fix last commit

bip32.c

@@ -119,7 +119,7 @@ void hdnode_fill_public_key(HDNode *node)
 	ecdsa_get_public_key33(node->private_key, node->public_key);
 }
 
-void hdnode_serialize(const HDNode *node, uint32_t version, char use_public, uint8_t *buffer)
+void hdnode_serialize(const HDNode *node, uint32_t version, char use_public, char *buffer)
 {
 	uint8_t node_data[82], a[32];
 	int i,j;
@@ -149,4 +149,5 @@ void hdnode_serialize(const HDNode *node, uint32_t version, char use_public, uin
 		}
 		buffer[j] = code[rem];
 	}
+	buffer[111] = 0;
 }

bip32.h

@@ -28,6 +28,6 @@ void hdnode_fill_public_key(HDNode *node);
 
 void hdnode_fill_address(HDNode *node);
 
-void hdnode_serialize(const HDNode *node, uint32_t version, char use_public, uint8_t *buffer);
+void hdnode_serialize(const HDNode *node, uint32_t version, char use_public, char *buffer);
 
 #endif

tests.c

@@ -78,7 +78,7 @@ inline char *tohex(const uint8_t *bin, size_t l)
 START_TEST(test_bip32_vector_1)
 {
 	HDNode node;
-	uint8_t buffer[113];
+	char buffer[112];
 
 	// init m
 	hdnode_from_seed(fromhex("000102030405060708090a0b0c0d0e0f"), 16, &node);
@@ -154,7 +154,7 @@ END_TEST
 START_TEST(test_bip32_vector_2)
 {
 	HDNode node;
-	uint8_t buffer[113];
+	char buffer[112];
 	int r;
 
 	// init m