printhdr.c revision b7d62af5b42f0da2eb668e8d33d24d2f4fdd98a8
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/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include "mail.h"
33
34int
35printhdr(int type, int hdrtype, struct hdrs *hptr, FILE *fp)
36{
37	char		buf[1024];
38	int		n;
39	struct hdrs 	*contptr;
40
41
42	if (hptr == NULL)
43		return (0);
44	if (sel_disp(type, hdrtype, header[hdrtype].tag) < 0) {
45		return (0);
46	}
47
48	(void) snprintf(buf, sizeof (buf), "%s %s\n",
49	    header[hdrtype].tag, hptr->value);
50	n = strlen(buf);
51	if (fwrite(buf, 1, n, fp) != n)  {
52		sav_errno = errno;
53		return (-1);
54	}
55
56	/* Print continuation lines, if any... */
57	contptr = hptr;
58	while (contptr->cont != (struct hdrs *)NULL) {
59		contptr = contptr->cont;
60		(void) snprintf(buf, sizeof (buf), "%s\n", contptr->value);
61		n = strlen(buf);
62		if (fwrite(buf, 1, n, fp) != n)  {
63			sav_errno = errno;
64			return (-1);
65		}
66	}
67	return (0);
68}
69