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openldap/libraries/libldap/schema.c
Ondřej Kuzník 4bb239bd76 ITS#9160 OOM handling in libldap
2020-02-07 09:46:52 +00:00

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/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2020 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>.
*/
/*
* schema.c: parsing routines used by servers and clients to process
* schema definitions
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/string.h>
#include <ac/time.h>
#include "ldap-int.h"
#include <ldap_schema.h>
static const char EndOfInput[] = "end of input";
static const char *
choose_name( char *names[], const char *fallback )
{
return (names != NULL && names[0] != NULL) ? names[0] : fallback;
}
LDAP_CONST char *
ldap_syntax2name( LDAPSyntax * syn )
{
if (!syn) return NULL;
return( syn->syn_oid );
}
LDAP_CONST char *
ldap_matchingrule2name( LDAPMatchingRule * mr )
{
if (!mr) return NULL;
return( choose_name( mr->mr_names, mr->mr_oid ) );
}
LDAP_CONST char *
ldap_matchingruleuse2name( LDAPMatchingRuleUse * mru )
{
if (!mru) return NULL;
return( choose_name( mru->mru_names, mru->mru_oid ) );
}
LDAP_CONST char *
ldap_attributetype2name( LDAPAttributeType * at )
{
if (!at) return NULL;
return( choose_name( at->at_names, at->at_oid ) );
}
LDAP_CONST char *
ldap_objectclass2name( LDAPObjectClass * oc )
{
if (!oc) return NULL;
return( choose_name( oc->oc_names, oc->oc_oid ) );
}
LDAP_CONST char *
ldap_contentrule2name( LDAPContentRule * cr )
{
if (!cr) return NULL;
return( choose_name( cr->cr_names, cr->cr_oid ) );
}
LDAP_CONST char *
ldap_nameform2name( LDAPNameForm * nf )
{
if (!nf) return NULL;
return( choose_name( nf->nf_names, nf->nf_oid ) );
}
LDAP_CONST char *
ldap_structurerule2name( LDAPStructureRule * sr )
{
if (!sr) return NULL;
return( choose_name( sr->sr_names, NULL ) );
}
/*
* When pretty printing the entities we will be appending to a buffer.
* Since checking for overflow, realloc'ing and checking if no error
* is extremely boring, we will use a protection layer that will let
* us blissfully ignore the error until the end. This layer is
* implemented with the help of the next type.
*/
typedef struct safe_string {
char * val;
ber_len_t size;
ber_len_t pos;
int at_whsp;
} safe_string;
static safe_string *
new_safe_string(int size)
{
safe_string * ss;
ss = LDAP_MALLOC(sizeof(safe_string));
if ( !ss )
return(NULL);
ss->val = LDAP_MALLOC(size);
if ( !ss->val ) {
LDAP_FREE(ss);
return(NULL);
}
ss->size = size;
ss->pos = 0;
ss->at_whsp = 0;
return ss;
}
static void
safe_string_free(safe_string * ss)
{
if ( !ss )
return;
LDAP_FREE(ss->val);
LDAP_FREE(ss);
}
#if 0 /* unused */
static char *
safe_string_val(safe_string * ss)
{
ss->val[ss->pos] = '\0';
return(ss->val);
}
#endif
static char *
safe_strdup(safe_string * ss)
{
char *ret = LDAP_MALLOC(ss->pos+1);
if (!ret)
return NULL;
AC_MEMCPY(ret, ss->val, ss->pos);
ret[ss->pos] = '\0';
return ret;
}
static int
append_to_safe_string(safe_string * ss, char * s)
{
int l = strlen(s);
char * temp;
/*
* Some runaway process is trying to append to a string that
* overflowed and we could not extend.
*/
if ( !ss->val )
return -1;
/* We always make sure there is at least one position available */
if ( ss->pos + l >= ss->size-1 ) {
ss->size *= 2;
if ( ss->pos + l >= ss->size-1 ) {
ss->size = ss->pos + l + 1;
}
temp = LDAP_REALLOC(ss->val, ss->size);
if ( !temp ) {
/* Trouble, out of memory */
LDAP_FREE(ss->val);
return -1;
}
ss->val = temp;
}
strncpy(&ss->val[ss->pos], s, l);
ss->pos += l;
if ( ss->pos > 0 && LDAP_SPACE(ss->val[ss->pos-1]) )
ss->at_whsp = 1;
else
ss->at_whsp = 0;
return 0;
}
static int
print_literal(safe_string *ss, char *s)
{
return(append_to_safe_string(ss,s));
}
static int
print_whsp(safe_string *ss)
{
if ( ss->at_whsp )
return(append_to_safe_string(ss,""));
else
return(append_to_safe_string(ss," "));
}
static int
print_numericoid(safe_string *ss, char *s)
{
if ( s )
return(append_to_safe_string(ss,s));
else
return(append_to_safe_string(ss,""));
}
/* This one is identical to print_qdescr */
static int
print_qdstring(safe_string *ss, char *s)
{
print_whsp(ss);
print_literal(ss,"'");
append_to_safe_string(ss,s);
print_literal(ss,"'");
return(print_whsp(ss));
}
static int
print_qdescr(safe_string *ss, char *s)
{
print_whsp(ss);
print_literal(ss,"'");
append_to_safe_string(ss,s);
print_literal(ss,"'");
return(print_whsp(ss));
}
static int
print_qdescrlist(safe_string *ss, char **sa)
{
char **sp;
int ret = 0;
for (sp=sa; *sp; sp++) {
ret = print_qdescr(ss,*sp);
}
/* If the list was empty, we return zero that is potentially
* incorrect, but since we will be still appending things, the
* overflow will be detected later. Maybe FIX.
*/
return(ret);
}
static int
print_qdescrs(safe_string *ss, char **sa)
{
/* The only way to represent an empty list is as a qdescrlist
* so, if the list is empty we treat it as a long list.
* Really, this is what the syntax mandates. We should not
* be here if the list was empty, but if it happens, a label
* has already been output and we cannot undo it.
*/
if ( !sa[0] || ( sa[0] && sa[1] ) ) {
print_whsp(ss);
print_literal(ss,"("/*)*/);
print_qdescrlist(ss,sa);
print_literal(ss,/*(*/")");
return(print_whsp(ss));
} else {
return(print_qdescr(ss,*sa));
}
}
static int
print_woid(safe_string *ss, char *s)
{
print_whsp(ss);
append_to_safe_string(ss,s);
return print_whsp(ss);
}
static int
print_oidlist(safe_string *ss, char **sa)
{
char **sp;
for (sp=sa; *(sp+1); sp++) {
print_woid(ss,*sp);
print_literal(ss,"$");
}
return(print_woid(ss,*sp));
}
static int
print_oids(safe_string *ss, char **sa)
{
if ( sa[0] && sa[1] ) {
print_literal(ss,"("/*)*/);
print_oidlist(ss,sa);
print_whsp(ss);
return(print_literal(ss,/*(*/")"));
} else {
return(print_woid(ss,*sa));
}
}
static int
print_noidlen(safe_string *ss, char *s, int l)
{
char buf[64];
int ret;
ret = print_numericoid(ss,s);
if ( l ) {
snprintf(buf, sizeof buf, "{%d}",l);
ret = print_literal(ss,buf);
}
return(ret);
}
static int
print_ruleid(safe_string *ss, int rid)
{
char buf[64];
snprintf(buf, sizeof buf, "%d", rid);
return print_literal(ss,buf);
}
static int
print_ruleids(safe_string *ss, int n, int *rids)
{
int i;
if( n == 1 ) {
print_ruleid(ss,rids[0]);
return print_whsp(ss);
} else {
print_literal(ss,"("/*)*/);
for( i=0; i<n; i++ ) {
print_whsp(ss);
print_ruleid(ss,rids[i]);
}
print_whsp(ss);
return print_literal(ss,/*(*/")");
}
}
static int
print_extensions(safe_string *ss, LDAPSchemaExtensionItem **extensions)
{
LDAPSchemaExtensionItem **ext;
if ( extensions ) {
print_whsp(ss);
for ( ext = extensions; *ext != NULL; ext++ ) {
print_literal(ss, (*ext)->lsei_name);
print_whsp(ss);
/* Should be print_qdstrings */
print_qdescrs(ss, (*ext)->lsei_values);
print_whsp(ss);
}
}
return 0;
}
char *
ldap_syntax2str( LDAPSyntax * syn )
{
struct berval bv;
if (ldap_syntax2bv( syn, &bv ))
return(bv.bv_val);
else
return NULL;
}
struct berval *
ldap_syntax2bv( LDAPSyntax * syn, struct berval *bv )
{
safe_string * ss;
if ( !syn || !bv )
return NULL;
ss = new_safe_string(256);
if ( !ss )
return NULL;
print_literal(ss,"("/*)*/);
print_whsp(ss);
print_numericoid(ss, syn->syn_oid);
print_whsp(ss);
if ( syn->syn_desc ) {
print_literal(ss,"DESC");
print_qdstring(ss,syn->syn_desc);
}
print_whsp(ss);
print_extensions(ss, syn->syn_extensions);
print_literal(ss,/*(*/ ")");
bv->bv_val = safe_strdup(ss);
bv->bv_len = ss->pos;
safe_string_free(ss);
return(bv);
}
char *
ldap_matchingrule2str( LDAPMatchingRule * mr )
{
struct berval bv;
if (ldap_matchingrule2bv( mr, &bv ))
return(bv.bv_val);
else
return NULL;
}
struct berval *
ldap_matchingrule2bv( LDAPMatchingRule * mr, struct berval *bv )
{
safe_string * ss;
if ( !mr || !bv )
return NULL;
ss = new_safe_string(256);
if ( !ss )
return NULL;
print_literal(ss,"(" /*)*/);
print_whsp(ss);
print_numericoid(ss, mr->mr_oid);
print_whsp(ss);
if ( mr->mr_names ) {
print_literal(ss,"NAME");
print_qdescrs(ss,mr->mr_names);
}
if ( mr->mr_desc ) {
print_literal(ss,"DESC");
print_qdstring(ss,mr->mr_desc);
}
if ( mr->mr_obsolete ) {
print_literal(ss, "OBSOLETE");
print_whsp(ss);
}
if ( mr->mr_syntax_oid ) {
print_literal(ss,"SYNTAX");
print_whsp(ss);
print_literal(ss, mr->mr_syntax_oid);
print_whsp(ss);
}
print_whsp(ss);
print_extensions(ss, mr->mr_extensions);
