From 991bec67ee41fd7f3c12e9194d96491b51bedd50 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Thu, 23 Aug 2018 11:30:18 -0400
Subject: When Tor is compiled with NSS, don't claim support for LinkAuth=1

Closes ticket 27288
---
 src/rust/external/external.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/rust/external/external.rs')

diff --git a/src/rust/external/external.rs b/src/rust/external/external.rs
index 874c7c3153..d342fe096e 100644
--- a/src/rust/external/external.rs
+++ b/src/rust/external/external.rs
@@ -26,3 +26,13 @@ pub fn c_tor_version_as_new_as(platform: &str, cutoff: &str) -> bool {
 
     result == 1
 }
+
+extern "C" {
+    fn tor_is_using_nss() -> c_int;
+}
+
+/// Return true if Tor was built to use NSS.
+pub fn c_tor_is_using_nss() -> bool
+{
+    0 != unsafe { tor_is_using_nss() }
+}
-- 
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