curl-w32/docs/libcurl/opts/CURLOPT_PROXY_TLSAUTH_TYPE.md

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---
c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_PROXY_TLSAUTH_TYPE
Section: 3
Source: libcurl
See-also:
- CURLOPT_PROXY_TLSAUTH_PASSWORD (3)
- CURLOPT_PROXY_TLSAUTH_USERNAME (3)
- CURLOPT_TLSAUTH_PASSWORD (3)
- CURLOPT_TLSAUTH_USERNAME (3)
---
# NAME
CURLOPT_PROXY_TLSAUTH_TYPE - HTTPS proxy TLS authentication methods
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_TLSAUTH_TYPE,
char *type);
~~~
# 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".
## 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
CURLOPT_PROXY_TLSAUTH_USERNAME(3) and
CURLOPT_PROXY_TLSAUTH_PASSWORD(3) options.
The application does not have to keep the string around after setting this
option.
# DEFAULT
blank
# PROTOCOLS
All
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
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");
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
~~~
# AVAILABILITY
Added in 7.52.0
You need to build libcurl with GnuTLS or OpenSSL with TLS-SRP support for this
to work.
# RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.