auth: db-lua - Remove unnecessary pushnil usage

lua_pushstring is NULL-safe

diff --git a/src/auth/db-lua.c b/src/auth/db-lua.c
index 7776bca64bc520832bcf7badf24124ebe457d2ab..b2f4a1ef02948316d6b7af071f8f5bd32516bd01 100644 (file)
--- a/src/auth/db-lua.c
+++ b/src/auth/db-lua.c
@@ -171,12 +171,7 @@ static int auth_request_lua_passdb(lua_State *L)
                return 1;
        }
 
-       const char *value = auth_fields_find(request->extra_fields, key);
-
-       if (value == NULL)
-               lua_pushnil(L);
-       else
-               lua_pushstring(L, value);
+       lua_pushstring(L, auth_fields_find(request->extra_fields, key));
        return 1;
 }
 
@@ -192,11 +187,7 @@ static int auth_request_lua_userdb(lua_State *L)
                return 1;
        }
 
-       const char *value = auth_fields_find(request->userdb_reply, key);
-       if (value == NULL)
-               lua_pushnil(L);
-       else
-               lua_pushstring(L, value);
+       lua_pushstring(L, auth_fields_find(request->userdb_reply, key));
        return 1;
 }
 
@@ -234,10 +225,7 @@ static int auth_request_lua_password_verify(lua_State *L)
        }
 
        lua_pushnumber(script->L, ret);
-       if (error != NULL)
-               lua_pushstring(script->L, error);
-       else
-               lua_pushnil(script->L);
+       lua_pushstring(script->L, error);
 
        return 2;
 }
@@ -269,10 +257,7 @@ static int auth_request_lua_index(lua_State *L)
        /* check if it's variable */
        for(unsigned int i = 0; i < AUTH_REQUEST_VAR_TAB_COUNT; i++) {
                if (null_strcmp(table[i].long_key, key) == 0) {
-                       if (table[i].value != NULL)
-                               lua_pushstring(L, table[i].value);
-                       else
-                               lua_pushnil(L);
+                       lua_pushstring(L, table[i].value);
                        return 1;
                }
        }