www.LinuxHowtos.org

CURLOPT_CLOSESOCKETDATA

Section: curl_easy_setopt options (3)
Updated: May 31, 2017
Index Return to Main Contents

NAME

CURLOPT_CLOSESOCKETDATA - pointer passed to the socket close callback

SYNOPSIS

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CLOSESOCKETDATA, void *pointer);

DESCRIPTION

Pass a pointer that will be 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, (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.