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.TH CURLOPT_PROXY_TLSAUTH_TYPE 3 "September 26, 2023" "ibcurl 8.4.0" libcurl

.SH NAME
CURLOPT_PROXY_TLSAUTH_TYPE \- HTTPS proxy TLS authentication methods
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_TLSAUTH_TYPE,
                          char *type);
.fi
.SH DESCRIPTION
Pass a pointer to a null-terminated string as parameter. The string should be
the method of the TLS authentication used for the HTTPS connection. Supported
method is "SRP".

.IP SRP
TLS-SRP authentication. Secure Remote Password authentication for TLS is
defined in RFC 5054 and provides mutual authentication if both sides have a
shared secret. To use TLS-SRP, you must also set the
\fICURLOPT_PROXY_TLSAUTH_USERNAME(3)\fP and
\fICURLOPT_PROXY_TLSAUTH_PASSWORD(3)\fP options.

The application does not have to keep the string around after setting this
option.
.SH DEFAULT
blank
.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_TLSAUTH_TYPE, "SRP");
  curl_easy_setopt(curl, CURLOPT_PROXY_TLSAUTH_USERNAME, "user");
  curl_easy_setopt(curl, CURLOPT_PROXY_TLSAUTH_PASSWORD, "secret");
  ret = curl_easy_perform(curl);
  curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.52.0

You need to build libcurl with GnuTLS or OpenSSL with TLS-SRP support for this
to work.
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_PROXY_TLSAUTH_PASSWORD (3),
.BR CURLOPT_PROXY_TLSAUTH_USERNAME (3),
.BR CURLOPT_TLSAUTH_PASSWORD (3),
.BR CURLOPT_TLSAUTH_USERNAME (3)