1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1986-2002 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <ctype.h> 30*0Sstevel@tonic-gate #include <sys/types.h> 31*0Sstevel@tonic-gate #include <sys/socket.h> 32*0Sstevel@tonic-gate #include <netinet/in.h> 33*0Sstevel@tonic-gate #include <arpa/inet.h> 34*0Sstevel@tonic-gate #include <netdb.h> 35*0Sstevel@tonic-gate #include <stdlib.h> 36*0Sstevel@tonic-gate #include <string.h> 37*0Sstevel@tonic-gate #include <nss_dbdefs.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate static int str2netent(const char *, int, void *, char *, int); 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate static int net_stayopen; 43*0Sstevel@tonic-gate /* 44*0Sstevel@tonic-gate * Unsynchronized, but it affects only 45*0Sstevel@tonic-gate * efficiency, not correctness 46*0Sstevel@tonic-gate */ 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate static DEFINE_NSS_DB_ROOT(db_root); 49*0Sstevel@tonic-gate static DEFINE_NSS_GETENT(context); 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate static void 52*0Sstevel@tonic-gate _nss_initf_net(nss_db_params_t *p) 53*0Sstevel@tonic-gate { 54*0Sstevel@tonic-gate p->name = NSS_DBNAM_NETWORKS; 55*0Sstevel@tonic-gate p->default_config = NSS_DEFCONF_NETWORKS; 56*0Sstevel@tonic-gate } 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate struct netent * 59*0Sstevel@tonic-gate getnetbyname_r(const char *name, struct netent *result, 60*0Sstevel@tonic-gate char *buffer, int buflen) 61*0Sstevel@tonic-gate { 62*0Sstevel@tonic-gate nss_XbyY_args_t arg; 63*0Sstevel@tonic-gate nss_status_t res; 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2netent); 66*0Sstevel@tonic-gate arg.key.name = name; 67*0Sstevel@tonic-gate arg.stayopen = net_stayopen; 68*0Sstevel@tonic-gate res = nss_search(&db_root, _nss_initf_net, 69*0Sstevel@tonic-gate NSS_DBOP_NETWORKS_BYNAME, &arg); 70*0Sstevel@tonic-gate arg.status = res; 71*0Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg); 72*0Sstevel@tonic-gate return ((struct netent *)arg.returnval); 73*0Sstevel@tonic-gate } 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate struct netent * 76*0Sstevel@tonic-gate getnetbyaddr_r(long net, int type, struct netent *result, 77*0Sstevel@tonic-gate char *buffer, int buflen) 78*0Sstevel@tonic-gate { 79*0Sstevel@tonic-gate nss_XbyY_args_t arg; 80*0Sstevel@tonic-gate nss_status_t res; 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2netent); 83*0Sstevel@tonic-gate arg.key.netaddr.net = (uint32_t)net; 84*0Sstevel@tonic-gate arg.key.netaddr.type = type; 85*0Sstevel@tonic-gate arg.stayopen = net_stayopen; 86*0Sstevel@tonic-gate res = nss_search(&db_root, _nss_initf_net, 87*0Sstevel@tonic-gate NSS_DBOP_NETWORKS_BYADDR, &arg); 88*0Sstevel@tonic-gate arg.status = res; 89*0Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg); 90*0Sstevel@tonic-gate return ((struct netent *)arg.returnval); 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate int 94*0Sstevel@tonic-gate setnetent(int stay) 95*0Sstevel@tonic-gate { 96*0Sstevel@tonic-gate net_stayopen |= stay; /* === Or maybe just "=" ? */ 97*0Sstevel@tonic-gate nss_setent(&db_root, _nss_initf_net, &context); 98*0Sstevel@tonic-gate return (0); 99*0Sstevel@tonic-gate } 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate int 102*0Sstevel@tonic-gate endnetent() 103*0Sstevel@tonic-gate { 104*0Sstevel@tonic-gate net_stayopen = 0; 105*0Sstevel@tonic-gate nss_endent(&db_root, _nss_initf_net, &context); 106*0Sstevel@tonic-gate nss_delete(&db_root); 107*0Sstevel@tonic-gate return (0); 108*0Sstevel@tonic-gate } 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate struct netent * 111*0Sstevel@tonic-gate getnetent_r(struct netent *result, char *buffer, int buflen) 112*0Sstevel@tonic-gate { 113*0Sstevel@tonic-gate nss_XbyY_args_t arg; 114*0Sstevel@tonic-gate nss_status_t res; 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2netent); 117*0Sstevel@tonic-gate /* No stayopen flag; of course you stay open for iteration */ 118*0Sstevel@tonic-gate res = nss_getent(&db_root, _nss_initf_net, &context, &arg); 119*0Sstevel@tonic-gate arg.status = res; 120*0Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg); 121*0Sstevel@tonic-gate return ((struct netent *)arg.returnval); 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate /* 125*0Sstevel@tonic-gate * Return values: 0 = success, 1 = parse error, 2 = erange ... 