xref: /illumos-gate/usr/src/lib/libpkg/common/path_valid.c (revision a196c3ffe35a9a1589267b660ce6c2ff2ccab5e9)
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 (c) 2017 Peter Tribble.
24   */
25  
26  /*
27   * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
28   * Use is subject to license terms.
29   */
30  
31  /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
32  /* All Rights Reserved */
33  
34  #include <limits.h>
35  #include <string.h>
36  #include <sys/types.h>
37  
38  /*
39   * Name:		path_valid
40   * Description:	Checks a string for being a valid path
41   *
42   * Arguments:	path - path to validate
43   *
44   * Returns :	B_TRUE - success, B_FALSE otherwise.
45   *		B_FALSE means path was null, too long (>PATH_MAX),
46   *		or too short (<1)
47   */
48  boolean_t
49  path_valid(char *path)
50  {
51  	if (path == NULL) {
52  		return (B_FALSE);
53  	} else if (strlen(path) > PATH_MAX) {
54  		return (B_FALSE);
55  	} else if (strlen(path) >= 1) {
56  		return (B_TRUE);
57  	} else {
58  		/* path < 1 */
59  		return (B_FALSE);
60  	}
61  }
62