NAME¶
CURLOPT_CONNECT_ONLY - stop when connected to target server
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. This option is implemented for HTTP, SMTP and POP3.
The option can be used to simply test a connection to a server, but is more
useful when used with the
CURLINFO_LASTSOCKET 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 and POP3
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),