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openldap/libraries/libldap/srchpref.c

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/*
* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/* Portions
* Copyright (c) 1993, 1994 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.
*
* searchpref.c: search preferences library routines for LDAP clients
* 17 May 1994 by Gordon Good
*/
#include "portable.h"
#include <stdio.h>
#include <stdlib.h>
#include <ac/ctype.h>
#include <ac/string.h>
#include <ac/time.h>
#include <ac/unistd.h>
#ifdef HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#include "ldap-int.h"
#include "srchpref.h"
#include "ldap-int.h"
static void free_searchobj LDAP_P(( struct ldap_searchobj *so ));
static int read_next_searchobj LDAP_P(( char **bufp, long *blenp,
struct ldap_searchobj **sop, int soversion ));
static const char *const sobjoptions[] = {
"internal",
NULL
};
static const unsigned long sobjoptvals[] = {
LDAP_SEARCHOBJ_OPT_INTERNAL,
};
int
ldap_init_searchprefs( char *file, struct ldap_searchobj **solistp )
{
FILE *fp;
char *buf;
long rlen, len;
int rc, eof;
if (( fp = fopen( file, "r" )) == NULL ) {
return( LDAP_SEARCHPREF_ERR_FILE );
}
if ( fseek( fp, 0L, SEEK_END ) != 0 ) { /* move to end to get len */
fclose( fp );
return( LDAP_SEARCHPREF_ERR_FILE );
}
len = ftell( fp );
if ( fseek( fp, 0L, SEEK_SET ) != 0 ) { /* back to start of file */
fclose( fp );
return( LDAP_SEARCHPREF_ERR_FILE );
}
if (( buf = malloc( (size_t)len )) == NULL ) {
fclose( fp );
return( LDAP_SEARCHPREF_ERR_MEM );
}
rlen = fread( buf, 1, (size_t)len, fp );
eof = feof( fp );
fclose( fp );
if ( rlen != len && !eof ) { /* error: didn't get the whole file */
free( buf );
return( LDAP_SEARCHPREF_ERR_FILE );
}
rc = ldap_init_searchprefs_buf( buf, rlen, solistp );
free( buf );
return( rc );
}
int
ldap_init_searchprefs_buf( char *buf, long buflen,
struct ldap_searchobj **solistp )
{
int rc = -1, version;
char **toks;
struct ldap_searchobj *prevso, *so;
*solistp = prevso = NULLSEARCHOBJ;
if ( next_line_tokens( &buf, &buflen, &toks ) != 2 ||
strcasecmp( toks[ 0 ], "version" ) != 0 ) {
free_strarray( toks );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
version = atoi( toks[ 1 ] );
free_strarray( toks );
if ( version != LDAP_SEARCHPREF_VERSION &&
version != LDAP_SEARCHPREF_VERSION_ZERO ) {
return( LDAP_SEARCHPREF_ERR_VERSION );
}
while ( buflen > 0 && ( rc = read_next_searchobj( &buf, &buflen, &so,
version )) == 0 && so != NULLSEARCHOBJ ) {
if ( prevso == NULLSEARCHOBJ ) {
*solistp = so;
} else {
prevso->so_next = so;
}
prevso = so;
}
if ( rc != 0 ) {
ldap_free_searchprefs( *solistp );
}
return( rc );
}
void
ldap_free_searchprefs( struct ldap_searchobj *solist )
{
struct ldap_searchobj *so, *nextso;
if ( solist != NULL ) {
for ( so = solist; so != NULL; so = nextso ) {
nextso = so->so_next;
free_searchobj( so );
}
}
/* XXX XXX need to do some work here */
}
static void
free_searchobj( struct ldap_searchobj *so )
{
if ( so != NULL ) {
if ( so->so_objtypeprompt != NULL ) {
free( so->so_objtypeprompt );
}
if ( so->so_prompt != NULL ) {
free( so->so_prompt );
}
if ( so->so_filterprefix != NULL ) {
free( so->so_filterprefix );
}
if ( so->so_filtertag != NULL ) {
free( so->so_filtertag );
}
if ( so->so_defaultselectattr != NULL ) {
free( so->so_defaultselectattr );
}
if ( so->so_defaultselecttext != NULL ) {
free( so->so_defaultselecttext );
}
if ( so->so_salist != NULL ) {
struct ldap_searchattr *sa, *nextsa;
for ( sa = so->so_salist; sa != NULL; sa = nextsa ) {
nextsa = sa->sa_next;
if ( sa->sa_attrlabel != NULL ) {
free( sa->sa_attrlabel );
}
if ( sa->sa_attr != NULL ) {
free( sa->sa_attr );
}
if ( sa->sa_selectattr != NULL ) {
free( sa->sa_selectattr );
}
if ( sa->sa_selecttext != NULL ) {
free( sa->sa_selecttext );
}
free( sa );
}
}
if ( so->so_smlist != NULL ) {
struct ldap_searchmatch *sm, *nextsm;
for ( sm = so->so_smlist; sm != NULL; sm = nextsm ) {
nextsm = sm->sm_next;
if ( sm->sm_matchprompt != NULL ) {
free( sm->sm_matchprompt );
}
if ( sm->sm_filter != NULL ) {
free( sm->sm_filter );
}
free( sm );
}
}
free( so );
}
}
struct ldap_searchobj *
ldap_first_searchobj( struct ldap_searchobj *solist )
{
return( solist );
