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.
23*cb5caa98Sdjl * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
267c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
277c478bd9Sstevel@tonic-gate
287c478bd9Sstevel@tonic-gate #include <ctype.h>
297c478bd9Sstevel@tonic-gate #include <netdb.h>
307c478bd9Sstevel@tonic-gate #include <stdlib.h>
317c478bd9Sstevel@tonic-gate #include <string.h>
327c478bd9Sstevel@tonic-gate #include <nss_dbdefs.h>
337c478bd9Sstevel@tonic-gate
34*cb5caa98Sdjl int str2protoent(const char *, int, void *,
357c478bd9Sstevel@tonic-gate char *, int);
367c478bd9Sstevel@tonic-gate
377c478bd9Sstevel@tonic-gate static int proto_stayopen;
387c478bd9Sstevel@tonic-gate /*
397c478bd9Sstevel@tonic-gate * Unsynchronized, but it affects only
407c478bd9Sstevel@tonic-gate * efficiency, not correctness
417c478bd9Sstevel@tonic-gate */
427c478bd9Sstevel@tonic-gate
437c478bd9Sstevel@tonic-gate static DEFINE_NSS_DB_ROOT(db_root);
447c478bd9Sstevel@tonic-gate static DEFINE_NSS_GETENT(context);
457c478bd9Sstevel@tonic-gate
46*cb5caa98Sdjl void
_nss_initf_proto(nss_db_params_t * p)477c478bd9Sstevel@tonic-gate _nss_initf_proto(nss_db_params_t *p)
487c478bd9Sstevel@tonic-gate {
497c478bd9Sstevel@tonic-gate p->name = NSS_DBNAM_PROTOCOLS;
507c478bd9Sstevel@tonic-gate p->default_config = NSS_DEFCONF_PROTOCOLS;
517c478bd9Sstevel@tonic-gate }
527c478bd9Sstevel@tonic-gate
537c478bd9Sstevel@tonic-gate struct protoent *
getprotobyname_r(const char * name,struct protoent * result,char * buffer,int buflen)547c478bd9Sstevel@tonic-gate getprotobyname_r(const char *name, struct protoent *result,
557c478bd9Sstevel@tonic-gate char *buffer, int buflen)
567c478bd9Sstevel@tonic-gate {
577c478bd9Sstevel@tonic-gate nss_XbyY_args_t arg;
587c478bd9Sstevel@tonic-gate nss_status_t res;
597c478bd9Sstevel@tonic-gate
60*cb5caa98Sdjl if (name == (const char *)NULL) {
61*cb5caa98Sdjl errno = ERANGE;
62*cb5caa98Sdjl return (NULL);
63*cb5caa98Sdjl }
647c478bd9Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2protoent);
657c478bd9Sstevel@tonic-gate arg.key.name = name;
667c478bd9Sstevel@tonic-gate arg.stayopen = proto_stayopen;
677c478bd9Sstevel@tonic-gate res = nss_search(&db_root, _nss_initf_proto,
687c478bd9Sstevel@tonic-gate NSS_DBOP_PROTOCOLS_BYNAME, &arg);
697c478bd9Sstevel@tonic-gate arg.status = res;
707c478bd9Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg);
717c478bd9Sstevel@tonic-gate return ((struct protoent *)arg.returnval);
727c478bd9Sstevel@tonic-gate }
737c478bd9Sstevel@tonic-gate
747c478bd9Sstevel@tonic-gate struct protoent *
getprotobynumber_r(int proto,struct protoent * result,char * buffer,int buflen)757c478bd9Sstevel@tonic-gate getprotobynumber_r(int proto, struct protoent *result, char *buffer, int buflen)
767c478bd9Sstevel@tonic-gate {
777c478bd9Sstevel@tonic-gate nss_XbyY_args_t arg;
787c478bd9Sstevel@tonic-gate nss_status_t res;
797c478bd9Sstevel@tonic-gate
807c478bd9Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2protoent);
817c478bd9Sstevel@tonic-gate arg.key.number = proto;
827c478bd9Sstevel@tonic-gate arg.stayopen = proto_stayopen;
837c478bd9Sstevel@tonic-gate res = nss_search(&db_root, _nss_initf_proto,
847c478bd9Sstevel@tonic-gate NSS_DBOP_PROTOCOLS_BYNUMBER, &arg);
857c478bd9Sstevel@tonic-gate arg.status = res;
867c478bd9Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg);
877c478bd9Sstevel@tonic-gate return ((struct protoent *)arg.returnval);
887c478bd9Sstevel@tonic-gate }
