Update copyright dates with scripts/update-copyrights.

[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / ftruncate64.c

diff --git a/sysdeps/unix/sysv/linux/ftruncate64.c b/sysdeps/unix/sysv/linux/ftruncate64.c
index 6644b0523c32104ae0ec06f826615e556ff7c249..ec38e8e9e21a6b81c19c075ce3e6450d1b6853fa 100644 (file)
--- a/sysdeps/unix/sysv/linux/ftruncate64.c
+++ b/sysdeps/unix/sysv/linux/ftruncate64.c
@@ -1,71 +1,38 @@
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2019 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 Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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
-   Library General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   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 <sys/types.h>
-#include <errno.h>
 #include <unistd.h>
-
 #include <sysdep.h>
-#include <sys/syscall.h>
-
-#include "kernel-features.h"
-
-#ifdef __NR_ftruncate64
-static int have_no_ftruncate64;
-
-extern int __syscall_ftruncate64 (int fd, int high_length, int low_length);
+#include <errno.h>
 
+#ifndef __NR_ftruncate64
+# define __NR_ftruncate64 __NR_ftruncate
+#endif
 
-/* Truncate the file FD refers to to LENGTH bytes.  */
+/* Truncate the file referenced by FD to LENGTH bytes.  */
 int
-ftruncate64 (fd, length)
-     int fd;
-     off64_t length;
+__ftruncate64 (int fd, off64_t length)
 {
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
-  if (! have_no_ftruncate64)
-#endif
-    {
-      unsigned int low = length & 0xffffffff;
-      unsigned int high = length >> 32;
-      int result = INLINE_SYSCALL (ftruncate64, 3, fd, low, high);
-
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
-      if (result != -1 || errno != ENOSYS)
-#endif
-       return result;
-
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
-      have_no_ftruncate64 = 1;
-#endif
-    }
-
-#ifndef __ASSUME_TRUNCATE64_SYSCALL
-  if ((off_t) length != length)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-  return __ftruncate (fd, (off_t) length);
-#endif
+  return INLINE_SYSCALL_CALL (ftruncate64, fd,
+                             __ALIGNMENT_ARG SYSCALL_LL64 (length));
 }
+weak_alias (__ftruncate64, ftruncate64)
 
-#else
-/* Use the generic implementation.  */
-# include <sysdeps/generic/ftruncate64.c>
+#ifdef __OFF_T_MATCHES_OFF64_T
+weak_alias (__ftruncate64, __ftruncate)
+weak_alias (__ftruncate64, ftruncate);
 #endif