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 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
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 #include <sys/types.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <ctype.h>
37 #include <limits.h>
38 #include <userdefs.h>
39 #include <users.h>
40 #include <errno.h>
41 #include "messages.h"
42
43 extern int errmsg();
44 extern gid_t findnextgid();
45 extern int valid_gid(), add_group();
46
47 /*
48 * groupadd [-g gid [-o]] group
49 *
50 * This command adds new groups to the system. Arguments are:
51 *
52 * gid - a gid_t less than MAXUID
53 * group - a string of printable characters excluding colon(:) and less
54 * than MAXGLEN characters long.
55 */
56
57 char *cmdname = "groupadd";
58
59 int
main(int argc,char * argv[])60 main(int argc, char *argv[])
61 {
62 int ch; /* return from getopt */
63 gid_t gid; /* group id */
64 int oflag = 0; /* flags */
65 int rc;
66 char *gidstr = NULL; /* gid from command line */
67 char *grpname; /* group name from command line */
68 int warning;
69
70 while ((ch = getopt(argc, argv, "g:o")) != EOF)
71 switch (ch) {
72 case 'g':
73 gidstr = optarg;
74 break;
75 case 'o':
76 oflag++;
77 break;
78 case '?':
79 errmsg(M_AUSAGE);
80 exit(EX_SYNTAX);
81 }
82
83 if ((oflag && !gidstr) || optind != argc - 1) {
84 errmsg(M_AUSAGE);
85 exit(EX_SYNTAX);
86 }
87
88 grpname = argv[optind];
89
90 switch (valid_gname(grpname, NULL, &warning)) {
91 case INVALID:
92 errmsg(M_GRP_INVALID, grpname);
93 exit(EX_BADARG);
94 /*NOTREACHED*/
95 case NOTUNIQUE:
96 errmsg(M_GRP_USED, grpname);
97 exit(EX_NAME_EXISTS);
98 /*NOTREACHED*/
99 }
100 if (warning)
101 warningmsg(warning, grpname);
102
103 if (gidstr) {
104 /* Given a gid string - validate it */
105 char *ptr;
106
107 errno = 0;
108 gid = (gid_t)strtol(gidstr, &ptr, 10);
109
110 if (*ptr || errno == ERANGE) {
111 errmsg(M_GID_INVALID, gidstr);
112 exit(EX_BADARG);
113 }
114
115 switch (valid_gid(gid, NULL)) {
116 case RESERVED:
117 errmsg(M_RESERVED, gid);
118 break;
119
120 case NOTUNIQUE:
121 if (!oflag) {
122 errmsg(M_GRP_USED, gidstr);
123 exit(EX_ID_EXISTS);
124 }
125 break;
126
127 case INVALID:
128 errmsg(M_GID_INVALID, gidstr);
129 exit(EX_BADARG);
130
131 case TOOBIG:
132 errmsg(M_TOOBIG, gid);
133 exit(EX_BADARG);
134
135 }
136
137 } else {
138
139 if ((gid = findnextgid()) < 0) {
140 errmsg(M_GID_INVALID, "default id");
141 exit(EX_ID_EXISTS);
142 }
143
144 }
145
146 if ((rc = add_group(grpname, gid)) != EX_SUCCESS)
147 errmsg(M_UPDATE, "created");
148
149 return (rc);
150 }
151