print_literal(ss,/*(*/")");
bv->bv_val = safe_strdup(ss);
bv->bv_len = ss->pos;
safe_string_free(ss);
return(bv);
}
char *
ldap_matchingruleuse2str( LDAPMatchingRuleUse * mru )
{
struct berval bv;
if (ldap_matchingruleuse2bv( mru, &bv ))
return(bv.bv_val);
else
return NULL;
}
struct berval *
ldap_matchingruleuse2bv( LDAPMatchingRuleUse * mru, struct berval *bv )
{
safe_string * ss;
if ( !mru || !bv )
return NULL;
ss = new_safe_string(256);
if ( !ss )
return NULL;
print_literal(ss,"(" /*)*/);
print_whsp(ss);
print_numericoid(ss, mru->mru_oid);
print_whsp(ss);
if ( mru->mru_names ) {
print_literal(ss,"NAME");
print_qdescrs(ss,mru->mru_names);
}
if ( mru->mru_desc ) {
print_literal(ss,"DESC");
print_qdstring(ss,mru->mru_desc);
}
if ( mru->mru_obsolete ) {
print_literal(ss, "OBSOLETE");
print_whsp(ss);
}
if ( mru->mru_applies_oids ) {
print_literal(ss,"APPLIES");
print_whsp(ss);
print_oids(ss, mru->mru_applies_oids);
print_whsp(ss);
}
print_whsp(ss);
print_extensions(ss, mru->mru_extensions);
print_literal(ss,/*(*/")");
bv->bv_val = safe_strdup(ss);
bv->bv_len = ss->pos;
safe_string_free(ss);
return(bv);
}
char *
ldap_objectclass2str( LDAPObjectClass * oc )
{
struct berval bv;
if (ldap_objectclass2bv( oc, &bv ))
return(bv.bv_val);
else
return NULL;
}
struct berval *
ldap_objectclass2bv( LDAPObjectClass * oc, struct berval *bv )
{
safe_string * ss;
if ( !oc || !bv )
return NULL;
ss = new_safe_string(256);
if ( !ss )
return NULL;
print_literal(ss,"("/*)*/);
print_whsp(ss);
print_numericoid(ss, oc->oc_oid);
print_whsp(ss);
if ( oc->oc_names ) {
print_literal(ss,"NAME");
print_qdescrs(ss,oc->oc_names);
}
if ( oc->oc_desc ) {
print_literal(ss,"DESC");
print_qdstring(ss,oc->oc_desc);
}
if ( oc->oc_obsolete ) {
print_literal(ss, "OBSOLETE");
print_whsp(ss);
}
if ( oc->oc_sup_oids ) {
print_literal(ss,"SUP");
print_whsp(ss);
print_oids(ss,oc->oc_sup_oids);
print_whsp(ss);
}
switch (oc->oc_kind) {
case LDAP_SCHEMA_ABSTRACT:
print_literal(ss,"ABSTRACT");
break;
case LDAP_SCHEMA_STRUCTURAL:
print_literal(ss,"STRUCTURAL");
break;
case LDAP_SCHEMA_AUXILIARY:
print_literal(ss,"AUXILIARY");
break;
default:
print_literal(ss,"KIND-UNKNOWN");
break;
}
print_whsp(ss);
if ( oc->oc_at_oids_must ) {
print_literal(ss,"MUST");
print_whsp(ss);
print_oids(ss,oc->oc_at_oids_must);
print_whsp(ss);
}
if ( oc->oc_at_oids_may ) {
print_literal(ss,"MAY");
print_whsp(ss);
print_oids(ss,oc->oc_at_oids_may);
print_whsp(ss);
}
print_whsp(ss);
print_extensions(ss, oc->oc_extensions);
print_literal(ss, /*(*/")");
bv->bv_val = safe_strdup(ss);
bv->bv_len = ss->pos;
safe_string_free(ss);
return(bv);
}
char *
ldap_contentrule2str( LDAPContentRule * cr )
{
struct berval bv;
if (ldap_contentrule2bv( cr, &bv ))
return(bv.bv_val);
else
return NULL;
}
struct berval *
ldap_contentrule2bv( LDAPContentRule * cr, struct berval *bv )
{
safe_string * ss;
if ( !cr || !bv )
return NULL;
ss = new_safe_string(256);
if ( !ss )
return NULL;
print_literal(ss,"("/*)*/);
print_whsp(ss);
print_numericoid(ss, cr->cr_oid);
print_whsp(ss);
if ( cr->cr_names ) {
print_literal(ss,"NAME");
print_qdescrs(ss,cr->cr_names);
}
if ( cr->cr_desc ) {
print_literal(ss,"DESC");
print_qdstring(ss,cr->cr_desc);
}
if ( cr->cr_obsolete ) {
print_literal(ss, "OBSOLETE");
print_whsp(ss);
}
if ( cr->cr_oc_oids_aux ) {
print_literal(ss,"AUX");
print_whsp(ss);
print_oids(ss,cr->cr_oc_oids_aux);
print_whsp(ss);
}
if ( cr->cr_at_oids_must ) {
print_literal(ss,"MUST");
print_whsp(ss);
print_oids(ss,cr->cr_at_oids_must);
print_whsp(ss);
}
if ( cr->cr_at_oids_may ) {
print_literal(ss,"MAY");
print_whsp(ss);
print_oids(ss,cr->cr_at_oids_may);
print_whsp(ss);
}
if ( cr->cr_at_oids_not ) {
print_literal(ss,"NOT");
print_whsp(ss);
print_oids(ss,cr->cr_at_oids_not);
print_whsp(ss);
}
print_whsp(ss);
print_extensions(ss, cr->cr_extensions);
print_literal(ss, /*(*/")");
bv->bv_val = safe_strdup(ss);
bv->bv_len = ss->pos;
safe_string_free(ss);
return(bv);
}
char *
ldap_structurerule2str( LDAPStructureRule * sr )
{
struct berval bv;
if (ldap_structurerule2bv( sr, &bv ))
return(bv.bv_val);
else
return NULL;
}
struct berval *
ldap_structurerule2bv( LDAPStructureRule * sr, struct berval *bv )
{
safe_string * ss;
if ( !sr || !bv )
return NULL;
ss = new_safe_string(256);
if ( !ss )
return NULL;
print_literal(ss,"("/*)*/);
print_whsp(ss);
print_ruleid(ss, sr->sr_ruleid);
print_whsp(ss);
if ( sr->sr_names ) {
print_literal(ss,"NAME");
print_qdescrs(ss,sr->sr_names);
}
if ( sr->sr_desc ) {
print_literal(ss,"DESC");
print_qdstring(ss,sr->sr_desc);
}
if ( sr->sr_obsolete ) {
print_literal(ss, "OBSOLETE");
print_whsp(ss);
}
print_literal(ss,"FORM");
print_whsp(ss);
print_woid(ss,sr->sr_nameform);
print_whsp(ss);
if ( sr->sr_nsup_ruleids ) {
print_literal(ss,"SUP");
print_whsp(ss);
print_ruleids(ss,sr->sr_nsup_ruleids,sr->sr_sup_ruleids);
print_whsp(ss);
}
print_whsp(ss);
print_extensions(ss, sr->sr_extensions);
print_literal(ss, /*(*/")");
bv->bv_val = safe_strdup(ss);
bv->bv_len = ss->pos;
safe_string_free(ss);
return(bv);
}
char *
ldap_nameform2str( LDAPNameForm * nf )
{
struct berval bv;
if (ldap_nameform2bv( nf, &bv ))
return(bv.bv_val);
else
return NULL;
}
struct berval *
ldap_nameform2bv( LDAPNameForm * nf, struct berval *bv )
{
safe_string * ss;
if ( !nf || !bv )
return NULL;
ss = new_safe_string(256);
if ( !ss )
return NULL;
print_literal(ss,"("/*)*/);
print_whsp(ss);
print_numericoid(ss, nf->nf_oid);
print_whsp(ss);
if ( nf->nf_names ) {
print_literal(ss,"NAME");
print_qdescrs(ss,nf->nf_names);
}
if ( nf->nf_desc ) {
print_literal(ss,"DESC");
print_qdstring(ss,nf->nf_desc);
}
if ( nf->nf_obsolete ) {
print_literal(ss, "OBSOLETE");
print_whsp(ss);
}
print_literal(ss,"OC");
print_whsp(ss);
print_woid(ss,nf->nf_objectclass);
print_whsp(ss);
print_literal(ss,"MUST");
print_whsp(ss);
print_oids(ss,nf->nf_at_oids_must);
print_whsp(ss);
if ( nf->nf_at_oids_may ) {
print_literal(ss,"MAY");
print_whsp(ss);
print_oids(ss,nf->nf_at_oids_may);
print_whsp(ss);
}
print_whsp(ss);
print_extensions(ss, nf->nf_extensions);
print_literal(ss, /*(*/")");
bv->bv_val = safe_strdup(ss);
bv->bv_len = ss->pos;
safe_string_free(ss);
return(bv);
}
char *
ldap_attributetype2str( LDAPAttributeType * at )
{
struct berval bv;
if (ldap_attributetype2bv( at, &bv ))
return(bv.bv_val);
else
return NULL;
}
struct berval *
ldap_attributetype2bv( LDAPAttributeType * at, struct berval *bv )
{
safe_string * ss;
if ( !at || !bv )
return NULL;
ss = new_safe_string(256);
if ( !ss )
return NULL;
print_literal(ss,"("/*)*/);
print_whsp(ss);
print_numericoid(ss, at->at_oid);
print_whsp(ss);
if ( at->at_names ) {
print_literal(ss,"NAME");
print_qdescrs(ss,at->at_names);
}
if ( at->at_desc ) {
print_literal(ss,"DESC");
print_qdstring(ss,at->at_desc);
}
if ( at->at_obsolete ) {
print_literal(ss, "OBSOLETE");
print_whsp(ss);
}
if ( at->at_sup_oid ) {
print_literal(ss,"SUP");
print_woid(ss,at->at_sup_oid);
}
if ( at->at_equality_oid ) {
print_literal(ss,"EQUALITY");
print_woid(ss,at->at_equality_oid);
}
if ( at->at_ordering_oid ) {
print_literal(ss,"ORDERING");
print_woid(ss,at->at_ordering_oid);
}
if ( at->at_substr_oid ) {
print_literal(ss,"SUBSTR");
print_woid(ss,at->at_substr_oid);
}
if ( at->at_syntax_oid ) {
print_literal(ss,"SYNTAX");
print_whsp(ss);
print_noidlen(ss,at->at_syntax_oid,at->at_syntax_len);
print_whsp(ss);
}
if ( at->at_single_value == LDAP_SCHEMA_YES ) {
print_literal(ss,"SINGLE-VALUE");
print_whsp(ss);
}
if ( at->at_collective == LDAP_SCHEMA_YES ) {
print_literal(ss,"COLLECTIVE");
print_whsp(ss);
}
if ( at->at_no_user_mod == LDAP_SCHEMA_YES ) {
print_literal(ss,"NO-USER-MODIFICATION");
print_whsp(ss);
}
if ( at->at_usage != LDAP_SCHEMA_USER_APPLICATIONS ) {
print_literal(ss,"USAGE");
print_whsp(ss);
switch (at->at_usage) {
case LDAP_SCHEMA_DIRECTORY_OPERATION:
print_literal(ss,"directoryOperation");
break;
case LDAP_SCHEMA_DISTRIBUTED_OPERATION:
print_literal(ss,"distributedOperation");
break;
case LDAP_SCHEMA_DSA_OPERATION:
print_literal(ss,"dSAOperation");
break;
default:
print_literal(ss,"UNKNOWN");
break;
}
}
print_whsp(ss);
print_extensions(ss, at->at_extensions);
print_literal(ss,/*(*/")");
bv->bv_val = safe_strdup(ss);
bv->bv_len = ss->pos;
safe_string_free(ss);
return(bv);
}
/*
* Now come the parsers. There is one parser for each entity type:
* objectclasses, attributetypes, etc.
