Fix _gcry_log_printmpi to print 00 instead of a sole sign.

* src/misc.c: Special case an mpi length of 0.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/misc.c b/src/misc.c
index d7a7a65c..6f03eb5a 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -352,7 +352,10 @@ _gcry_log_printmpi (const char *text, gcry_mpi_t mpi)
         do_printhex (text? text:" ", " [out of core]", NULL, 0);
       else
         {
-          do_printhex (text, sign? "-":"+", rawmpi, rawmpilen);
+          if (!rawmpilen)
+            do_printhex (text, sign? "-":"+", "", 1);
+          else
+            do_printhex (text, sign? "-":"+", rawmpi, rawmpilen);
           gcry_free (rawmpi);
         }
     }