/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* lib/libsocket/inet/getservent_r.c
*
* This file defines and implements the re-entrant enumeration routines for
* services: setservent(), getservent_r(), and endservent(). They consult
* the switch policy directly and do not "share" their enumeration state
* nor the stayopen flag with the implentation of the more common
* getservbyname_r()/getservbyport_r(). The latter follows a tortuous
* route in order to be consistent with netdir_getbyYY() (see
* getservbyname_r.c and lib/libnsl/nss/netdir_inet.c).
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <nss_dbdefs.h>
/*
* str2servent is implemented in libnsl, libnsl/nss/netdir_inet.c, since
* the "engine" of the new gethost/getserv/netdir lives in libnsl.
*/
int str2servent(const char *, int, void *, char *, int);
/*
* Unsynchronized, but it affects only
* efficiency, not correctness.
*/
static int services_stayopen;
static DEFINE_NSS_DB_ROOT(db_root);
static DEFINE_NSS_GETENT(context);
void
_nss_initf_services(nss_db_params_t *p)
{
p->name = NSS_DBNAM_SERVICES;
p->default_config = NSS_DEFCONF_SERVICES;
}
int
setservent(int stay)
{
services_stayopen |= stay;
nss_setent(&db_root, _nss_initf_services, &context);
return (0);
}
int
endservent()
{
services_stayopen = 0;
nss_endent(&db_root, _nss_initf_services, &context);
nss_delete(&db_root);
return (0);
}
struct servent *
getservent_r(struct servent *result, char *buffer, int buflen)
{
nss_XbyY_args_t arg;
nss_status_t res;
NSS_XbyY_INIT(&arg, result, buffer, buflen, str2servent);
/*
* Setting proto to NULL here is a bit of a hack since we share
* the parsing code in the NIS+ backend with our getservbyYY()
* brethren who can search on 1-1/2 key. If they pass a NULL
* proto, the parsing code deals with it by picking the protocol
* from the first NIS+ matching object and combining all entries
* with "that" proto field. NIS+ is the only name service, so far,
* that can return multiple entries on a lookup.
*/
arg.key.serv.proto = NULL;
/* === No stayopen flag; of course you stay open for iteration */
res = nss_getent(&db_root, _nss_initf_services, &context, &arg);
arg.status = res;
return (struct servent *)NSS_XbyY_FINI(&arg);
}