|
|
time_t
|
|
stime(char *arg)
|
|
{
|
|
struct tm *t;
|
|
time_t tmptime;
|
|
int yearset;
|
|
char *p;
|
|
/* Start with the current time. */
|
|
if (time(&tmptime) == (time_t)-1)
|
|
err(EXIT_FAILURE, "time");
|
|
|
|
if ((t = localtime(&tmptime)) == NULL)
|
|
err(EXIT_FAILURE, "localtime");
|
|
/* [[CC]YY]MMDDhhmm[.SS] */
|
|
if ((p = strchr(arg, '.')) == NULL)
|
|
t->tm_sec = 0; /* Seconds defaults to 0. */
|
|
else {
|
|
if (strlen(p + 1) != 2)
|
|
goto terr;
|
|
*p++ = '\0';
|
|
t->tm_sec = ATOI2(p);
|
|
}
|
|
|
|
yearset = 0;
|
|
switch (strlen(arg)) {
|
|
case 12: /* CCYYMMDDhhmm */
|
|
t->tm_year = ATOI2(arg) * 100 - TM_YEAR_BASE;
|
|
yearset = 1;
|
|
/* FALLTHROUGH */
|
|
case 10: /* YYMMDDhhmm */
|
|
if (yearset) {
|
|
t->tm_year += ATOI2(arg);
|
|
} else {
|
|
yearset = ATOI2(arg);
|
|
t->tm_year = conv_2dig_year(yearset) - TM_YEAR_BASE;
|
|
}
|
|
/* FALLTHROUGH */
|
|
case 8: /* MMDDhhmm */
|
|
t->tm_mon = ATOI2(arg);
|
|
--t->tm_mon; /* Convert from 01-12 to 00-11 */
|
|
/* FALLTHROUGH */
|
|
case 6:
|
|
t->tm_mday = ATOI2(arg);
|
|
/* FALLTHROUGH */
|
|
case 4:
|
|
t->tm_hour = ATOI2(arg);
|
|
/* FALLTHROUGH */
|
|
case 2:
|
|
t->tm_min = ATOI2(arg);
|
|
break;
|
|
default:
|
|
goto terr;
|
|
}
|
|
|
|
t->tm_isdst = -1; /* Figure out DST. */
|
|
tmptime = mktime(t);
|
|
if (tmptime == (time_t)-1) {
|
|
terr: errx(EXIT_FAILURE,
|
|
"out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
|
|
}
|
|
return tmptime;
|
|
}
|