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/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)getservbyport.c 8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <netdb.h>
#include <string.h>
#include "netdb_private.h"
int
getservbyport_r(int port, const char *proto, struct servent *sptr,
char *buffer, size_t buflen, struct servent **result)
{
struct servent se;
struct servent_data *sed;
int error;
if ((sed = __servent_data_init()) == NULL)
return (-1);
#ifdef YP
sed->yp_port = port;
sed->yp_proto = (char *)proto;
#endif
__setservent_p(sed->stayopen, sed);
while ((error = __getservent_p(&se, sed)) == 0) {
if (se.s_port != port)
continue;
if (proto == 0 || strcmp(se.s_proto, proto) == 0)
break;
}
if (!sed->stayopen)
__endservent_p(sed);
#ifdef YP
sed->yp_port = 0;
sed->yp_proto = NULL;
#endif
if (error != 0)
return (-1);
if (__copy_servent(&se, sptr, buffer, buflen) != 0)
return (-1);
*result = sptr;
return (0);
}
struct servent *
getservbyport(int port, const char *proto)
{
struct servdata *sd;
struct servent *rval;
if ((sd = __servdata_init()) == NULL)
return (NULL);
if (getservbyport_r(port, proto, &sd->serv, sd->data,
sizeof(sd->data), &rval) != 0)
return (NULL);
return (rval);
}
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