external/bsd/libpcap/dist/tests/reactivatetest.c

   1 /*      $NetBSD: reactivatetest.c,v 1.2 2014/11/19 19:33:31 christos Exp $      */
   2
   3 /*
   4  * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
   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: (1) source code distributions
   9  * retain the above copyright notice and this paragraph in its entirety, (2)
  10  * distributions including binary code include the above copyright notice and
  11  * this paragraph in its entirety in the documentation or other materials
  12  * provided with the distribution, and (3) all advertising materials mentioning
  13  * features or use of this software display the following acknowledgement:
  14  * ``This product includes software developed by the University of California,
  15  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  16  * the University nor the names of its contributors may be used to endorse
  17  * or promote products derived from this software without specific prior
  18  * written permission.
  19  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  20  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  22  */
  23
  24 #include <sys/cdefs.h>
  25 __RCSID("$NetBSD: reactivatetest.c,v 1.2 2014/11/19 19:33:31 christos Exp $");
  26
  27 #ifndef lint
  28 static const char copyright[] =
  29     "@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000\n\
  30 The Regents of the University of California.  All rights reserved.\n";
  31 #endif
  32
  33 #include <pcap.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <stdarg.h>
  38
  39 /* Forwards */
  40 static void error(const char *, ...);
  41
  42 int
  43 main(void)
  44 {
  45         char ebuf[PCAP_ERRBUF_SIZE];
  46         pcap_t *pd;
  47         int status = 0;
  48
  49         pd = pcap_open_live("lo0", 65535, 0, 1000, ebuf);
  50         if (pd == NULL) {
  51                 pd = pcap_open_live("lo", 65535, 0, 1000, ebuf);
  52                 if (pd == NULL) {
  53                         error("Neither lo0 nor lo could be opened: %s",
  54                             ebuf);
  55                         return 2;
  56                 }
  57         }
  58         status = pcap_activate(pd);
  59         if (status != PCAP_ERROR_ACTIVATED) {
  60                 if (status == 0)
  61                         error("pcap_activate() of opened pcap_t succeeded");
  62                 else if (status == PCAP_ERROR)
  63                         error("pcap_activate() of opened pcap_t failed with %s, not PCAP_ERROR_ACTIVATED",
  64                             pcap_geterr(pd));
  65                 else
  66                         error("pcap_activate() of opened pcap_t failed with %s, not PCAP_ERROR_ACTIVATED",
  67                             pcap_statustostr(status));
  68         }
  69         return 0;
  70 }
  71
  72 /* VARARGS */
  73 static void
  74 error(const char *fmt, ...)
  75 {
  76         va_list ap;
  77
  78         (void)fprintf(stderr, "reactivatetest: ");
  79         va_start(ap, fmt);
  80         (void)vfprintf(stderr, fmt, ap);
  81         va_end(ap);
  82         if (*fmt) {
  83                 fmt += strlen(fmt);
  84                 if (fmt[-1] != '\n')
  85                         (void)fputc('\n', stderr);
  86         }
  87         exit(1);
  88         /* NOTREACHED */
  89 }