date and time created 90/05/15 14:01:13 by bostic

[unix-history] / usr / src / lib / libc / string / strncpy.c

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strncpy.c	5.4 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

char *
strncpy(to, from, cnt)
	register char *to, *from;
	register int cnt;
{
	char *save = to;

	for (; cnt && (*to = *from); --cnt, ++from, ++to)
		;
	if (cnt)
		bzero(to, cnt);

	return (save);
}