From 05587ca087a841c11a72d81c197b88710c584ef1 Mon Sep 17 00:00:00 2001
From: aj <aj@c6295689-39f2-0310-b995-f0e70906c6a9>
Date: Mon, 5 Dec 2005 21:21:02 +0000
Subject: [PATCH] add a few sanity checks.

git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@2700 c6295689-39f2-0310-b995-f0e70906c6a9
---
 src/scconf/parse.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/scconf/parse.c b/src/scconf/parse.c
index 8f90c811..17299996 100644
--- a/src/scconf/parse.c
+++ b/src/scconf/parse.c
@@ -152,6 +152,8 @@ scconf_item *scconf_item_add(scconf_context * config, scconf_block * block, scco
 		parser.current_item->value.comment = strdup((char *) data);
 		break;
 	case SCCONF_ITEM_TYPE_BLOCK:
+		if (!dst)
+			return NULL;
 		dst->parent = parser.block;
 		parser.current_item->value.block = dst;
 		scconf_list_destroy(parser.name);
@@ -192,8 +194,11 @@ scconf_block *scconf_block_add(scconf_context * config, scconf_block * block, co
 {
 	scconf_parser parser;
 
+	if (!config)
+		return NULL;
+
 	memset(&parser, 0, sizeof(scconf_parser));
-	parser.config = config ? config : NULL;
+	parser.config = config;
 	parser.key = key ? strdup(key) : NULL;
 	parser.block = block ? block : config->root;
 	scconf_list_copy(name, &parser.name);