plucky (3) CURLINFO_LOCAL_PORT.3.gz

NAME

       CURLINFO_LOCAL_PORT - get the latest local port number

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_LOCAL_PORT, long *portp);

DESCRIPTION

       Pass  a  pointer  to a long to receive the local port number of the most recent connection done with this
       curl handle.

       If the connection was done using QUIC, the port number is a UDP port number, otherwise it is a  TCP  port
       number.

PROTOCOLS

       This functionality affects quic and tcp

EXAMPLE

       int main(void)
       {
         CURL *curl;
         CURLcode res;

         curl = curl_easy_init();
         if(curl) {
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
           res = curl_easy_perform(curl);

           if(CURLE_OK == res) {
             long port;
             res = curl_easy_getinfo(curl, CURLINFO_LOCAL_PORT, &port);

             if(CURLE_OK == res) {
               printf("We used local port: %ld\n", port);
             }
           }
           curl_easy_cleanup(curl);
         }
         return 0;
       }

AVAILABILITY

       Added in curl 7.21.0

RETURN VALUE

       curl_easy_getinfo(3) returns a CURLcode indicating success or error.

       CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).

SEE ALSO

       CURLINFO_LOCAL_IP(3), CURLINFO_PRIMARY_PORT(3), curl_easy_getinfo(3), curl_easy_setopt(3)