1 /* $NetBSD: getnetgrent.c,v 1.1.1.2 2012/09/09 16:07:55 christos Exp $ */ 2 3 /* 4 * Copyright (C) 2004, 2005, 2008 Internet Systems Consortium, Inc. ("ISC") 5 * Copyright (C) 1996-1999, 2001, 2003 Internet Software Consortium. 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 13 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #if defined(LIBC_SCCS) && !defined(lint) 21 static const char rcsid[] = "Id: getnetgrent.c,v 1.6 2008/11/14 02:36:51 marka Exp "; 22 #endif /* LIBC_SCCS and not lint */ 23 24 /* Imports */ 25 26 #include "port_before.h" 27 28 #if !defined(__BIND_NOSTATIC) 29 30 #include <sys/types.h> 31 32 #include <netinet/in.h> 33 #include <arpa/nameser.h> 34 35 #include <errno.h> 36 #include <resolv.h> 37 #include <stdio.h> 38 39 #include <irs.h> 40 41 #include "port_after.h" 42 43 #include "irs_data.h" 44 45 /* Forward */ 46 47 static struct net_data *init(void); 48 49 50 /* Public */ 51 52 #ifndef SETNETGRENT_ARGS 53 #define SETNETGRENT_ARGS const char *netgroup 54 #endif 55 void 56 setnetgrent(SETNETGRENT_ARGS) { 57 struct net_data *net_data = init(); 58 59 setnetgrent_p(netgroup, net_data); 60 } 61 62 void 63 endnetgrent(void) { 64 struct net_data *net_data = init(); 65 66 endnetgrent_p(net_data); 67 } 68 69 #ifndef INNETGR_ARGS 70 #define INNETGR_ARGS const char *netgroup, const char *host, \ 71 const char *user, const char *domain 72 #endif 73 int 74 innetgr(INNETGR_ARGS) { 75 struct net_data *net_data = init(); 76 77 return (innetgr_p(netgroup, host, user, domain, net_data)); 78 } 79 80 int 81 getnetgrent(NGR_R_CONST char **host, NGR_R_CONST char **user, 82 NGR_R_CONST char **domain) 83 { 84 struct net_data *net_data = init(); 85 const char *ch, *cu, *cd; 86 int ret; 87 88 ret = getnetgrent_p(&ch, &cu, &cd, net_data); 89 if (ret != 1) 90 return (ret); 91 92 DE_CONST(ch, *host); 93 DE_CONST(cu, *user); 94 DE_CONST(cd, *domain); 95 return (ret); 96 } 97 98 /* Shared private. */ 99 100 void 101 setnetgrent_p(const char *netgroup, struct net_data *net_data) { 102 struct irs_ng *ng; 103 104 if ((net_data != NULL) && ((ng = net_data->ng) != NULL)) 105 (*ng->rewind)(ng, netgroup); 106 } 107 108 void 109 endnetgrent_p(struct net_data *net_data) { 110 struct irs_ng *ng; 111 112 if (!net_data) 113 return; 114 if ((ng = net_data->ng) != NULL) 115 (*ng->close)(ng); 116 net_data->ng = NULL; 117 } 118 119 int 120 innetgr_p(const char *netgroup, const char *host, 121 const char *user, const char *domain, 122 struct net_data *net_data) { 123 struct irs_ng *ng; 124 125 if (!net_data || !(ng = net_data->ng)) 126 return (0); 127 return ((*ng->test)(ng, netgroup, host, user, domain)); 128 } 129 130 int 131 getnetgrent_p(const char **host, const char **user, const char **domain, 132 struct net_data *net_data ) { 133 struct irs_ng *ng; 134 135 if (!net_data || !(ng = net_data->ng)) 136 return (0); 137 return ((*ng->next)(ng, host, user, domain)); 138 } 139 140 /* Private */ 141 142 static struct net_data * 143 init(void) { 144 struct net_data *net_data; 145 146 if (!(net_data = net_data_init(NULL))) 147 goto error; 148 if (!net_data->ng) { 149 net_data->ng = (*net_data->irs->ng_map)(net_data->irs); 150 if (!net_data->ng) { 151 error: 152 errno = EIO; 153 return (NULL); 154 } 155 } 156 157 return (net_data); 158 } 159 160 #endif /*__BIND_NOSTATIC*/ 161 162 /*! \file */ 163