897c478bd9Sstevel@tonic-gate
907c478bd9Sstevel@tonic-gate int
setprotoent(int stay)917c478bd9Sstevel@tonic-gate setprotoent(int stay)
927c478bd9Sstevel@tonic-gate {
937c478bd9Sstevel@tonic-gate proto_stayopen = stay;
947c478bd9Sstevel@tonic-gate nss_setent(&db_root, _nss_initf_proto, &context);
957c478bd9Sstevel@tonic-gate return (0);
967c478bd9Sstevel@tonic-gate }
977c478bd9Sstevel@tonic-gate
987c478bd9Sstevel@tonic-gate int
endprotoent()997c478bd9Sstevel@tonic-gate endprotoent()
1007c478bd9Sstevel@tonic-gate {
1017c478bd9Sstevel@tonic-gate proto_stayopen = 0;
1027c478bd9Sstevel@tonic-gate nss_endent(&db_root, _nss_initf_proto, &context);
1037c478bd9Sstevel@tonic-gate nss_delete(&db_root);
1047c478bd9Sstevel@tonic-gate return (0);
1057c478bd9Sstevel@tonic-gate }
1067c478bd9Sstevel@tonic-gate
1077c478bd9Sstevel@tonic-gate struct protoent *
getprotoent_r(struct protoent * result,char * buffer,int buflen)1087c478bd9Sstevel@tonic-gate getprotoent_r(struct protoent *result, char *buffer, int buflen)
1097c478bd9Sstevel@tonic-gate {
1107c478bd9Sstevel@tonic-gate nss_XbyY_args_t arg;
1117c478bd9Sstevel@tonic-gate nss_status_t res;
1127c478bd9Sstevel@tonic-gate
1137c478bd9Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2protoent);
1147c478bd9Sstevel@tonic-gate /* No stayopen flag; of course you stay open for iteration */
1157c478bd9Sstevel@tonic-gate res = nss_getent(&db_root, _nss_initf_proto, &context, &arg);
1167c478bd9Sstevel@tonic-gate arg.status = res;
1177c478bd9Sstevel@tonic-gate (void) NSS_XbyY_FINI(&arg);
1187c478bd9Sstevel@tonic-gate return ((struct protoent *)arg.returnval);
1197c478bd9Sstevel@tonic-gate }
1207c478bd9Sstevel@tonic-gate
1217c478bd9Sstevel@tonic-gate /*
1227c478bd9Sstevel@tonic-gate * Return values: 0 = success, 1 = parse error, 2 = erange ...
1237c478bd9Sstevel@tonic-gate * The structure pointer passed in is a structure in the caller's space
1247c478bd9Sstevel@tonic-gate * wherein the field pointers would be set to areas in the buffer if
1257c478bd9Sstevel@tonic-gate * need be. instring and buffer should be separate areas. Let's not
1267c478bd9Sstevel@tonic-gate * fight over crumbs.
1277c478bd9Sstevel@tonic-gate */
128*cb5caa98Sdjl int
str2protoent(const char * instr,int lenstr,void * ent,char * buffer,int buflen)1297c478bd9Sstevel@tonic-gate str2protoent(const char *instr, int lenstr,
1307c478bd9Sstevel@tonic-gate void *ent /* it is really (struct protoent *) */,
1317c478bd9Sstevel@tonic-gate char *buffer, int buflen)
1327c478bd9Sstevel@tonic-gate {
1337c478bd9Sstevel@tonic-gate struct protoent *proto = (struct protoent *)ent;
1347c478bd9Sstevel@tonic-gate const char *p, *numstart, *namestart, *limit;
1357c478bd9Sstevel@tonic-gate int numlen, namelen = 0;
1367c478bd9Sstevel@tonic-gate char numbuf[16];
1377c478bd9Sstevel@tonic-gate char *numend;
1387c478bd9Sstevel@tonic-gate
1397c478bd9Sstevel@tonic-gate if ((instr >= buffer && (buffer + buflen) > instr) ||
1407c478bd9Sstevel@tonic-gate (buffer >= instr && (instr + lenstr) > buffer)) {
1417c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE);
1427c478bd9Sstevel@tonic-gate }
1437c478bd9Sstevel@tonic-gate
1447c478bd9Sstevel@tonic-gate p = instr;
1457c478bd9Sstevel@tonic-gate limit = p + lenstr;
1467c478bd9Sstevel@tonic-gate
1477c478bd9Sstevel@tonic-gate while (p < limit && isspace(*p)) {
1487c478bd9Sstevel@tonic-gate p++;
1497c478bd9Sstevel@tonic-gate }
1507c478bd9Sstevel@tonic-gate namestart = p;
