1a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project/* $OpenBSD: strncat.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */ 2a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project/*- 3a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * Copyright (c) 1990 The Regents of the University of California. 4a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * All rights reserved. 5a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * 6a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * This code is derived from software contributed to Berkeley by 7a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * Chris Torek. 8a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * 9a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * Redistribution and use in source and binary forms, with or without 10a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * modification, are permitted provided that the following conditions 11a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * are met: 12a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 13a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * notice, this list of conditions and the following disclaimer. 14a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 15a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 16a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * documentation and/or other materials provided with the distribution. 17a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * 3. Neither the name of the University nor the names of its contributors 18a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * may be used to endorse or promote products derived from this software 19a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * without specific prior written permission. 20a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * 21a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * SUCH DAMAGE. 32a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project */ 33a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project 34a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project#include <string.h> 35a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project 36a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project/* 37a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * Concatenate src on the end of dst. At most strlen(dst)+n+1 bytes 38a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * are written at dst (at most n+1 bytes being appended). Return dst. 39a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project */ 40a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Projectchar * 41a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Projectstrncat(char *dst, const char *src, size_t n) 42a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project{ 43a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project if (n != 0) { 44a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project char *d = dst; 45a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project const char *s = src; 46a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project 47a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project while (*d != 0) 48a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project d++; 49a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project do { 50a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project if ((*d = *s++) == 0) 51a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project break; 52a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project d++; 53a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project } while (--n != 0); 54a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project *d = 0; 5530a419afc3cdb641e350c7cfde753877675958e0André Goddard Rosa } 56a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project return (dst); 57a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project} 58