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[openldap] / libraries / libldap / vlvctrl.c

diff --git a/libraries/libldap/vlvctrl.c b/libraries/libldap/vlvctrl.c
index 53967800111dc25f47dbab2e6ec0f461f752edef..91b15a116659a78a457b793977ccd2146ae37694 100644 (file)
--- a/libraries/libldap/vlvctrl.c
+++ b/libraries/libldap/vlvctrl.c
@@ -1,7 +1,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *

- * Copyright 1998-2006 The OpenLDAP Foundation.
+ * Copyright 1998-2009 The OpenLDAP Foundation.

  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without


@@ -27,9 +27,6 @@
  * can be found in the file "build/LICENSE-2.0.1" in this distribution
  * of OpenLDAP Software.
  */
  * can be found in the file "build/LICENSE-2.0.1" in this distribution
  * of OpenLDAP Software.
  */

-/* Portions Copyright (C) The Internet Society (1997)
- * ASN.1 fragments are from RFC 2251; see RFC for full legal notices.
- */

 
 #include "portable.h"
 
 
 #include "portable.h"
 


@@ -50,19 +47,18 @@
    
    Create and encode the Virtual List View control.
 
    
    Create and encode the Virtual List View control.
 

-   ld        (IN)  An LDAP session handle, as obtained from a call to
-                                  ldap_init().
+   ld        (IN)  An LDAP session handle.

    
    vlvinfop  (IN)  The address of an LDAPVLVInfo structure whose contents 
                                   are used to construct the value of the control
                                   that is created.
    
    
    vlvinfop  (IN)  The address of an LDAPVLVInfo structure whose contents 
                                   are used to construct the value of the control
                                   that is created.
    

-   ctrlp     (OUT) A result parameter that will be assigned the address
+   value     (OUT) A struct berval that contains the value to be assigned to the ldctl_value member

                                   of an LDAPControl structure that contains the 
                                   of an LDAPControl structure that contains the 

-                                  VirtualListViewRequest control created by this function.
-                                  The memory occupied by the LDAPControl structure
+                                  VirtualListViewRequest control.
+                                  The bv_val member of the berval structure

                                   SHOULD be freed when it is no longer in use by
                                   SHOULD be freed when it is no longer in use by

-                                  calling ldap_control_free().
+                                  calling ldap_memfree().

                                          
    
    Ber encoding
                                          
    
    Ber encoding


@@ -87,75 +83,162 @@
  ---*/
 
 int
  ---*/
 
 int

-ldap_create_vlv_control( LDAP *ld,
-                                                LDAPVLVInfo *vlvinfop,
-                                                LDAPControl **ctrlp )
+ldap_create_vlv_control_value(
+       LDAP *ld,
+       LDAPVLVInfo *vlvinfop,
+       struct berval *value )

 {
        ber_tag_t tag;
        BerElement *ber;
 
 {
        ber_tag_t tag;
        BerElement *ber;
 

-       assert( ld != NULL );
+       if ( ld == NULL || vlvinfop == NULL || value == NULL ) {
+               if ( ld )
+                       ld->ld_errno = LDAP_PARAM_ERROR;
+               return LDAP_PARAM_ERROR;
+       }
+

        assert( LDAP_VALID( ld ) );
        assert( LDAP_VALID( ld ) );

-       assert( vlvinfop != NULL );
-       assert( ctrlp != NULL );

 
 

-       if ((ber = ldap_alloc_ber_with_options(ld)) == NULL) {
+       value->bv_val = NULL;
+       value->bv_len = 0;
+       ld->ld_errno = LDAP_SUCCESS;
+
+       ber = ldap_alloc_ber_with_options( ld );
+       if ( ber == NULL ) {

                ld->ld_errno = LDAP_NO_MEMORY;
                ld->ld_errno = LDAP_NO_MEMORY;

-               return(LDAP_NO_MEMORY);
+               return ld->ld_errno;

        }
 
        }
 

-       tag = ber_printf(ber, "{ii" /*}*/,
+       tag = ber_printf( ber, "{ii" /*}*/,

                vlvinfop->ldvlv_before_count,
                vlvinfop->ldvlv_before_count,

-               vlvinfop->ldvlv_after_count);
-       if( tag == LBER_ERROR ) goto exit;
+               vlvinfop->ldvlv_after_count );
+       if ( tag == LBER_ERROR ) {
+               goto error_return;
+       }

 
 

-       if (vlvinfop->ldvlv_attrvalue == NULL) {
-               tag = ber_printf(ber, "t{iiN}",
+       if ( vlvinfop->ldvlv_attrvalue == NULL ) {
+               tag = ber_printf( ber, "t{iiN}",