1517c478bd9Sstevel@tonic-gate while (p < limit && !isspace(*p)) {
1527c478bd9Sstevel@tonic-gate p++; /* Skip over the canonical name */
1537c478bd9Sstevel@tonic-gate }
1547c478bd9Sstevel@tonic-gate namelen = (int)(p - namestart);
1557c478bd9Sstevel@tonic-gate
1567c478bd9Sstevel@tonic-gate if (buflen <= namelen) { /* not enough buffer */
1577c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_ERANGE);
1587c478bd9Sstevel@tonic-gate }
1597c478bd9Sstevel@tonic-gate (void) memcpy(buffer, namestart, namelen);
1607c478bd9Sstevel@tonic-gate buffer[namelen] = '\0';
1617c478bd9Sstevel@tonic-gate proto->p_name = buffer;
1627c478bd9Sstevel@tonic-gate
1637c478bd9Sstevel@tonic-gate while (p < limit && isspace(*p)) {
1647c478bd9Sstevel@tonic-gate p++;
1657c478bd9Sstevel@tonic-gate }
1667c478bd9Sstevel@tonic-gate if (p >= limit) {
1677c478bd9Sstevel@tonic-gate /* Syntax error -- no proto number */
1687c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE);
1697c478bd9Sstevel@tonic-gate }
1707c478bd9Sstevel@tonic-gate numstart = p;
1717c478bd9Sstevel@tonic-gate do {
1727c478bd9Sstevel@tonic-gate p++; /* Find the end of the proto number */
1737c478bd9Sstevel@tonic-gate } while (p < limit && !isspace(*p));
1747c478bd9Sstevel@tonic-gate numlen = (int)(p - numstart);
1757c478bd9Sstevel@tonic-gate if (numlen >= (int)sizeof (numbuf)) {
1767c478bd9Sstevel@tonic-gate /* Syntax error -- supposed number is too long */
1777c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE);
1787c478bd9Sstevel@tonic-gate }
1797c478bd9Sstevel@tonic-gate (void) memcpy(numbuf, numstart, (size_t)numlen);
1807c478bd9Sstevel@tonic-gate numbuf[numlen] = '\0';
1817c478bd9Sstevel@tonic-gate proto->p_proto = (int)strtol(numbuf, &numend, 10);
1827c478bd9Sstevel@tonic-gate if (*numend != '\0') {
1837c478bd9Sstevel@tonic-gate /* Syntax error -- protocol number isn't a number */
1847c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_PARSE);
1857c478bd9Sstevel@tonic-gate }
1867c478bd9Sstevel@tonic-gate
1877c478bd9Sstevel@tonic-gate while (p < limit && isspace(*p)) {
1887c478bd9Sstevel@tonic-gate p++;
1897c478bd9Sstevel@tonic-gate }
1907c478bd9Sstevel@tonic-gate /*
1917c478bd9Sstevel@tonic-gate * Although nss_files_XY_all calls us with # stripped,
1927c478bd9Sstevel@tonic-gate * we should be able to deal with it here in order to
1937c478bd9Sstevel@tonic-gate * be more useful.
1947c478bd9Sstevel@tonic-gate */
1957c478bd9Sstevel@tonic-gate if (p >= limit || *p == '#') { /* no aliases, no problem */
1967c478bd9Sstevel@tonic-gate char **ptr;
1977c478bd9Sstevel@tonic-gate
1987c478bd9Sstevel@tonic-gate ptr = (char **)ROUND_UP(buffer + namelen + 1,
1997c478bd9Sstevel@tonic-gate sizeof (char *));
2007c478bd9Sstevel@tonic-gate if ((char *)ptr >= buffer + buflen) {
2017c478bd9Sstevel@tonic-gate /* hope they don't try to peek in */
2027c478bd9Sstevel@tonic-gate proto->p_aliases = 0;
2037c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_ERANGE);
2047c478bd9Sstevel@tonic-gate } else {
2057c478bd9Sstevel@tonic-gate *ptr = 0;
2067c478bd9Sstevel@tonic-gate proto->p_aliases = ptr;
2077c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_SUCCESS);
2087c478bd9Sstevel@tonic-gate }
2097c478bd9Sstevel@tonic-gate }
2107c478bd9Sstevel@tonic-gate proto->p_aliases = _nss_netdb_aliases(p, lenstr - (int)(p - instr),
2117c478bd9Sstevel@tonic-gate buffer + namelen + 1, buflen - namelen - 1);
2127c478bd9Sstevel@tonic-gate return (NSS_STR_PARSE_SUCCESS);
2137c478bd9Sstevel@tonic-gate }
214