2 * Copyright (c) 1994, 1995, 1996
3 * The Regents of the University of California. All rights reserved.
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
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.
22 static const char rcsid[] =
23 "@(#) $Header: /tcpdump/master/libpcap/pcap-null.c,v 1.13 2000/10/28 00:01:29 guy Exp $ (LBL)";
30 #include <sys/param.h> /* optionally get BSD define */
34 #ifdef HAVE_OS_PROTO_H
40 static char nosup[] = "live packet capture not supported on this system";
43 pcap_stats(pcap_t *p, struct pcap_stat *ps)
45 (void)snprintf(p->errbuf, sizeof(p->errbuf), "pcap_stats: %s", nosup);
50 pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
52 (void)snprintf(p->errbuf, sizeof(p->errbuf), "pcap_read: %s", nosup);
57 pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
59 (void)strlcpy(ebuf, nosup, PCAP_ERRBUF_SIZE);
64 pcap_setfilter(pcap_t *p, struct bpf_program *fp)
66 if (p->sf.rfile == NULL) {
67 (void)snprintf(p->errbuf, sizeof(p->errbuf),
68 "pcap_setfilter: %s", nosup);
71 if (install_bpf_program(p, fp) < 0)