#define SHA1_HASH_SIZE 20
+extern const u8 zero_hash[SHA1_HASH_SIZE];
+
static inline void copy_hash(u8 dest[SHA1_HASH_SIZE],
const u8 src[SHA1_HASH_SIZE])
{
static inline bool is_zero_hash(const u8 hash[SHA1_HASH_SIZE])
{
- for (u8 i = 0; i < SHA1_HASH_SIZE / 4; i++)
- if (((u32*)hash)[i])
- return false;
+ if (hash)
+ for (u8 i = 0; i < SHA1_HASH_SIZE / 4; i++)
+ if (((u32*)hash)[i])
+ return false;
return true;
}
-static void zero_hash(u8 hash[SHA1_HASH_SIZE])
+static inline void zero_out_hash(u8 hash[SHA1_HASH_SIZE])
{
memset(hash, 0, SHA1_HASH_SIZE);
}