}
struct ldap_searchobj *
ldap_next_searchobj( struct ldap_searchobj *solist, struct ldap_searchobj *so )
{
return( so == NULLSEARCHOBJ ? so : so->so_next );
}
static int
read_next_searchobj( char **bufp, long *blenp, struct ldap_searchobj **sop,
int soversion )
{
int i, j, tokcnt;
char **toks;
struct ldap_searchobj *so;
struct ldap_searchattr **sa;
struct ldap_searchmatch **sm;
*sop = NULL;
/*
* Object type prompt comes first
*/
if (( tokcnt = next_line_tokens( bufp, blenp, &toks )) != 1 ) {
free_strarray( toks );
return( tokcnt == 0 ? 0 : LDAP_SEARCHPREF_ERR_SYNTAX );
}
if (( so = (struct ldap_searchobj *)calloc( 1,
sizeof( struct ldap_searchobj ))) == NULL ) {
free_strarray( toks );
return( LDAP_SEARCHPREF_ERR_MEM );
}
so->so_objtypeprompt = toks[ 0 ];
free( (char *)toks );
/*
* if this is post-version zero, options come next
*/
if ( soversion > LDAP_SEARCHPREF_VERSION_ZERO ) {
if (( tokcnt = next_line_tokens( bufp, blenp, &toks )) < 1 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
for ( i = 0; toks[ i ] != NULL; ++i ) {
for ( j = 0; sobjoptions[ j ] != NULL; ++j ) {
if ( strcasecmp( toks[ i ], sobjoptions[ j ] ) == 0 ) {
so->so_options |= sobjoptvals[ j ];
}
}
}
free_strarray( toks );
}
/*
* "Fewer choices" prompt is next
*/
if (( tokcnt = next_line_tokens( bufp, blenp, &toks )) != 1 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
so->so_prompt = toks[ 0 ];
free( (char *)toks );
/*
* Filter prefix for "More Choices" searching is next
*/
if (( tokcnt = next_line_tokens( bufp, blenp, &toks )) != 1 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
so->so_filterprefix = toks[ 0 ];
free( (char *)toks );
/*
* "Fewer Choices" filter tag comes next
*/
if (( tokcnt = next_line_tokens( bufp, blenp, &toks )) != 1 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
so->so_filtertag = toks[ 0 ];
free( (char *)toks );
/*
* Selection (disambiguation) attribute comes next
*/
if (( tokcnt = next_line_tokens( bufp, blenp, &toks )) != 1 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
so->so_defaultselectattr = toks[ 0 ];
free( (char *)toks );
/*
* Label for selection (disambiguation) attribute
*/
if (( tokcnt = next_line_tokens( bufp, blenp, &toks )) != 1 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
so->so_defaultselecttext = toks[ 0 ];
free( (char *)toks );
/*
* Search scope is next
*/
if (( tokcnt = next_line_tokens( bufp, blenp, &toks )) != 1 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
if ( !strcasecmp(toks[ 0 ], "subtree" )) {
so->so_defaultscope = LDAP_SCOPE_SUBTREE;
} else if ( !strcasecmp(toks[ 0 ], "onelevel" )) {
so->so_defaultscope = LDAP_SCOPE_ONELEVEL;
} else if ( !strcasecmp(toks[ 0 ], "base" )) {
so->so_defaultscope = LDAP_SCOPE_BASE;
} else {
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
free_strarray( toks );
/*
* "More Choices" search option list comes next
*/
sa = &( so->so_salist );
while (( tokcnt = next_line_tokens( bufp, blenp, &toks )) > 0 ) {
if ( tokcnt < 5 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
if (( *sa = ( struct ldap_searchattr * ) calloc( 1,
sizeof( struct ldap_searchattr ))) == NULL ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_MEM );
}
( *sa )->sa_attrlabel = toks[ 0 ];
( *sa )->sa_attr = toks[ 1 ];
( *sa )->sa_selectattr = toks[ 3 ];
( *sa )->sa_selecttext = toks[ 4 ];
/* Deal with bitmap */
( *sa )->sa_matchtypebitmap = 0;
for ( i = strlen( toks[ 2 ] ) - 1, j = 0; i >= 0; i--, j++ ) {
if ( toks[ 2 ][ i ] == '1' ) {
( *sa )->sa_matchtypebitmap |= (1 << j);
}
}
free( toks[ 2 ] );
free( ( char * ) toks );
sa = &(( *sa )->sa_next);
}
*sa = NULL;
/*
* Match types are last
*/
sm = &( so->so_smlist );
while (( tokcnt = next_line_tokens( bufp, blenp, &toks )) > 0 ) {
if ( tokcnt < 2 ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_SYNTAX );
}
if (( *sm = ( struct ldap_searchmatch * ) calloc( 1,
sizeof( struct ldap_searchmatch ))) == NULL ) {
free_strarray( toks );
ldap_free_searchprefs( so );
return( LDAP_SEARCHPREF_ERR_MEM );
}
( *sm )->sm_matchprompt = toks[ 0 ];
( *sm )->sm_filter = toks[ 1 ];
free( ( char * ) toks );
sm = &(( *sm )->sm_next );
}
*sm = NULL;
*sop = so;
return( 0 );
}
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