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