1 files changed, 17 insertions, 1 deletions
diff --git a/cipher/dsa.c b/cipher/dsa.c
index 5828b9508..d7c4f6892 100644
--- a/cipher/dsa.c
+++ b/cipher/dsa.c
@@ -52,13 +52,29 @@ static void generate( DSA_secret_key *sk, unsigned nbits, MPI **ret_factors );
 static void sign(MPI r, MPI s, MPI input, DSA_secret_key *skey);
 static int  verify(MPI r, MPI s, MPI input, DSA_public_key *pkey);
 
+
+static void (*progress_cb) ( void *, int );
+static void *progress_cb_data;
+
+void
+register_pk_dsa_progress ( void (*cb)( void *, int), void *cb_data )
+{
+    progress_cb = cb;
+    progress_cb_data = cb_data;
+}
+
+
 static void
 progress( int c )
 {
-    fputc( c, stderr );
+    if ( progress_cb )
+	progress_cb ( progress_cb_data, c );
+    else
+	fputc( c, stderr );
 }
 
 
+
 /****************
  * Generate a random secret exponent k less than q
  */