plugin/pay: fix crash if failcodename isn't set.

Fixes: #7200 Signed-off-by: Rusty Russell <[email protected]>
ElementsProject · Aug 12, 2024 · a243f3c · a243f3c
1 parent 48259af
commit a243f3c
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/plugins/libplugin-pay.c b/plugins/libplugin-pay.c
@@ -2346,8 +2346,9 @@ static void payment_finished(struct payment *p)
 			json_add_u64(ret, "id", failure->id);
 
 			json_add_u32(ret, "failcode", failure->failcode);
-			json_add_string(ret, "failcodename",
-					failure->failcodename);
+			if (failure->failcodename)
+				json_add_string(ret, "failcodename",
+						failure->failcodename);
 
 			if (p->invstring)
 				json_add_invstring(ret, p->invstring);