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CURLOPT_CLOSESOCKETFUNCTIONcurl_easy_setopt optiCURLOPT_CLOSESOCKETFUNCTION(3) NAME CURLOPT_CLOSESOCKETFUNCTION - callback to socket close replacement function SYNOPSIS #include <curl/curl.h> int closesocket_callback(void *clientp, curl_socket_t item); CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CLOSESOCKETFUNCTION, closesocket_callback); DESCRIPTION Pass a pointer to your callback function, which should match the proto- type shown above. This callback function gets called by libcurl instead of the close(3) or closesocket(3) call when sockets are closed (not for any other file descriptors). This is pretty much the reverse to the CURLOPT_OPENSOCK- ETFUNCTION(3) option. Return 0 to signal success and 1 if there was an error. The clientp pointer is set with CURLOPT_CLOSESOCKETDATA(3). item is the socket libcurl wants to be closed. DEFAULT By default libcurl uses the standard socket close function. PROTOCOLS All EXAMPLE static int closesocket(void *clientp, curl_socket_t item) { printf("libcurl wants to close %d now0, (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_CLOSESOCKETDATA(3), CURLOPT_OPENSOCKETFUNCTION(3), libcurl 7.54.1 May 31, 2017 CURLOPT_CLOSESOCKETFUNCTION(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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