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390 lines
8.7 KiB
C
390 lines
8.7 KiB
C
/* ldappasswd -- a tool for change LDAP passwords */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1998-2004 The OpenLDAP Foundation.
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* Portions Copyright 1998-2003 Kurt D. Zeilenga.
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* Portions Copyright 1998-2001 Net Boolean Incorporated.
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* Portions Copyright 2001-2003 IBM Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* Portions Copyright (c) 1992-1996 Regents of the University of Michigan.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of Michigan at Ann Arbor. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission. This
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* software is provided ``as is'' without express or implied warranty.
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*/
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/* ACKNOWLEDGEMENTS:
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* The original ldappasswd(1) tool was developed by Dave Storey (F5
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* Network), based on other OpenLDAP client tools (which are, of
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* course, based on U-MICH LDAP). This version was rewritten
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* by Kurt D. Zeilenga (based on other OpenLDAP client tools).
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/stdlib.h>
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#include <ac/ctype.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/time.h>
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#include <ac/unistd.h>
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#include <ldap.h>
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#include "lutil.h"
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#include "lutil_ldap.h"
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#include "ldap_defaults.h"
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#include "common.h"
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static struct berval newpw = { 0, NULL };
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static struct berval oldpw = { 0, NULL };
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static int want_newpw = 0;
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static int want_oldpw = 0;
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static char *oldpwfile = NULL;
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static char *newpwfile = NULL;
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void
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usage( void )
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{
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fprintf( stderr, _("Change password of an LDAP user\n\n"));
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fprintf( stderr,_("usage: %s [options] [user]\n"), prog);
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fprintf( stderr, _(" user: the autentication identity, commonly a DN\n"));
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fprintf( stderr, _("Password change options:\n"));
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fprintf( stderr, _(" -a secret old password\n"));
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fprintf( stderr, _(" -A prompt for old password\n"));
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fprintf( stderr, _(" -t file read file for old password\n"));
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fprintf( stderr, _(" -s secret new password\n"));
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fprintf( stderr, _(" -S prompt for new password\n"));
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fprintf( stderr, _(" -T file read file for new password\n"));
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tool_common_usage();
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exit( EXIT_FAILURE );
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}
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const char options[] = "a:As:St:T:"
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"d:D:e:h:H:InO:p:QR:U:vVw:WxX:y:Y:Z";
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int
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handle_private_option( int i )
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{
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switch ( i ) {
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#if 0
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case 'E': /* passwd controls */ {
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int crit;
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char *control, *cvalue;
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if( protocol == LDAP_VERSION2 ) {
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fprintf( stderr, _("%s: -E incompatible with LDAPv%d\n"),
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prog, protocol );
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exit( EXIT_FAILURE );
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}
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/* should be extended to support comma separated list of
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* [!]key[=value] parameters, e.g. -E !foo,bar=567
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*/
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crit = 0;
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cvalue = NULL;
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if( optarg[0] == '!' ) {
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crit = 1;
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optarg++;
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}
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control = strdup( optarg );
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if ( (cvalue = strchr( control, '=' )) != NULL ) {
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*cvalue++ = '\0';
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}
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fprintf( stderr, _("Invalid passwd control name: %s\n"), control );
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usage();
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}
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#endif
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case 'a': /* old password (secret) */
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oldpw.bv_val = strdup( optarg );
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{
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char* p;
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for( p = optarg; *p != '\0'; p++ ) {
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*p = '\0';
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}
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}
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oldpw.bv_len = strlen( oldpw.bv_val );
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break;
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case 'A': /* prompt for old password */
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want_oldpw++;
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break;
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case 's': /* new password (secret) */
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newpw.bv_val = strdup (optarg);
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{
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char* p;
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for( p = optarg; *p != '\0'; p++ ) {
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*p = '\0';
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}
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}
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newpw.bv_len = strlen( newpw.bv_val );
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break;
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case 'S': /* prompt for user password */
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want_newpw++;
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break;
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case 't':
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oldpwfile = optarg;
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break;
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case 'T':
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newpwfile = optarg;
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break;
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default:
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return 0;
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}
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return 1;
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}
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int
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main( int argc, char *argv[] )
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{
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int rc;
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char *user = NULL;
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LDAP *ld = NULL;
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struct berval bv = {0, NULL};
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BerElement *ber = NULL;
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int id, code = LDAP_OTHER;
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LDAPMessage *res;
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char *matcheddn = NULL, *text = NULL, **refs = NULL;
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char *retoid = NULL;
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struct berval *retdata = NULL;
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tool_init();
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prog = lutil_progname( "ldappasswd", argc, argv );
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/* LDAPv3 only */
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protocol = LDAP_VERSION3;
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tool_args( argc, argv );
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if( argc - optind > 1 ) {
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usage();
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} else if ( argc - optind == 1 ) {
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user = strdup( argv[optind] );
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} else {
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user = NULL;
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}
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if( oldpwfile ) {
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rc = lutil_get_filed_password( oldpwfile, &oldpw );
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if( rc ) return EXIT_FAILURE;
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}
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if( want_oldpw && oldpw.bv_val == NULL ) {
