xref: /illumos-gate/usr/src/cmd/make/lib/vroot/truncate.cc (revision 10d63b7d)
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  * Copyright 1993 Sun Microsystems, Inc. All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 
27 #include <unistd.h>
28 
29 extern int truncate(const char *path, off_t length);
30 
31 #include <vroot/vroot.h>
32 #include <vroot/args.h>
33 
truncate_thunk(char * path)34 static int	truncate_thunk(char *path)
35 {
36 	vroot_result= truncate(path, vroot_args.truncate.length);
37 	return(vroot_result == 0);
38 }
39 
truncate_vroot(char * path,int length,pathpt vroot_path,pathpt vroot_vroot)40 int	truncate_vroot(char *path, int length, pathpt vroot_path, pathpt vroot_vroot)
41 {
42 	vroot_args.truncate.length= length;
43 	translate_with_thunk(path, truncate_thunk, vroot_path, vroot_vroot, rw_read);
44 	return(vroot_result);
45 }
46