plucky (3) CURLINFO_PRIMARY_PORT.3.gz

NAME

       CURLINFO_PRIMARY_PORT - get the latest destination port number

SYNOPSIS

       #include <curl/curl.h>

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

DESCRIPTION

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

       This is the destination port of the actual TCP or UDP connection libcurl used.  If a proxy was  used  for
       the  most  recent  transfer,  this  is  the port number of the proxy, if no proxy was used it is the port
       number of the most recently accessed URL.

PROTOCOLS

       This functionality affects all supported protocols

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
           res = curl_easy_perform(curl);
           if(res == CURLE_OK) {
             long port;
             res = curl_easy_getinfo(curl, CURLINFO_PRIMARY_PORT, &port);
             if(!res)
               printf("Connected to remote port: %ld\n", port);
           }
           curl_easy_cleanup(curl);
         }
       }

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_PORT(3), CURLINFO_PRIMARY_IP(3), curl_easy_getinfo(3), curl_easy_setopt(3)