1 /*- 2 * Copyright (c) 1994, Garrett Wollman 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 #include "namespace.h" 30 #include <sys/param.h> 31 #include <sys/socket.h> 32 #include <netinet/in.h> 33 #include <arpa/inet.h> 34 #include <netdb.h> 35 #include <stdio.h> 36 #include <ctype.h> 37 #include <string.h> 38 #include <stdarg.h> 39 #include <nsswitch.h> 40 #include "un-namespace.h" 41 #include "netdb_private.h" 42 43 extern int _ht_getnetbyname(void *, void *, va_list); 44 extern int _dns_getnetbyname(void *, void *, va_list); 45 extern int _nis_getnetbyname(void *, void *, va_list); 46 extern int _ht_getnetbyaddr(void *, void *, va_list); 47 extern int _dns_getnetbyaddr(void *, void *, va_list); 48 extern int _nis_getnetbyaddr(void *, void *, va_list); 49 50 /* Network lookup order if nsswitch.conf is broken or nonexistant */ 51 static const ns_src default_src[] = { 52 { NSSRC_FILES, NS_SUCCESS }, 53 { NSSRC_DNS, NS_SUCCESS }, 54 { 0 } 55 }; 56 57 struct netent * 58 getnetbyname(const char *name) 59 { 60 struct netent *hp = 0; 61 int rval; 62 63 64 static const ns_dtab dtab[] = { 65 NS_FILES_CB(_ht_getnetbyname, NULL) 66 { NSSRC_DNS, _dns_getnetbyname, NULL }, 67 NS_NIS_CB(_nis_getnetbyname, NULL) /* force -DHESIOD */ 68 { 0 } 69 }; 70 71 rval = _nsdispatch((void *)&hp, dtab, NSDB_NETWORKS, "getnetbyname", 72 default_src, name); 73 74 if (rval != NS_SUCCESS) 75 return NULL; 76 else 77 return hp; 78 } 79 80 struct netent * 81 getnetbyaddr(u_long addr, int af) 82 { 83 struct netent *hp = 0; 84 int rval; 85 86 static const ns_dtab dtab[] = { 87 NS_FILES_CB(_ht_getnetbyaddr, NULL) 88 { NSSRC_DNS, _dns_getnetbyaddr, NULL }, 89 NS_NIS_CB(_nis_getnetbyaddr, NULL) /* force -DHESIOD */ 90 { 0 } 91 }; 92 93 rval = _nsdispatch((void *)&hp, dtab, NSDB_NETWORKS, "getnetbyaddr", 94 default_src, addr, af); 95 96 if (rval != NS_SUCCESS) 97 return NULL; 98 else 99 return hp; 100 } 101 102 void 103 setnetent(stayopen) 104 int stayopen; 105 { 106 _setnethtent(stayopen); 107 _setnetdnsent(stayopen); 108 } 109 110 void 111 endnetent() 112 { 113 _endnethtent(); 114 _endnetdnsent(); 115 } 116