CURLOPT_CLOSESOCKETDATA(3) Library Functions Manual
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
NULL
PROTOCOLS
This functionality affects all supported protocols
EXAMPLE
struct priv { void *custom; }; static int closesocket(void *clientp, curl_socket_t item) { struct priv *my = clientp; printf("our ptr: %p\n", my->custom); printf("libcurl wants to close %d now\n", (int)item); return 0; } int main(void) { struct priv myown; CURL *curl = curl_easy_init(); /* call this function to close sockets */ curl_easy_setopt(curl, CURLOPT_CLOSESOCKETFUNCTION, closesocket); curl_easy_setopt(curl, CURLOPT_CLOSESOCKETDATA, &myown); curl_easy_perform(curl); curl_easy_cleanup(curl); }
AVAILABILITY
Added in curl 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) libcurl 2024-08-05 CURLOPT_CLOSESOCKETDATA(3)
curl 8.9.1 - Generated Tue Aug 13 18:56:48 CDT 2024