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
valid_gname(char * group,struct group ** gptr,int * warning)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