155682Smarkm/* 2233294Sstas * Copyright (c) 1995, 1996, 1997 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#ifdef HAVE_SYS_TYPES_H 3655682Smarkm#include <sys/types.h> 3755682Smarkm#endif 3855682Smarkm#ifdef HAVE_SYS_SOCKET_H 3955682Smarkm#include <sys/socket.h> 4055682Smarkm#endif 4155682Smarkm 42233294SstasRCSID("$Id$"); 4355682Smarkm 4455682Smarkmvoid 4555682Smarkmset_buffer_size(int fd, int read) 4655682Smarkm{ 4755682Smarkm#if defined(SO_RCVBUF) && defined(SO_SNDBUF) && defined(HAVE_SETSOCKOPT) 48233294Sstas int size = 4194304; 49233294Sstas int optname = read ? SO_RCVBUF : SO_SNDBUF; 50233294Sstas 51233294Sstas#ifdef HAVE_GETSOCKOPT 52233294Sstas int curr=0; 53233294Sstas socklen_t optlen; 54233294Sstas 55233294Sstas optlen = sizeof(curr); 56233294Sstas if(getsockopt(fd, SOL_SOCKET, optname, (void *)&curr, &optlen) == 0) { 57233294Sstas if(curr >= size) { 58233294Sstas /* Already large enough */ 59233294Sstas return; 60233294Sstas } 61233294Sstas } 62233294Sstas#endif /* HAVE_GETSOCKOPT */ 63233294Sstas 64233294Sstas while(size >= 131072 && 65233294Sstas setsockopt(fd, SOL_SOCKET, optname, (void *)&size, sizeof(size)) < 0) 6655682Smarkm size /= 2; 6755682Smarkm#endif 6855682Smarkm} 6955682Smarkm 7055682Smarkm 71