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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
22/*	  All Rights Reserved  	*/
23
24
25/*
26 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
27 * Use is subject to license terms.
28 */
29
30#include <sys/types.h>
31#include <sys/stat.h>
32#include <stdio.h>
33#include <ctype.h>
34#include <limits.h>
35#include <pwd.h>
36#include <project.h>
37#include <string.h>
38#include <sys/types.h>
39#include <sys/stat.h>
40#include <userdefs.h>
41#include <stdlib.h>
42#include <errno.h>
43#include <unistd.h>
44#include <strings.h>
45#include "users.h"
46#include "messages.h"
47#include "funcs.h"
48
49/*******************************************************************************
50 *  userdel [-r] login
51 *
52 *	This command deletes user logins.  Arguments are:
53 *
54 *	-r - when given, this option removes home directory & its contents
55 *
56 *	login - a string of printable chars except colon (:)
57 ******************************************************************************/
58
59extern int check_perm(), isbusy();
60extern int rm_files(), call_passmgmt(), edit_group();
61
62static char *logname;			/* login name to delete */
63static char *nargv[20];		/* arguments for execvp of passmgmt */
64
65char *cmdname;
66
67int
68main(int argc, char **argv)
69{
70	int ch, ret = 0, rflag = 0, argindex, tries;
71	struct passwd *pstruct;
72	struct stat statbuf;
73#ifndef att
74	FILE *pwf;		/* fille ptr for opened passwd file */
75#endif
76	char *usertype = NULL;
77	int rc;
78
79	cmdname = argv[0];
80
81	if( geteuid() != 0 ) {
82		errmsg( M_PERM_DENIED );
83		exit( EX_NO_PERM );
84	}
85
86	opterr = 0;			/* no print errors from getopt */
87	usertype = getusertype(argv[0]);
88
89	while( (ch = getopt(argc, argv, "r")) != EOF ) {
90		switch(ch) {
91			case 'r':
92				rflag++;
93				break;
94			case '?':
95				if (is_role(usertype))
96					errmsg( M_DRUSAGE );
97				else
98					errmsg( M_DUSAGE );
99				exit( EX_SYNTAX );
100		}
101	}
102
103	if( optind != argc - 1 ) {
104		if (is_role(usertype))
105			errmsg( M_DRUSAGE );
106		else
107			errmsg( M_DUSAGE );
108		exit( EX_SYNTAX );
109	}
110
111	logname = argv[optind];
112
113#ifdef att
114	pstruct = getpwnam(logname);
115#else
116	/*
117	 * Do this with fgetpwent to make sure we are only looking on local
118	 * system (since passmgmt only works on local system).
119	 */
120	if ((pwf = fopen("/etc/passwd", "r")) == NULL) {
121		errmsg( M_OOPS, "open", "/etc/passwd");
122		exit(EX_FAILURE);
123	}
124	while ((pstruct = fgetpwent(pwf)) != NULL)
125		if (strcmp(pstruct->pw_name, logname) == 0)
126			break;
127
128	fclose(pwf);
129#endif
130
131	if (pstruct == NULL) {
132		errmsg( M_EXIST, logname );
133		exit( EX_NAME_NOT_EXIST );
134	}
135
136	if( isbusy(logname) ) {
137		errmsg( M_BUSY, logname, "remove" );
138		exit( EX_BUSY );
139	}
140
141	/* that's it for validations - now do the work */
142	/* set up arguments to  passmgmt in nargv array */
143	nargv[0] = PASSMGMT;
144	nargv[1] = "-d";	/* delete */
145	argindex = 2;		/* next argument */
146
147	/* finally - login name */
148	nargv[argindex++] = logname;
149
150	/* set the last to null */
151	nargv[argindex++] = NULL;
152
153	/* remove home directory */
154	if( rflag ) {
155		/* Check Permissions */
156		if( stat( pstruct->pw_dir, &statbuf ) ) {
157			errmsg(M_OOPS, "find status about home directory",
158			    strerror(errno));
159			exit( EX_HOMEDIR );
160		}
161
162		if( check_perm( statbuf, pstruct->pw_uid, pstruct->pw_gid,
163		    S_IWOTH|S_IXOTH ) != 0 ) {
164			errmsg( M_NO_PERM, logname, pstruct->pw_dir );
165			exit( EX_HOMEDIR );
166		}
167
168		if( rm_files(pstruct->pw_dir, logname) != EX_SUCCESS )
169			exit( EX_HOMEDIR );
170	}
171
172	/* now call passmgmt */
173	ret = PEX_FAILED;
174	for( tries = 3; ret != PEX_SUCCESS && tries--; ) {
175		switch( ret = call_passmgmt( nargv ) ) {
176		case PEX_SUCCESS:
177			ret = edit_group( logname, (char *)0, (int **)0, 1 );
178			if( ret != EX_SUCCESS )
179				errmsg( M_UPDATE, "deleted" );
180			break;
181
182		case PEX_BUSY:
183			break;
184
185		case PEX_HOSED_FILES:
186			errmsg( M_HOSED_FILES );
187			exit( EX_INCONSISTENT );
188			break;
189
190		case PEX_SYNTAX:
191		case PEX_BADARG:
192			/* should NEVER occur that passmgmt usage is wrong */
193			if (is_role(usertype))
194				errmsg( M_DRUSAGE );
195			else
196				errmsg( M_DUSAGE );
197			exit( EX_SYNTAX );
198			break;
199
200		case PEX_BADUID:
201			/* uid is used - shouldn't happen but print message anyway */
202			errmsg( M_UID_USED, pstruct->pw_uid );
203			exit( EX_ID_EXISTS );
204			break;
205
206		case PEX_BADNAME:
207			/* invalid loname */
208			errmsg( M_USED, logname);
209			exit( EX_NAME_EXISTS );
210			break;
211
212		default:
213			errmsg( M_UPDATE, "deleted" );
214			exit( ret );
215			break;
216		}
217	}
218	if( tries == 0 )
219		errmsg( M_UPDATE, "deleted" );
220
221/*
222 * Now, remove this user from all project entries
223 */
224
225	rc = edit_project(logname, (char *)0, (projid_t **)0, 1);
226	if (rc != EX_SUCCESS) {
227		errmsg(M_UPDATE, "modified");
228		exit(rc);
229	}
230
231	exit( ret );
232	/*NOTREACHED*/
233}
234