1*a8565cf9Schristos /* $NetBSD: strcat.c,v 1.2 2007/06/04 18:19:27 christos Exp $ */ 237c9f0a6Schristos 337c9f0a6Schristos /* 437c9f0a6Schristos * Copyright (c) 1988, 1993 537c9f0a6Schristos * The Regents of the University of California. All rights reserved. 637c9f0a6Schristos * 737c9f0a6Schristos * Redistribution and use in source and binary forms, with or without 837c9f0a6Schristos * modification, are permitted provided that the following conditions 937c9f0a6Schristos * are met: 1037c9f0a6Schristos * 1. Redistributions of source code must retain the above copyright 1137c9f0a6Schristos * notice, this list of conditions and the following disclaimer. 1237c9f0a6Schristos * 2. Redistributions in binary form must reproduce the above copyright 1337c9f0a6Schristos * notice, this list of conditions and the following disclaimer in the 1437c9f0a6Schristos * documentation and/or other materials provided with the distribution. 1537c9f0a6Schristos * 3. Neither the name of the University nor the names of its contributors 1637c9f0a6Schristos * may be used to endorse or promote products derived from this software 1737c9f0a6Schristos * without specific prior written permission. 1837c9f0a6Schristos * 1937c9f0a6Schristos * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2037c9f0a6Schristos * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2137c9f0a6Schristos * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2237c9f0a6Schristos * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2337c9f0a6Schristos * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2437c9f0a6Schristos * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2537c9f0a6Schristos * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2637c9f0a6Schristos * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2737c9f0a6Schristos * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2837c9f0a6Schristos * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2937c9f0a6Schristos * SUCH DAMAGE. 3037c9f0a6Schristos */ 3137c9f0a6Schristos 3237c9f0a6Schristos #include <sys/cdefs.h> 3337c9f0a6Schristos #if defined(LIBC_SCCS) && !defined(lint) 3437c9f0a6Schristos #if 0 3537c9f0a6Schristos static char sccsid[] = "@(#)strcat.c 8.1 (Berkeley) 6/4/93"; 3637c9f0a6Schristos #else 37*a8565cf9Schristos __RCSID("$NetBSD: strcat.c,v 1.2 2007/06/04 18:19:27 christos Exp $"); 3837c9f0a6Schristos #endif 3937c9f0a6Schristos #endif /* LIBC_SCCS and not lint */ 4037c9f0a6Schristos 4137c9f0a6Schristos #if !defined(_KERNEL) && !defined(_STANDALONE) 4237c9f0a6Schristos #include <assert.h> 4337c9f0a6Schristos #include <string.h> 4437c9f0a6Schristos #else 4537c9f0a6Schristos #include <lib/libkern/libkern.h> 4637c9f0a6Schristos #endif 4737c9f0a6Schristos 48*a8565cf9Schristos #ifdef _FORTIFY_SOURCE 49*a8565cf9Schristos #undef strcat 50*a8565cf9Schristos #endif 51*a8565cf9Schristos 5237c9f0a6Schristos char * 53*a8565cf9Schristos strcat(char *s, const char *append) 5437c9f0a6Schristos { 5537c9f0a6Schristos char *t = s; 5637c9f0a6Schristos 5737c9f0a6Schristos _DIAGASSERT(t != NULL); 5837c9f0a6Schristos _DIAGASSERT(append != NULL); 5937c9f0a6Schristos 6037c9f0a6Schristos for (; *t; ++t) 6137c9f0a6Schristos ; 6237c9f0a6Schristos while ((*t++ = *append++) != '\0') 6337c9f0a6Schristos ; 6437c9f0a6Schristos return (s); 6537c9f0a6Schristos } 66