Function getstr

lua/ltypes.c:1424–1432

}

static void getstr(Lua lua, const char **s, int i)
{
    *s = NULL;
    dbtypes_enum t = luabb_dbtype(lua, i);
    if (t == DBTYPES_CSTRING)
        *s = (((const lua_cstring_t *)lua_topointer(lua, i))->val);
    else if (lua_isstring(lua, i))
        *s = lua_tostring(lua, i);
}

static void getstrs(Lua lua, const char **s1, const char **s2)
{