DOKK / manpages / debian 10 / libcurl4-doc / CURLOPT_PROXYPORT.3.en
CURLOPT_PROXYPORT(3) curl_easy_setopt options 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);

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 can't be larger than 65535.

0, not specified which makes it use the default port

All

CURL *curl = curl_easy_init();
if(curl) {

curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/foo.bin");
curl_easy_setopt(curl, CURLOPT_PROXY, "localhost");
curl_easy_setopt(curl, CURLOPT_PROXYPORT, 8080L);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl); }

Always

Returns CURLE_OK

CURLOPT_PROXY(3), CURLOPT_PROXYTYPE(3),

May 31, 2017 libcurl 7.64.0