*
* Each of them is written as a recursive-descent parser, except that
* none of them is really recursive. But the idea is kept: there
* is one routine per non-terminal that eithers gobbles lexical tokens
* or calls lower-level routines, etc.
*
* The scanner is implemented in the routine get_token. Actually,
* get_token is more than a scanner and will return tokens that are
* in fact non-terminals in the grammar. So you can see the whole
* approach as the combination of a low-level bottom-up recognizer
* combined with a scanner and a number of top-down parsers. Or just
* consider that the real grammars recognized by the parsers are not
* those of the standards. As a matter of fact, our parsers are more
* liberal than the spec when there is no ambiguity.
*
* The difference is pretty academic (modulo bugs or incorrect
* interpretation of the specs).
*/
typedef enum tk_t {
TK_NOENDQUOTE = -2,
TK_OUTOFMEM = -1,
TK_EOS = 0,
TK_UNEXPCHAR = 1,
TK_BAREWORD = 2,
TK_QDSTRING = 3,
TK_LEFTPAREN = 4,
TK_RIGHTPAREN = 5,
TK_DOLLAR = 6,
TK_QDESCR = TK_QDSTRING
} tk_t;
static tk_t
get_token( const char ** sp, char ** token_val )
{
tk_t kind;
const char * p;
const char * q;
char * res;
*token_val = NULL;
switch (**sp) {
case '\0':
kind = TK_EOS;
(*sp)++;
break;
case '(':
kind = TK_LEFTPAREN;
(*sp)++;
break;
case ')':
kind = TK_RIGHTPAREN;
(*sp)++;
break;
case '$':
kind = TK_DOLLAR;
(*sp)++;
break;
case '\'':
kind = TK_QDSTRING;
(*sp)++;
p = *sp;
while ( **sp != '\'' && **sp != '\0' )
(*sp)++;
if ( **sp == '\'' ) {
q = *sp;
res = LDAP_MALLOC(q-p+1);
if ( !res ) {
kind = TK_OUTOFMEM;
} else {
strncpy(res,p,q-p);
res[q-p] = '\0';
*token_val = res;
}
(*sp)++;
} else {
kind = TK_NOENDQUOTE;
}
break;
default:
kind = TK_BAREWORD;
p = *sp;
while ( !LDAP_SPACE(**sp) &&
**sp != '(' &&
**sp != ')' &&
**sp != '$' &&
**sp != '\'' &&
/* for suggested minimum upper bound on the number
* of characters (RFC 4517) */
**sp != '{' &&
**sp != '\0' )
(*sp)++;
q = *sp;
res = LDAP_MALLOC(q-p+1);
if ( !res ) {
kind = TK_OUTOFMEM;
} else {
strncpy(res,p,q-p);
res[q-p] = '\0';
*token_val = res;
}
break;
/* kind = TK_UNEXPCHAR; */
/* break; */
}
return kind;
}
/* Gobble optional whitespace */
static void
parse_whsp(const char **sp)
{
while (LDAP_SPACE(**sp))
(*sp)++;
}
/* TBC:!!
* General note for all parsers: to guarantee the algorithm halts they
* must always advance the pointer even when an error is found. For
* this one is not that important since an error here is fatal at the
* upper layers, but it is a simple strategy that will not get in
* endless loops.
*/
/* Parse a sequence of dot-separated decimal strings */
char *
ldap_int_parse_numericoid(const char **sp, int *code, const int flags)
{
char * res = NULL;
const char * start = *sp;
int len;
int quoted = 0;
/* Netscape puts the SYNTAX value in quotes (incorrectly) */
if ( flags & LDAP_SCHEMA_ALLOW_QUOTED && **sp == '\'' ) {
quoted = 1;
(*sp)++;
start++;
}
/* Each iteration of this loop gets one decimal string */
while (**sp) {
if ( !LDAP_DIGIT(**sp) ) {
/*
* Initial char is not a digit or char after dot is
* not a digit
*/
*code = LDAP_SCHERR_NODIGIT;
return NULL;
}
(*sp)++;
while ( LDAP_DIGIT(**sp) )
(*sp)++;
if ( **sp != '.' )
break;
/* Otherwise, gobble the dot and loop again */
(*sp)++;
}
/* Now *sp points at the char past the numericoid. Perfect. */
len = *sp - start;
if ( flags & LDAP_SCHEMA_ALLOW_QUOTED && quoted ) {
if ( **sp == '\'' ) {
(*sp)++;
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
return NULL;
}
}
if (flags & LDAP_SCHEMA_SKIP) {
res = (char *)start;
} else {
res = LDAP_MALLOC(len+1);
if (!res) {
*code = LDAP_SCHERR_OUTOFMEM;
return(NULL);
}
strncpy(res,start,len);
res[len] = '\0';
}
return(res);
}
/* Parse a sequence of dot-separated decimal strings */
int
ldap_int_parse_ruleid(const char **sp, int *code, const int flags, int *ruleid)
{
*ruleid=0;
if ( !LDAP_DIGIT(**sp) ) {
*code = LDAP_SCHERR_NODIGIT;
return -1;
}
*ruleid = (**sp) - '0';
(*sp)++;
while ( LDAP_DIGIT(**sp) ) {
*ruleid *= 10;
*ruleid += (**sp) - '0';
(*sp)++;
}
return 0;
}
/* Parse a qdescr or a list of them enclosed in () */
static char **
parse_qdescrs(const char **sp, int *code)
{
char ** res;
char ** res1;
tk_t kind;
char * sval;
int size;
int pos;
parse_whsp(sp);
kind = get_token(sp,&sval);
if ( kind == TK_LEFTPAREN ) {
/* Let's presume there will be at least 2 entries */
size = 3;
res = LDAP_CALLOC(3,sizeof(char *));
if ( !res ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
pos = 0;
while (1) {
parse_whsp(sp);
kind = get_token(sp,&sval);
if ( kind == TK_RIGHTPAREN )
break;
if ( kind == TK_QDESCR ) {
if ( pos == size-2 ) {
size++;
res1 = LDAP_REALLOC(res,size*sizeof(char *));
if ( !res1 ) {
LDAP_VFREE(res);
LDAP_FREE(sval);
*code = LDAP_SCHERR_OUTOFMEM;
return(NULL);
}
res = res1;
}
res[pos++] = sval;
res[pos] = NULL;
parse_whsp(sp);
} else {
LDAP_VFREE(res);
LDAP_FREE(sval);
*code = LDAP_SCHERR_UNEXPTOKEN;
return(NULL);
}
}
parse_whsp(sp);
return(res);
} else if ( kind == TK_QDESCR ) {
res = LDAP_CALLOC(2,sizeof(char *));
if ( !res ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
res[0] = sval;
res[1] = NULL;
parse_whsp(sp);
return res;
} else {
LDAP_FREE(sval);
*code = LDAP_SCHERR_BADNAME;
return NULL;
}
}
/* Parse a woid */
static char *
parse_woid(const char **sp, int *code)
{
char * sval;
tk_t kind;
parse_whsp(sp);
kind = get_token(sp, &sval);
if ( kind != TK_BAREWORD ) {
LDAP_FREE(sval);
*code = LDAP_SCHERR_UNEXPTOKEN;
return NULL;
}
parse_whsp(sp);
return sval;
}
/* Parse a noidlen */
static char *
parse_noidlen(const char **sp, int *code, int *len, int flags)
{
char * sval;
const char *savepos;
int quoted = 0;
int allow_quoted = ( flags & LDAP_SCHEMA_ALLOW_QUOTED );
int allow_oidmacro = ( flags & LDAP_SCHEMA_ALLOW_OID_MACRO );
*len = 0;
/* Netscape puts the SYNTAX value in quotes (incorrectly) */
if ( allow_quoted && **sp == '\'' ) {
quoted = 1;
(*sp)++;
}
savepos = *sp;
sval = ldap_int_parse_numericoid(sp, code, 0);
if ( !sval ) {
if ( allow_oidmacro
&& *sp == savepos
&& *code == LDAP_SCHERR_NODIGIT )
{
if ( get_token(sp, &sval) != TK_BAREWORD ) {
if ( sval != NULL ) {
LDAP_FREE(sval);
}
return NULL;
}
} else {
return NULL;
}
}
if ( **sp == '{' /*}*/ ) {
(*sp)++;
*len = atoi(*sp);
while ( LDAP_DIGIT(**sp) )
(*sp)++;
if ( **sp != /*{*/ '}' ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
LDAP_FREE(sval);
return NULL;
}
(*sp)++;
}
if ( allow_quoted && quoted ) {
if ( **sp == '\'' ) {
(*sp)++;
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
LDAP_FREE(sval);
return NULL;
}
}
return sval;
}
/*
* Next routine will accept a qdstring in place of an oid if
* allow_quoted is set. This is necessary to interoperate with
* Netscape Directory server that will improperly quote each oid (at
* least those of the descr kind) in the SUP clause.
