CURLOPT_PROXYPORT(3) Library Functions Manual CURLOPT_PROXYPORT(3)

CURLOPT_PROXYPORT - port number the proxy listens on

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXYPORT, long port);

We discourage use of this option.

Pass a long with this option to set the proxy port to connect to unless it is specified in the proxy string CURLOPT_PROXY(3) or uses 443 for https proxies and 1080 for all others as default.

While this accepts a 'long', the port number is 16 bit so it cannot be larger than 65535.

0, not specified which makes it use the default port

All

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_PROXY, "localhost");
    curl_easy_setopt(curl, CURLOPT_PROXYPORT, 8080L);
    res = curl_easy_perform(curl);
    curl_easy_cleanup(curl);
  }
}

Always

Returns CURLE_OK

CURLINFO_PRIMARY_PORT(3), CURLOPT_PORT(3), CURLOPT_PROXY(3), CURLOPT_PROXYTYPE(3)

2024-05-22 libcurl