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Man Pages


Manual Reference Pages  -  CURLOPT_CONNECT_ONLY (3)

NAME

CURLOPT_CONNECT_ONLY - stop when connected to target server

CONTENTS

Synopsis
Description
Default
Protocols
Example
Availability
Return Value

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CONNECT_ONLY, long only);

DESCRIPTION

Pass a long. If the parameter equals 1, it tells the library to perform all the required proxy authentication and connection setup, but no data transfer, and then return.

The option can be used to simply test a connection to a server, but is more useful when used with the CURLINFO_ACTIVESOCKET(3) option to curl_easy_getinfo(3) as the library can set up the connection and then the application can obtain the most recently used socket for special data transfers.

DEFAULT

0

PROTOCOLS

HTTP, SMTP, POP3 and IMAP

EXAMPLE

TODO

AVAILABILITY

Added in 7.15.2

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

CURLOPT_VERBOSE(3), CURLOPT_HTTPPROXYTUNNEL(3),
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libcurl 7.37.0 CURLOPT_CONNECT_ONLY (3) 19 Jun 2014

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