NAME

       CURLINFO_LASTSOCKET - get the last socket used

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_LASTSOCKET, long *socket);

DESCRIPTION

       Deprecated since 7.45.0. Use CURLINFO_ACTIVESOCKET(3) instead.

       Pass  a  pointer  to  a  long to receive the last socket used by this curl session. If the
       socket is no longer valid, -1 is returned. When you finish working with  the  socket,  you
       must  call curl_easy_cleanup() as usual and let libcurl close the socket and cleanup other
       resources associated  with  the  handle.  This  is  typically  used  in  combination  with
       CURLOPT_CONNECT_ONLY(3).

       NOTE:  this API is deprecated since it is not working on win64 where the SOCKET type is 64
       bits large while its 'long' is 32  bits.  Use  the  CURLINFO_ACTIVESOCKET(3)  instead,  if
       possible.

PROTOCOLS

       All

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         long sockfd; /* does not work on win64! */
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

         /* Do not do the transfer - only connect to host */
         curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
         res = curl_easy_perform(curl);

         /* Extract the socket from the curl handle */
         res = curl_easy_getinfo(curl, CURLINFO_LASTSOCKET, &sockfd);

         if(res != CURLE_OK) {
           printf("Error: %s\n", curl_easy_strerror(res));
           return 1;
         }
       }

AVAILABILITY

       Added in 7.15.2

RETURN VALUE

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

SEE ALSO

       curl_easy_getinfo(3), curl_easy_setopt(3), CURLINFO_ACTIVESOCKET(3),