usr.sbin/tcpdump/tcpslice/util.c

   1 /*
   2  * Copyright (c) 1988-1990 The Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the University of California,
  13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  *
  21  * $FreeBSD: src/usr.sbin/tcpdump/tcpslice/util.c,v 1.3 1999/08/28 05:11:32 peter Exp $
  22  * $DragonFly: src/usr.sbin/tcpdump/tcpslice/util.c,v 1.4 2005/12/05 02:40:28 swildner Exp $
  23  */
  24
  25 #include "tcpslice.h"
  26
  27 /* VARARGS */
  28 void
  29 error(const char *fmt, ...)
  30 {
  31         va_list ap;
  32
  33         fprintf(stderr, "tcpslice: ");
  34 #if __STDC__
  35         va_start(ap, fmt);
  36 #else
  37         va_start(ap);
  38 #endif
  39         vfprintf(stderr, fmt, ap);
  40         va_end(ap);
  41         if (*fmt) {
  42                 fmt += strlen(fmt);
  43                 if (fmt[-1] != '\n')
  44                         fputc('\n', stderr);
  45         }
  46         exit(1);
  47         /* NOTREACHED */
  48 }