Don't crash when fc-cat invoked with no arguments.

Fix invalid read access caused by premature free and GCC4 warnings in
    libxml2 codepath.
reviewed by: plam
reviewed by: plam

1 files changed, 3 insertions, 0 deletions

diff --git a/fc-cat/fc-cat.c b/fc-cat/fc-cat.c
index 4f5b71d5..4436512a 100644
--- a/fc-cat/fc-cat.c
+++ b/fc-cat/fc-cat.c
@@ -325,6 +325,9 @@ main (int argc, char **argv)
     i = 1;
 #endif
 
+    if (i >= argc)
+        usage (argv[0]);
+
     if (FcCacheFileRead (fs, dirs, dirname (strdup(argv[i])), argv[i]))
 	FcCachePrintSet (fs, dirs, argv[i]);