                        LDAP_VLVBYINDEX_IDENTIFIER,
                        vlvinfop->ldvlv_offset,
                        LDAP_VLVBYINDEX_IDENTIFIER,
                        vlvinfop->ldvlv_offset,

-                       vlvinfop->ldvlv_count);
-               if( tag == LBER_ERROR ) goto exit;
+                       vlvinfop->ldvlv_count );
+               if ( tag == LBER_ERROR ) {
+                       goto error_return;
+               }

 
        } else {
 
        } else {

-               tag = ber_printf(ber, "tO",
+               tag = ber_printf( ber, "tO",

                        LDAP_VLVBYVALUE_IDENTIFIER,
                        LDAP_VLVBYVALUE_IDENTIFIER,

-                       vlvinfop->ldvlv_attrvalue);
-               if( tag == LBER_ERROR ) goto exit;
+                       vlvinfop->ldvlv_attrvalue );
+               if ( tag == LBER_ERROR ) {
+                       goto error_return;
+               }

        }
 
        }
 

-       if (vlvinfop->ldvlv_context) {
-               tag = ber_printf(ber, "tO",
+       if ( vlvinfop->ldvlv_context ) {
+               tag = ber_printf( ber, "tO",

                        LDAP_VLVCONTEXT_IDENTIFIER,
                        LDAP_VLVCONTEXT_IDENTIFIER,

-                       vlvinfop->ldvlv_context);
-               if( tag == LBER_ERROR ) goto exit;
+                       vlvinfop->ldvlv_context );
+               if ( tag == LBER_ERROR ) {
+                       goto error_return;
+               }

        }
 
        }
 

-       tag = ber_printf(ber, /*{*/ "N}"); 
-       if( tag == LBER_ERROR ) goto exit;
+       tag = ber_printf( ber, /*{*/ "N}" ); 
+       if ( tag == LBER_ERROR ) {
+               goto error_return;
+       }

 
 

-       ld->ld_errno = ldap_create_control(     LDAP_CONTROL_VLVREQUEST,
-               ber, 1, ctrlp);
+       if ( ber_flatten2( ber, value, 1 ) == -1 ) {
+               ld->ld_errno = LDAP_NO_MEMORY;
+       }

 
 

-       ber_free(ber, 1);
-       return(ld->ld_errno);
+       if ( 0 ) {
+error_return:;
+               ld->ld_errno = LDAP_ENCODING_ERROR;
+       }

 
 

-exit:
-       ber_free(ber, 1);
-       ld->ld_errno = LDAP_ENCODING_ERROR;
-       return(ld->ld_errno);
+       if ( ber != NULL ) {
+               ber_free( ber, 1 );
+       }
+
+       return ld->ld_errno;
+}
+
+/*---
+   ldap_create_vlv_control
+   
+   Create and encode the Virtual List View control.
+
+   ld        (IN)  An LDAP session handle.
+   
+   vlvinfop  (IN)  The address of an LDAPVLVInfo structure whose contents 
+                                  are used to construct the value of the control
+                                  that is created.
+   
+   ctrlp     (OUT) A result parameter that will be assigned the address
+                                  of an LDAPControl structure that contains the 
+                                  VirtualListViewRequest control created by this function.
+                                  The memory occupied by the LDAPControl structure
+                                  SHOULD be freed when it is no longer in use by
+                                  calling ldap_control_free().
+                                         
+   
+   Ber encoding
+   
+   VirtualListViewRequest ::= SEQUENCE {
+               beforeCount  INTEGER (0 .. maxInt),
+               afterCount   INTEGER (0 .. maxInt),
+               CHOICE {
+                               byoffset [0] SEQUENCE, {
+                               offset        INTEGER (0 .. maxInt),
+                               contentCount  INTEGER (0 .. maxInt) }
+                               [1] greaterThanOrEqual assertionValue }
+               contextID     OCTET STRING OPTIONAL }
+         
+   
+   Note:  The first time the VLV control is created, the ldvlv_context
+                 field of the LDAPVLVInfo structure should be set to NULL.
+                 The context obtained from calling ldap_parse_vlv_control()
+                 should be used as the context in the next ldap_create_vlv_control
+                 call.
+
+ ---*/
+
+int
+ldap_create_vlv_control(
+       LDAP *ld,
+       LDAPVLVInfo *vlvinfop,
+       LDAPControl **ctrlp )
+{
+       struct berval   value;
+
+       if ( ctrlp == NULL ) {
+               ld->ld_errno = LDAP_PARAM_ERROR;
+               return ld->ld_errno;
+       }
+
+       ld->ld_errno = ldap_create_vlv_control_value( ld, vlvinfop, &value );
+       if ( ld->ld_errno == LDAP_SUCCESS ) {
+
+               ld->ld_errno = ldap_control_create( LDAP_CONTROL_VLVREQUEST,
+                       1, &value, 0, ctrlp );
+               if ( ld->ld_errno != LDAP_SUCCESS ) {
+                       LDAP_FREE( value.bv_val );
+               }
+       }
+
+       return ld->ld_errno;

 }
 
 
 /*---
 }
 
 
 /*---

-   ldap_parse_vlv_control
+   ldap_parse_vlvresponse_control

    
    Decode the Virtual List View control return information.
 
    ld           (IN)   An LDAP session handle.
    
