glibc/sysdeps/mach/hurd/truncate.c
Ulrich Drepper f516442913 Update.
2004-06-30  Ulrich Drepper  <drepper@redhat.com>

	* include/net/if.h: Handle if_nameindex and if_freenameindex with
	libc_proto_hidden.
	* sysdeps/unix/sysv/linux/netlinkaccess.h: New file.
	* sysdeps/unix/sysv/linux/ifaddrs.c: Export netlink handling functions.
	* sysdeps/unix/sysv/linux/if_index.c (if_nameindex): Implement using
	netlink if possible.  Fall back on ioctl method if necessary.

	* include/unistd.h: Declare __truncate.
	* sysdeps/generic/truncate.c: Also define __truncate.
	* sysdeps/mach/hurd/truncate.c: Likewise.
	* sysdeps/unix/common/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/truncate64.c: Use __truncate, not truncate.
2004-06-30 07:43:11 +00:00

45 lines
1.4 KiB
C

/* Copyright (C) 1991,92,93,94,95,97,98,2004 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#include <hurd.h>
/* Truncate FILE_NAME to LENGTH bytes. */
int
__truncate (file_name, length)
const char *file_name;
off_t length;
{
error_t err;
file_t file = __file_name_lookup (file_name, O_WRITE, 0);
if (file == MACH_PORT_NULL)
return -1;
err = __file_set_size (file, length);
__mach_port_deallocate (__mach_task_self (), file);
if (err)
return __hurd_fail (err);
return 0;
}
weak_alias (__truncate, truncate)