The Tcpdump Group git mirrors - libpcap/blob - tests/reactivatetest.c

   1 /*
   2  * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
   3  *      The Regents of the University of California.  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
  22 #ifndef lint
  23 static const char copyright[] _U_ =
  24     "@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000\n\
  25 The Regents of the University of California.  All rights reserved.\n";
  26 #endif
  27
  28 #include <pcap.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <stdarg.h>
  33
  34 #include "pcap/funcattrs.h"
  35
  36 /* Forwards */
  37 static void error(const char *, ...);
  38
  39 int
  40 main(void)
  41 {
  42         char ebuf[PCAP_ERRBUF_SIZE];
  43         pcap_t *pd;
  44         int status = 0;
  45
  46         pd = pcap_open_live("lo0", 65535, 0, 1000, ebuf);
  47         if (pd == NULL) {
  48                 pd = pcap_open_live("lo", 65535, 0, 1000, ebuf);
  49                 if (pd == NULL) {
  50                         error("Neither lo0 nor lo could be opened: %s",
  51                             ebuf);
  52                         return 2;
  53                 }
  54         }
  55         status = pcap_activate(pd);
  56         if (status != PCAP_ERROR_ACTIVATED) {
  57                 if (status == 0)
  58                         error("pcap_activate() of opened pcap_t succeeded");
  59                 else if (status == PCAP_ERROR)
  60                         error("pcap_activate() of opened pcap_t failed with %s, not PCAP_ERROR_ACTIVATED",
  61                             pcap_geterr(pd));
  62                 else
  63                         error("pcap_activate() of opened pcap_t failed with %s, not PCAP_ERROR_ACTIVATED",
  64                             pcap_statustostr(status));
  65         }
  66         return 0;
  67 }
  68
  69 /* VARARGS */
  70 static void
  71 error(const char *fmt, ...)
  72 {
  73         va_list ap;
  74
  75         (void)fprintf(stderr, "reactivatetest: ");
  76         va_start(ap, fmt);
  77         (void)vfprintf(stderr, fmt, ap);
  78         va_end(ap);
  79         if (*fmt) {
  80                 fmt += strlen(fmt);
  81                 if (fmt[-1] != '\n')
  82                         (void)fputc('\n', stderr);
  83         }
  84         exit(1);
  85         /* NOTREACHED */
  86 }