/* Invoke open, but avoid some glitches. Copyright (C) 2005-2006, 2008-2024 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /* Written by Paul Eggert. */ #include #include "fcntl-safer.h" #include #include #include "unistd-safer.h" int open_safer (char const *file, int flags, ...) { mode_t mode = 0; if (flags & O_CREAT) { va_list ap; va_start (ap, flags); /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4 creates crashing code when 'mode_t' is smaller than 'int'. */ mode = va_arg (ap, PROMOTED_MODE_T); va_end (ap); } return fd_safer (open (file, flags, mode)); }