155682Smarkm/* 2233294Sstas * Copyright (c) 1995-2000 Kungliga Tekniska H��gskolan 355682Smarkm * (Royal Institute of Technology, Stockholm, Sweden). 455682Smarkm * All rights reserved. 5233294Sstas * 655682Smarkm * Redistribution and use in source and binary forms, with or without 755682Smarkm * modification, are permitted provided that the following conditions 855682Smarkm * are met: 9233294Sstas * 1055682Smarkm * 1. Redistributions of source code must retain the above copyright 1155682Smarkm * notice, this list of conditions and the following disclaimer. 12233294Sstas * 1355682Smarkm * 2. Redistributions in binary form must reproduce the above copyright 1455682Smarkm * notice, this list of conditions and the following disclaimer in the 1555682Smarkm * documentation and/or other materials provided with the distribution. 16233294Sstas * 1755682Smarkm * 3. Neither the name of the Institute nor the names of its contributors 1855682Smarkm * may be used to endorse or promote products derived from this software 1955682Smarkm * without specific prior written permission. 20233294Sstas * 2155682Smarkm * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 2255682Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2355682Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2455682Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 2555682Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2655682Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2755682Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2855682Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2955682Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3055682Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3155682Smarkm * SUCH DAMAGE. 3255682Smarkm */ 3355682Smarkm 3455682Smarkm#include "common.h" 3555682Smarkm#include <stdio.h> 3655682Smarkm#include <err.h> 3755682Smarkm#include "roken.h" 3855682Smarkm 39233294SstasRCSID("$Id$"); 4055682Smarkm 4155682Smarkm/* 4255682Smarkm * Allocate a buffer enough to handle st->st_blksize, if 4355682Smarkm * there is such a field, otherwise BUFSIZ. 4455682Smarkm */ 4555682Smarkm 4655682Smarkmvoid * 4755682Smarkmalloc_buffer (void *oldbuf, size_t *sz, struct stat *st) 4855682Smarkm{ 4955682Smarkm size_t new_sz; 5055682Smarkm 5155682Smarkm new_sz = BUFSIZ; 5272445Sassar#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE 5355682Smarkm if (st) 5455682Smarkm new_sz = max(BUFSIZ, st->st_blksize); 5555682Smarkm#endif 5655682Smarkm if(new_sz > *sz) { 5755682Smarkm if (oldbuf) 5855682Smarkm free (oldbuf); 5955682Smarkm oldbuf = malloc (new_sz); 6055682Smarkm if (oldbuf == NULL) { 6155682Smarkm warn ("malloc"); 6255682Smarkm *sz = 0; 6355682Smarkm return NULL; 6455682Smarkm } 6555682Smarkm *sz = new_sz; 6655682Smarkm } 6755682Smarkm return oldbuf; 6855682Smarkm} 6955682Smarkm 70