DOKK / manpages / debian 12 / libcurl4-doc / CURLOPT_PROXY_KEYPASSWD.3.en
CURLOPT_PROXY_KEYPASSWD(3) curl_easy_setopt options CURLOPT_PROXY_KEYPASSWD(3)

CURLOPT_PROXY_KEYPASSWD - passphrase for the proxy private key

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_KEYPASSWD, char *pwd);

This option is for connecting to an HTTPS proxy, not an HTTPS server.

Pass a pointer to a null-terminated string as parameter. It will be used as the password required to use the CURLOPT_PROXY_SSLKEY(3) private key. You never need a pass phrase to load a certificate but you need one to load your private key.

The application does not have to keep the string around after setting this option.

NULL

Used with HTTPS proxy

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

curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy:443");
curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "superman");
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl); }

Added in 7.52.0

Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

CURLOPT_PROXY_SSLKEY(3), CURLOPT_SSH_PRIVATE_KEYFILE(3), CURLOPT_SSLKEY(3),

January 2, 2023 libcurl 7.88.1