*/
/* Parse a woid or a $-separated list of them enclosed in () */
static char **
parse_oids(const char **sp, int *code, const int allow_quoted)
{
char ** res;
char ** res1;
tk_t kind;
char * sval;
int size;
int pos;
/*
* Strictly speaking, doing this here accepts whsp before the
* ( at the beginning of an oidlist, but this is harmless. Also,
* we are very liberal in what we accept as an OID. Maybe
* refine later.
*/
parse_whsp(sp);
kind = get_token(sp,&sval);
if ( kind == TK_LEFTPAREN ) {
/* Let's presume there will be at least 2 entries */
size = 3;
res = LDAP_CALLOC(3,sizeof(char *));
if ( !res ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
pos = 0;
parse_whsp(sp);
kind = get_token(sp,&sval);
if ( kind == TK_BAREWORD ||
( allow_quoted && kind == TK_QDSTRING ) ) {
res[pos++] = sval;
res[pos] = NULL;
} else if ( kind == TK_RIGHTPAREN ) {
/* FIXME: be liberal in what we accept... */
parse_whsp(sp);
LDAP_FREE(res);
return NULL;
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
LDAP_FREE(sval);
LDAP_VFREE(res);
return NULL;
}
parse_whsp(sp);
while (1) {
kind = get_token(sp,&sval);
if ( kind == TK_RIGHTPAREN )
break;
if ( kind == TK_DOLLAR ) {
parse_whsp(sp);
kind = get_token(sp,&sval);
if ( kind == TK_BAREWORD ||
( allow_quoted &&
kind == TK_QDSTRING ) ) {
if ( pos == size-2 ) {
size++;
res1 = LDAP_REALLOC(res,size*sizeof(char *));
if ( !res1 ) {
LDAP_FREE(sval);
LDAP_VFREE(res);
*code = LDAP_SCHERR_OUTOFMEM;
return(NULL);
}
res = res1;
}
res[pos++] = sval;
res[pos] = NULL;
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
LDAP_FREE(sval);
LDAP_VFREE(res);
return NULL;
}
parse_whsp(sp);
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
LDAP_FREE(sval);
LDAP_VFREE(res);
return NULL;
}
}
parse_whsp(sp);
return(res);
} else if ( kind == TK_BAREWORD ||
( allow_quoted && kind == TK_QDSTRING ) ) {
res = LDAP_CALLOC(2,sizeof(char *));
if ( !res ) {
LDAP_FREE(sval);
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
res[0] = sval;
res[1] = NULL;
parse_whsp(sp);
return res;
} else {
LDAP_FREE(sval);
*code = LDAP_SCHERR_BADNAME;
return NULL;
}
}
static int
add_extension(LDAPSchemaExtensionItem ***extensions,
char * name, char ** values)
{
int n;
LDAPSchemaExtensionItem **tmp, *ext;
ext = LDAP_CALLOC(1, sizeof(LDAPSchemaExtensionItem));
if ( !ext )
return 1;
ext->lsei_name = name;
ext->lsei_values = values;
if ( !*extensions ) {
*extensions =
LDAP_CALLOC(2, sizeof(LDAPSchemaExtensionItem *));
if ( !*extensions ) {
LDAP_FREE( ext );
return 1;
}
n = 0;
} else {
for ( n=0; (*extensions)[n] != NULL; n++ )
;
tmp = LDAP_REALLOC(*extensions,
(n+2)*sizeof(LDAPSchemaExtensionItem *));
if ( !tmp ) {
LDAP_FREE( ext );
return 1;
}
*extensions = tmp;
}
(*extensions)[n] = ext;
(*extensions)[n+1] = NULL;
return 0;
}
static void
free_extensions(LDAPSchemaExtensionItem **extensions)
{
LDAPSchemaExtensionItem **ext;
if ( extensions ) {
for ( ext = extensions; *ext != NULL; ext++ ) {
LDAP_FREE((*ext)->lsei_name);
LDAP_VFREE((*ext)->lsei_values);
LDAP_FREE(*ext);
}
LDAP_FREE(extensions);
}
}
void
ldap_syntax_free( LDAPSyntax * syn )
{
if ( !syn ) return;
LDAP_FREE(syn->syn_oid);
if (syn->syn_names) LDAP_VFREE(syn->syn_names);
if (syn->syn_desc) LDAP_FREE(syn->syn_desc);
free_extensions(syn->syn_extensions);
LDAP_FREE(syn);
}
LDAPSyntax *
ldap_str2syntax( LDAP_CONST char * s,
int * code,
LDAP_CONST char ** errp,
LDAP_CONST unsigned flags )
{
tk_t kind;
const char * ss = s;
char * sval;
int seen_name = 0;
int seen_desc = 0;
LDAPSyntax * syn;
char ** ext_vals;
if ( !s ) {
*code = LDAP_SCHERR_EMPTY;
*errp = "";
return NULL;
}
*errp = s;
syn = LDAP_CALLOC(1,sizeof(LDAPSyntax));
if ( !syn ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
kind = get_token(&ss,&sval);
if ( kind != TK_LEFTPAREN ) {
LDAP_FREE(sval);
*code = LDAP_SCHERR_NOLEFTPAREN;
ldap_syntax_free(syn);
return NULL;
}
parse_whsp(&ss);
syn->syn_oid = ldap_int_parse_numericoid(&ss,code,0);
if ( !syn->syn_oid ) {
*errp = ss;
ldap_syntax_free(syn);
return NULL;
}
parse_whsp(&ss);
/*
* Beyond this point we will be liberal and accept the items
* in any order.
*/
while (1) {
kind = get_token(&ss,&sval);
switch (kind) {
case TK_EOS:
*code = LDAP_SCHERR_NORIGHTPAREN;
*errp = EndOfInput;
ldap_syntax_free(syn);
return NULL;
case TK_RIGHTPAREN:
return syn;
case TK_BAREWORD:
if ( !strcasecmp(sval,"NAME") ) {
LDAP_FREE(sval);
if ( seen_name ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_syntax_free(syn);
return(NULL);
}
seen_name = 1;
syn->syn_names = parse_qdescrs(&ss,code);
if ( !syn->syn_names ) {
if ( *code != LDAP_SCHERR_OUTOFMEM )
*code = LDAP_SCHERR_BADNAME;
*errp = ss;
ldap_syntax_free(syn);
return NULL;
}
} else if ( !strcasecmp(sval,"DESC") ) {
LDAP_FREE(sval);
if ( seen_desc ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_syntax_free(syn);
return(NULL);
}
seen_desc = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_QDSTRING ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_syntax_free(syn);
return NULL;
}
syn->syn_desc = sval;
parse_whsp(&ss);
} else if ( sval[0] == 'X' && sval[1] == '-' ) {
/* Should be parse_qdstrings */
ext_vals = parse_qdescrs(&ss, code);
if ( !ext_vals ) {
*errp = ss;
ldap_syntax_free(syn);
return NULL;
}
if ( add_extension(&syn->syn_extensions,
sval, ext_vals) ) {
*code = LDAP_SCHERR_OUTOFMEM;
*errp = ss;
LDAP_FREE(sval);
ldap_syntax_free(syn);
return NULL;
}
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_syntax_free(syn);
return NULL;
}
break;
default:
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_syntax_free(syn);
return NULL;
}
}
}
void
ldap_matchingrule_free( LDAPMatchingRule * mr )
{
if (!mr) return;
LDAP_FREE(mr->mr_oid);
if (mr->mr_names) LDAP_VFREE(mr->mr_names);
if (mr->mr_desc) LDAP_FREE(mr->mr_desc);
if (mr->mr_syntax_oid) LDAP_FREE(mr->mr_syntax_oid);
free_extensions(mr->mr_extensions);
LDAP_FREE(mr);
}
LDAPMatchingRule *
ldap_str2matchingrule( LDAP_CONST char * s,
int * code,
LDAP_CONST char ** errp,
LDAP_CONST unsigned flags )
{
tk_t kind;
const char * ss = s;
char * sval;
int seen_name = 0;
int seen_desc = 0;
int seen_obsolete = 0;
int seen_syntax = 0;
LDAPMatchingRule * mr;
char ** ext_vals;
const char * savepos;
if ( !s ) {
*code = LDAP_SCHERR_EMPTY;
*errp = "";
return NULL;
}
*errp = s;
mr = LDAP_CALLOC(1,sizeof(LDAPMatchingRule));
if ( !mr ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
kind = get_token(&ss,&sval);
if ( kind != TK_LEFTPAREN ) {
*code = LDAP_SCHERR_NOLEFTPAREN;
LDAP_FREE(sval);
ldap_matchingrule_free(mr);
return NULL;
}
parse_whsp(&ss);
savepos = ss;
mr->mr_oid = ldap_int_parse_numericoid(&ss,code,flags);
if ( !mr->mr_oid ) {
if ( flags & LDAP_SCHEMA_ALLOW_NO_OID ) {
/* Backtracking */
ss = savepos;
kind = get_token(&ss,&sval);
if ( kind == TK_BAREWORD ) {
if ( !strcasecmp(sval, "NAME") ||
!strcasecmp(sval, "DESC") ||
!strcasecmp(sval, "OBSOLETE") ||
!strcasecmp(sval, "SYNTAX") ||
!strncasecmp(sval, "X-", 2) ) {
/* Missing OID, backtrack */
ss = savepos;
} else {
/* Non-numerical OID, ignore */
}
}
LDAP_FREE(sval);
} else {
*errp = ss;
ldap_matchingrule_free(mr);
return NULL;
}
}
parse_whsp(&ss);
/*
* Beyond this point we will be liberal and accept the items
* in any order.