126*0Sstevel@tonic-gate * The structure pointer passed in is a structure in the caller's space 127*0Sstevel@tonic-gate * wherein the field pointers would be set to areas in the buffer if 128*0Sstevel@tonic-gate * need be. instring and buffer should be separate areas. 129*0Sstevel@tonic-gate */ 130*0Sstevel@tonic-gate static int 131*0Sstevel@tonic-gate str2netent(const char *instr, int lenstr, 132*0Sstevel@tonic-gate void *ent /* really (struct netnet *) */, char *buffer, int buflen) 133*0Sstevel@tonic-gate { 134*0Sstevel@tonic-gate struct netent *net = (struct netent *)ent; 135*0Sstevel@tonic-gate const char *p, *numstart, *limit, *namestart; 136*0Sstevel@tonic-gate int namelen = 0; 137*0Sstevel@tonic-gate ptrdiff_t numlen; 138*0Sstevel@tonic-gate char numbuf[16]; 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate if ((instr >= buffer && (buffer + buflen) > instr) || 141*0Sstevel@tonic-gate (buffer >= instr && (instr + lenstr) > buffer)) { 142*0Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE); 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate p = instr; 146*0Sstevel@tonic-gate limit = p + lenstr; 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate while (p < limit && isspace(*p)) { 149*0Sstevel@tonic-gate p++; 150*0Sstevel@tonic-gate } 151*0Sstevel@tonic-gate namestart = p; 152*0Sstevel@tonic-gate while (p < limit && !isspace(*p)) { 153*0Sstevel@tonic-gate p++; /* Skip over the canonical name */ 154*0Sstevel@tonic-gate } 155*0Sstevel@tonic-gate namelen = (int)(p - namestart); 156*0Sstevel@tonic-gate 157*0Sstevel@tonic-gate if (buflen <= namelen) { /* not enough buffer */ 158*0Sstevel@tonic-gate return (NSS_STR_PARSE_ERANGE); 159*0Sstevel@tonic-gate } 160*0Sstevel@tonic-gate (void) memcpy(buffer, namestart, namelen); 161*0Sstevel@tonic-gate buffer[namelen] = '\0'; 162*0Sstevel@tonic-gate net->n_name = buffer; 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate while (p < limit && isspace(*p)) { 165*0Sstevel@tonic-gate p++; 166*0Sstevel@tonic-gate } 167*0Sstevel@tonic-gate if (p >= limit) { 168*0Sstevel@tonic-gate /* Syntax error -- no net number */ 169*0Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE); 170*0Sstevel@tonic-gate } 171*0Sstevel@tonic-gate numstart = p; 172*0Sstevel@tonic-gate do { 173*0Sstevel@tonic-gate p++; /* Find the end of the net number */ 174*0Sstevel@tonic-gate } while (p < limit && !isspace(*p)); 175*0Sstevel@tonic-gate numlen = p - numstart; 176*0Sstevel@tonic-gate if (numlen >= (ptrdiff_t)sizeof (numbuf)) { 177*0Sstevel@tonic-gate /* Syntax error -- supposed number is too long */ 178*0Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE); 179*0Sstevel@tonic-gate } 180*0Sstevel@tonic-gate (void) memcpy(numbuf, numstart, numlen); 181*0Sstevel@tonic-gate numbuf[numlen] = '\0'; 182*0Sstevel@tonic-gate net->n_net = inet_network(numbuf); 183*0Sstevel@tonic-gate if (net->n_net == (in_addr_t)-1) { 184*0Sstevel@tonic-gate /* inet_network failed to parse the string */ 185*0Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE); 186*0Sstevel@tonic-gate } 187*0Sstevel@tonic-gate 188*0Sstevel@tonic-gate net->n_addrtype = AF_INET; 189*0Sstevel@tonic-gate 190*0Sstevel@tonic-gate while (p < limit && isspace(*p)) { 191*0Sstevel@tonic-gate p++; 192*0Sstevel@tonic-gate } 193*0Sstevel@tonic-gate /* 194*0Sstevel@tonic-gate * Although nss_files_XY_all calls us with # stripped, 195*0Sstevel@tonic-gate * we should be able to deal with it here in order to 196*0Sstevel@tonic-gate * be more useful. 197*0Sstevel@tonic-gate */ 198*0Sstevel@tonic-gate if (p >= limit || *p == '#') { /* no aliases, no problem */ 199*0Sstevel@tonic-gate char **ptr; 200*0Sstevel@tonic-gate 201*0Sstevel@tonic-gate ptr = (char **)ROUND_UP(buffer + namelen + 1, 202*0Sstevel@tonic-gate sizeof (char *)); 203*0Sstevel@tonic-gate if ((char *)ptr >= buffer + buflen) { 204*0Sstevel@tonic-gate net->n_aliases = 0; /* hope they don't try to peek in */ 205*0Sstevel@tonic-gate return (NSS_STR_PARSE_ERANGE); 206*0Sstevel@tonic-gate } else { 207*0Sstevel@tonic-gate *ptr = 0; 208*0Sstevel@tonic-gate net->n_aliases = ptr; 209*0Sstevel@tonic-gate return (NSS_STR_PARSE_SUCCESS); 210*0Sstevel@tonic-gate } 211*0Sstevel@tonic-gate } 212*0Sstevel@tonic-gate net->n_aliases = _nss_netdb_aliases(p, lenstr - (int)(p - instr), 213*0Sstevel@tonic-gate buffer + namelen + 1, buflen - namelen - 1); 214*0Sstevel@tonic-gate return (NSS_STR_PARSE_SUCCESS); 215*0Sstevel@tonic-gate } 216