curl / libcurl / API / curl_easy_setopt / CURLOPT_CLOSESOCKETDATA

CURLOPT_CLOSESOCKETDATA explained

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 will be untouched by libcurl and passed as the first argument in the closesocket callback set with CURLOPT_CLOSESOCKETFUNCTION.

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, CURLOPT_OPENSOCKETFUNCTION

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