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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "setup.h"
#include <curl/curl.h>
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#define ENABLE_CURLX_PRINTF
/* use our own printf() functions */
#include "curlx.h"
#include "tool_cfgable.h"
#include "tool_msgs.h"
#include "tool_cb_skt.h"
#include "memdebug.h" /* keep this as LAST include */
/*
** callback for CURLOPT_SOCKOPTFUNCTION
*/
int tool_sockopt_cb(void *userdata, curl_socket_t curlfd, curlsocktype purpose)
{
struct Configurable *config = userdata;
int onoff = 1; /* this callback is only used if we ask for keepalives on the
connection */
#if defined(TCP_KEEPIDLE) || defined(TCP_KEEPINTVL)
int keepidle = (int)config->alivetime;
#endif
switch(purpose) {
case CURLSOCKTYPE_IPCXN:
if(setsockopt(curlfd, SOL_SOCKET, SO_KEEPALIVE, (void *)&onoff,
sizeof(onoff)) < 0) {
/* don't abort operation, just issue a warning */
SET_SOCKERRNO(0);
warnf(config, "Could not set SO_KEEPALIVE!\n");
return 0;
}
else {
if(config->alivetime) {
#ifdef TCP_KEEPIDLE
if(setsockopt(curlfd, IPPROTO_TCP, TCP_KEEPIDLE, (void *)&keepidle,
sizeof(keepidle)) < 0) {
/* don't abort operation, just issue a warning */
SET_SOCKERRNO(0);
warnf(config, "Could not set TCP_KEEPIDLE!\n");
return 0;
}
#endif
#ifdef TCP_KEEPINTVL
if(setsockopt(curlfd, IPPROTO_TCP, TCP_KEEPINTVL, (void *)&keepidle,
sizeof(keepidle)) < 0) {
/* don't abort operation, just issue a warning */
SET_SOCKERRNO(0);
warnf(config, "Could not set TCP_KEEPINTVL!\n");
return 0;
}
#endif
#if !defined(TCP_KEEPIDLE) || !defined(TCP_KEEPINTVL)
warnf(config, "Keep-alive functionality somewhat crippled due to "
"missing support in your operating system!\n");
#endif
}
}
break;
default:
break;
}
return 0;
}
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