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/*
* Copyright (c) 1994, 1995, 1996
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /tcpdump/master/libpcap/pcap-null.c,v 1.13 2000-10-28 00:01:29 guy Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/param.h> /* optionally get BSD define */
#include <string.h>
#ifdef HAVE_OS_PROTO_H
#include "os-proto.h"
#endif
#include "pcap-int.h"
static char nosup[] = "live packet capture not supported on this system";
int
pcap_stats(pcap_t *p, struct pcap_stat *ps)
{
(void)snprintf(p->errbuf, sizeof(p->errbuf), "pcap_stats: %s", nosup);
return (-1);
}
int
pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
{
(void)snprintf(p->errbuf, sizeof(p->errbuf), "pcap_read: %s", nosup);
return (-1);
}
pcap_t *
pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
{
(void)strlcpy(ebuf, nosup, PCAP_ERRBUF_SIZE);
return (NULL);
}
int
pcap_setfilter(pcap_t *p, struct bpf_program *fp)
{
if (p->sf.rfile == NULL) {
(void)snprintf(p->errbuf, sizeof(p->errbuf),
"pcap_setfilter: %s", nosup);
return (-1);
}
if (install_bpf_program(p, fp) < 0)
return (-1);
return (0);
}
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