tokenize: check show_string() for NULL pointer

Fix issue where show_string() being passed a NULL pointer by accident.
This only happened during debugging, but would be a useful addition to
the checks in this function.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tokenize.c b/tokenize.c
index fa7890d3..e98684ec 100644
--- a/tokenize.c
+++ b/tokenize.c
@@ -124,7 +124,7 @@ const char *show_string(const struct string *string)
 	char *ptr;
 	int i;
 
-	if (!string->length)
+	if (!string || !string->length)
 		return "<bad_string>";
 	ptr = buffer;
 	*ptr++ = '"';