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(LIBC_SCCS) && !defined(lint) 26 static const char rcsid[] = "$Id: nis.c,v 1.15 2001/05/29 05:49:11 marka Exp $"; 27 #endif 28 29 /* Imports */ 30 31 #include "port_before.h" 32 33 #ifdef WANT_IRS_NIS 34 35 #include <rpc/rpc.h> 36 #include <rpc/xdr.h> 37 #include <rpcsvc/yp_prot.h> 38 #include <rpcsvc/ypclnt.h> 39 40 #include <stdlib.h> 41 #include <string.h> 42 #include <errno.h> 43 44 #include <sys/types.h> 45 #include <netinet/in.h> 46 #include <arpa/nameser.h> 47 #include <resolv.h> 48 49 #include <isc/memcluster.h> 50 #include <irs.h> 51 52 #include "port_after.h" 53 54 #include "irs_p.h" 55 #include "hesiod.h" 56 #include "nis_p.h" 57 58 /* Forward */ 59 60 static void nis_close(struct irs_acc *); 61 static struct __res_state * nis_res_get(struct irs_acc *); 62 static void nis_res_set(struct irs_acc *, struct __res_state *, 63 void (*)(void *)); 64 65 /* Public */ 66 67 struct irs_acc * 68 irs_nis_acc(const char *options) { 69 struct nis_p *nis; 70 struct irs_acc *acc; 71 char *domain; 72 73 UNUSED(options); 74 75 if (yp_get_default_domain(&domain) != 0) 76 return (NULL); 77 if (!(nis = memget(sizeof *nis))) { 78 errno = ENOMEM; 79 return (NULL); 80 } 81 memset(nis, 0, sizeof *nis); 82 if (!(acc = memget(sizeof *acc))) { 83 memput(nis, sizeof *nis); 84 errno = ENOMEM; 85 return (NULL); 86 } 87 memset(acc, 0x5e, sizeof *acc); 88 acc->private = nis; 89 nis->domain = strdup(domain); 90 #ifdef WANT_IRS_GR 91 acc->gr_map = irs_nis_gr; 92 #else 93 acc->gr_map = NULL; 94 #endif 95 #ifdef WANT_IRS_PW 96 acc->pw_map = irs_nis_pw; 97 #else 98 acc->pw_map = NULL; 99 #endif 100 acc->sv_map = irs_nis_sv; 101 acc->pr_map = irs_nis_pr; 102 acc->ho_map = irs_nis_ho; 103 acc->nw_map = irs_nis_nw; 104 acc->ng_map = irs_nis_ng; 105 acc->res_get = nis_res_get; 106 acc->res_set = nis_res_set; 107 acc->close = nis_close; 108 return (acc); 109 } 110 111 /* Methods */ 112 113 static struct __res_state * 114 nis_res_get(struct irs_acc *this) { 115 struct nis_p *nis = (struct nis_p *)this->private; 116 117 if (nis->res == NULL) { 118 struct __res_state *res; 119 res = (struct __res_state *)malloc(sizeof *res); 120 if (res == NULL) 121 return (NULL); 122 memset(res, 0, sizeof *res); 123 nis_res_set(this, res, free); 124 } 125 126 if ((nis->res->options & RES_INIT) == 0 && 127 res_ninit(nis->res) < 0) 128 return (NULL); 129 130 return (nis->res); 131 } 132 133 static void 134 nis_res_set(struct irs_acc *this, struct __res_state *res, 135 void (*free_res)(void *)) { 136 struct nis_p *nis = (struct nis_p *)this->private; 137 138 if (nis->res && nis->free_res) { 139 res_nclose(nis->res); 140 (*nis->free_res)(nis->res); 141 } 142 143 nis->res = res; 144 nis->free_res = free_res; 145 } 146 147 static void 148 nis_close(struct irs_acc *this) { 149 struct nis_p *nis = (struct nis_p *)this->private; 150 151 if (nis->res && nis->free_res) 152 (*nis->free_res)(nis->res); 153 free(nis->domain); 154 memput(nis, sizeof *nis); 155 memput(this, sizeof *this); 156 } 157 158 #endif /*WANT_IRS_NIS*/ 159