Home | History | Annotate | Line # | Download | only in 4.1
ftime.c revision 1.7 
      1 /*
      2  * Copyright (c) 1994 Christopher G. Demetriou
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *      This product includes software developed by Christopher G. Demetriou.
     16  * 4. The name of the author may not be used to endorse or promote products
     17  *    derived from this software without specific prior written permission
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 #ifndef lint
     33 __RCSID("$NetBSD: ftime.c,v 1.7 1999/09/16 11:45:46 lukem Exp $");
     34 #endif /* not lint */
     35 
     36 #include <sys/types.h>
     37 #include <sys/time.h>
     38 #include <sys/timeb.h>
     39 
     40 #include <assert.h>
     41 #include <errno.h>
     42 
     43 int
     44 ftime(tbp)
     45         struct timeb *tbp;
     46 {
     47         struct timezone tz;
     48         struct timeval t;
     49 
     50 	_DIAGASSERT(tbp != 0);
     51 #ifdef _DIAGNOSTIC
     52 	if (tbp == 0) {
     53 		errno = EFAULT;
     54 		return (-1);
     55 	}
     56 #endif
     57 
     58         if (gettimeofday(&t, &tz) < 0)
     59                 return (-1);
     60         tbp->millitm = (unsigned short)(t.tv_usec / 1000);
     61         tbp->time = t.tv_sec;
     62         tbp->timezone = tz.tz_minuteswest;
     63         tbp->dstflag = tz.tz_dsttime;
     64 
     65 	return (0);
     66 }
     67