CURLOPT_PROXYPORT(3) Library Functions Manual CURLOPT_PROXYPORT(3)
NAME
CURLOPT_PROXYPORT - port number the proxy listens on
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXYPORT, long port);
DESCRIPTION
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.
Disabling this option, setting it to zero, makes it not specified which
makes libcurl use the default proxy port number or the port number spec-
ified in the proxy URL string.
While this accepts a 'long', the port number is 16 bit so it cannot be
larger than 65535.
DEFAULT
0
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/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);
}
}
AVAILABILITY
Added in curl 7.1
RETURN VALUE
curl_easy_setopt(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_PRIMARY_PORT(3), CURLOPT_PORT(3), CURLOPT_PROXY(3), CUR-
LOPT_PROXYTYPE(3)
libcurl 2026-07-12 CURLOPT_PROXYPORT(3)
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