From d480dc7f043e755552868bccde5da6cd3427a712 Mon Sep 17 00:00:00 2001
From: robertl <robertl@f51c46e8-681c-474f-0cfe-069cfd0219fb>
Date: Sun, 23 Jul 2006 19:48:04 +0000
Subject: [PATCH] Don't crash when displaying help for formats with no options.

---
 gpsbabel/vecs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gpsbabel/vecs.c b/gpsbabel/vecs.c
index 5864f74c7..0f39461bf 100644
--- a/gpsbabel/vecs.c
+++ b/gpsbabel/vecs.c
@@ -686,7 +686,7 @@ assign_option(const char *module, arglist_t *ap, const char *val)
 void
 disp_vec_options(const char *vecname, arglist_t *ap)
 {
-	for (ap = ap; ap->argstring; ap++) {
+	for (ap = ap; ap && ap->argstring; ap++) {
 		if (*ap->argval && ap->argval) {
 			printf("options: module/option=value: %s/%s=\"%s\"", 
 				vecname, ap->argstring, *ap->argval);
-- 
2.30.2