CURLOPT_PORT(3)            Library Functions Manual            CURLOPT_PORT(3)

NAME
       CURLOPT_PORT - remote port number to connect to

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PORT, long number);

DESCRIPTION
       We discourage using this option since its scope is not obvious and hard
       to predict. Set the preferred port number in the URL instead.

       This option sets number to be the remote port number to connect to,
       instead of the one specified in the URL or the default port for the
       used protocol.

       Usually, you just let the URL decide which port to use but this allows
       the application to override that.

       While this option accepts a 'long', a port number is an unsigned 16 bit
       number and therefore using a port number lower than zero or over 65535
       causes a CURLE_BAD_FUNCTION_ARGUMENT error.

DEFAULT
       By default this is 0 which makes it not used. This also makes port
       number zero impossible to set with this API.

PROTOCOLS
       All

EXAMPLE
       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
           curl_easy_setopt(curl, CURLOPT_PORT, 8080L);
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY
       Always

RETURN VALUE
       Returns CURLE_OK

SEE ALSO
       CURLINFO_PRIMARY_PORT(3), CURLOPT_STDERR(3), CURLOPT_URL(3)

libcurl                          April 26 2024                 CURLOPT_PORT(3)