1 /* $NetBSD: pcap-null.c,v 1.6 2024/09/02 15:33:37 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 1.6 2024/09/02 15:33:37 christos Exp $"); 26 27 #include <config.h> 28 29 #include <string.h> 30 31 #include "pcap-int.h" 32 33 static char nosup[] = "live packet capture not supported on this system"; 34 35 pcap_t * 36 pcapint_create_interface(const char *device _U_, char *ebuf) 37 { 38 (void)pcapint_strlcpy(ebuf, nosup, PCAP_ERRBUF_SIZE); 39 return (NULL); 40 } 41 42 int 43 pcapint_platform_finddevs(pcap_if_list_t *devlistp _U_, char *errbuf _U_) 44 { 45 /* 46 * There are no interfaces on which we can capture. 47 */ 48 return (0); 49 } 50 51 #ifdef _WIN32 52 int 53 pcap_lookupnet(const char *device _U_, bpf_u_int32 *netp _U_, 54 bpf_u_int32 *maskp _U_, char *errbuf) 55 { 56 (void)pcapint_strlcpy(errbuf, nosup, PCAP_ERRBUF_SIZE); 57 return (-1); 58 } 59 #endif 60 61 /* 62 * Libpcap version string. 63 */ 64 const char * 65 pcap_lib_version(void) 66 { 67 return (PCAP_VERSION_STRING); 68 } 69