1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28 
  29 #include <errno.h>
  30 #include <unistd.h>
  31 #include <sys/lx_types.h>
  32 #include <sys/lx_misc.h>
  33 
  34 /*
  35  * On Solaris, truncate() and ftruncate() are implemented in libc, so these are
  36  * layered on those interfaces.
  37  */
  38 
  39 int
  40 lx_truncate(uintptr_t path, uintptr_t length)
  41 {
  42         return (truncate((const char *)path, (off_t)length) == 0 ? 0 : -errno);
  43 }
  44 
  45 int
  46 lx_ftruncate(uintptr_t fd, uintptr_t length)
  47 {
  48         return (ftruncate((int)fd, (off_t)length) == 0 ? 0 : -errno);
  49 }
  50 
  51 int
  52 lx_truncate64(uintptr_t path, uintptr_t length_lo, uintptr_t length_hi)
  53 {
  54         return (truncate64((const char *)path,
  55             LX_32TO64(length_lo, length_hi)) == 0 ? 0 : -errno);
  56 }
  57 
  58 int
  59 lx_ftruncate64(uintptr_t fd, uintptr_t length_lo, uintptr_t length_hi)
  60 {
  61         return (ftruncate64((int)fd,
  62             LX_32TO64(length_lo, length_hi)) == 0 ? 0 : -errno);
  63 }