xref: /titanic_50/usr/src/cmd/oamuser/lib/vgname.c (revision 549ec3fff108310966327d1dc9004551b63210b7)
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 (c) 1997, by Sun Microsystems, Inc.
24   * All rights reserved.
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"
32  
33  /*LINTLIBRARY*/
34  
35  #include	<sys/types.h>
36  #include	<stdio.h>
37  #include	<ctype.h>
38  #include	<userdefs.h>
39  #include	<users.h>
40  
41  /*
42   * validate string given as group name.
43   */
44  int
45  valid_gname(char *group, struct group **gptr, int *warning)
46  {
47  	struct group *t_gptr;
48  	char *ptr = group;
49  	char c;
50  	int len = 0;
51  	int badchar = 0;
52  
53  	*warning = 0;
54  	if (!group || !*group)
55  		return (INVALID);
56  
57  	for (c = *ptr; c != NULL; ptr++, c = *ptr) {
58  		len++;
59  		if (!isprint(c) || (c == ':') || (c == '\n'))
60  			return (INVALID);
61  		if (!(islower(c) || isdigit(c)))
62  			badchar++;
63  	}
64  
65  	/*
66  	 * XXX constraints causes some operational/compatibility problem.
67  	 * This has to be revisited in the future as ARC/standards issue.
68  	 */
69  	if (len > MAXGLEN - 1)
70  		*warning = *warning | WARN_NAME_TOO_LONG;
71  	if (badchar != 0)
72  		*warning = *warning | WARN_BAD_GROUP_NAME;
73  
74  	if ((t_gptr = getgrnam(group)) != NULL) {
75  		if (gptr) *gptr = t_gptr;
76  		return (NOTUNIQUE);
77  	}
78  	return (UNIQUE);
79  }
80