CURLOPT_IOCTLDATA(3)
custom pointer passed to I/O callback
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IOCTLDATA, void *pointer);
DESCRIPTION
Pass the
pointer that will be untouched by libcurl and passed as the 3rd
argument in the ioctl callback set with
CURLOPT_IOCTLFUNCTION(3).
DEFAULT
By default, the value of this parameter is NULL.
PROTOCOLS
Used with HTTP
EXAMPLE
TODO
AVAILABILITY
Added in 7.12.3
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.