From a1eb92966e6769f96fe2d9d78da96f59cc299a01 Mon Sep 17 00:00:00 2001
From: pancake <pancake@nopcode.org>
Date: Tue, 19 Apr 2016 19:46:41 +0200
Subject: [PATCH] Fix #4663 - segfault in r2 -d

---
 binr/radare2/radare2.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/binr/radare2/radare2.c b/binr/radare2/radare2.c
index 15697b3610..e01c0b36f3 100644
--- a/binr/radare2/radare2.c
+++ b/binr/radare2/radare2.c
@@ -444,6 +444,10 @@ int main(int argc, char **argv, char **envp) {
 		return main_help (help > 1? 2: 0);
 	}
 	if (debug == 1) {
+		if (optind >= argc) {
+			eprintf ("Missing argument for -d\n");
+			return 1;
+		}
 		char *uri = strdup (argv[optind]);
 		char *p = strstr (uri, "://");
 		if (p) {