Ultrix-3.1/src/libc/net/getproto.c

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/**********************************************************************
 *   Copyright (c) Digital Equipment Corporation 1984, 1985, 1986.    *
 *   All Rights Reserved. 					      *
 *   Reference "/usr/src/COPYRIGHT" for applicable restrictions.      *
 **********************************************************************/

/*
 * SCCSID: @(#)getproto.c	3.0	4/22/86
 * Based on	getproto.c	4.2	82/10/05
 */

#include <netdb.h>

struct protoent *
getprotobynumber(proto)
	register int proto;
{
	register struct protoent *p;

	setprotoent(0);
	while (p = getprotoent())
		if (p->p_proto == proto)
			break;
	endprotoent();
	return (p);
}