(Fgnutls_peer_status): Return the DH prime bits for the connection

2 files changed, 11 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 70b1bb001a9..b791d18bccb 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -3,6 +3,8 @@
         * gnutls.c (gnutls_certificate_details): The :signature isn't
         that useful, so remove it.
         (gnutls_certificate_details): Clean up whitespace slightly.
+        (Fgnutls_peer_status): Return the Diffie-Hellman prime bits for
+        the connection.
 
 2014-12-07  Jan Djärv  <jan.h.d@swipnet.se>
 
diff --git a/src/gnutls.c b/src/gnutls.c
index c4d85a2030e..2006bbcef0e 100644
--- a/src/gnutls.c
+++ b/src/gnutls.c
@@ -1029,6 +1029,15 @@ The return value is a property list with top-level keys :warnings and
                      (intern (":certificate"),
                       gnutls_certificate_details (XPROCESS (proc)->gnutls_certificate)));
 
+  /* Diffie-Hellman prime bits. */
+  {
+    int bits = gnutls_dh_get_prime_bits (XPROCESS (proc)->gnutls_state);
+    if (bits > 0)
+      result = nconc2 (result, list2
+                       (intern (":diffie-hellman-prime-bits"),
+                        make_number (bits)));
+  }
+
   return result;
 }