    
    Decode the Virtual List View control return information.
 
    ld           (IN)   An LDAP session handle.
    

-   ctrls        (IN)   The address of a NULL-terminated array of 
-                                          LDAPControl structures, typically obtained 
-                                          by a call to ldap_parse_result().
+   ctrl         (IN)   The address of the LDAPControl structure.

    
    target_posp (OUT)  This result parameter is filled in with the list
                                           index of the target entry.  If this parameter is
    
    target_posp (OUT)  This result parameter is filled in with the list
                                           index of the target entry.  If this parameter is


@@ -203,18 +286,16 @@ exit:
 ---*/
 
 int
 ---*/
 
 int

-ldap_parse_vlv_control(
-       LDAP           *ld,
-       LDAPControl    **ctrls,
-       unsigned long  *target_posp,
-       unsigned long  *list_countp,
+ldap_parse_vlvresponse_control(
+       LDAP *ld,
+       LDAPControl *ctrl,
+       ber_int_t *target_posp,
+       ber_int_t *list_countp,

        struct berval  **contextp,
        struct berval  **contextp,

-       int            *errcodep )
+       ber_int_t *errcodep )

 {
        BerElement  *ber;
 {
        BerElement  *ber;

-       LDAPControl *pControl;
-       int i;
-       unsigned long pos, count, err;
+       ber_int_t pos, count, err;

        ber_tag_t tag, berTag;
        ber_len_t berLen;
 
        ber_tag_t tag, berTag;
        ber_len_t berLen;
 


@@ -225,25 +306,19 @@ ldap_parse_vlv_control(
                *contextp = NULL;        /* Make sure we return a NULL if error occurs. */
        }
 
                *contextp = NULL;        /* Make sure we return a NULL if error occurs. */
        }
 

-       if (ctrls == NULL) {
-               ld->ld_errno = LDAP_CONTROL_NOT_FOUND;
+       if (ctrl == NULL) {
+               ld->ld_errno = LDAP_PARAM_ERROR;

                return(ld->ld_errno);
        }
 
                return(ld->ld_errno);
        }
 

-       /* Search the list of control responses for a VLV control. */
-       for (i=0; ctrls[i]; i++) {
-               pControl = ctrls[i];
-               if (!strcmp(LDAP_CONTROL_VLVRESPONSE, pControl->ldctl_oid))
-                       goto foundVLVControl;
+       if (strcmp(LDAP_CONTROL_VLVRESPONSE, ctrl->ldctl_oid) != 0) {
+               /* Not VLV Response control */
+               ld->ld_errno = LDAP_CONTROL_NOT_FOUND;
+               return(ld->ld_errno);

        }
 
        }
 

-       /* No sort control was found. */
-       ld->ld_errno = LDAP_CONTROL_NOT_FOUND;
-       return(ld->ld_errno);
-
-foundVLVControl:

        /* Create a BerElement from the berval returned in the control. */
        /* Create a BerElement from the berval returned in the control. */

-       ber = ber_init(&pControl->ldctl_value);
+       ber = ber_init(&ctrl->ldctl_value);

 
        if (ber == NULL) {
                ld->ld_errno = LDAP_NO_MEMORY;
 
        if (ber == NULL) {
                ld->ld_errno = LDAP_NO_MEMORY;


@@ -277,15 +352,9 @@ foundVLVControl:
        ber_free(ber, 1);
 
        /* Return data to the caller for items that were requested. */
        ber_free(ber, 1);
 
        /* Return data to the caller for items that were requested. */

-       if (target_posp) {
-               *target_posp = pos;
-       }
-       if (list_countp) {
-               *list_countp = count;
-       }
-       if (errcodep) {
-               *errcodep = err;
-       }
+       if (target_posp) *target_posp = pos;
+       if (list_countp) *list_countp = count;
+       if (errcodep) *errcodep = err;

 
        ld->ld_errno = LDAP_SUCCESS;
        return(ld->ld_errno);
 
        ld->ld_errno = LDAP_SUCCESS;
        return(ld->ld_errno);