noble (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

       All

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 7.21.0

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_LOCAL_PORT(3), CURLINFO_PRIMARY_IP(3)