openldap/servers/slapd/back-ldbm/modify.c
Hallvard Furuseth 7e6ad5100c Protoized, moved extern definitions to .h files, fixed related bugs.
Most function and variable definitions are now preceded by its extern
definition, for error checking.  Retyped a number of functions, usually
to return void.  Fixed a number of printf format errors.

API changes (in ldap/include):
  Added avl_dup_ok, avl_prefixapply, removed ber_fatten (probably typo
  for ber_flatten), retyped ldap_sort_strcasecmp, grew lutil.h.

A number of `extern' declarations are left (some added by protoize), to
be cleaned away later.  Mostly strdup(), strcasecmp(), mktemp(), optind,
optarg, errno.
1998-11-15 22:40:11 +00:00

218 lines
4.8 KiB
C

/* modify.c - ldbm backend modify routine */
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "back-ldbm.h"
#include "proto-back-ldbm.h"
static int add_values(Entry *e, LDAPMod *mod, char *dn);
static int delete_values(Entry *e, LDAPMod *mod, char *dn);
static int replace_values(Entry *e, LDAPMod *mod, char *dn);
int
ldbm_back_modify(
Backend *be,
Connection *conn,
Operation *op,
char *dn,
LDAPMod *mods
)
{
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
char *matched = NULL;
Entry *e;
int i, err;
LDAPMod *mod;
Debug(LDAP_DEBUG_ARGS, "ldbm_back_modify:\n", 0, 0, 0);
if ( (e = dn2entry_w( be, dn, &matched )) == NULL ) {
send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT, matched,
NULL );
if ( matched != NULL ) {
free( matched );
}
return( -1 );
}
/* check for deleted */
/* lock entry */
if ( (err = acl_check_mods( be, conn, op, e, mods )) != LDAP_SUCCESS ) {
send_ldap_result( conn, op, err, NULL, NULL );
goto error_return;
}
for ( mod = mods; mod != NULL; mod = mod->mod_next ) {
switch ( mod->mod_op & ~LDAP_MOD_BVALUES ) {
case LDAP_MOD_ADD:
err = add_values( e, mod, op->o_dn );
break;
case LDAP_MOD_DELETE:
err = delete_values( e, mod, op->o_dn );
break;
case LDAP_MOD_REPLACE:
err = replace_values( e, mod, op->o_dn );
break;
}
if ( err != LDAP_SUCCESS ) {
/* unlock entry, delete from cache */
send_ldap_result( conn, op, err, NULL, NULL );
goto error_return;
}
}
/* check that the entry still obeys the schema */
if ( global_schemacheck && oc_schema_check( e ) != 0 ) {
Debug( LDAP_DEBUG_ANY, "entry failed schema check\n", 0, 0, 0 );
send_ldap_result( conn, op, LDAP_OBJECT_CLASS_VIOLATION, NULL, NULL );
goto error_return;
}
/* check for abandon */
pthread_mutex_lock( &op->o_abandonmutex );
if ( op->o_abandon ) {
pthread_mutex_unlock( &op->o_abandonmutex );
goto error_return;
}
pthread_mutex_unlock( &op->o_abandonmutex );
/* modify indexes */
if ( index_add_mods( be, mods, e->e_id ) != 0 ) {
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL, NULL );
goto error_return;
}
/* check for abandon */
pthread_mutex_lock( &op->o_abandonmutex );
if ( op->o_abandon ) {
pthread_mutex_unlock( &op->o_abandonmutex );
goto error_return;
}
pthread_mutex_unlock( &op->o_abandonmutex );
/* change the entry itself */
if ( id2entry_add( be, e ) != 0 ) {
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL, NULL );
goto error_return;
}
send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL );
cache_return_entry_w( &li->li_cache, e );
return( 0 );
error_return:;
cache_return_entry_w( &li->li_cache, e );
return( -1 );
}
static int
add_values(
Entry *e,
LDAPMod *mod,
char *dn
)
{
int i;
Attribute *a;
/* check if the values we're adding already exist */
if ( (a = attr_find( e->e_attrs, mod->mod_type )) != NULL ) {
for ( i = 0; mod->mod_bvalues[i] != NULL; i++ ) {
if ( value_find( a->a_vals, mod->mod_bvalues[i],
a->a_syntax, 3 ) == 0 ) {
return( LDAP_TYPE_OR_VALUE_EXISTS );
}
}
}
/* no - add them */
if( attr_merge( e, mod->mod_type, mod->mod_bvalues ) != 0 ) {
return( LDAP_CONSTRAINT_VIOLATION );
}
return( LDAP_SUCCESS );
}
static int
delete_values(
Entry *e,
LDAPMod *mod,
char *dn
)
{
int i, j, k, found;
Attribute *a;
/* delete the entire attribute */
if ( mod->mod_bvalues == NULL ) {
Debug( LDAP_DEBUG_ARGS, "removing entire attribute %s\n",
mod->mod_type, 0, 0 );
return( attr_delete( &e->e_attrs, mod->mod_type ) ?
LDAP_NO_SUCH_ATTRIBUTE : LDAP_SUCCESS );
}
/* delete specific values - find the attribute first */
if ( (a = attr_find( e->e_attrs, mod->mod_type )) == NULL ) {
Debug( LDAP_DEBUG_ARGS, "could not find attribute %s\n",
mod->mod_type, 0, 0 );
return( LDAP_NO_SUCH_ATTRIBUTE );
}
/* find each value to delete */
for ( i = 0; mod->mod_bvalues[i] != NULL; i++ ) {
found = 0;
for ( j = 0; a->a_vals[j] != NULL; j++ ) {
if ( value_cmp( mod->mod_bvalues[i], a->a_vals[j],
a->a_syntax, 3 ) != 0 ) {
continue;
}
found = 1;
/* found a matching value - delete it */
ber_bvfree( a->a_vals[j] );
for ( k = j + 1; a->a_vals[k] != NULL; k++ ) {
a->a_vals[k - 1] = a->a_vals[k];
}
a->a_vals[k - 1] = NULL;
break;
}
/* looked through them all w/o finding it */
if ( ! found ) {
Debug( LDAP_DEBUG_ARGS,
"could not find value for attr %s\n",
mod->mod_type, 0, 0 );
return( LDAP_NO_SUCH_ATTRIBUTE );
}
}
return( LDAP_SUCCESS );
}
static int
replace_values(
Entry *e,
LDAPMod *mod,
char *dn
)
{
(void) attr_delete( &e->e_attrs, mod->mod_type );
if ( attr_merge( e, mod->mod_type, mod->mod_bvalues ) != 0 ) {
return( LDAP_CONSTRAINT_VIOLATION );
}
return( LDAP_SUCCESS );
}