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/* prompt for old password */
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char *ckoldpw;
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oldpw.bv_val = strdup(getpassphrase(_("Old password: ")));
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ckoldpw = getpassphrase(_("Re-enter old password: "));
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if( oldpw.bv_val == NULL || ckoldpw == NULL ||
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strcmp( oldpw.bv_val, ckoldpw ))
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{
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fprintf( stderr, _("passwords do not match\n") );
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return EXIT_FAILURE;
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}
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oldpw.bv_len = strlen( oldpw.bv_val );
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}
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if( newpwfile ) {
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rc = lutil_get_filed_password( newpwfile, &newpw );
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if( rc ) return EXIT_FAILURE;
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}
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if( want_newpw && newpw.bv_val == NULL ) {
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/* prompt for new password */
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char *cknewpw;
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newpw.bv_val = strdup(getpassphrase(_("New password: ")));
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cknewpw = getpassphrase(_("Re-enter new password: "));
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if( newpw.bv_val == NULL || cknewpw == NULL ||
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strcmp( newpw.bv_val, cknewpw ))
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{
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fprintf( stderr, _("passwords do not match\n") );
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return EXIT_FAILURE;
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}
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newpw.bv_len = strlen( newpw.bv_val );
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}
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if ( pw_file ) {
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rc = lutil_get_filed_password( pw_file, &passwd );
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if( rc ) return EXIT_FAILURE;
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} else if ( want_bindpw ) {
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passwd.bv_val = getpassphrase( _("Enter LDAP Password: ") );
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passwd.bv_len = passwd.bv_val ? strlen( passwd.bv_val ) : 0;
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}
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ld = tool_conn_setup( 0, 0 );
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tool_bind( ld );
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if ( assertion || authzid || manageDSAit || noop ) {
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tool_server_controls( ld, NULL, 0 );
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}
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if( user != NULL || oldpw.bv_val != NULL || newpw.bv_val != NULL ) {
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/* build change password control */
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ber = ber_alloc_t( LBER_USE_DER );
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if( ber == NULL ) {
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perror( "ber_alloc_t" );
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ldap_unbind_ext( ld, NULL, NULL );
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return EXIT_FAILURE;
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}
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ber_printf( ber, "{" /*}*/ );
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if( user != NULL ) {
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ber_printf( ber, "ts",
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LDAP_TAG_EXOP_MODIFY_PASSWD_ID, user );
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free(user);
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}
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if( oldpw.bv_val != NULL ) {
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ber_printf( ber, "tO",
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LDAP_TAG_EXOP_MODIFY_PASSWD_OLD, &oldpw );
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free(oldpw.bv_val);
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}
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if( newpw.bv_val != NULL ) {
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ber_printf( ber, "tO",
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LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, &newpw );
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free(newpw.bv_val);
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}
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ber_printf( ber, /*{*/ "N}" );
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rc = ber_flatten2( ber, &bv, 0 );
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if( rc < 0 ) {
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perror( "ber_flatten2" );
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ldap_unbind_ext( ld, NULL, NULL );
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return EXIT_FAILURE;
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}
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}
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if ( not ) {
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rc = LDAP_SUCCESS;
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goto skip;
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}
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rc = ldap_extended_operation( ld,
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LDAP_EXOP_MODIFY_PASSWD, bv.bv_val ? &bv : NULL,
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NULL, NULL, &id );
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ber_free( ber, 1 );
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if( rc != LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_extended_operation" );
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ldap_unbind_ext( ld, NULL, NULL );
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return EXIT_FAILURE;
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}
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rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ALL, NULL, &res );
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if ( rc < 0 ) {
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ldap_perror( ld, "ldappasswd: ldap_result" );
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return rc;
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}
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rc = ldap_parse_result( ld, res,
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&code, &matcheddn, &text, &refs, NULL, 0 );
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if( rc != LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_parse_result" );
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return rc;
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}
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rc = ldap_parse_extended_result( ld, res, &retoid, &retdata, 1 );
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if( rc != LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_parse_result" );
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return rc;
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}
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if( retdata != NULL ) {
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ber_tag_t tag;
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char *s;
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ber = ber_init( retdata );
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if( ber == NULL ) {
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perror( "ber_init" );
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ldap_unbind_ext( ld, NULL, NULL );
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return EXIT_FAILURE;
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}
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/* we should check the tag */
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tag = ber_scanf( ber, "{a}", &s);
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if( tag == LBER_ERROR ) {
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perror( "ber_scanf" );
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} else {
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printf(_("New password: %s\n"), s);
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free( s );
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}
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ber_free( ber, 1 );
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}
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if( verbose || code != LDAP_SUCCESS || matcheddn || text || refs ) {
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printf( _("Result: %s (%d)\n"), ldap_err2string( code ), code );
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if( text && *text ) {
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printf( _("Additional info: %s\n"), text );
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}
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if( matcheddn && *matcheddn ) {
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printf( _("Matched DN: %s\n"), matcheddn );
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}
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if( refs ) {
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int i;
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for( i=0; refs[i]; i++ ) {
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printf(_("Referral: %s\n"), refs[i] );
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}
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}
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}
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ber_memfree( text );
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ber_memfree( matcheddn );
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ber_memvfree( (void **) refs );
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ber_memfree( retoid );
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ber_bvfree( retdata );
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skip:
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/* disconnect from server */
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ldap_unbind_ext( ld, NULL, NULL );
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return code == LDAP_SUCCESS ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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