pcap-null.c
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上传日期:2021-02-23
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文件大小:2k
- /*
- * 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: /usr/local/cvs/nessus-libraries/libpcap-nessus/pcap-null.c,v 1.3 2003/02/06 20:28:09 renaud Exp $ (LBL)";
- #endif
- #include <sys/param.h> /* optionally get BSD define */
- #include <string.h>
- #include "gnuc.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)sprintf(p->errbuf, "pcap_stats: %s", nosup);
- return (-1);
- }
- int
- pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
- {
- (void)sprintf(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)strcpy(ebuf, nosup);
- return (NULL);
- }
- int
- pcap_setfilter(pcap_t *p, struct bpf_program *fp)
- {
- if (p->sf.rfile == NULL) {
- (void)sprintf(p->errbuf, "pcap_setfilter: %s", nosup);
- return (-1);
- }
- p->fcode = *fp;
- return (0);
- }