1/* 2 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 3 * Copyright (c) 1996-1999 by Internet Software Consortium. 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 15 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18#if defined(LIBC_SCCS) && !defined(lint) 19static const char rcsid[] = "$Id: nis.c,v 1.3 2005/04/27 04:56:32 sra Exp $"; 20#endif 21 22/* Imports */ 23 24#include "port_before.h" 25 26#ifdef WANT_IRS_NIS 27 28#include <rpc/rpc.h> 29#include <rpc/xdr.h> 30#include <rpcsvc/yp_prot.h> 31#include <rpcsvc/ypclnt.h> 32 33#include <stdlib.h> 34#include <string.h> 35#include <errno.h> 36 37#include <sys/types.h> 38#include <netinet/in.h> 39#ifdef T_NULL 40#undef T_NULL /* Silence re-definition warning of T_NULL. */ 41#endif 42#include <arpa/nameser.h> 43#include <resolv.h> 44 45#include <isc/memcluster.h> 46#include <irs.h> 47 48#include "port_after.h" 49 50#include "irs_p.h" 51#include "hesiod.h" 52#include "nis_p.h" 53 54/* Forward */ 55 56static void nis_close(struct irs_acc *); 57static struct __res_state * nis_res_get(struct irs_acc *); 58static void nis_res_set(struct irs_acc *, struct __res_state *, 59 void (*)(void *)); 60 61/* Public */ 62 63struct irs_acc * 64irs_nis_acc(const char *options) { 65 struct nis_p *nis; 66 struct irs_acc *acc; 67 char *domain; 68 69 UNUSED(options); 70 71 if (yp_get_default_domain(&domain) != 0) 72 return (NULL); 73 if (!(nis = memget(sizeof *nis))) { 74 errno = ENOMEM; 75 return (NULL); 76 } 77 memset(nis, 0, sizeof *nis); 78 if (!(acc = memget(sizeof *acc))) { 79 memput(nis, sizeof *nis); 80 errno = ENOMEM; 81 return (NULL); 82 } 83 memset(acc, 0x5e, sizeof *acc); 84 acc->private = nis; 85 nis->domain = strdup(domain); 86#ifdef WANT_IRS_GR 87 acc->gr_map = irs_nis_gr; 88#else 89 acc->gr_map = NULL; 90#endif 91#ifdef WANT_IRS_PW 92 acc->pw_map = irs_nis_pw; 93#else 94 acc->pw_map = NULL; 95#endif 96 acc->sv_map = irs_nis_sv; 97 acc->pr_map = irs_nis_pr; 98 acc->ho_map = irs_nis_ho; 99 acc->nw_map = irs_nis_nw; 100 acc->ng_map = irs_nis_ng; 101 acc->res_get = nis_res_get; 102 acc->res_set = nis_res_set; 103 acc->close = nis_close; 104 return (acc); 105} 106 107/* Methods */ 108 109static struct __res_state * 110nis_res_get(struct irs_acc *this) { 111 struct nis_p *nis = (struct nis_p *)this->private; 112 113 if (nis->res == NULL) { 114 struct __res_state *res; 115 res = (struct __res_state *)malloc(sizeof *res); 116 if (res == NULL) 117 return (NULL); 118 memset(res, 0, sizeof *res); 119 nis_res_set(this, res, free); 120 } 121 122 if ((nis->res->options & RES_INIT) == 0 && 123 res_ninit(nis->res) < 0) 124 return (NULL); 125 126 return (nis->res); 127} 128 129static void 130nis_res_set(struct irs_acc *this, struct __res_state *res, 131 void (*free_res)(void *)) { 132 struct nis_p *nis = (struct nis_p *)this->private; 133 134 if (nis->res && nis->free_res) { 135 res_nclose(nis->res); 136 (*nis->free_res)(nis->res); 137 } 138 139 nis->res = res; 140 nis->free_res = free_res; 141} 142 143static void 144nis_close(struct irs_acc *this) { 145 struct nis_p *nis = (struct nis_p *)this->private; 146 147 if (nis->res && nis->free_res) 148 (*nis->free_res)(nis->res); 149 free(nis->domain); 150 memput(nis, sizeof *nis); 151 memput(this, sizeof *this); 152} 153 154#endif /*WANT_IRS_NIS*/ 155 156/*! \file */ 157