17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*cb5caa98Sdjl * Common Development and Distribution License (the "License").
6*cb5caa98Sdjl * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate /*
22*cb5caa98Sdjl * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
237c478bd9Sstevel@tonic-gate * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
267c478bd9Sstevel@tonic-gate #include <ctype.h>
277c478bd9Sstevel@tonic-gate #include <sys/types.h>
287c478bd9Sstevel@tonic-gate #include <sys/socket.h>
297c478bd9Sstevel@tonic-gate #include <netinet/in.h>
307c478bd9Sstevel@tonic-gate #include <arpa/inet.h>
317c478bd9Sstevel@tonic-gate #include <netdb.h>
327c478bd9Sstevel@tonic-gate #include <stdlib.h>
337c478bd9Sstevel@tonic-gate #include <string.h>
347c478bd9Sstevel@tonic-gate #include <nss_dbdefs.h>
357c478bd9Sstevel@tonic-gate
367c478bd9Sstevel@tonic-gate
37*cb5caa98Sdjl int str2netent(const char *, int, void *, char *, int);
387c478bd9Sstevel@tonic-gate
397c478bd9Sstevel@tonic-gate static int net_stayopen;
407c478bd9Sstevel@tonic-gate /*
417c478bd9Sstevel@tonic-gate * Unsynchronized, but it affects only
427c478bd9Sstevel@tonic-gate * efficiency, not correctness
437c478bd9Sstevel@tonic-gate */
447c478bd9Sstevel@tonic-gate
457c478bd9Sstevel@tonic-gate static DEFINE_NSS_DB_ROOT(db_root);
467c478bd9Sstevel@tonic-gate static DEFINE_NSS_GETENT(context);
477c478bd9Sstevel@tonic-gate
48*cb5caa98Sdjl void
_nss_initf_net(nss_db_params_t * p)497c478bd9Sstevel@tonic-gate _nss_initf_net(nss_db_params_t *p)
507c478bd9Sstevel@tonic-gate {
517c478bd9Sstevel@tonic-gate p->name = NSS_DBNAM_NETWORKS;
527c478bd9Sstevel@tonic-gate p->default_config = NSS_DEFCONF_NETWORKS;
537c478bd9Sstevel@tonic-gate }
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate struct netent *
getnetbyname_r(const char * name,struct netent * result,char * buffer,int buflen)567c478bd9Sstevel@tonic-gate getnetbyname_r(const char *name, struct netent *result,
577c478bd9Sstevel@tonic-gate char *buffer, int buflen)
587c478bd9Sstevel@tonic-gate {
597c478bd9Sstevel@tonic-gate nss_XbyY_args_t arg;
607c478bd9Sstevel@tonic-gate nss_status_t res;
617c478bd9Sstevel@tonic-gate
62*cb5caa98Sdjl if (name == (const char *)NULL) {
63*cb5caa98Sdjl errno = ERANGE;
64*cb5caa98Sdjl return (NULL);
65*cb5caa98Sdjl }
667c478bd9Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2netent);
677c478bd9Sstevel@tonic-gate arg.key.name = name;
687c478bd9Sstevel@tonic-gate arg.stayopen = net_stayopen;
697c478bd9Sstevel@tonic-gate res = nss_search(&db_root, _nss_initf_net,
707c478bd9Sstevel@tonic-gate NSS_DBOP_NETWORKS_BYNAME, &arg);
717c478bd9Sstevel@tonic-gate arg.status = res;
727c478bd9Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg);
737c478bd9Sstevel@tonic-gate return ((struct netent *)arg.returnval);
747c478bd9Sstevel@tonic-gate }
757c478bd9Sstevel@tonic-gate
767c478bd9Sstevel@tonic-gate struct netent *
getnetbyaddr_r(long net,int type,struct netent * result,char * buffer,int buflen)777c478bd9Sstevel@tonic-gate getnetbyaddr_r(long net, int type, struct netent *result,
787c478bd9Sstevel@tonic-gate char *buffer, int buflen)
797c478bd9Sstevel@tonic-gate {
807c478bd9Sstevel@tonic-gate nss_XbyY_args_t arg;
817c478bd9Sstevel@tonic-gate nss_status_t res;
827c478bd9Sstevel@tonic-gate
837c478bd9Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2netent);
847c478bd9Sstevel@tonic-gate arg.key.netaddr.net = (uint32_t)net;
857c478bd9Sstevel@tonic-gate arg.key.netaddr.type = type;
867c478bd9Sstevel@tonic-gate arg.stayopen = net_stayopen;
877c478bd9Sstevel@tonic-gate res = nss_search(&db_root, _nss_initf_net,
