xref: /freebsd/lib/libc/string/strcat.c (revision 8a16b7a18f5d0b031f09832fd7752fba717e2a97)
1*8a16b7a1SPedro F. Giffuni /*-
2*8a16b7a1SPedro F. Giffuni  * SPDX-License-Identifier: BSD-3-Clause
3*8a16b7a1SPedro F. Giffuni  *
458f0484fSRodney W. Grimes  * Copyright (c) 1988, 1993
558f0484fSRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
658f0484fSRodney W. Grimes  *
758f0484fSRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
858f0484fSRodney W. Grimes  * modification, are permitted provided that the following conditions
958f0484fSRodney W. Grimes  * are met:
1058f0484fSRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
1158f0484fSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
1258f0484fSRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
1358f0484fSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
1458f0484fSRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
153fb3b97cSEd Maste  * 3. Neither the name of the University nor the names of its contributors
1658f0484fSRodney W. Grimes  *    may be used to endorse or promote products derived from this software
1758f0484fSRodney W. Grimes  *    without specific prior written permission.
1858f0484fSRodney W. Grimes  *
1958f0484fSRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2058f0484fSRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2158f0484fSRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2258f0484fSRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2358f0484fSRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2458f0484fSRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2558f0484fSRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2658f0484fSRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2758f0484fSRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2858f0484fSRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2958f0484fSRodney W. Grimes  * SUCH DAMAGE.
3058f0484fSRodney W. Grimes  */
3158f0484fSRodney W. Grimes 
3258f0484fSRodney W. Grimes #if defined(LIBC_SCCS) && !defined(lint)
3358f0484fSRodney W. Grimes static char sccsid[] = "@(#)strcat.c	8.1 (Berkeley) 6/4/93";
3458f0484fSRodney W. Grimes #endif /* LIBC_SCCS and not lint */
35de5fe5d5SDavid E. O'Brien #include <sys/cdefs.h>
36de5fe5d5SDavid E. O'Brien __FBSDID("$FreeBSD$");
3758f0484fSRodney W. Grimes 
3858f0484fSRodney W. Grimes #include <string.h>
3958f0484fSRodney W. Grimes 
4058f0484fSRodney W. Grimes char *
41ad906968SRobert Drehmel strcat(char * __restrict s, const char * __restrict append)
4258f0484fSRodney W. Grimes {
4358f0484fSRodney W. Grimes 	char *save = s;
4458f0484fSRodney W. Grimes 
4558f0484fSRodney W. Grimes 	for (; *s; ++s);
46dcb0ae4eSWarner Losh 	while ((*s++ = *append++));
4758f0484fSRodney W. Grimes 	return(save);
4858f0484fSRodney W. Grimes }
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