1 /* 2 * Copyright (c) 1994, 1995 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 #ifndef lint 22 static char rcsid[] = 23 "@(#)$Header: pcap-null.c,v 1.5 95/10/07 03:05:43 leres Exp $ (LBL)"; 24 #endif 25 26 #include <sys/param.h> /* optionally get BSD define */ 27 28 #include <string.h> 29 30 #include "gnuc.h" 31 #ifdef HAVE_OS_PROTO_H 32 #include "os-proto.h" 33 #endif 34 35 #include "pcap-int.h" 36 37 static char nosup[] = "live packet capture not supported on this system"; 38 39 int 40 pcap_stats(pcap_t *p, struct pcap_stat *ps) 41 { 42 43 (void)sprintf(p->errbuf, "pcap_stats: %s", nosup); 44 return (-1); 45 } 46 47 int 48 pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user) 49 { 50 51 (void)sprintf(p->errbuf, "pcap_read: %s", nosup); 52 return (-1); 53 } 54 55 pcap_t * 56 pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf) 57 { 58 59 (void)strcpy(ebuf, nosup); 60 return (NULL); 61 } 62 63 int 64 pcap_setfilter(pcap_t *p, struct bpf_program *fp) 65 { 66 67 if (p->sf.rfile == NULL) { 68 (void)sprintf(p->errbuf, "pcap_setfilter: %s", nosup); 69 return (-1); 70 } 71 p->fcode = *fp; 72 return (0); 73 } 74