1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved. 3*0Sstevel@tonic-gate * Use is subject to license terms. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate 6*0Sstevel@tonic-gate /* 7*0Sstevel@tonic-gate * Copyright (c) 1996-1999 by Internet Software Consortium. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * Permission to use, copy, modify, and distribute this software for any 10*0Sstevel@tonic-gate * purpose with or without fee is hereby granted, provided that the above 11*0Sstevel@tonic-gate * copyright notice and this permission notice appear in all copies. 12*0Sstevel@tonic-gate * 13*0Sstevel@tonic-gate * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS 14*0Sstevel@tonic-gate * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 15*0Sstevel@tonic-gate * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 16*0Sstevel@tonic-gate * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 17*0Sstevel@tonic-gate * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 18*0Sstevel@tonic-gate * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 19*0Sstevel@tonic-gate * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 20*0Sstevel@tonic-gate * SOFTWARE. 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate 23*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate #if !defined(LINT) && !defined(CODECENTER) 26*0Sstevel@tonic-gate static const char rcsid[] = "$Id: lcl.c,v 1.17 2001/05/29 05:49:02 marka Exp $"; 27*0Sstevel@tonic-gate #endif 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* Imports */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #include "port_before.h" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <stdlib.h> 34*0Sstevel@tonic-gate #include <errno.h> 35*0Sstevel@tonic-gate #include <string.h> 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #include <sys/types.h> 38*0Sstevel@tonic-gate #include <netinet/in.h> 39*0Sstevel@tonic-gate #include <arpa/nameser.h> 40*0Sstevel@tonic-gate #include <resolv.h> 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #include <isc/memcluster.h> 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate #include <irs.h> 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate #include "port_after.h" 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate #include "irs_p.h" 49*0Sstevel@tonic-gate #include "lcl_p.h" 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate /* Forward. */ 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate static void lcl_close(struct irs_acc *); 54*0Sstevel@tonic-gate static struct __res_state * lcl_res_get(struct irs_acc *); 55*0Sstevel@tonic-gate static void lcl_res_set(struct irs_acc *, struct __res_state *, 56*0Sstevel@tonic-gate void (*)(void *)); 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate /* Public */ 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate struct irs_acc * 61*0Sstevel@tonic-gate irs_lcl_acc(const char *options) { 62*0Sstevel@tonic-gate struct irs_acc *acc; 63*0Sstevel@tonic-gate struct lcl_p *lcl; 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate UNUSED(options); 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate if (!(acc = memget(sizeof *acc))) { 68*0Sstevel@tonic-gate errno = ENOMEM; 69*0Sstevel@tonic-gate return (NULL); 70*0Sstevel@tonic-gate } 71*0Sstevel@tonic-gate memset(acc, 0x5e, sizeof *acc); 72*0Sstevel@tonic-gate if (!(lcl = memget(sizeof *lcl))) { 73*0Sstevel@tonic-gate errno = ENOMEM; 74*0Sstevel@tonic-gate free(acc); 75*0Sstevel@tonic-gate return (NULL); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate memset(lcl, 0x5e, sizeof *lcl); 78*0Sstevel@tonic-gate lcl->res = NULL; 79*0Sstevel@tonic-gate lcl->free_res = NULL; 80*0Sstevel@tonic-gate acc->private = lcl; 81*0Sstevel@tonic-gate #ifdef WANT_IRS_GR 82*0Sstevel@tonic-gate acc->gr_map = irs_lcl_gr; 83*0Sstevel@tonic-gate #else 84*0Sstevel@tonic-gate acc->gr_map = NULL; 85*0Sstevel@tonic-gate #endif 86*0Sstevel@tonic-gate #ifdef WANT_IRS_PW 87*0Sstevel@tonic-gate acc->pw_map = irs_lcl_pw; 88*0Sstevel@tonic-gate #else 89*0Sstevel@tonic-gate acc->pw_map = NULL; 90*0Sstevel@tonic-gate #endif 91*0Sstevel@tonic-gate acc->sv_map = irs_lcl_sv; 92*0Sstevel@tonic-gate acc->pr_map = irs_lcl_pr; 93*0Sstevel@tonic-gate acc->ho_map = irs_lcl_ho; 94*0Sstevel@tonic-gate acc->nw_map = irs_lcl_nw; 95*0Sstevel@tonic-gate acc->ng_map = irs_lcl_ng; 96*0Sstevel@tonic-gate acc->res_get = lcl_res_get; 97*0Sstevel@tonic-gate acc->res_set = lcl_res_set; 98*0Sstevel@tonic-gate acc->close = lcl_close; 99*0Sstevel@tonic-gate return (acc); 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate /* Methods */ 103*0Sstevel@tonic-gate static struct __res_state * 104*0Sstevel@tonic-gate lcl_res_get(struct irs_acc *this) { 105*0Sstevel@tonic-gate struct lcl_p *lcl = (struct lcl_p *)this->private; 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate if (lcl->res == NULL) { 108*0Sstevel@tonic-gate struct __res_state *res; 109*0Sstevel@tonic-gate res = (struct __res_state *)malloc(sizeof *res); 110*0Sstevel@tonic-gate if (res == NULL) 111*0Sstevel@tonic-gate return (NULL); 112*0Sstevel@tonic-gate memset(res, 0, sizeof *res); 113*0Sstevel@tonic-gate lcl_res_set(this, res, free); 114*0Sstevel@tonic-gate } 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate if ((lcl->res->options & RES_INIT) == 0 && 117*0Sstevel@tonic-gate res_ninit(lcl->res) < 0) 118*0Sstevel@tonic-gate return (NULL); 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate return (lcl->res); 121*0Sstevel@tonic-gate } 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate static void 124*0Sstevel@tonic-gate lcl_res_set(struct irs_acc *this, struct __res_state *res, 125*0Sstevel@tonic-gate void (*free_res)(void *)) { 126*0Sstevel@tonic-gate struct lcl_p *lcl = (struct lcl_p *)this->private; 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate if (lcl->res && lcl->free_res) { 129*0Sstevel@tonic-gate res_nclose(lcl->res); 130*0Sstevel@tonic-gate (*lcl->free_res)(lcl->res); 131*0Sstevel@tonic-gate } 132*0Sstevel@tonic-gate 133*0Sstevel@tonic-gate lcl->res = res; 134*0Sstevel@tonic-gate lcl->free_res = free_res; 135*0Sstevel@tonic-gate } 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate static void 138*0Sstevel@tonic-gate lcl_close(struct irs_acc *this) { 139*0Sstevel@tonic-gate struct lcl_p *lcl = (struct lcl_p *)this->private; 140*0Sstevel@tonic-gate 141*0Sstevel@tonic-gate if (lcl) { 142*0Sstevel@tonic-gate if (lcl->free_res) 143*0Sstevel@tonic-gate (*lcl->free_res)(lcl->res); 144*0Sstevel@tonic-gate memput(lcl, sizeof *lcl); 145*0Sstevel@tonic-gate } 146*0Sstevel@tonic-gate memput(this, sizeof *this); 147*0Sstevel@tonic-gate } 148