usr/src/lib/libc/net/getservbyport.c

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)getservbyport.c     5.3 (Berkeley) %G%";
#endif LIBC_SCCS and not lint

#include <netdb.h>

extern int _serv_stayopen;

struct servent *
getservbyport(port, proto)
        int port;
        char *proto;
{
        register struct servent *p;

        setservent(_serv_stayopen);
        while (p = getservent()) {
                if (p->s_port != port)
                        continue;
                if (proto == 0 || strcmp(p->s_proto, proto) == 0)
                        break;
        }
        if (!_serv_stayopen)
                endservent();
        return (p);
}