122347Spst/* $NetBSD$ */ 222347Spst 322347Spst/* 429967Sache * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 559121Skris * Copyright (c) 1996-1999 by Internet Software Consortium. 622347Spst * 722347Spst * Permission to use, copy, modify, and distribute this software for any 822347Spst * purpose with or without fee is hereby granted, provided that the above 922347Spst * copyright notice and this permission notice appear in all copies. 1022347Spst * 1122347Spst * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 1222347Spst * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1322347Spst * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 1422347Spst * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1522347Spst * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1622347Spst * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 1722347Spst * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1859121Skris */ 1959121Skris 2029967Sache#if !defined(LINT) && !defined(CODECENTER) 2122347Spststatic const char rcsid[] = "Id: getgrent.c,v 1.5 2005/04/27 04:56:24 sra Exp "; 2222347Spst#endif 2322347Spst 2422347Spst/* Imports */ 2522347Spst 2622347Spst#include "port_before.h" 2722347Spst 2822347Spst#if !defined(WANT_IRS_GR) || defined(__BIND_NOSTATIC) 2922347Spststatic int __bind_irs_gr_unneeded; 3022347Spst#else 3122347Spst 3222347Spst#include <sys/types.h> 3322347Spst 3422347Spst#include <netinet/in.h> 3522347Spst#include <arpa/nameser.h> 3659121Skris 3759121Skris#include <errno.h> 3822347Spst#include <grp.h> 3922347Spst#include <resolv.h> 4029967Sache#include <stdio.h> 4122347Spst#include <string.h> 4222347Spst#include <unistd.h> 4322347Spst 4422347Spst#include <irs.h> 4522347Spst 4622347Spst#include "port_after.h" 4722347Spst 4822347Spst#include "irs_data.h" 4922347Spst 5022347Spst/* Forward */ 5122347Spst 5222347Spststatic struct net_data *init(void); 5322347Spstvoid endgrent(void); 5422347Spst 5522347Spst/* Public */ 5622347Spst 5722347Spststruct group * 5822347Spstgetgrent() { 5922347Spst struct net_data *net_data = init(); 6022347Spst 6122347Spst return (getgrent_p(net_data)); 6222347Spst} 6322347Spst 6422347Spststruct group * 6522347Spstgetgrnam(const char *name) { 6622347Spst struct net_data *net_data = init(); 6722347Spst 6822347Spst return (getgrnam_p(name, net_data)); 6922347Spst} 7022347Spst 7122347Spststruct group * 7222347Spstgetgrgid(gid_t gid) { 7322347Spst struct net_data *net_data = init(); 7422347Spst 7522347Spst return (getgrgid_p(gid, net_data)); 7629967Sache} 7722347Spst 7823540Spstint 7922347Spstsetgroupent(int stayopen) { 8022347Spst struct net_data *net_data = init(); 8122347Spst 8222347Spst return (setgroupent_p(stayopen, net_data)); 8322347Spst} 8423540Spst 8522347Spst#ifdef SETGRENT_VOID 8622347Spstvoid 8722347Spstsetgrent(void) { 8822347Spst struct net_data *net_data = init(); 8922347Spst 9022347Spst setgrent_p(net_data); 9122347Spst} 9223540Spst#else 9322347Spstint 9422347Spstsetgrent(void) { 9522347Spst struct net_data *net_data = init(); 9659300Skris 9759300Skris return (setgrent_p(net_data)); 9859300Skris} 9922347Spst#endif /* SETGRENT_VOID */ 10022347Spst 10123540Spstvoid 10222347Spstendgrent() { 10323540Spst struct net_data *net_data = init(); 10422347Spst 10529967Sache endgrent_p(net_data); 10622347Spst} 10722347Spst 10823540Spstint 10922347Spstgetgrouplist(GETGROUPLIST_ARGS) { 11029967Sache struct net_data *net_data = init(); 11129967Sache 11229967Sache return (getgrouplist_p(name, basegid, groups, ngroups, net_data)); 11329967Sache} 11429967Sache 11529967Sache/* Shared private. */ 11629967Sache 11729967Sachestruct group * 11823540Spstgetgrent_p(struct net_data *net_data) { 11923540Spst struct irs_gr *gr; 12022347Spst 12129967Sache if (!net_data || !(gr = net_data->gr)) 12222347Spst return (NULL); 12322347Spst net_data->gr_last = (*gr->next)(gr); 12429967Sache return (net_data->gr_last); 12529967Sache} 12629967Sache 12759121Skrisstruct group * 12829972Sachegetgrnam_p(const char *name, struct net_data *net_data) { 12929967Sache struct irs_gr *gr; 13059121Skris 13159121Skris if (!net_data || !(gr = net_data->gr)) 13259121Skris return (NULL); 13359121Skris if (net_data->gr_stayopen && net_data->gr_last && 13422347Spst !strcmp(net_data->gr_last->gr_name, name)) 135 return (net_data->gr_last); 136 net_data->gr_last = (*gr->byname)(gr, name); 137 if (!net_data->gr_stayopen) 138 endgrent(); 139 return (net_data->gr_last); 140} 141 142struct group * 143getgrgid_p(gid_t gid, struct net_data *net_data) { 144 struct irs_gr *gr; 145 146 if (!net_data || !(gr = net_data->gr)) 147 return (NULL); 148 if (net_data->gr_stayopen && net_data->gr_last && 149 (gid_t)net_data->gr_last->gr_gid == gid) 150 return (net_data->gr_last); 151 net_data->gr_last = (*gr->bygid)(gr, gid); 152 if (!net_data->gr_stayopen) 153 endgrent(); 154 return (net_data->gr_last); 155} 156 157int 158setgroupent_p(int stayopen, struct net_data *net_data) { 159 struct irs_gr *gr; 160 161 if (!net_data || !(gr = net_data->gr)) 162 return (0); 163 (*gr->rewind)(gr); 164 net_data->gr_stayopen = (stayopen != 0); 165 if (stayopen == 0) 166 net_data_minimize(net_data); 167 return (1); 168} 169 170#ifdef SETGRENT_VOID 171void 172setgrent_p(struct net_data *net_data) { 173 (void)setgroupent_p(0, net_data); 174} 175#else 176int 177setgrent_p(struct net_data *net_data) { 178 return (setgroupent_p(0, net_data)); 179} 180#endif /* SETGRENT_VOID */ 181 182void 183endgrent_p(struct net_data *net_data) { 184 struct irs_gr *gr; 185 186 if ((net_data != NULL) && ((gr = net_data->gr) != NULL)) 187 (*gr->minimize)(gr); 188} 189 190int 191getgrouplist_p(const char *name, gid_t basegid, gid_t *groups, int *ngroups, 192 struct net_data *net_data) { 193 struct irs_gr *gr; 194 195 if (!net_data || !(gr = net_data->gr)) { 196 *ngroups = 0; 197 return (-1); 198 } 199 return ((*gr->list)(gr, name, basegid, groups, ngroups)); 200} 201 202/* Private */ 203 204static struct net_data * 205init() { 206 struct net_data *net_data; 207 208 if (!(net_data = net_data_init(NULL))) 209 goto error; 210 if (!net_data->gr) { 211 net_data->gr = (*net_data->irs->gr_map)(net_data->irs); 212 213 if (!net_data->gr || !net_data->res) { 214 error: 215 errno = EIO; 216 return (NULL); 217 } 218 (*net_data->gr->res_set)(net_data->gr, net_data->res, 219 NULL); 220 } 221 222 return (net_data); 223} 224 225#endif /* WANT_IRS_GR */ 226/*! \file */ 227