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 #include <sys/types.h> 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <ctype.h> 34 #include <limits.h> 35 #include <userdefs.h> 36 #include <users.h> 37 #include <errno.h> 38 #include "messages.h" 39 40 /* 41 * groupmod -g gid [-o] | -n name group 42 * 43 * This command modifies groups on the system. Arguments are: 44 * 45 * gid - a gid_t less than UID_MAX 46 * name - a string of printable characters excluding colon (:) and less 47 * than MAXGLEN characters long. 48 * group - a string of printable characters excluding colon(:) and less 49 * than MAXGLEN characters long. 50 */ 51 52 extern int valid_gid(), mod_group(); 53 extern void errmsg(); 54 55 char *cmdname = "groupmod"; 56 57 int 58 main(int argc, char *argv[]) 59 { 60 int ch; /* return from getopt */ 61 gid_t gid; /* group id */ 62 int oflag = 0; /* flags */ 63 int valret; /* return from valid_gid() */ 64 char *gidstr = NULL; /* gid from command line */ 65 char *newname = NULL; /* new group name with -n option */ 66 char *grpname; /* group name from command line */ 67 int warning; 68 69 oflag = 0; /* flags */ 70 71 while ((ch = getopt(argc, argv, "g:on:")) != EOF) { 72 switch (ch) { 73 case 'g': 74 gidstr = optarg; 75 break; 76 case 'o': 77 oflag++; 78 break; 79 case 'n': 80 newname = optarg; 81 break; 82 case '?': 83 errmsg(M_MUSAGE); 84 exit(EX_SYNTAX); 85 } 86 } 87 88 if ((oflag && !gidstr) || optind != argc - 1) { 89 errmsg(M_MUSAGE); 90 exit(EX_SYNTAX); 91 } 92 93 grpname = argv[optind]; 94 95 if (gidstr) { 96 /* convert gidstr to integer */ 97 char *ptr; 98 99 errno = 0; 100 gid = (gid_t)strtol(gidstr, &ptr, 10); 101 102 if (*ptr || errno == ERANGE) { 103 errmsg(M_GID_INVALID, gidstr); 104 exit(EX_BADARG); 105 } 106 107 switch (valid_gid(gid, NULL)) { 108 case RESERVED: 109 errmsg(M_RESERVED, gid); 110 break; 111 112 case NOTUNIQUE: 113 if (!oflag) { 114 errmsg(M_GRP_USED, gidstr); 115 exit(EX_ID_EXISTS); 116 } 117 break; 118 119 case INVALID: 120 errmsg(M_GID_INVALID, gidstr); 121 exit(EX_BADARG); 122 /*NOTREACHED*/ 123 124 case TOOBIG: 125 errmsg(M_TOOBIG, gid); 126 exit(EX_BADARG); 127 /*NOTREACHED*/ 128 129 } 130 131 } else gid = -1; 132 133 if (newname) { 134 switch (valid_gname(newname, NULL, &warning)) { 135 case INVALID: 136 errmsg(M_GRP_INVALID, newname); 137 exit(EX_BADARG); 138 case NOTUNIQUE: 139 errmsg(M_GRP_USED, newname); 140 exit(EX_NAME_EXISTS); 141 } 142 if (warning) 143 warningmsg(warning, newname); 144 } 145 146 if ((valret = mod_group(grpname, gid, newname)) != EX_SUCCESS) { 147 if (valret == EX_NAME_NOT_EXIST) 148 errmsg(M_NO_GROUP, grpname); 149 else 150 errmsg(M_UPDATE, "modified"); 151 } 152 153 return (valret); 154 } 155