*/
while (1) {
kind = get_token(&ss,&sval);
switch (kind) {
case TK_EOS:
*code = LDAP_SCHERR_NORIGHTPAREN;
*errp = EndOfInput;
ldap_matchingrule_free(mr);
return NULL;
case TK_RIGHTPAREN:
if( !seen_syntax ) {
*code = LDAP_SCHERR_MISSING;
ldap_matchingrule_free(mr);
return NULL;
}
return mr;
case TK_BAREWORD:
if ( !strcasecmp(sval,"NAME") ) {
LDAP_FREE(sval);
if ( seen_name ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_matchingrule_free(mr);
return(NULL);
}
seen_name = 1;
mr->mr_names = parse_qdescrs(&ss,code);
if ( !mr->mr_names ) {
if ( *code != LDAP_SCHERR_OUTOFMEM )
*code = LDAP_SCHERR_BADNAME;
*errp = ss;
ldap_matchingrule_free(mr);
return NULL;
}
} else if ( !strcasecmp(sval,"DESC") ) {
LDAP_FREE(sval);
if ( seen_desc ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_matchingrule_free(mr);
return(NULL);
}
seen_desc = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_QDSTRING ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_matchingrule_free(mr);
return NULL;
}
mr->mr_desc = sval;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"OBSOLETE") ) {
LDAP_FREE(sval);
if ( seen_obsolete ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_matchingrule_free(mr);
return(NULL);
}
seen_obsolete = 1;
mr->mr_obsolete = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"SYNTAX") ) {
LDAP_FREE(sval);
if ( seen_syntax ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_matchingrule_free(mr);
return(NULL);
}
seen_syntax = 1;
parse_whsp(&ss);
mr->mr_syntax_oid =
ldap_int_parse_numericoid(&ss,code,flags);
if ( !mr->mr_syntax_oid ) {
*errp = ss;
ldap_matchingrule_free(mr);
return NULL;
}
parse_whsp(&ss);
} else if ( sval[0] == 'X' && sval[1] == '-' ) {
/* Should be parse_qdstrings */
ext_vals = parse_qdescrs(&ss, code);
if ( !ext_vals ) {
*errp = ss;
ldap_matchingrule_free(mr);
return NULL;
}
if ( add_extension(&mr->mr_extensions,
sval, ext_vals) ) {
*code = LDAP_SCHERR_OUTOFMEM;
*errp = ss;
LDAP_FREE(sval);
ldap_matchingrule_free(mr);
return NULL;
}
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_matchingrule_free(mr);
return NULL;
}
break;
default:
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_matchingrule_free(mr);
return NULL;
}
}
}
void
ldap_matchingruleuse_free( LDAPMatchingRuleUse * mru )
{
if (!mru) return;
LDAP_FREE(mru->mru_oid);
if (mru->mru_names) LDAP_VFREE(mru->mru_names);
if (mru->mru_desc) LDAP_FREE(mru->mru_desc);
if (mru->mru_applies_oids) LDAP_VFREE(mru->mru_applies_oids);
free_extensions(mru->mru_extensions);
LDAP_FREE(mru);
}
LDAPMatchingRuleUse *
ldap_str2matchingruleuse( LDAP_CONST char * s,
int * code,
LDAP_CONST char ** errp,
LDAP_CONST unsigned flags )
{
tk_t kind;
const char * ss = s;
char * sval;
int seen_name = 0;
int seen_desc = 0;
int seen_obsolete = 0;
int seen_applies = 0;
LDAPMatchingRuleUse * mru;
char ** ext_vals;
const char * savepos;
if ( !s ) {
*code = LDAP_SCHERR_EMPTY;
*errp = "";
return NULL;
}
*errp = s;
mru = LDAP_CALLOC(1,sizeof(LDAPMatchingRuleUse));
if ( !mru ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
kind = get_token(&ss,&sval);
if ( kind != TK_LEFTPAREN ) {
*code = LDAP_SCHERR_NOLEFTPAREN;
LDAP_FREE(sval);
ldap_matchingruleuse_free(mru);
return NULL;
}
parse_whsp(&ss);
savepos = ss;
mru->mru_oid = ldap_int_parse_numericoid(&ss,code,flags);
if ( !mru->mru_oid ) {
if ( flags & LDAP_SCHEMA_ALLOW_NO_OID ) {
/* Backtracking */
ss = savepos;
kind = get_token(&ss,&sval);
if ( kind == TK_BAREWORD ) {
if ( !strcasecmp(sval, "NAME") ||
!strcasecmp(sval, "DESC") ||
!strcasecmp(sval, "OBSOLETE") ||
!strcasecmp(sval, "APPLIES") ||
!strncasecmp(sval, "X-", 2) ) {
/* Missing OID, backtrack */
ss = savepos;
} else {
/* Non-numerical OID, ignore */
}
}
LDAP_FREE(sval);
} else {
*errp = ss;
ldap_matchingruleuse_free(mru);
return NULL;
}
}
parse_whsp(&ss);
/*
* Beyond this point we will be liberal and accept the items
* in any order.
*/
while (1) {
kind = get_token(&ss,&sval);
switch (kind) {
case TK_EOS:
*code = LDAP_SCHERR_NORIGHTPAREN;
*errp = EndOfInput;
ldap_matchingruleuse_free(mru);
return NULL;
case TK_RIGHTPAREN:
if( !seen_applies ) {
*code = LDAP_SCHERR_MISSING;
ldap_matchingruleuse_free(mru);
return NULL;
}
return mru;
case TK_BAREWORD:
if ( !strcasecmp(sval,"NAME") ) {
LDAP_FREE(sval);
if ( seen_name ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_matchingruleuse_free(mru);
return(NULL);
}
seen_name = 1;
mru->mru_names = parse_qdescrs(&ss,code);
if ( !mru->mru_names ) {
if ( *code != LDAP_SCHERR_OUTOFMEM )
*code = LDAP_SCHERR_BADNAME;
*errp = ss;
ldap_matchingruleuse_free(mru);
return NULL;
}
} else if ( !strcasecmp(sval,"DESC") ) {
LDAP_FREE(sval);
if ( seen_desc ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_matchingruleuse_free(mru);
return(NULL);
}
seen_desc = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_QDSTRING ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_matchingruleuse_free(mru);
return NULL;
}
mru->mru_desc = sval;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"OBSOLETE") ) {
LDAP_FREE(sval);
if ( seen_obsolete ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_matchingruleuse_free(mru);
return(NULL);
}
seen_obsolete = 1;
mru->mru_obsolete = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"APPLIES") ) {
LDAP_FREE(sval);
if ( seen_applies ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_matchingruleuse_free(mru);
return(NULL);
}
seen_applies = 1;
mru->mru_applies_oids = parse_oids(&ss,
code,
flags);
if ( !mru->mru_applies_oids && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_matchingruleuse_free(mru);
return NULL;
}
} else if ( sval[0] == 'X' && sval[1] == '-' ) {
/* Should be parse_qdstrings */
ext_vals = parse_qdescrs(&ss, code);
if ( !ext_vals ) {
*errp = ss;
ldap_matchingruleuse_free(mru);
return NULL;
}
if ( add_extension(&mru->mru_extensions,
sval, ext_vals) ) {
*code = LDAP_SCHERR_OUTOFMEM;
*errp = ss;
LDAP_FREE(sval);
ldap_matchingruleuse_free(mru);
return NULL;
}
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_matchingruleuse_free(mru);
return NULL;
}
break;
default:
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_matchingruleuse_free(mru);
return NULL;
}
}
}
void
ldap_attributetype_free(LDAPAttributeType * at)
{
if (!at) return;
LDAP_FREE(at->at_oid);
if (at->at_names) LDAP_VFREE(at->at_names);
if (at->at_desc) LDAP_FREE(at->at_desc);
if (at->at_sup_oid) LDAP_FREE(at->at_sup_oid);
if (at->at_equality_oid) LDAP_FREE(at->at_equality_oid);
if (at->at_ordering_oid) LDAP_FREE(at->at_ordering_oid);
if (at->at_substr_oid) LDAP_FREE(at->at_substr_oid);
if (at->at_syntax_oid) LDAP_FREE(at->at_syntax_oid);
free_extensions(at->at_extensions);
LDAP_FREE(at);
}
LDAPAttributeType *
ldap_str2attributetype( LDAP_CONST char * s,
int * code,
LDAP_CONST char ** errp,
LDAP_CONST unsigned flags )
{
tk_t kind;
const char * ss = s;
char * sval;
int seen_name = 0;
int seen_desc = 0;
int seen_obsolete = 0;
int seen_sup = 0;
int seen_equality = 0;
int seen_ordering = 0;
int seen_substr = 0;
int seen_syntax = 0;
int seen_usage = 0;
LDAPAttributeType * at;
char ** ext_vals;
const char * savepos;
if ( !s ) {
*code = LDAP_SCHERR_EMPTY;
*errp = "";
return NULL;
}
*errp = s;
at = LDAP_CALLOC(1,sizeof(LDAPAttributeType));
if ( !at ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
kind = get_token(&ss,&sval);
if ( kind != TK_LEFTPAREN ) {
*code = LDAP_SCHERR_NOLEFTPAREN;
LDAP_FREE(sval);
ldap_attributetype_free(at);
return NULL;
}
/*
* Definitions MUST begin with an OID in the numericoid format.
* However, this routine is used by clients to parse the response
* from servers and very well known servers will provide an OID
* in the wrong format or even no OID at all. We do our best to
* extract info from those servers.
