Fix loading from not standalone zip.

src/main.c

@@ -11,6 +11,7 @@
 
 #include "backtrace.h"
 #include "sqlite3.h"
+#include "unzip.h"
 
 #include <getopt.h>
 #include <stdlib.h>
@@ -412,11 +413,18 @@ static int _tf_command_run(const char* file, int argc, char* argv[])
 		.http_port = 12345,
 		.https_port = 12346,
 		.ssb_port = 8008,
-		.zip = file,
 		.db_path = k_db_path_default,
 	};
 	bool show_usage = false;
 
+	/* Check if the executable has data attached. */
+	unzFile zip = unzOpen(file);
+	if (zip)
+	{
+		args.zip = file;
+		unzClose(zip);
+	}
+
 	while (!show_usage)
 	{
 		static const struct option k_options[] = {