/*	Copyright (c) 1990 UNIX System Laboratories, Inc.	*/
/*	Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T	*/
/*	  All Rights Reserved  	*/

/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF     	*/
/*	UNIX System Laboratories, Inc.                     	*/
/*	The copyright notice above does not evidence any   	*/
/*	actual or intended publication of such source code.	*/


#ident	"@(#)ucbsendmail:src/ypdomain.c	1.1.1.1"

/*******************************************************************

		PROPRIETARY NOTICE (Combined)

This source code is unpublished proprietary information
constituting, or derived under license from AT&T's UNIX(r) System V.
In addition, portions of such source code were derived from Berkeley
4.3 BSD under license from the Regents of the University of
California.



		Copyright Notice 

Notice of copyright on this source code product does not indicate 
publication.

	(c) 1986,1987,1988,1989  Sun Microsystems, Inc
	(c) 1983,1984,1985,1986,1987,1988,1989  AT&T.
	          All rights reserved.
********************************************************************/ 

#if !defined(lint) && defined(SCCSIDS)
static char sccsid[] = "@(#)rpcdname.c 1.2 89/03/10 Copyr 1989 Sun Micro";
#endif

/*
 * rpcdname.c
 * Gets the default domain name
 */

extern char *malloc(), *strcpy();
static char *default_domain = 0;

static char *
get_default_domain()
{
	char temp[256];

	if (default_domain)
		return (default_domain);
	if (getdomainname(temp, sizeof(temp)) < 0)
		return (0);
	if ((int) strlen(temp) > 0) {
		default_domain = (char *)malloc((strlen(temp)+(unsigned)1));
		if (default_domain == 0)
			return (0);
		(void) strcpy(default_domain, temp);
		return (default_domain);
	}
	return (0);
}

/*
 * This is a wrapper for the system call getdomainname which returns a
 * ypclnt.h error code in the failure case.  It also checks to see that
 * the domain name is non-null, knowing that the null string is going to
 * get rejected elsewhere in the yp client package.
 */
int
yp_get_default_domain(domain)
	char **domain;
{
	if ((*domain = get_default_domain()) != 0)
		return (0);
	return (-1);
}