887c478bd9Sstevel@tonic-gate NSS_DBOP_NETWORKS_BYADDR, &arg);
897c478bd9Sstevel@tonic-gate arg.status = res;
907c478bd9Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg);
917c478bd9Sstevel@tonic-gate return ((struct netent *)arg.returnval);
927c478bd9Sstevel@tonic-gate }
937c478bd9Sstevel@tonic-gate
947c478bd9Sstevel@tonic-gate int
setnetent(int stay)957c478bd9Sstevel@tonic-gate setnetent(int stay)
967c478bd9Sstevel@tonic-gate {
977c478bd9Sstevel@tonic-gate net_stayopen |= stay; /* === Or maybe just "=" ? */
987c478bd9Sstevel@tonic-gate nss_setent(&db_root, _nss_initf_net, &context);
997c478bd9Sstevel@tonic-gate return (0);
1007c478bd9Sstevel@tonic-gate }
1017c478bd9Sstevel@tonic-gate
1027c478bd9Sstevel@tonic-gate int
endnetent()1037c478bd9Sstevel@tonic-gate endnetent()
1047c478bd9Sstevel@tonic-gate {
1057c478bd9Sstevel@tonic-gate net_stayopen = 0;
1067c478bd9Sstevel@tonic-gate nss_endent(&db_root, _nss_initf_net, &context);
1077c478bd9Sstevel@tonic-gate nss_delete(&db_root);
1087c478bd9Sstevel@tonic-gate return (0);
1097c478bd9Sstevel@tonic-gate }
1107c478bd9Sstevel@tonic-gate
1117c478bd9Sstevel@tonic-gate struct netent *
getnetent_r(struct netent * result,char * buffer,int buflen)1127c478bd9Sstevel@tonic-gate getnetent_r(struct netent *result, char *buffer, int buflen)
1137c478bd9Sstevel@tonic-gate {
1147c478bd9Sstevel@tonic-gate nss_XbyY_args_t arg;
1157c478bd9Sstevel@tonic-gate nss_status_t res;
1167c478bd9Sstevel@tonic-gate
1177c478bd9Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2netent);
1187c478bd9Sstevel@tonic-gate /* No stayopen flag; of course you stay open for iteration */
1197c478bd9Sstevel@tonic-gate res = nss_getent(&db_root, _nss_initf_net, &context, &arg);
1207c478bd9Sstevel@tonic-gate arg.status = res;
1217c478bd9Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg);
1227c478bd9Sstevel@tonic-gate return ((struct netent *)arg.returnval);
1237c478bd9Sstevel@tonic-gate }
1247c478bd9Sstevel@tonic-gate
1257c478bd9Sstevel@tonic-gate /*
1267c478bd9Sstevel@tonic-gate * Return values: 0 = success, 1 = parse error, 2 = erange ...
1277c478bd9Sstevel@tonic-gate * The structure pointer passed in is a structure in the caller's space
1287c478bd9Sstevel@tonic-gate * wherein the field pointers would be set to areas in the buffer if
1297c478bd9Sstevel@tonic-gate * need be. instring and buffer should be separate areas.
1307c478bd9Sstevel@tonic-gate */
131*cb5caa98Sdjl int
str2netent(const char * instr,int lenstr,void * ent,char * buffer,int buflen)1327c478bd9Sstevel@tonic-gate str2netent(const char *instr, int lenstr,
1337c478bd9Sstevel@tonic-gate void *ent /* really (struct netnet *) */, char *buffer, int buflen)
1347c478bd9Sstevel@tonic-gate {
1357c478bd9Sstevel@tonic-gate struct netent *net = (struct netent *)ent;
1367c478bd9Sstevel@tonic-gate const char *p, *numstart, *limit, *namestart;
1377c478bd9Sstevel@tonic-gate int namelen = 0;
1387c478bd9Sstevel@tonic-gate ptrdiff_t numlen;
1397c478bd9Sstevel@tonic-gate char numbuf[16];
1407c478bd9Sstevel@tonic-gate
1417c478bd9Sstevel@tonic-gate if ((instr >= buffer && (buffer + buflen) > instr) ||
1427c478bd9Sstevel@tonic-gate (buffer >= instr && (instr + lenstr) > buffer)) {
1437c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE);
1447c478bd9Sstevel@tonic-gate }
1457c478bd9Sstevel@tonic-gate
1467c478bd9Sstevel@tonic-gate p = instr;
1477c478bd9Sstevel@tonic-gate limit = p + lenstr;
1487c478bd9Sstevel@tonic-gate
1497c478bd9Sstevel@tonic-gate while (p < limit && isspace(*p)) {
1507c478bd9Sstevel@tonic-gate p++;
