xref: /illumos-gate/usr/src/cmd/lp/lib/access/files.c (revision 22028508fd28d36ff74dc02c5774a8ba1f0db045)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1993 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.10	*/
32 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
33 
34 #include "errno.h"
35 #include "stdio.h"
36 #include "string.h"
37 #include "unistd.h"
38 #include "stdlib.h"
39 
40 #include "lp.h"
41 
42 /**
43  ** getaccessfile() - BUILD NAME OF ALLOW OR DENY FILE
44  **/
45 
46 char *
47 #if	defined(__STDC__)
48 getaccessfile (
49 	char *			dir,
50 	char *			name,
51 	char *			prefix,
52 	char *			base
53 )
54 #else
55 getaccessfile (dir, name, prefix, base)
56 	char			*dir,
57 				*name,
58 				*prefix,
59 				*base;
60 #endif
61 {
62 	register char		*parent,
63 				*file,
64 				*f;
65 
66 	/*
67 	 * It makes no sense talking about the access files if
68 	 * the directory for the form or printer doesn't exist.
69 	 */
70 	parent = makepath(dir, name, (char *)0);
71 	if (!parent)
72 		return (0);
73 	if (Access(parent, F_OK) == -1) {
74 		Free(parent);
75 		return (0);
76 	}
77 
78 	if (!(f = makestr(prefix, base, (char *)0))) {
79 		Free(parent);
80 		errno = ENOMEM;
81 		return (0);
82 	}
83 	file = makepath(parent, f, (char *)0);
84 	Free (f);
85 	Free (parent);
86 
87 	return (file);
88 }
89