OpenGrok

**************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
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*
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel (at] 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 https://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.
*
**************************************************************************

CURLOPT_SOCKOPTDATA - custom pointer to pass to sockopt callback #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SOCKOPTDATA, void *pointer); Pass a pointer that will be untouched by libcurl and passed as the first argument in the sockopt callback set with CURLOPT_SOCKOPTFUNCTION(3). The default value of this parameter is NULL. All

static int sockopt_callback(void *clientp, curl_socket_t curlfd,
 curlsocktype purpose)
{
 int val = *(int *)clientp;
 setsockopt(curldfd, SOL_SOCKET, SO_RCVBUF, (const char *)&val, sizeof(val));
 return CURL_SOCKOPT_OK;
}

curl = curl_easy_init();
if(curl) {
 int recvbuffersize = 256 * 1024;

 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");

 /* call this function to set options for the socket */
 curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
 curl_easy_setopt(curl, CURLOPT_SOCKOPTDATA, &recvbuffersize);

 res = curl_easy_perform(curl);

 curl_easy_cleanup(curl);
}

Added in 7.16.0 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. CURLOPT_SOCKOPTFUNCTION "(3), " CURLOPT_OPENSOCKETFUNCTION "(3), "