openldap/clients/tools/ldappasswd.c
2003-11-25 23:17:08 +00:00

389 lines
8.7 KiB
C

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