1 /* 2 * Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* 7 * Copyright (c) 1996,1999 by Internet Software Consortium. 8 * 9 * Permission to use, copy, modify, and distribute this software for any 10 * purpose with or without fee is hereby granted, provided that the above 11 * copyright notice and this permission notice appear in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS 14 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 16 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 17 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 18 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 19 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 20 * SOFTWARE. 21 */ 22 23 #pragma ident "%Z%%M% %I% %E% SMI" 24 25 #if !defined(LINT) && !defined(CODECENTER) 26 static const char rcsid[] = "$Id: getservent.c,v 1.17 2001/11/01 07:33:16 marka Exp $"; 27 #endif 28 29 /* Imports */ 30 31 #include "port_before.h" 32 33 #if !defined(__BIND_NOSTATIC) 34 35 #include <sys/types.h> 36 37 #include <netinet/in.h> 38 #include <arpa/nameser.h> 39 40 #include <errno.h> 41 #include <resolv.h> 42 #include <stdio.h> 43 #include <string.h> 44 45 #include <irs.h> 46 47 #include "port_after.h" 48 49 #include "irs_data.h" 50 51 /* Forward */ 52 53 static struct net_data *init(void); 54 55 /* Public */ 56 57 struct servent * 58 getservent(void) { 59 struct net_data *net_data = init(); 60 61 return (getservent_p(net_data)); 62 } 63 64 struct servent * 65 getservbyname(const char *name, const char *proto) { 66 struct net_data *net_data = init(); 67 68 return (getservbyname_p(name, proto, net_data)); 69 } 70 71 struct servent * 72 getservbyport(int port, const char *proto) { 73 struct net_data *net_data = init(); 74 75 return (getservbyport_p(port, proto, net_data)); 76 } 77 78 #ifdef ORIGINAL_ISC_CODE 79 void 80 #else 81 int 82 #endif 83 setservent(int stayopen) { 84 struct net_data *net_data = init(); 85 86 setservent_p(stayopen, net_data); 87 #ifdef ORIGINAL_ISC_CODE 88 #else 89 return (0); 90 #endif 91 } 92 93 #ifdef ORIGINAL_ISC_CODE 94 void 95 #else 96 int 97 #endif 98 endservent() { 99 struct net_data *net_data = init(); 100 101 endservent_p(net_data); 102 #ifdef ORIGINAL_ISC_CODE 103 #else 104 return (0); 105 #endif 106 } 107 108 /* Shared private. */ 109 110 struct servent * 111 getservent_p(struct net_data *net_data) { 112 struct irs_sv *sv; 113 114 if (!net_data || !(sv = net_data->sv)) 115 return (NULL); 116 net_data->sv_last = (*sv->next)(sv); 117 return (net_data->sv_last); 118 } 119 120 struct servent * 121 getservbyname_p(const char *name, const char *proto, 122 struct net_data *net_data) { 123 struct irs_sv *sv; 124 char **sap; 125 126 if (!net_data || !(sv = net_data->sv)) 127 return (NULL); 128 if (net_data->sv_stayopen && net_data->sv_last) 129 if (!proto || !strcmp(net_data->sv_last->s_proto, proto)) { 130 if (!strcmp(net_data->sv_last->s_name, name)) 131 return (net_data->sv_last); 132 for (sap = net_data->sv_last->s_aliases; 133 sap && *sap; sap++) 134 if (!strcmp(name, *sap)) 135 return (net_data->sv_last); 136 } 137 net_data->sv_last = (*sv->byname)(sv, name, proto); 138 if (!net_data->sv_stayopen) 139 endservent(); 140 return (net_data->sv_last); 141 } 142 143 struct servent * 144 getservbyport_p(int port, const char *proto, struct net_data *net_data) { 145 struct irs_sv *sv; 146 147 if (!net_data || !(sv = net_data->sv)) 148 return (NULL); 149 if (net_data->sv_stayopen && net_data->sv_last) 150 if (port == net_data->sv_last->s_port && 151 ( !proto || 152 !strcmp(net_data->sv_last->s_proto, proto))) 153 return (net_data->sv_last); 154 net_data->sv_last = (*sv->byport)(sv, port, proto); 155 return (net_data->sv_last); 156 } 157 158 void 159 setservent_p(int stayopen, struct net_data *net_data) { 160 struct irs_sv *sv; 161 162 if (!net_data || !(sv = net_data->sv)) 163 return; 164 (*sv->rewind)(sv); 165 net_data->sv_stayopen = (stayopen != 0); 166 if (stayopen == 0) 167 net_data_minimize(net_data); 168 } 169 170 void 171 endservent_p(struct net_data *net_data) { 172 struct irs_sv *sv; 173 174 if ((net_data != NULL) && ((sv = net_data->sv) != NULL)) 175 (*sv->minimize)(sv); 176 } 177 178 /* Private */ 179 180 static struct net_data * 181 init() { 182 struct net_data *net_data; 183 184 if (!(net_data = net_data_init(NULL))) 185 goto error; 186 if (!net_data->sv) { 187 net_data->sv = (*net_data->irs->sv_map)(net_data->irs); 188 189 if (!net_data->sv || !net_data->res) { 190 error: 191 errno = EIO; 192 return (NULL); 193 } 194 (*net_data->sv->res_set)(net_data->sv, net_data->res, NULL); 195 } 196 197 return (net_data); 198 } 199 200 #endif /*__BIND_NOSTATIC*/ 201