diff options
Diffstat (limited to 'REORG.TODO/io/openat.c')
-rw-r--r-- | REORG.TODO/io/openat.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/REORG.TODO/io/openat.c b/REORG.TODO/io/openat.c new file mode 100644 index 0000000000..529f418da2 --- /dev/null +++ b/REORG.TODO/io/openat.c @@ -0,0 +1,79 @@ +/* Copyright (C) 2005-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <fcntl.h> +#include <stdarg.h> +#include <stddef.h> +#include <stdio.h> +#include <sys/stat.h> +#include <kernel-features.h> + +/* Some mostly-generic code (e.g. sysdeps/posix/getcwd.c) uses this variable + if __ASSUME_ATFCTS is not defined. */ +#ifndef __ASSUME_ATFCTS +int __have_atfcts; +#endif + +/* Open FILE with access OFLAG. Interpret relative paths relative to + the directory associated with FD. If O_CREAT or O_TMPFILE is in OFLAG, a + third argument is the file protection. */ +int +__openat (int fd, const char *file, int oflag, ...) +{ + int mode; + + if (file == NULL) + { + __set_errno (EINVAL); + return -1; + } + + if (fd != AT_FDCWD && file[0] != '/') + { + /* Check FD is associated with a directory. */ + struct stat64 st; + if (__fxstat64 (_STAT_VER, fd, &st) != 0) + return -1; + + if (!S_ISDIR (st.st_mode)) + { + __set_errno (ENOTDIR); + return -1; + } + } + + if (__OPEN_NEEDS_MODE (oflag)) + { + va_list arg; + va_start (arg, oflag); + mode = va_arg (arg, int); + va_end (arg); + + ignore_value (mode); + } + + __set_errno (ENOSYS); + return -1; +} +libc_hidden_def (__openat) +weak_alias (__openat, openat) +stub_warning (openat) + +/* __openat_2 is a generic wrapper that calls __openat. + So give a stub warning for that symbol too. */ +stub_warning (__openat_2) |