diff --git a/src/auth.c b/src/auth.c
index 69dd3c3..6d94b46 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -552,14 +552,14 @@ int acl_password_verify(struct acl_handle* acl, struct user* user, const char* p
 	uint64_t tiger_res[3];
 	
 	if (!password || !user || strlen(password) != MAX_CID_LEN)
-		return password_invalid;
+		return 0;
 
 	access = acl_get_access_info(acl, user->id.nick);
 	if (!access || !access->password)
-		return password_invalid;
+		return 0;
 
 	if (TIGERSIZE+strlen(access->password) >= 1024)
-		return password_invalid;
+		return 0;
 
 	challenge = acl_password_generate_challenge(acl, user);
 
@@ -574,9 +574,9 @@ int acl_password_verify(struct acl_handle* acl, struct user* user, const char* p
 
 	if (strcasecmp(password, password_calc) == 0)
 	{
-		return password_ok;
+		return 1;
 	}
-	return password_invalid;
+	return 0;
 }
 
 
diff --git a/src/auth.h b/src/auth.h
index e3c57d1..09ddb7c 100644
--- a/src/auth.h
+++ b/src/auth.h
@@ -24,18 +24,6 @@ struct hub_config;
 struct user;
 struct ip_addr_encap;
 
-enum password_status
-{
-	password_invalid  = 0,
-	password_ok       = 1,
-};
-
-enum acl_status
-{
-	acl_not_found       = 0,
-	acl_found           = 1,
-};
-
 enum user_credentials
 {
 	cred_none,                 /**<<< "User has no credentials (not yet logged in)" */
@@ -93,6 +81,13 @@ extern int acl_user_unban_cid(struct acl_handle* handle, const char* cid);
 extern int acl_check_ip_range(struct ip_addr_encap* addr, struct ip_ban_record* info);
 
 extern const char* acl_password_generate_challenge(struct acl_handle* acl, struct user* user);
+
+/**
+ * Verify a password.
+ *
+ * @param password the hashed password (based on the nonce).
+ * @return 1 if the password matches, or 0 if the password is incorrect.
+ */
 extern int acl_password_verify(struct acl_handle* acl, struct user* user, const char* password);
 
 #endif /* HAVE_UHUB_ACL_H */