1517c478bd9Sstevel@tonic-gate }
1527c478bd9Sstevel@tonic-gate namestart = p;
1537c478bd9Sstevel@tonic-gate while (p < limit && !isspace(*p)) {
1547c478bd9Sstevel@tonic-gate p++; /* Skip over the canonical name */
1557c478bd9Sstevel@tonic-gate }
1567c478bd9Sstevel@tonic-gate namelen = (int)(p - namestart);
1577c478bd9Sstevel@tonic-gate
1587c478bd9Sstevel@tonic-gate if (buflen <= namelen) { /* not enough buffer */
1597c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_ERANGE);
1607c478bd9Sstevel@tonic-gate }
1617c478bd9Sstevel@tonic-gate (void) memcpy(buffer, namestart, namelen);
1627c478bd9Sstevel@tonic-gate buffer[namelen] = '\0';
1637c478bd9Sstevel@tonic-gate net->n_name = buffer;
1647c478bd9Sstevel@tonic-gate
1657c478bd9Sstevel@tonic-gate while (p < limit && isspace(*p)) {
1667c478bd9Sstevel@tonic-gate p++;
1677c478bd9Sstevel@tonic-gate }
1687c478bd9Sstevel@tonic-gate if (p >= limit) {
1697c478bd9Sstevel@tonic-gate /* Syntax error -- no net number */
1707c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE);
1717c478bd9Sstevel@tonic-gate }
1727c478bd9Sstevel@tonic-gate numstart = p;
1737c478bd9Sstevel@tonic-gate do {
1747c478bd9Sstevel@tonic-gate p++; /* Find the end of the net number */
1757c478bd9Sstevel@tonic-gate } while (p < limit && !isspace(*p));
1767c478bd9Sstevel@tonic-gate numlen = p - numstart;
1777c478bd9Sstevel@tonic-gate if (numlen >= (ptrdiff_t)sizeof (numbuf)) {
1787c478bd9Sstevel@tonic-gate /* Syntax error -- supposed number is too long */
1797c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE);
1807c478bd9Sstevel@tonic-gate }
1817c478bd9Sstevel@tonic-gate (void) memcpy(numbuf, numstart, numlen);
1827c478bd9Sstevel@tonic-gate numbuf[numlen] = '\0';
1837c478bd9Sstevel@tonic-gate net->n_net = inet_network(numbuf);
1847c478bd9Sstevel@tonic-gate if (net->n_net == (in_addr_t)-1) {
1857c478bd9Sstevel@tonic-gate /* inet_network failed to parse the string */
1867c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE);
1877c478bd9Sstevel@tonic-gate }
1887c478bd9Sstevel@tonic-gate
1897c478bd9Sstevel@tonic-gate net->n_addrtype = AF_INET;
1907c478bd9Sstevel@tonic-gate
1917c478bd9Sstevel@tonic-gate while (p < limit && isspace(*p)) {
1927c478bd9Sstevel@tonic-gate p++;
1937c478bd9Sstevel@tonic-gate }
1947c478bd9Sstevel@tonic-gate /*
1957c478bd9Sstevel@tonic-gate * Although nss_files_XY_all calls us with # stripped,
1967c478bd9Sstevel@tonic-gate * we should be able to deal with it here in order to
1977c478bd9Sstevel@tonic-gate * be more useful.
1987c478bd9Sstevel@tonic-gate */
1997c478bd9Sstevel@tonic-gate if (p >= limit || *p == '#') { /* no aliases, no problem */
2007c478bd9Sstevel@tonic-gate char **ptr;
2017c478bd9Sstevel@tonic-gate
2027c478bd9Sstevel@tonic-gate ptr = (char **)ROUND_UP(buffer + namelen + 1,
2037c478bd9Sstevel@tonic-gate sizeof (char *));
2047c478bd9Sstevel@tonic-gate if ((char *)ptr >= buffer + buflen) {
2057c478bd9Sstevel@tonic-gate net->n_aliases = 0; /* hope they don't try to peek in */
2067c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_ERANGE);
2077c478bd9Sstevel@tonic-gate } else {
2087c478bd9Sstevel@tonic-gate *ptr = 0;
2097c478bd9Sstevel@tonic-gate net->n_aliases = ptr;
2107c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_SUCCESS);
2117c478bd9Sstevel@tonic-gate }
2127c478bd9Sstevel@tonic-gate }
2137c478bd9Sstevel@tonic-gate net->n_aliases = _nss_netdb_aliases(p, lenstr - (int)(p - instr),
2147c478bd9Sstevel@tonic-gate buffer + namelen + 1, buflen - namelen - 1);
2157c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_SUCCESS);
2167c478bd9Sstevel@tonic-gate }
217