-/* Copyright (C) 1997,1998,1999,2000,2001,2003, 2005
- Free Software Foundation, Inc.
+/* Copyright (C) 1997-2016 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
#include <sysdep.h>
#include <sys/syscall.h>
-#include "kernel-features.h"
-
-#ifdef __NR_ftruncate64
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
-/* The variable is shared between all wrappers around *truncate64 calls. */
-extern int __have_no_truncate64;
-#endif
-
-
/* Truncate the file FD refers to to LENGTH bytes. */
int
__ftruncate64 (int fd, off64_t length)
{
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
- if (! __have_no_truncate64)
-#endif
- {
- unsigned int low = length & 0xffffffff;
- unsigned int high = length >> 32;
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
- int saved_errno = errno;
-#endif
- int result = INLINE_SYSCALL (ftruncate64, 4, fd, 0,
- __LONG_LONG_PAIR (high, low));
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
- if (result != -1 || errno != ENOSYS)
-#endif
- return result;
-
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
- __set_errno (saved_errno);
- __have_no_truncate64 = 1;
-#endif
- }
-
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
- if ((off_t) length != length)
- {
- __set_errno (EINVAL);
- return -1;
- }
- return __ftruncate (fd, (off_t) length);
-#endif
+ unsigned int low = length & 0xffffffff;
+ unsigned int high = length >> 32;
+ int result = INLINE_SYSCALL (ftruncate64, 4, fd, 0,
+ __LONG_LONG_PAIR (high, low));
+ return result;
}
weak_alias (__ftruncate64, ftruncate64)
-
-#else
-/* Use the generic implementation. */
-# include <misc/ftruncate64.c>
-#endif