glibc/sysdeps/unix/sysv/linux/openat64_nocancel.c
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2019-01-01 00:11:28 +00:00

52 lines
1.5 KiB
C

/* Linux openat syscall implementation, LFS, non-cancellable.
Copyright (C) 2018-2019 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 <fcntl.h>
#include <stdarg.h>
#include <sysdep-cancel.h>
#include <not-cancel.h>
#ifdef __OFF_T_MATCHES_OFF64_T
# define EXTRA_OPEN_FLAGS 0
#else
# define EXTRA_OPEN_FLAGS O_LARGEFILE
#endif
int
__openat64_nocancel (int fd, const char *file, int oflag, ...)
{
mode_t mode = 0;
if (__OPEN_NEEDS_MODE (oflag))
{
va_list arg;
va_start (arg, oflag);
mode = va_arg (arg, mode_t);
va_end (arg);
}
return INLINE_SYSCALL_CALL (openat, fd, file, oflag | EXTRA_OPEN_FLAGS,
mode);
}
hidden_def (__openat64_nocancel)
#ifdef __OFF_T_MATCHES_OFF64_T
strong_alias (__openat64_nocancel, __openat_nocancel)
hidden_def (__openat_nocancel)
#endif