xref: /csrg-svn/lib/libc/string/strncat.c (revision 41934)
1 /*
2  * Copyright (c) 1988 Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms are permitted
6  * provided that the above copyright notice and this paragraph are
7  * duplicated in all such forms and that any documentation,
8  * advertising materials, and other materials related to such
9  * distribution and use acknowledge that the software was developed
10  * by the University of California, Berkeley.  The name of the
11  * University may not be used to endorse or promote products derived
12  * from this software without specific prior written permission.
13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16  */
17 
18 #if defined(LIBC_SCCS) && !defined(lint)
19 static char sccsid[] = "@(#)strncat.c	5.4 (Berkeley) 05/15/90";
20 #endif /* LIBC_SCCS and not lint */
21 
22 char *
23 strncat(s, append, cnt)
24 	register char *s, *append;
25 	register int cnt;
26 {
27 	register char ch;
28 	char *save = s;
29 
30 	for (; *s; ++s);
31 	for (; cnt && (ch = *append++); --cnt)
32 		*s++ = ch;
33 	*s = '\0';
34 	return(save);
35 }
36