*/
parse_whsp(&ss);
savepos = ss;
at->at_oid = ldap_int_parse_numericoid(&ss,code,0);
if ( !at->at_oid ) {
if ( ( flags & ( LDAP_SCHEMA_ALLOW_NO_OID
| LDAP_SCHEMA_ALLOW_OID_MACRO ) )
&& (ss == savepos) )
{
/* Backtracking */
ss = savepos;
kind = get_token(&ss,&sval);
if ( kind == TK_BAREWORD ) {
if ( !strcasecmp(sval, "NAME") ||
!strcasecmp(sval, "DESC") ||
!strcasecmp(sval, "OBSOLETE") ||
!strcasecmp(sval, "SUP") ||
!strcasecmp(sval, "EQUALITY") ||
!strcasecmp(sval, "ORDERING") ||
!strcasecmp(sval, "SUBSTR") ||
!strcasecmp(sval, "SYNTAX") ||
!strcasecmp(sval, "SINGLE-VALUE") ||
!strcasecmp(sval, "COLLECTIVE") ||
!strcasecmp(sval, "NO-USER-MODIFICATION") ||
!strcasecmp(sval, "USAGE") ||
!strncasecmp(sval, "X-", 2) )
{
/* Missing OID, backtrack */
ss = savepos;
} else if ( flags
& LDAP_SCHEMA_ALLOW_OID_MACRO)
{
/* Non-numerical OID ... */
int len = ss-savepos;
at->at_oid = LDAP_MALLOC(len+1);
if ( !at->at_oid ) {
ldap_attributetype_free(at);
return NULL;
}
strncpy(at->at_oid, savepos, len);
at->at_oid[len] = 0;
}
}
LDAP_FREE(sval);
} else {
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
}
parse_whsp(&ss);
/*
* Beyond this point we will be liberal and accept the items
* in any order.
*/
while (1) {
kind = get_token(&ss,&sval);
switch (kind) {
case TK_EOS:
*code = LDAP_SCHERR_NORIGHTPAREN;
*errp = EndOfInput;
ldap_attributetype_free(at);
return NULL;
case TK_RIGHTPAREN:
return at;
case TK_BAREWORD:
if ( !strcasecmp(sval,"NAME") ) {
LDAP_FREE(sval);
if ( seen_name ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_name = 1;
at->at_names = parse_qdescrs(&ss,code);
if ( !at->at_names ) {
if ( *code != LDAP_SCHERR_OUTOFMEM )
*code = LDAP_SCHERR_BADNAME;
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
} else if ( !strcasecmp(sval,"DESC") ) {
LDAP_FREE(sval);
if ( seen_desc ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_desc = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_QDSTRING ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_attributetype_free(at);
return NULL;
}
at->at_desc = sval;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"OBSOLETE") ) {
LDAP_FREE(sval);
if ( seen_obsolete ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_obsolete = 1;
at->at_obsolete = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"SUP") ) {
LDAP_FREE(sval);
if ( seen_sup ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_sup = 1;
at->at_sup_oid = parse_woid(&ss,code);
if ( !at->at_sup_oid ) {
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
} else if ( !strcasecmp(sval,"EQUALITY") ) {
LDAP_FREE(sval);
if ( seen_equality ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_equality = 1;
at->at_equality_oid = parse_woid(&ss,code);
if ( !at->at_equality_oid ) {
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
} else if ( !strcasecmp(sval,"ORDERING") ) {
LDAP_FREE(sval);
if ( seen_ordering ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_ordering = 1;
at->at_ordering_oid = parse_woid(&ss,code);
if ( !at->at_ordering_oid ) {
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
} else if ( !strcasecmp(sval,"SUBSTR") ) {
LDAP_FREE(sval);
if ( seen_substr ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_substr = 1;
at->at_substr_oid = parse_woid(&ss,code);
if ( !at->at_substr_oid ) {
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
} else if ( !strcasecmp(sval,"SYNTAX") ) {
LDAP_FREE(sval);
if ( seen_syntax ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_syntax = 1;
parse_whsp(&ss);
savepos = ss;
at->at_syntax_oid =
parse_noidlen(&ss,
code,
&at->at_syntax_len,
flags);
if ( !at->at_syntax_oid ) {
if ( flags & LDAP_SCHEMA_ALLOW_OID_MACRO ) {
kind = get_token(&ss,&sval);
if (kind == TK_BAREWORD)
{
char *sp = strchr(sval, '{');
at->at_syntax_oid = sval;
if (sp)
{
*sp++ = 0;
at->at_syntax_len = atoi(sp);
while ( LDAP_DIGIT(*sp) )
sp++;
if ( *sp != '}' ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
}
}
} else {
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
}
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"SINGLE-VALUE") ) {
LDAP_FREE(sval);
if ( at->at_single_value ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
at->at_single_value = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"COLLECTIVE") ) {
LDAP_FREE(sval);
if ( at->at_collective ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
at->at_collective = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"NO-USER-MODIFICATION") ) {
LDAP_FREE(sval);
if ( at->at_no_user_mod ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
at->at_no_user_mod = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"USAGE") ) {
LDAP_FREE(sval);
if ( seen_usage ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_attributetype_free(at);
return(NULL);
}
seen_usage = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_BAREWORD ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_attributetype_free(at);
return NULL;
}
if ( !strcasecmp(sval,"userApplications") )
at->at_usage =
LDAP_SCHEMA_USER_APPLICATIONS;
else if ( !strcasecmp(sval,"directoryOperation") )
at->at_usage =
LDAP_SCHEMA_DIRECTORY_OPERATION;
else if ( !strcasecmp(sval,"distributedOperation") )
at->at_usage =
LDAP_SCHEMA_DISTRIBUTED_OPERATION;
else if ( !strcasecmp(sval,"dSAOperation") )
at->at_usage =
LDAP_SCHEMA_DSA_OPERATION;
else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_attributetype_free(at);
return NULL;
}
LDAP_FREE(sval);
parse_whsp(&ss);
} else if ( sval[0] == 'X' && sval[1] == '-' ) {
/* Should be parse_qdstrings */
ext_vals = parse_qdescrs(&ss, code);
if ( !ext_vals ) {
*errp = ss;
ldap_attributetype_free(at);
return NULL;
}
if ( add_extension(&at->at_extensions,
sval, ext_vals) ) {
*code = LDAP_SCHERR_OUTOFMEM;
*errp = ss;
LDAP_FREE(sval);
ldap_attributetype_free(at);
return NULL;
}
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_attributetype_free(at);
return NULL;
}
break;
default:
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_attributetype_free(at);
return NULL;
}
}
}
void
ldap_objectclass_free(LDAPObjectClass * oc)
{
if (!oc) return;
LDAP_FREE(oc->oc_oid);
if (oc->oc_names) LDAP_VFREE(oc->oc_names);
if (oc->oc_desc) LDAP_FREE(oc->oc_desc);
if (oc->oc_sup_oids) LDAP_VFREE(oc->oc_sup_oids);
if (oc->oc_at_oids_must) LDAP_VFREE(oc->oc_at_oids_must);
if (oc->oc_at_oids_may) LDAP_VFREE(oc->oc_at_oids_may);
free_extensions(oc->oc_extensions);
LDAP_FREE(oc);
}
LDAPObjectClass *
ldap_str2objectclass( LDAP_CONST char * s,
int * code,
LDAP_CONST char ** errp,
LDAP_CONST unsigned flags )
{
tk_t kind;
const char * ss = s;
char * sval;
int seen_name = 0;
int seen_desc = 0;
int seen_obsolete = 0;
int seen_sup = 0;
int seen_kind = 0;
int seen_must = 0;
int seen_may = 0;
LDAPObjectClass * oc;
char ** ext_vals;
const char * savepos;
if ( !s ) {
*code = LDAP_SCHERR_EMPTY;
*errp = "";
return NULL;
}
*errp = s;
oc = LDAP_CALLOC(1,sizeof(LDAPObjectClass));
if ( !oc ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
oc->oc_kind = LDAP_SCHEMA_STRUCTURAL;
kind = get_token(&ss,&sval);
if ( kind != TK_LEFTPAREN ) {
*code = LDAP_SCHERR_NOLEFTPAREN;
LDAP_FREE(sval);
ldap_objectclass_free(oc);
return NULL;
}
/*
* Definitions MUST begin with an OID in the numericoid format.
* However, this routine is used by clients to parse the response
* from servers and very well known servers will provide an OID
* in the wrong format or even no OID at all. We do our best to
* extract info from those servers.
*/
parse_whsp(&ss);
savepos = ss;
oc->oc_oid = ldap_int_parse_numericoid(&ss,code,0);
if ( !oc->oc_oid ) {
if ( (flags & LDAP_SCHEMA_ALLOW_ALL) && (ss == savepos) ) {
/* Backtracking */
ss = savepos;
kind = get_token(&ss,&sval);
if ( kind == TK_BAREWORD ) {
if ( !strcasecmp(sval, "NAME") ||
!strcasecmp(sval, "DESC") ||
!strcasecmp(sval, "OBSOLETE") ||
!strcasecmp(sval, "SUP") ||
!strcasecmp(sval, "ABSTRACT") ||
!strcasecmp(sval, "STRUCTURAL") ||
!strcasecmp(sval, "AUXILIARY") ||
!strcasecmp(sval, "MUST") ||
!strcasecmp(sval, "MAY") ||
!strncasecmp(sval, "X-", 2) ) {
/* Missing OID, backtrack */
ss = savepos;
} else if ( flags &
LDAP_SCHEMA_ALLOW_OID_MACRO ) {
/* Non-numerical OID, ignore */
int len = ss-savepos;
oc->oc_oid = LDAP_MALLOC(len+1);
if ( !oc->oc_oid ) {
ldap_objectclass_free(oc);
return NULL;
}
strncpy(oc->oc_oid, savepos, len);
oc->oc_oid[len] = 0;
}
}
LDAP_FREE(sval);
*code = 0;
} else {
*errp = ss;
ldap_objectclass_free(oc);
return NULL;
}
}
parse_whsp(&ss);
/*
* Beyond this point we will be liberal an accept the items
* in any order.
