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 */
42 int
valid_gname(char * group,struct group ** gptr,int * warning)43 valid_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