/*	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/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF     	*/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/getdname.c	1.4.1.1"

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

		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This source code is unpublished proprietary information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[] = "@(#)getdname.c 1.4 89/04/01 Copyr 1989 Sun Micro";
#endif

/*
 * getdname.c
 *	Gets and sets the domain name of the system
 */

#include <stdio.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <sys/systeminfo.h>

#ifndef SI_SRPC_DOMAIN
#define use_file
#endif
#ifdef use_file
char DOMAIN[] = "/etc/domain";
#endif

static char *domainname;
int setdomainname();
extern char *calloc();
#ifdef use_file
static char *
_domainname()
{
	register char *d = domainname;

	if (d == 0) {
		d = (char *)calloc(1, 256);
		domainname = d;
	}
	return (d);
}
#endif

int 
getdomainname(name, namelen)
	char *name;
	int namelen;
{
#ifdef use_file
	char *line = _domainname();
	FILE *domain_fd;

	if (line == NULL)
		return(-1);
	if ((domain_fd = fopen(DOMAIN, "r")) == NULL)
		return (-1);
	
	if (fscanf(domain_fd, "%s", line) == NULL) {
		fclose(domain_fd);
		return (-1);
	}
	fclose(domain_fd);
	(void) strncpy(name, line, namelen);
	return (0);
#else
	int sysinfostatus=sysinfo(SI_SRPC_DOMAIN,name,namelen);
	if (sysinfostatus<0) return(-1);
	else return(0);
#endif
}

setdomainname(domain, len)
	char *domain;
	int len;
{
#ifdef use_file
	FILE *domain_fd;

	if ((domain_fd = fopen(DOMAIN, "rw")) == NULL)
		return (-1);
	if (fputs(domain, domain_fd) == NULL)
		return (-1);
	fclose(domain_fd);
	return(0);
#else
	int sysinfostatus=sysinfo(SI_SET_SRPC_DOMAIN, domain, len+1); /*add null*/
	if (sysinfostatus<0) return(-1);
	else return(0);
#endif
}
