strndup.c revision 178825
1215236Sdelphij/* 291913Sgreen * Copyright (c) 1995 - 1999 Kungliga Tekniska H�gskolan 386669Sgreen * (Royal Institute of Technology, Stockholm, Sweden). 4215236Sdelphij * All rights reserved. 5215236Sdelphij * 686669Sgreen * Redistribution and use in source and binary forms, with or without 7215236Sdelphij * modification, are permitted provided that the following conditions 8215236Sdelphij * are met: 9215236Sdelphij * 1086669Sgreen * 1. Redistributions of source code must retain the above copyright 11215236Sdelphij * notice, this list of conditions and the following disclaimer. 12215236Sdelphij * 13215236Sdelphij * 2. Redistributions in binary form must reproduce the above copyright 14215236Sdelphij * notice, this list of conditions and the following disclaimer in the 15215236Sdelphij * documentation and/or other materials provided with the distribution. 16215236Sdelphij * 17215236Sdelphij * 3. Neither the name of the Institute nor the names of its contributors 18215236Sdelphij * may be used to endorse or promote products derived from this software 19215236Sdelphij * without specific prior written permission. 20215236Sdelphij * 21215236Sdelphij * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 2286669Sgreen * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2386669Sgreen * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2486750Sfjoe * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 2586669Sgreen * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2686669Sgreen * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2786733Sgreen * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2886669Sgreen * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2986669Sgreen * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3086669Sgreen * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3186669Sgreen * SUCH DAMAGE. 3286669Sgreen */ 3386669Sgreen 3486669Sgreen#ifdef HAVE_CONFIG_H 3586669Sgreen#include <config.h> 3686669SgreenRCSID("$Id: strndup.c 21005 2007-06-08 01:54:35Z lha $"); 3786669Sgreen#endif 3886733Sgreen#include <stdlib.h> 3986669Sgreen#include <string.h> 40215236Sdelphij 4191913Sgreen#include "roken.h" 4291913Sgreen 4391913Sgreen#ifndef HAVE_STRNDUP 4486669Sgreenchar * ROKEN_LIB_FUNCTION 4591913Sgreenstrndup(const char *old, size_t sz) 4686669Sgreen{ 4791913Sgreen size_t len = strnlen (old, sz); 48215236Sdelphij char *t = malloc(len + 1); 4991913Sgreen 5086669Sgreen if (t != NULL) { 51215236Sdelphij memcpy (t, old, len); 52215236Sdelphij t[len] = '\0'; 5386669Sgreen } 5486669Sgreen return t; 5586669Sgreen} 5686669Sgreen#endif /* HAVE_STRNDUP */ 5786669Sgreen