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 2004 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" /* SVr4.0 1.3 */ 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 main(argc, argv) 61 int argc; 62 char *argv[]; 63 { 64 int ch; /* return from getopt */ 65 gid_t gid; /* group id */ 66 int oflag = 0; /* flags */ 67 int valret; /* return from valid_gid() */ 68 char *gidstr = NULL; /* gid from command line */ 69 char *newname = NULL; /* new group name with -n option */ 70 char *grpname; /* group name from command line */ 71 int warning; 72 73 oflag = 0; /* flags */ 74 75 while ((ch = getopt(argc, argv, "g:on:")) != EOF) { 76 switch (ch) { 77 case 'g': 78 gidstr = optarg; 79 break; 80 case 'o': 81 oflag++; 82 break; 83 case 'n': 84 newname = optarg; 85 break; 86 case '?': 87 errmsg(M_MUSAGE); 88 exit(EX_SYNTAX); 89 } 90 } 91 92 if ((oflag && !gidstr) || optind != argc - 1) { 93 errmsg(M_MUSAGE); 94 exit(EX_SYNTAX); 95 } 96 97 grpname = argv[optind]; 98 99 if (gidstr) { 100 /* convert gidstr to integer */ 101 char *ptr; 102 103 errno = 0; 104 gid = (gid_t)strtol(gidstr, &ptr, 10); 105 106 if (*ptr || errno == ERANGE) { 107 errmsg(M_GID_INVALID, gidstr); 108 exit(EX_BADARG); 109 } 110 111 switch (valid_gid(gid, NULL)) { 112 case RESERVED: 113 errmsg(M_RESERVED, gid); 114 break; 115 116 case NOTUNIQUE: 117 if (!oflag) { 118 errmsg(M_GRP_USED, gidstr); 119 exit(EX_ID_EXISTS); 120 } 121 break; 122 123 case INVALID: 124 errmsg(M_GID_INVALID, gidstr); 125 exit(EX_BADARG); 126 /*NOTREACHED*/ 127 128 case TOOBIG: 129 errmsg(M_TOOBIG, gid); 130 exit(EX_BADARG); 131 /*NOTREACHED*/ 132 133 } 134 135 } else gid = -1; 136 137 if (newname) { 138 switch (valid_gname(newname, NULL, &warning)) { 139 case INVALID: 140 errmsg(M_GRP_INVALID, newname); 141 exit(EX_BADARG); 142 case NOTUNIQUE: 143 errmsg(M_GRP_USED, newname); 144 exit(EX_NAME_EXISTS); 145 } 146 if (warning) 147 warningmsg(warning, newname); 148 } 149 150 if ((valret = mod_group(grpname, gid, newname)) != EX_SUCCESS) { 151 if (valret == EX_NAME_NOT_EXIST) 152 errmsg(M_NO_GROUP, grpname); 153 else 154 errmsg(M_UPDATE, "modified"); 155 } 156 157 return (valret); 158 } 159