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
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