CURLOPT_CLOSESOCKETDATA(3)

NAME
CURLOPT_CLOSESOCKETDATA - pointer passed to the socket close callback

SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CLOSESOCKETDATA,
                          void *pointer);

DESCRIPTION
Pass a pointer that remains untouched by libcurl and passed as the first argument in the closesocket callback set with CURLOPT_CLOSESOCKETFUNCTION(3).

DEFAULT
The default value of this parameter is NULL.

PROTOCOLS
All except file:

EXAMPLE
static int closesocket(void *clientp, curl_socket_t item)
{
  printf("libcurl wants to close %d now\n", (int)item);
  return 0;
}
/* call this function to close sockets */
curl_easy_setopt(curl, CURLOPT_CLOSESOCKETFUNCTION, closesocket);
curl_easy_setopt(curl, CURLOPT_CLOSESOCKETDATA, &sockfd);

AVAILABILITY
Added in 7.21.7

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

SEE ALSO
CURLOPT_CLOSESOCKETFUNCTION(3), CURLOPT_OPENSOCKETFUNCTION(3)