.\" generated by cd2nroff 0.1 from CURLOPT_PROXY_KEYPASSWD.md .TH CURLOPT_PROXY_KEYPASSWD 3 "March 22 2024" libcurl .SH NAME CURLOPT_PROXY_KEYPASSWD \- passphrase for the proxy private key .SH SYNOPSIS .nf #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_KEYPASSWD, char *pwd); .fi .SH DESCRIPTION This option is for connecting to an HTTPS proxy, not an HTTPS server. Pass a pointer to a null\-terminated string as parameter. It is used as the password required to use the \fICURLOPT_PROXY_SSLKEY(3)\fP 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. .SH DEFAULT NULL .SH PROTOCOLS Used with HTTPS proxy .SH EXAMPLE .nf 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, "https://proxy:443"); curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "superman"); res = curl_easy_perform(curl); curl_easy_cleanup(curl); } } .fi .SH AVAILABILITY Added in 7.52.0 .SH RETURN VALUE Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space. .SH SEE ALSO .BR CURLOPT_KEYPASSWD (3), .BR CURLOPT_PROXY_SSLKEY (3), .BR CURLOPT_SSH_PRIVATE_KEYFILE (3), .BR CURLOPT_SSLKEY (3)