- fixed memleak in sha1

Source/charon/transforms/hashers/hasher.c

@@ -34,11 +34,11 @@ hasher_t *hasher_create(hash_algorithm_t hash_algorithm)
 {
 	switch (hash_algorithm)
 	{
-		case SHA1:
+		case HASH_SHA1:
 		{
 			return (hasher_t*)hasher_sha1_create();
 		}
-		case MD5:
+		case HASH_MD5:
 		default:
 			return NULL;
 	}

Source/charon/transforms/hashers/hasher.h

@@ -32,8 +32,8 @@
 typedef enum hash_algorithm_e hash_algorithm_t;
 
 enum hash_algorithm_e {
-	SHA1,
+	HASH_SHA1,
-	MD5
+	HASH_MD5
 };
 
 

Source/charon/transforms/hashers/hasher_sha1.c

@@ -206,22 +206,22 @@ static status_t get_hash(private_hasher_sha1_t *this, chunk_t chunk, u_int8_t *b
 static status_t allocate_hash(private_hasher_sha1_t *this, chunk_t chunk, chunk_t *hash)
 {
 	chunk_t allocated_hash;
-	allocated_hash.ptr = allocator_alloc(BLOCK_SIZE_SHA1);
-	allocated_hash.len = BLOCK_SIZE_SHA1;
-	if (allocated_hash.ptr == NULL)
-	{
-		return OUT_OF_RES;
-	}
 	
 	SHA1Update(this, chunk.ptr, chunk.len);
 	if (hash != NULL)
-	{
+	{	
+		allocated_hash.ptr = allocator_alloc(BLOCK_SIZE_SHA1);
+		allocated_hash.len = BLOCK_SIZE_SHA1;
+		if (allocated_hash.ptr == NULL)
+		{
+			return OUT_OF_RES;
+		}
 		SHA1Final(this, allocated_hash.ptr);
 		this->public.hasher_interface.reset(&(this->public.hasher_interface));
+		
+		*hash = allocated_hash;
 	}
 	
-	*hash = allocated_hash;
-	
 	return SUCCESS;
 }