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misc.c revision 1.6 
      1 /*-
      2  * Copyright (c) 1991, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * Edward Sze-Tyan Wang.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of the University nor the names of its contributors
     17  *    may be used to endorse or promote products derived from this software
     18  *    without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30  * SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 #ifndef lint
     35 #if 0
     36 static char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 6/6/93";
     37 #endif
     38 __RCSID("$NetBSD: misc.c,v 1.6 2003/08/07 11:16:02 agc Exp $");
     39 #endif /* not lint */
     40 
     41 #include <sys/types.h>
     42 #include <sys/stat.h>
     43 #include <errno.h>
     44 #include <stdarg.h>
     45 #include <stdio.h>
     46 #include <stdlib.h>
     47 #include <string.h>
     48 #include <unistd.h>
     49 
     50 #include "extern.h"
     51 
     52 void
     53 ierr(void)
     54 {
     55 	err(0, "%s: %s", fname, strerror(errno));
     56 }
     57 
     58 void
     59 oerr(void)
     60 {
     61 	err(1, "stdout: %s", strerror(errno));
     62 }
     63 
     64 void
     65 err(int fatal, const char *fmt, ...)
     66 {
     67 	va_list ap;
     68 
     69 	va_start(ap, fmt);
     70 	(void)fprintf(stderr, "tail: ");
     71 	(void)vfprintf(stderr, fmt, ap);
     72 	va_end(ap);
     73 	(void)fprintf(stderr, "\n");
     74 	if (fatal)
     75 		exit(1);
     76 	rval = 1;
     77 }
     78