sbin/dump/unctime.c

   1 /*      $NetBSD: unctime.c,v 1.14 2003/04/02 10:39:25 fvdl Exp $        */
   2
   3 /*-
   4  * Copyright (c) 1980, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "@(#)unctime.c   8.2 (Berkeley) 6/14/94";
  36 #else
  37 __RCSID("$NetBSD: unctime.c,v 1.14 2003/04/02 10:39:25 fvdl Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <sys/param.h>
  42 #include <ufs/ufs/dinode.h>
  43 #include <time.h>
  44 #include "dump.h"
  45
  46 /*
  47  * Convert a ctime(3) format string into a system format date.
  48  * Return the date thus calculated.
  49  *
  50  * Return -1 if the string is not in ctime format.
  51  */
  52
  53 time_t
  54 unctime(char *str)
  55 {
  56         struct tm then;
  57
  58         str = strptime(str, "%a %b %e %H:%M:%S %Y", &then);
  59         then.tm_isdst = -1;
  60         if (str == NULL || (*str != '\n' && *str != '\0'))
  61                 return (time_t) -1;
  62         return mktime(&then);
  63 }