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.TH CURLOPT_PROXY_SSLCERTTYPE 3 "September 08, 2021" "libcurl 7.80.0" "curl_easy_setopt options"

.SH NAME
CURLOPT_PROXY_SSLCERTTYPE \- type of the proxy client SSL certificate
.SH SYNOPSIS
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLCERTTYPE, char *type);
.SH DESCRIPTION
Pass a pointer to a null-terminated string as parameter. The string should be
the format of your client certificate used when connecting to an HTTPS proxy.

Supported formats are "PEM" and "DER", except with Secure Transport. OpenSSL
(versions 0.9.3 and later) and Secure Transport (on iOS 5 or later, or OS X
10.7 or later) also support "P12" for PKCS#12-encoded files.

The application does not have to keep the string around after setting this
option.
.SH DEFAULT
"PEM"
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
  curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy");
  curl_easy_setopt(curl, CURLOPT_PROXY_SSLCERT, "client.pem");
  curl_easy_setopt(curl, CURLOPT_PROXY_SSLCERTTYPE, "PEM");
  curl_easy_setopt(curl, CURLOPT_PROXY_SSLKEY, "key.pem");
  curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "s3cret");
  ret = curl_easy_perform(curl);
  curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.52.0

If built TLS enabled.
.SH RETURN VALUE
Returns CURLE_OK if TLS is supported, CURLE_UNKNOWN_OPTION if not, or
CURLE_OUT_OF_MEMORY if there was insufficient heap space.
.SH "SEE ALSO"
.BR CURLOPT_PROXY_SSLCERT "(3), " CURLOPT_PROXY_SSLKEY "(3), "
.BR CURLOPT_SSLCERTTYPE "(3), "