*/
while (1) {
kind = get_token(&ss,&sval);
switch (kind) {
case TK_EOS:
*code = LDAP_SCHERR_NORIGHTPAREN;
*errp = EndOfInput;
ldap_objectclass_free(oc);
return NULL;
case TK_RIGHTPAREN:
return oc;
case TK_BAREWORD:
if ( !strcasecmp(sval,"NAME") ) {
LDAP_FREE(sval);
if ( seen_name ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_name = 1;
oc->oc_names = parse_qdescrs(&ss,code);
if ( !oc->oc_names ) {
if ( *code != LDAP_SCHERR_OUTOFMEM )
*code = LDAP_SCHERR_BADNAME;
*errp = ss;
ldap_objectclass_free(oc);
return NULL;
}
} else if ( !strcasecmp(sval,"DESC") ) {
LDAP_FREE(sval);
if ( seen_desc ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_desc = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_QDSTRING ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_objectclass_free(oc);
return NULL;
}
oc->oc_desc = sval;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"OBSOLETE") ) {
LDAP_FREE(sval);
if ( seen_obsolete ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_obsolete = 1;
oc->oc_obsolete = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"SUP") ) {
LDAP_FREE(sval);
if ( seen_sup ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_sup = 1;
oc->oc_sup_oids = parse_oids(&ss,
code,
flags);
if ( !oc->oc_sup_oids && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_objectclass_free(oc);
return NULL;
}
*code = 0;
} else if ( !strcasecmp(sval,"ABSTRACT") ) {
LDAP_FREE(sval);
if ( seen_kind ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_kind = 1;
oc->oc_kind = LDAP_SCHEMA_ABSTRACT;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"STRUCTURAL") ) {
LDAP_FREE(sval);
if ( seen_kind ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_kind = 1;
oc->oc_kind = LDAP_SCHEMA_STRUCTURAL;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"AUXILIARY") ) {
LDAP_FREE(sval);
if ( seen_kind ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_kind = 1;
oc->oc_kind = LDAP_SCHEMA_AUXILIARY;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"MUST") ) {
LDAP_FREE(sval);
if ( seen_must ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_must = 1;
oc->oc_at_oids_must = parse_oids(&ss,code,0);
if ( !oc->oc_at_oids_must && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_objectclass_free(oc);
return NULL;
}
*code = 0;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"MAY") ) {
LDAP_FREE(sval);
if ( seen_may ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_objectclass_free(oc);
return(NULL);
}
seen_may = 1;
oc->oc_at_oids_may = parse_oids(&ss,code,0);
if ( !oc->oc_at_oids_may && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_objectclass_free(oc);
return NULL;
}
*code = 0;
parse_whsp(&ss);
} else if ( sval[0] == 'X' && sval[1] == '-' ) {
/* Should be parse_qdstrings */
ext_vals = parse_qdescrs(&ss, code);
*code = 0;
if ( !ext_vals ) {
*errp = ss;
ldap_objectclass_free(oc);
return NULL;
}
if ( add_extension(&oc->oc_extensions,
sval, ext_vals) ) {
*code = LDAP_SCHERR_OUTOFMEM;
*errp = ss;
LDAP_FREE(sval);
ldap_objectclass_free(oc);
return NULL;
}
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_objectclass_free(oc);
return NULL;
}
break;
default:
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_objectclass_free(oc);
return NULL;
}
}
}
void
ldap_contentrule_free(LDAPContentRule * cr)
{
if (!cr) return;
LDAP_FREE(cr->cr_oid);
if (cr->cr_names) LDAP_VFREE(cr->cr_names);
if (cr->cr_desc) LDAP_FREE(cr->cr_desc);
if (cr->cr_oc_oids_aux) LDAP_VFREE(cr->cr_oc_oids_aux);
if (cr->cr_at_oids_must) LDAP_VFREE(cr->cr_at_oids_must);
if (cr->cr_at_oids_may) LDAP_VFREE(cr->cr_at_oids_may);
if (cr->cr_at_oids_not) LDAP_VFREE(cr->cr_at_oids_not);
free_extensions(cr->cr_extensions);
LDAP_FREE(cr);
}
LDAPContentRule *
ldap_str2contentrule( LDAP_CONST char * s,
int * code,
LDAP_CONST char ** errp,
LDAP_CONST unsigned flags )
{
tk_t kind;
const char * ss = s;
char * sval;
int seen_name = 0;
int seen_desc = 0;
int seen_obsolete = 0;
int seen_aux = 0;
int seen_must = 0;
int seen_may = 0;
int seen_not = 0;
LDAPContentRule * cr;
char ** ext_vals;
const char * savepos;
if ( !s ) {
*code = LDAP_SCHERR_EMPTY;
*errp = "";
return NULL;
}
*errp = s;
cr = LDAP_CALLOC(1,sizeof(LDAPContentRule));
if ( !cr ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
kind = get_token(&ss,&sval);
if ( kind != TK_LEFTPAREN ) {
*code = LDAP_SCHERR_NOLEFTPAREN;
LDAP_FREE(sval);
ldap_contentrule_free(cr);
return NULL;
}
/*
* Definitions MUST begin with an OID in the numericoid format.
*/
parse_whsp(&ss);
savepos = ss;
cr->cr_oid = ldap_int_parse_numericoid(&ss,code,0);
if ( !cr->cr_oid ) {
if ( (flags & LDAP_SCHEMA_ALLOW_ALL) && (ss == savepos) ) {
/* Backtracking */
ss = savepos;
kind = get_token(&ss,&sval);
if ( kind == TK_BAREWORD ) {
if ( !strcasecmp(sval, "NAME") ||
!strcasecmp(sval, "DESC") ||
!strcasecmp(sval, "OBSOLETE") ||
!strcasecmp(sval, "AUX") ||
!strcasecmp(sval, "MUST") ||
!strcasecmp(sval, "MAY") ||
!strcasecmp(sval, "NOT") ||
!strncasecmp(sval, "X-", 2) ) {
/* Missing OID, backtrack */
ss = savepos;
} else if ( flags &
LDAP_SCHEMA_ALLOW_OID_MACRO ) {
/* Non-numerical OID, ignore */
int len = ss-savepos;
cr->cr_oid = LDAP_MALLOC(len+1);
if ( !cr->cr_oid ) {
ldap_contentrule_free(cr);
return NULL;
}
strncpy(cr->cr_oid, savepos, len);
cr->cr_oid[len] = 0;
}
}
LDAP_FREE(sval);
} else {
*errp = ss;
ldap_contentrule_free(cr);
return NULL;
}
}
parse_whsp(&ss);
/*
* Beyond this point we will be liberal an accept the items
* in any order.
*/
while (1) {
kind = get_token(&ss,&sval);
switch (kind) {
case TK_EOS:
*code = LDAP_SCHERR_NORIGHTPAREN;
*errp = EndOfInput;
ldap_contentrule_free(cr);
return NULL;
case TK_RIGHTPAREN:
return cr;
case TK_BAREWORD:
if ( !strcasecmp(sval,"NAME") ) {
LDAP_FREE(sval);
if ( seen_name ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_contentrule_free(cr);
return(NULL);
}
seen_name = 1;
cr->cr_names = parse_qdescrs(&ss,code);
if ( !cr->cr_names ) {
if ( *code != LDAP_SCHERR_OUTOFMEM )
*code = LDAP_SCHERR_BADNAME;
*errp = ss;
ldap_contentrule_free(cr);
return NULL;
}
} else if ( !strcasecmp(sval,"DESC") ) {
LDAP_FREE(sval);
if ( seen_desc ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_contentrule_free(cr);
return(NULL);
}
seen_desc = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_QDSTRING ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_contentrule_free(cr);
return NULL;
}
cr->cr_desc = sval;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"OBSOLETE") ) {
LDAP_FREE(sval);
if ( seen_obsolete ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_contentrule_free(cr);
return(NULL);
}
seen_obsolete = 1;
cr->cr_obsolete = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"AUX") ) {
LDAP_FREE(sval);
if ( seen_aux ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_contentrule_free(cr);
return(NULL);
}
seen_aux = 1;
cr->cr_oc_oids_aux = parse_oids(&ss,code,0);
if ( !cr->cr_oc_oids_aux ) {
*errp = ss;
ldap_contentrule_free(cr);
return NULL;
}
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"MUST") ) {
LDAP_FREE(sval);
if ( seen_must ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_contentrule_free(cr);
return(NULL);
}
seen_must = 1;
cr->cr_at_oids_must = parse_oids(&ss,code,0);
if ( !cr->cr_at_oids_must && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_contentrule_free(cr);
return NULL;
}
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"MAY") ) {
LDAP_FREE(sval);
if ( seen_may ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_contentrule_free(cr);
return(NULL);
}
seen_may = 1;
cr->cr_at_oids_may = parse_oids(&ss,code,0);
if ( !cr->cr_at_oids_may && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_contentrule_free(cr);
return NULL;
}
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"NOT") ) {
LDAP_FREE(sval);
if ( seen_not ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_contentrule_free(cr);
return(NULL);
}
seen_not = 1;
cr->cr_at_oids_not = parse_oids(&ss,code,0);
if ( !cr->cr_at_oids_not && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_contentrule_free(cr);
return NULL;
}
parse_whsp(&ss);
} else if ( sval[0] == 'X' && sval[1] == '-' ) {
/* Should be parse_qdstrings */
ext_vals = parse_qdescrs(&ss, code);
if ( !ext_vals ) {
*errp = ss;
ldap_contentrule_free(cr);
return NULL;
}
if ( add_extension(&cr->cr_extensions,
sval, ext_vals) ) {
*code = LDAP_SCHERR_OUTOFMEM;
*errp = ss;
LDAP_FREE(sval);
ldap_contentrule_free(cr);
return NULL;
}
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_contentrule_free(cr);
return NULL;
}
break;
default:
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_contentrule_free(cr);
return NULL;
}
}
}
void
ldap_structurerule_free(LDAPStructureRule * sr)
{
if (!sr) return;
if (sr->sr_names) LDAP_VFREE(sr->sr_names);
if (sr->sr_desc) LDAP_FREE(sr->sr_desc);
if (sr->sr_nameform) LDAP_FREE(sr->sr_nameform);
if (sr->sr_sup_ruleids) LDAP_FREE(sr->sr_sup_ruleids);
free_extensions(sr->sr_extensions);
LDAP_FREE(sr);
}
LDAPStructureRule *
ldap_str2structurerule( LDAP_CONST char * s,
int * code,
LDAP_CONST char ** errp,
LDAP_CONST unsigned flags )
{
tk_t kind;
int ret;
const char * ss = s;
char * sval;
int seen_name = 0;
int seen_desc = 0;
int seen_obsolete = 0;
int seen_nameform = 0;
LDAPStructureRule * sr;
char ** ext_vals;
const char * savepos;
if ( !s ) {
*code = LDAP_SCHERR_EMPTY;
*errp = "";
return NULL;
}
*errp = s;
sr = LDAP_CALLOC(1,sizeof(LDAPStructureRule));
if ( !sr ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
kind = get_token(&ss,&sval);
if ( kind != TK_LEFTPAREN ) {
*code = LDAP_SCHERR_NOLEFTPAREN;
LDAP_FREE(sval);
ldap_structurerule_free(sr);
return NULL;
}
/*
* Definitions MUST begin with a ruleid.
