1 /* Generate a temporary file descriptor. Linux version. 2 Copyright (C) 2017-2021 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <stdio.h> 20 #include <fcntl.h> 21 #include <errno.h> 22 #include <string.h> 23 24 int __gen_tempfd(int flags)25__gen_tempfd (int flags) 26 { 27 int fd = __open (P_tmpdir, O_RDWR | O_TMPFILE | O_EXCL | flags, 28 S_IRUSR | S_IWUSR); 29 if (fd < 0 && errno == ENOENT && strcmp (P_tmpdir, "/tmp") != 0) 30 fd = __open ("/tmp", O_RDWR | O_TMPFILE | O_EXCL | flags, 31 S_IRUSR | S_IWUSR); 32 33 return fd; 34 } 35 libc_hidden_def (__gen_tempfd) 36