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/* passwd-shell.c - passwd(5) shell-based backend for slapd(8) */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2021 The OpenLDAP Foundation.
* 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) 1995 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.
*/
/* ACKNOWLEDGEMENTS:
* This work was originally developed by the University of Michigan
* (as part of U-MICH LDAP).
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/string.h>
#include <ac/unistd.h>
#include <pwd.h>
#include <lber.h>
#include <ldap.h>
#include "shellutil.h"
static void pwdfile_search LDAP_P(( struct ldop *op, FILE *ofp ));
static struct ldentry *pw2entry LDAP_P(( struct ldop *op, struct passwd *pw ));
static char tmpbuf[ MAXLINELEN * 2 ];
int
main( int argc, char **argv )
{
int c, errflg;
struct ldop op;
if (( progname = strrchr( argv[ 0 ], '/' )) == NULL ) {
progname = estrdup( argv[ 0 ] );
} else {
progname = estrdup( progname + 1 );
}
errflg = debugflg = 0;
while (( c = getopt( argc, argv, "d" )) != EOF ) {
switch( c ) {
case 'd':
#ifdef LDAP_DEBUG
++debugflg;
#else /* LDAP_DEBUG */
fprintf( stderr, "%s: compile with -DLDAP_DEBUG for debugging\n",
progname );
#endif /* LDAP_DEBUG */
break;
default:
++errflg;
}
}
if ( errflg || optind < argc ) {
fprintf( stderr, "usage: %s [-d]\n", progname );
exit( EXIT_FAILURE );
}
debug_printf( "started\n" );
(void) memset( (char *)&op, '\0', sizeof( op ));
if ( parse_input( stdin, stdout, &op ) < 0 ) {
exit( EXIT_SUCCESS );
}
if ( op.ldop_op != LDOP_SEARCH ) {
write_result( stdout, LDAP_UNWILLING_TO_PERFORM, NULL,
"Command Not Implemented" );
exit( EXIT_SUCCESS );
}
#ifdef LDAP_DEBUG
dump_ldop( &op );
#endif /* LDAP_DEBUG */
pwdfile_search( &op, stdout );
exit( EXIT_SUCCESS );
}
static void
pwdfile_search( struct ldop *op, FILE *ofp )
{
struct passwd *pw;
struct ldentry *entry;
int oneentry;
oneentry = ( strchr( op->ldop_dn, '@' ) != NULL );
for ( pw = getpwent(); pw != NULL; pw = getpwent()) {
if (( entry = pw2entry( op, pw )) != NULL ) {
if ( oneentry ) {
if ( strcasecmp( op->ldop_dn, entry->lde_dn ) == 0 ) {
write_entry( op, entry, ofp );
break;
}
} else if ( test_filter( op, entry ) == LDAP_COMPARE_TRUE ) {
write_entry( op, entry, ofp );
}
free_entry( entry );
}
}
endpwent();
write_result( ofp, LDAP_SUCCESS, NULL, NULL );
}
static struct ldentry *
pw2entry( struct ldop *op, struct passwd *pw )
{
struct ldentry *entry;
struct ldattr *attr;
int i;
/*
* construct the DN from pw_name
*/
if ( strchr( op->ldop_suffixes[ 0 ], '=' ) != NULL ) {
/*
* X.500 style DN
*/
i = snprintf( tmpbuf, sizeof( tmpbuf ), "cn=%s, %s", pw->pw_name, op->ldop_suffixes[ 0 ] );
} else {
/*
* RFC-822 style DN
*/
i = snprintf( tmpbuf, sizeof( tmpbuf ), "%s@%s", pw->pw_name, op->ldop_suffixes[ 0 ] );
}
if ( i < 0 || i >= sizeof( tmpbuf ) ) {
return NULL;
}
entry = (struct ldentry *) ecalloc( 1, sizeof( struct ldentry ));
entry->lde_dn = estrdup( tmpbuf );
/*
* for now, we simply derive the LDAP attribute values as follows:
* objectClass = person
* uid = pw_name
* sn = pw_name
* cn = pw_name
* cn = pw_gecos (second common name)
*/
entry->lde_attrs = (struct ldattr **)ecalloc( 5, sizeof( struct ldattr * ));
i = 0;
attr = (struct ldattr *)ecalloc( 1, sizeof( struct ldattr ));
attr->lda_name = estrdup( "objectClass" );
attr->lda_values = (char **)ecalloc( 2, sizeof( char * ));
attr->lda_values[ 0 ] = estrdup( "person" );
entry->lde_attrs[ i++ ] = attr;
attr = (struct ldattr *)ecalloc( 1, sizeof( struct ldattr ));
attr->lda_name = estrdup( "uid" );
attr->lda_values = (char **)ecalloc( 2, sizeof( char * ));
attr->lda_values[ 0 ] = estrdup( pw->pw_name );
entry->lde_attrs[ i++ ] = attr;
attr = (struct ldattr *)ecalloc( 1, sizeof( struct ldattr ));
attr->lda_name = estrdup( "sn" );
attr->lda_values = (char **)ecalloc( 2, sizeof( char * ));
attr->lda_values[ 0 ] = estrdup( pw->pw_name );
entry->lde_attrs[ i++ ] = attr;
attr = (struct ldattr *)ecalloc( 1, sizeof( struct ldattr ));
attr->lda_name = estrdup( "cn" );
attr->lda_values = (char **)ecalloc( 3, sizeof( char * ));
attr->lda_values[ 0 ] = estrdup( pw->pw_name );
if ( pw->pw_gecos != NULL && *pw->pw_gecos != '\0' ) {
attr->lda_values[ 1 ] = estrdup( pw->pw_gecos );
}
entry->lde_attrs[ i++ ] = attr;
return( entry );
}
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