From 194ecff743b23e8eace1e4b6221d4d18233952e6 Mon Sep 17 00:00:00 2001
From: oliskoli <oliskoli>
Date: Thu, 12 Jul 2007 19:27:51 +0000
Subject: [PATCH] Don't crash on command lines without file/device name "... -i
 gdb -f".

---
 main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/main.c b/main.c
index 2e4b97e1b..cca0d9a13 100644
--- a/main.c
+++ b/main.c
@@ -331,6 +331,9 @@ main(int argc, char *argv[])
 				optarg = argv[argn][2]
 					? argv[argn]+2 : argv[++argn];
 				fname = optarg;
+				if (fname == NULL) {
+					fatal ("No file or device name specified.\n");
+				}
 				if (ivecs == NULL) {
 					fatal ("No valid input type specified\n");
 				}
@@ -359,6 +362,9 @@ main(int argc, char *argv[])
 				optarg = argv[argn][2]
 					? argv[argn]+2 : argv[++argn];
 				ofname = optarg;
+				if (ofname == NULL) {
+					fatal ("No output file or device name specified.\n");
+				}
 				if (ovecs && (!(global_opts.masked_objective & POSNDATAMASK))) {
 					/* simulates the default behaviour of waypoints */
 					if (doing_nothing) 
-- 
2.30.2