xref: /illumos-gate/usr/src/cmd/mail/cat.c (revision d48be21240dfd051b689384ce2b23479d757f2d8)
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     NAME
27 	cat - concatenate two strings
28 
29     SYNOPSIS
30 	void cat(char *to, char *from1, char *from2)
31 
32     DESCRIPTION
33 	cat() concatenates "from1" and "from2" to "to"
34 		to	-> destination string
35 		from1	-> source string
36 		from2	-> source string
37 */
38 #include "mail.h"
39 void
40 cat(to, from1, from2)
41 register char *to, *from1, *from2;
42 {
43 	for (; *from1;) *to++ = *from1++;
44 	for (; *from2;) *to++ = *from2++;
45 	*to = '\0';
46 }
47