1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23/*	  All Rights Reserved  	*/
24
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI" 	/* SVr4.0 2.	*/
27#include "mail.h"
28/*
29	Generic open routine.
30	Exits on error with passed error value.
31	Returns file pointer on success.
32
33	Note: This should be used only for critical files
34	as it will terminate mail(1) on failure.
35*/
36FILE *
37doopen(file, type, errnum)
38char	*type, *file;
39{
40	static char pn[] = "doopen";
41	FILE *fptr;
42	struct stat st;
43
44	if ((stat(file, &st) < 0 && errno == EOVERFLOW) ||
45		(fptr = fopen(file, type)) == NULL) {
46		fprintf(stderr,
47			"%s: Can't open '%s' type: %s\n",program,file,type);
48		error = errnum;
49		sav_errno = errno;
50		Dout(pn, 0, "can't open '%s' type: %s\n",program,file,type);
51		Dout(pn, 0, "error set to %d\n", error);
52		done(0);
53	}
54	return(fptr);
55}
56