[thirdparty/glibc.git] / ports / sysdeps / unix / sysv / linux / generic / wordsize-32 / ftruncate64.c

/* Copyright (C) 2011-2014 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.

   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 <sys/types.h>
#include <unistd.h>

/* Truncate the file FD refers to to LENGTH bytes.  */
int
__ftruncate64 (int fd, off64_t length)
{
  unsigned int low = length & 0xffffffff;
  unsigned int high = length >> 32;
  return INLINE_SYSCALL (ftruncate64, __ALIGNMENT_COUNT (3, 4), fd,
                         __ALIGNMENT_ARG __LONG_LONG_PAIR (high, low));
}
weak_alias (__ftruncate64, ftruncate64)
Commit	Line	Data
d4697bc9	1	/* Copyright (C) 2011-2014 Free Software Foundation, Inc.
a63c7fa1 CM	2	This file is part of the GNU C Library.
	3	Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
	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
ab84e3ff PE	16	License along with the GNU C Library. If not, see
ab84e3ff PE	17	<http://www.gnu.org/licenses/>. */
a63c7fa1 CM	18
	19	#include <errno.h>
	20	#include <sys/types.h>
	21	#include <unistd.h>
	22
	23	/* Truncate the file FD refers to to LENGTH bytes. */
	24	int
	25	__ftruncate64 (int fd, off64_t length)
	26	{
	27	unsigned int low = length & 0xffffffff;
	28	unsigned int high = length >> 32;
	29	return INLINE_SYSCALL (ftruncate64, __ALIGNMENT_COUNT (3, 4), fd,
	30	__ALIGNMENT_ARG __LONG_LONG_PAIR (high, low));
	31	}
	32	weak_alias (__ftruncate64, ftruncate64)