xref: /titanic_44/usr/src/cmd/mail/printhdr.c (revision 4bc0a2ef2b7ba50a7a717e7ddbf31472ad28e358)
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 
34 int
35 printhdr(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