*/
parse_whsp(&ss);
savepos = ss;
ret = ldap_int_parse_ruleid(&ss,code,0,&sr->sr_ruleid);
if ( ret ) {
*errp = ss;
ldap_structurerule_free(sr);
return NULL;
}
parse_whsp(&ss);
/*
* Beyond this point we will be liberal an accept the items
* in any order.
*/
while (1) {
kind = get_token(&ss,&sval);
switch (kind) {
case TK_EOS:
*code = LDAP_SCHERR_NORIGHTPAREN;
*errp = EndOfInput;
ldap_structurerule_free(sr);
return NULL;
case TK_RIGHTPAREN:
if( !seen_nameform ) {
*code = LDAP_SCHERR_MISSING;
ldap_structurerule_free(sr);
return NULL;
}
return sr;
case TK_BAREWORD:
if ( !strcasecmp(sval,"NAME") ) {
LDAP_FREE(sval);
if ( seen_name ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_structurerule_free(sr);
return(NULL);
}
seen_name = 1;
sr->sr_names = parse_qdescrs(&ss,code);
if ( !sr->sr_names ) {
if ( *code != LDAP_SCHERR_OUTOFMEM )
*code = LDAP_SCHERR_BADNAME;
*errp = ss;
ldap_structurerule_free(sr);
return NULL;
}
} else if ( !strcasecmp(sval,"DESC") ) {
LDAP_FREE(sval);
if ( seen_desc ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_structurerule_free(sr);
return(NULL);
}
seen_desc = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_QDSTRING ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_structurerule_free(sr);
return NULL;
}
sr->sr_desc = sval;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"OBSOLETE") ) {
LDAP_FREE(sval);
if ( seen_obsolete ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_structurerule_free(sr);
return(NULL);
}
seen_obsolete = 1;
sr->sr_obsolete = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"FORM") ) {
LDAP_FREE(sval);
if ( seen_nameform ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_structurerule_free(sr);
return(NULL);
}
seen_nameform = 1;
sr->sr_nameform = parse_woid(&ss,code);
if ( !sr->sr_nameform ) {
*errp = ss;
ldap_structurerule_free(sr);
return NULL;
}
parse_whsp(&ss);
} else if ( sval[0] == 'X' && sval[1] == '-' ) {
/* Should be parse_qdstrings */
ext_vals = parse_qdescrs(&ss, code);
if ( !ext_vals ) {
*errp = ss;
ldap_structurerule_free(sr);
return NULL;
}
if ( add_extension(&sr->sr_extensions,
sval, ext_vals) ) {
*code = LDAP_SCHERR_OUTOFMEM;
*errp = ss;
LDAP_FREE(sval);
ldap_structurerule_free(sr);
return NULL;
}
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_structurerule_free(sr);
return NULL;
}
break;
default:
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_structurerule_free(sr);
return NULL;
}
}
}
void
ldap_nameform_free(LDAPNameForm * nf)
{
if (!nf) return;
LDAP_FREE(nf->nf_oid);
if (nf->nf_names) LDAP_VFREE(nf->nf_names);
if (nf->nf_desc) LDAP_FREE(nf->nf_desc);
if (nf->nf_objectclass) LDAP_FREE(nf->nf_objectclass);
if (nf->nf_at_oids_must) LDAP_VFREE(nf->nf_at_oids_must);
if (nf->nf_at_oids_may) LDAP_VFREE(nf->nf_at_oids_may);
free_extensions(nf->nf_extensions);
LDAP_FREE(nf);
}
LDAPNameForm *
ldap_str2nameform( LDAP_CONST char * s,
int * code,
LDAP_CONST char ** errp,
LDAP_CONST unsigned flags )
{
tk_t kind;
const char * ss = s;
char * sval;
int seen_name = 0;
int seen_desc = 0;
int seen_obsolete = 0;
int seen_class = 0;
int seen_must = 0;
int seen_may = 0;
LDAPNameForm * nf;
char ** ext_vals;
const char * savepos;
if ( !s ) {
*code = LDAP_SCHERR_EMPTY;
*errp = "";
return NULL;
}
*errp = s;
nf = LDAP_CALLOC(1,sizeof(LDAPNameForm));
if ( !nf ) {
*code = LDAP_SCHERR_OUTOFMEM;
return NULL;
}
kind = get_token(&ss,&sval);
if ( kind != TK_LEFTPAREN ) {
*code = LDAP_SCHERR_NOLEFTPAREN;
LDAP_FREE(sval);
ldap_nameform_free(nf);
return NULL;
}
/*
* Definitions MUST begin with an OID in the numericoid format.
* However, this routine is used by clients to parse the response
* from servers and very well known servers will provide an OID
* in the wrong format or even no OID at all. We do our best to
* extract info from those servers.
*/
parse_whsp(&ss);
savepos = ss;
nf->nf_oid = ldap_int_parse_numericoid(&ss,code,0);
if ( !nf->nf_oid ) {
*errp = ss;
ldap_nameform_free(nf);
return NULL;
}
parse_whsp(&ss);
/*
* Beyond this point we will be liberal an accept the items
* in any order.
*/
while (1) {
kind = get_token(&ss,&sval);
switch (kind) {
case TK_EOS:
*code = LDAP_SCHERR_NORIGHTPAREN;
*errp = EndOfInput;
ldap_nameform_free(nf);
return NULL;
case TK_RIGHTPAREN:
if( !seen_class || !seen_must ) {
*code = LDAP_SCHERR_MISSING;
ldap_nameform_free(nf);
return NULL;
}
return nf;
case TK_BAREWORD:
if ( !strcasecmp(sval,"NAME") ) {
LDAP_FREE(sval);
if ( seen_name ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_nameform_free(nf);
return(NULL);
}
seen_name = 1;
nf->nf_names = parse_qdescrs(&ss,code);
if ( !nf->nf_names ) {
if ( *code != LDAP_SCHERR_OUTOFMEM )
*code = LDAP_SCHERR_BADNAME;
*errp = ss;
ldap_nameform_free(nf);
return NULL;
}
} else if ( !strcasecmp(sval,"DESC") ) {
LDAP_FREE(sval);
if ( seen_desc ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_nameform_free(nf);
return(NULL);
}
seen_desc = 1;
parse_whsp(&ss);
kind = get_token(&ss,&sval);
if ( kind != TK_QDSTRING ) {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_nameform_free(nf);
return NULL;
}
nf->nf_desc = sval;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"OBSOLETE") ) {
LDAP_FREE(sval);
if ( seen_obsolete ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_nameform_free(nf);
return(NULL);
}
seen_obsolete = 1;
nf->nf_obsolete = LDAP_SCHEMA_YES;
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"OC") ) {
LDAP_FREE(sval);
if ( seen_class ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_nameform_free(nf);
return(NULL);
}
seen_class = 1;
nf->nf_objectclass = parse_woid(&ss,code);
if ( !nf->nf_objectclass ) {
*errp = ss;
ldap_nameform_free(nf);
return NULL;
}
} else if ( !strcasecmp(sval,"MUST") ) {
LDAP_FREE(sval);
if ( seen_must ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_nameform_free(nf);
return(NULL);
}
seen_must = 1;
nf->nf_at_oids_must = parse_oids(&ss,code,0);
if ( !nf->nf_at_oids_must && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_nameform_free(nf);
return NULL;
}
parse_whsp(&ss);
} else if ( !strcasecmp(sval,"MAY") ) {
LDAP_FREE(sval);
if ( seen_may ) {
*code = LDAP_SCHERR_DUPOPT;
*errp = ss;
ldap_nameform_free(nf);
return(NULL);
}
seen_may = 1;
nf->nf_at_oids_may = parse_oids(&ss,code,0);
if ( !nf->nf_at_oids_may && *code != LDAP_SUCCESS ) {
*errp = ss;
ldap_nameform_free(nf);
return NULL;
}
parse_whsp(&ss);
} else if ( sval[0] == 'X' && sval[1] == '-' ) {
/* Should be parse_qdstrings */
ext_vals = parse_qdescrs(&ss, code);
if ( !ext_vals ) {
*errp = ss;
ldap_nameform_free(nf);
return NULL;
}
if ( add_extension(&nf->nf_extensions,
sval, ext_vals) ) {
*code = LDAP_SCHERR_OUTOFMEM;
*errp = ss;
LDAP_FREE(sval);
ldap_nameform_free(nf);
return NULL;
}
} else {
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_nameform_free(nf);
return NULL;
}
break;
default:
*code = LDAP_SCHERR_UNEXPTOKEN;
*errp = ss;
LDAP_FREE(sval);
ldap_nameform_free(nf);
return NULL;
}
}
}
static char *const err2text[] = {
N_("Success"),
N_("Out of memory"),
N_("Unexpected token"),
N_("Missing opening parenthesis"),
N_("Missing closing parenthesis"),
N_("Expecting digit"),
N_("Expecting a name"),
N_("Bad description"),
N_("Bad superiors"),
N_("Duplicate option"),
N_("Unexpected end of data"),
N_("Missing required field"),
N_("Out of order field")
};
char *
ldap_scherr2str(int code)
{
if ( code < 0 || code >= (int)(sizeof(err2text)/sizeof(char *)) ) {
return _("Unknown error");
} else {
return _(err2text[code]);
}
}
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