commit 7ff7401c9237cda661869c1cb196d685706ac4e9
author Behdad Esfahbod <behdad@behdad.org> Mon Apr 11 13:27:30 2011 -0400
committer Behdad Esfahbod <behdad@behdad.org> Mon Apr 11 13:27:30 2011 -0400
tree fbb7d2bf0c3d17688fc84a7972379848ed0b208b
parent 02f6e62d6cabc7808c188daef26a1fe7ac626b1f

Make hb_tag_from_string(NULL) return HB_TAG_NONE

src/hb-common.c

diff --git a/src/hb-common.c b/src/hb-common.c
index 3dfdbe8..90cba4e 100644
--- a/src/hb-common.c
+++ b/src/hb-common.c
@@ -35,6 +35,9 @@
   char tag[4];
   unsigned int i;
 
+  if (!s)
+    return HB_TAG_NONE;
+
   for (i = 0; i < 4 && s[i]; i++)
     tag[i] = s[i];
   for (; i < 4; i++)