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 /* 44 * groupmod -g gid [-o] | -n name group 45 * 46 * This command modifies groups on the system. Arguments are: 47 * 48 * gid - a gid_t less than UID_MAX 49 * name - a string of printable characters excluding colon (:) and less 50 * than MAXGLEN characters long. 51 * group - a string of printable characters excluding colon(:) and less 52 * than MAXGLEN characters long. 53 */ 54 55 extern int valid_gid(), mod_group(); 56 extern void errmsg(); 57 58 char *cmdname = "groupmod"; 59 60 int 61 main(int argc, char *argv[]) 62 { 63 int ch; /* return from getopt */ 64 gid_t gid; /* group id */ 65 int oflag = 0; /* flags */ 66 int valret; /* return from valid_gid() */ 67 char *gidstr = NULL; /* gid from command line */ 68 char *newname = NULL; /* new group name with -n option */ 69 char *grpname; /* group name from command line */ 70 int warning; 71 72 oflag = 0; /* flags */ 73 74 while ((ch = getopt(argc, argv, "g:on:")) != EOF) { 75 switch (ch) { 76 case 'g': 77 gidstr = optarg; 78 break; 79 case 'o': 80 oflag++; 81 break; 82 case 'n': 83 newname = optarg; 84 break; 85 case '?': 86 errmsg(M_MUSAGE); 87 exit(EX_SYNTAX); 88 } 89 } 90 91 if ((oflag && !gidstr) || optind != argc - 1) { 92 errmsg(M_MUSAGE); 93 exit(EX_SYNTAX); 94 } 95 96 grpname = argv[optind]; 97 98 if (gidstr) { 99 /* convert gidstr to integer */ 100 char *ptr; 101 102 errno = 0; 103 gid = (gid_t)strtol(gidstr, &ptr, 10); 104 105 if (*ptr || errno == ERANGE) { 106 errmsg(M_GID_INVALID, gidstr); 107 exit(EX_BADARG); 108 } 109 110 switch (valid_gid(gid, NULL)) { 111 case RESERVED: 112 errmsg(M_RESERVED, gid); 113 break; 114 115 case NOTUNIQUE: 116 if (!oflag) { 117 errmsg(M_GRP_USED, gidstr); 118 exit(EX_ID_EXISTS); 119 } 120 break; 121 122 case INVALID: 123 errmsg(M_GID_INVALID, gidstr); 124 exit(EX_BADARG); 125 /*NOTREACHED*/ 126 127 case TOOBIG: 128 errmsg(M_TOOBIG, gid); 129 exit(EX_BADARG); 130 /*NOTREACHED*/ 131 132 } 133 134 } else gid = -1; 135 136 if (newname) { 137 switch (valid_gname(newname, NULL, &warning)) { 138 case INVALID: 139 errmsg(M_GRP_INVALID, newname); 140 exit(EX_BADARG); 141 case NOTUNIQUE: 142 errmsg(M_GRP_USED, newname); 143 exit(EX_NAME_EXISTS); 144 } 145 if (warning) 146 warningmsg(warning, newname); 147 } 148 149 if ((valret = mod_group(grpname, gid, newname)) != EX_SUCCESS) { 150 if (valret == EX_NAME_NOT_EXIST) 151 errmsg(M_NO_GROUP, grpname); 152 else 153 errmsg(M_UPDATE, "modified"); 154 } 155 156 return (valret); 157 } 158