1 /* $NetBSD: pcap-null.c,v 1.5 2019/10/01 16:02:12 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1995, 1996 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that: (1) source code distributions 9 * retain the above copyright notice and this paragraph in its entirety, (2) 10 * distributions including binary code include the above copyright notice and 11 * this paragraph in its entirety in the documentation or other materials 12 * provided with the distribution, and (3) all advertising materials mentioning 13 * features or use of this software display the following acknowledgement: 14 * ``This product includes software developed by the University of California, 15 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 16 * the University nor the names of its contributors may be used to endorse 17 * or promote products derived from this software without specific prior 18 * written permission. 19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 20 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 22 */ 23 24 #include <sys/cdefs.h> 25 __RCSID("$NetBSD: pcap-null.c,v 1.5 2019/10/01 16:02:12 christos Exp $"); 26 27 #ifdef HAVE_CONFIG_H 28 #include <config.h> 29 #endif 30 31 #include <string.h> 32 33 #include "pcap-int.h" 34 35 static char nosup[] = "live packet capture not supported on this system"; 36 37 pcap_t * 38 pcap_create_interface(const char *device _U_, char *ebuf) 39 { 40 (void)pcap_strlcpy(ebuf, nosup, PCAP_ERRBUF_SIZE); 41 return (NULL); 42 } 43 44 int 45 pcap_platform_finddevs(pcap_if_list_t *devlistp _U_, char *errbuf _U_) 46 { 47 /* 48 * There are no interfaces on which we can capture. 49 */ 50 return (0); 51 } 52 53 #ifdef _WIN32 54 int 55 pcap_lookupnet(const char *device _U_, bpf_u_int32 *netp _U_, 56 bpf_u_int32 *maskp _U_, char *errbuf) 57 { 58 (void)pcap_strlcpy(errbuf, nosup, PCAP_ERRBUF_SIZE); 59 return (-1); 60 } 61 #endif 62 63 /* 64 * Libpcap version string. 65 */ 66 const char * 67 pcap_lib_version(void) 68 { 69 return (PCAP_VERSION_STRING); 70 } 71