typefind: use g_ascii_strncasecmp() instead of strncasecmp()

g_ascii_strncasecmp() is more portable and likely more robust as
well (with random binary data as input).

Fixes #612845.

diff --git a/gst/typefind/gsttypefindfunctions.c b/gst/typefind/gsttypefindfunctions.c
index a15eb17..46b571a 100644 (file)
--- a/gst/typefind/gsttypefindfunctions.c
+++ b/gst/typefind/gsttypefindfunctions.c
@@ -2477,8 +2477,8 @@ mod_type_find (GstTypeFind * tf, gpointer unused)
   }
   /* STM */
   if ((data = gst_type_find_peek (tf, 20, 8)) != NULL) {
-    if (strncasecmp ((gchar *) data, "!Scream!", 8) == 0 ||
-        strncasecmp ((gchar *) data, "BMOD2STM", 8) == 0) {
+    if (g_ascii_strncasecmp ((gchar *) data, "!Scream!", 8) == 0 ||
+        g_ascii_strncasecmp ((gchar *) data, "BMOD2STM", 8) == 0) {
       guint8 *id, *stmtype;
 
       if ((id = gst_type_find_peek (tf, 28, 1)) == NULL)