1 /* $NetBSD: ldapwhoami.c,v 1.3 2021/08/14 16:14:49 christos Exp $ */
2
3 /* ldapwhoami.c -- a tool for asking the directory "Who Am I?" */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 1998-2021 The OpenLDAP Foundation.
8 * Portions Copyright 1998-2003 Kurt D. Zeilenga.
9 * Portions Copyright 1998-2001 Net Boolean Incorporated.
10 * Portions Copyright 2001-2003 IBM Corporation.
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted only as authorized by the OpenLDAP
15 * Public License.
16 *
17 * A copy of this license is available in the file LICENSE in the
18 * top-level directory of the distribution or, alternatively, at
19 * <http://www.OpenLDAP.org/license.html>.
20 */
21 /* Portions Copyright (c) 1992-1996 Regents of the University of Michigan.
22 * All rights reserved.
23 *
24 * Redistribution and use in source and binary forms are permitted
25 * provided that this notice is preserved and that due credit is given
26 * to the University of Michigan at Ann Arbor. The name of the
27 * University may not be used to endorse or promote products derived
28 * from this software without specific prior written permission. This
29 * software is provided ``as is'' without express or implied warranty.
30 */
31 /* ACKNOWLEDGEMENTS:
32 * This work was originally developed by Kurt D. Zeilenga for inclusion
33 * in OpenLDAP Software based, in part, on other client tools.
34 */
35
36 #include <sys/cdefs.h>
37 __RCSID("$NetBSD: ldapwhoami.c,v 1.3 2021/08/14 16:14:49 christos Exp $");
38
39 #include "portable.h"
40
41 #include <stdio.h>
42
43 #include <ac/stdlib.h>
44
45 #include <ac/ctype.h>
46 #include <ac/socket.h>
47 #include <ac/string.h>
48 #include <ac/time.h>
49 #include <ac/unistd.h>
50
51 #include <ldap.h>
52 #include "lutil.h"
53 #include "lutil_ldap.h"
54 #include "ldap_defaults.h"
55
56 #include "common.h"
57
58
59 void
usage(void)60 usage( void )
61 {
62 fprintf( stderr, _("Issue LDAP Who am I? operation to request user's authzid\n\n"));
63 fprintf( stderr, _("usage: %s [options]\n"), prog);
64 tool_common_usage();
65 exit( EXIT_FAILURE );
66 }
67
68
69 const char options[] = ""
70 "d:D:e:h:H:InNO:o:p:QR:U:vVw:WxX:y:Y:Z";
71
72 int
handle_private_option(int i)73 handle_private_option( int i )
74 {
75 switch ( i ) {
76 #if 0
77 char *control, *cvalue;
78 int crit;
79 case 'E': /* whoami extension */
80 if( protocol == LDAP_VERSION2 ) {
81 fprintf( stderr, _("%s: -E incompatible with LDAPv%d\n"),
82 prog, protocol );
83 exit( EXIT_FAILURE );
84 }
85
86 /* should be extended to support comma separated list of
87 * [!]key[=value] parameters, e.g. -E !foo,bar=567
88 */
89
90 crit = 0;
91 cvalue = NULL;
92 if( optarg[0] == '!' ) {
93 crit = 1;
94 optarg++;
95 }
96
97 control = optarg;
98 if ( (cvalue = strchr( control, '=' )) != NULL ) {
99 *cvalue++ = '\0';
100 }
101
102 fprintf( stderr, _("Invalid whoami extension name: %s\n"), control );
103 usage();
104 #endif
105
106 default:
107 return 0;
108 }
109 return 1;
110 }
111
112
113 int
main(int argc,char * argv[])114 main( int argc, char *argv[] )
115 {
116 int rc;
117 LDAP *ld = NULL;
118 char *matcheddn = NULL, *text = NULL, **refs = NULL;
119 struct berval *authzid = NULL;
120 int id, code = 0;
121 LDAPMessage *res = NULL;
122 LDAPControl **ctrls = NULL;
123
124 tool_init( TOOL_WHOAMI );
125 prog = lutil_progname( "ldapwhoami", argc, argv );
126
127 /* LDAPv3 only */
128 protocol = LDAP_VERSION3;
129
130 tool_args( argc, argv );
131
132 if( argc - optind > 0 ) {
133 usage();
134 }
135
136 ld = tool_conn_setup( 0, 0 );
137
138 tool_bind( ld );
139
140 if ( dont ) {
141 rc = LDAP_SUCCESS;
142 goto skip;
143 }
144
145 tool_server_controls( ld, NULL, 0 );
146
147 rc = ldap_whoami( ld, NULL, NULL, &id );
148
149 if( rc != LDAP_SUCCESS ) {
150 tool_perror( "ldap_whoami", rc, NULL, NULL, NULL, NULL );
151 rc = EXIT_FAILURE;
152 goto skip;
153 }
154
155 for ( ; ; ) {
156 struct timeval tv;
157
158 if ( tool_check_abandon( ld, id ) ) {
159 tool_exit( ld, LDAP_CANCELLED );
160 }
161
162 tv.tv_sec = 0;
163 tv.tv_usec = 100000;
164
165 rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ALL, &tv, &res );
166 if ( rc < 0 ) {
167 tool_perror( "ldap_result", rc, NULL, NULL, NULL, NULL );
168 tool_exit( ld, rc );
169 }
170
171 if ( rc != 0 ) {
172 break;
173 }
174 }
175
176 rc = ldap_parse_result( ld, res,
177 &code, &matcheddn, &text, &refs, &ctrls, 0 );
178
179 if ( rc == LDAP_SUCCESS ) {
180 rc = code;
181 }
182
183 if ( rc != LDAP_SUCCESS ) {
184 tool_perror( "ldap_parse_result", rc, NULL, matcheddn, text, refs );
185 rc = EXIT_FAILURE;
186 goto skip;
187 }
188
189 rc = ldap_parse_whoami( ld, res, &authzid );
190
191 if( rc != LDAP_SUCCESS ) {
192 tool_perror( "ldap_parse_whoami", rc, NULL, NULL, NULL, NULL );
193 rc = EXIT_FAILURE;
194 goto skip;
195 }
196
197 if( authzid != NULL ) {
198 if( authzid->bv_len == 0 ) {
199 printf(_("anonymous\n") );
200 } else {
201 printf("%s\n", authzid->bv_val );
202 }
203 }
204
205 skip:
206 ldap_msgfree(res);
207 if ( verbose || code != LDAP_SUCCESS ||
208 ( matcheddn && *matcheddn ) || ( text && *text ) || refs || ctrls )
209 {
210 printf( _("Result: %s (%d)\n"), ldap_err2string( code ), code );
211
212 if( text && *text ) {
213 printf( _("Additional info: %s\n"), text );
214 }
215
216 if( matcheddn && *matcheddn ) {
217 printf( _("Matched DN: %s\n"), matcheddn );
218 }
219
220 if( refs ) {
221 int i;
222 for( i=0; refs[i]; i++ ) {
223 printf(_("Referral: %s\n"), refs[i] );
224 }
225 }
226
227 if (ctrls) {
228 tool_print_ctrls( ld, ctrls );
229 ldap_controls_free( ctrls );
230 }
231 }
232
233 ber_memfree( text );
234 ber_memfree( matcheddn );
235 ber_memvfree( (void **) refs );
236 ber_bvfree( authzid );
237
238 /* disconnect from server */
239 tool_exit( ld, code == LDAP_SUCCESS ? EXIT_SUCCESS : EXIT_FAILURE );
240 }
241