Вы не можете выбрать более 25 тем
Темы должны начинаться с буквы или цифры, могут содержать дефисы(-) и должны содержать не более 35 символов.
85 строки
3.0 KiB
Groff
85 строки
3.0 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2021, 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 https://curl.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.
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.\"
|
|
.TH CURLOPT_OPENSOCKETDATA 3 "November 26, 2021" "libcurl 7.83.1" "curl_easy_setopt options"
|
|
|
|
.SH NAME
|
|
CURLOPT_OPENSOCKETDATA \- pointer passed to open socket callback
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_OPENSOCKETDATA, void *pointer);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
Pass a \fIpointer\fP that will be untouched by libcurl and passed as the first
|
|
argument in the opensocket callback set with \fICURLOPT_OPENSOCKETFUNCTION(3)\fP.
|
|
.SH DEFAULT
|
|
The default value of this parameter is NULL.
|
|
.SH PROTOCOLS
|
|
All
|
|
.SH EXAMPLE
|
|
.nf
|
|
/* make libcurl use the already established socket 'sockfd' */
|
|
|
|
static curl_socket_t opensocket(void *clientp,
|
|
curlsocktype purpose,
|
|
struct curl_sockaddr *address)
|
|
{
|
|
curl_socket_t sockfd;
|
|
sockfd = *(curl_socket_t *)clientp;
|
|
/* the actual externally set socket is passed in via the OPENSOCKETDATA
|
|
option */
|
|
return sockfd;
|
|
}
|
|
|
|
static int sockopt_callback(void *clientp, curl_socket_t curlfd,
|
|
curlsocktype purpose)
|
|
{
|
|
/* This return code was added in libcurl 7.21.5 */
|
|
return CURL_SOCKOPT_ALREADY_CONNECTED;
|
|
}
|
|
|
|
curl = curl_easy_init();
|
|
if(curl) {
|
|
/* libcurl will internally think that you connect to the host
|
|
* and port that you specify in the URL option. */
|
|
curl_easy_setopt(curl, CURLOPT_URL, "http://99.99.99.99:9999");
|
|
/* call this function to get a socket */
|
|
curl_easy_setopt(curl, CURLOPT_OPENSOCKETFUNCTION, opensocket);
|
|
curl_easy_setopt(curl, CURLOPT_OPENSOCKETDATA, &sockfd);
|
|
|
|
/* call this function to set options for the socket */
|
|
curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
|
|
|
|
res = curl_easy_perform(curl);
|
|
|
|
curl_easy_cleanup(curl);
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.17.1
|
|
.SH RETURN VALUE
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|
|
.SH "SEE ALSO"
|
|
.BR CURLOPT_OPENSOCKETFUNCTION "(3), " CURLOPT_SOCKOPTFUNCTION "(3), "
|