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author | Kiyoshi Aman <kiyoshi.aman+adelie@gmail.com> | 2019-02-01 22:55:37 +0000 |
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committer | Kiyoshi Aman <kiyoshi.aman+adelie@gmail.com> | 2019-02-03 18:22:05 -0600 |
commit | 5b57d28ffb6e1ef86b50f7d05d977826eae89bfe (patch) | |
tree | 154a22fe556b49e6927197336f8bf91b12eacd5e /usr.bin/at/stime.c | |
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initial population
Diffstat (limited to 'usr.bin/at/stime.c')
-rw-r--r-- | usr.bin/at/stime.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/usr.bin/at/stime.c b/usr.bin/at/stime.c new file mode 100644 index 0000000..567b848 --- /dev/null +++ b/usr.bin/at/stime.c @@ -0,0 +1,116 @@ +/* $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; +} |