{ Copyright 2000-2005 The Apache Software Foundation or its licensors, as
 * applicable.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 }

{
 * @file apr_user.h
 * @brief APR User ID Services 
 }

{#include "apr.h"
#include "apr_errno.h"
#include "apr_pools.h"}

{
 * @defgroup apr_user User and Group ID Services
 * @ingroup APR 
 }

{
 * Structure for determining user ownership.
 }
type
{$ifdef WINDOWS}
  apr_uid_t = PSID;
{$else}
  apr_uid_t = uid_t;
{$endif}

  Papr_uid_t = ^apr_uid_t;

{
 * Structure for determining group ownership.
 }
{$ifdef WINDOWS}
  apr_gid_t = PSID;
{$else}
  apr_gid_t = gid_t;
{$endif}

  Papr_gid_t = ^apr_gid_t;

{$define APR_HAS_USER}

{$ifdef APR_HAS_USER}

{
 * Get the userid (and groupid) of the calling process
 * @param userid   Returns the user id
 * @param groupid  Returns the user's group id
 * @param p The pool from which to allocate working space
 * @remark This function is available only if APR_HAS_USER is defined.
 }
function apr_uid_current(userid: Papr_uid_t; groupid: Papr_gid_t;
 p: Papr_pool_t): apr_status_t;
 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
 external LibAPR name LibNamePrefix + 'apr_uid_current' + LibSuff12;

{
 * Get the user name for a specified userid
 * @param username Pointer to new string containing user name (on output)
 * @param userid The userid
 * @param p The pool from which to allocate the string
 * @remark This function is available only if APR_HAS_USER is defined.
 }
function apr_uid_name_get(username: PPChar; userid: apr_uid_t;
 p: Papr_pool_t): apr_status_t;
 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
 external LibAPR name LibNamePrefix + 'apr_uid_name_get' + LibSuff12;

{
 * Get the userid (and groupid) for the specified username
 * @param userid   Returns the user id
 * @param groupid  Returns the user's group id
 * @param username The username to lookup
 * @param p The pool from which to allocate working space
 * @remark This function is available only if APR_HAS_USER is defined.
 }
function apr_uid_get(userid: Papr_uid_t; groupid: Papr_gid_t;
 const username: PChar; p: Papr_pool_t): apr_status_t;
 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
 external LibAPR name LibNamePrefix + 'apr_uid_get' + LibSuff16;

{
 * Get the home directory for the named user
 * @param dirname Pointer to new string containing directory name (on output)
 * @param username The named user
 * @param p The pool from which to allocate the string
 * @remark This function is available only if APR_HAS_USER is defined.
 }
function apr_uid_homepath_get(dirname: PPChar; const username: PChar;
 p: Papr_pool_t): apr_status_t;
 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
 external LibAPR name LibNamePrefix + 'apr_uid_homepath_get' + LibSuff12;

{
 * Compare two user identifiers for equality.
 * @param left One uid to test
 * @param right Another uid to test
 * @return APR_SUCCESS if the apr_uid_t strutures identify the same user,
 * APR_EMISMATCH if not, APR_BADARG if an apr_uid_t is invalid.
 * @remark This function is available only if APR_HAS_USER is defined.
 }
{$ifdef WINDOWS}
//APR_DECLARE(apr_status_t) apr_uid_compare(apr_uid_t left, apr_uid_t right);

{$else}
//#define apr_uid_compare(left,right) (((left) == (right)) ? APR_SUCCESS : APR_EMISMATCH)
{$endif}

{
 * Get the group name for a specified groupid
 * @param groupname Pointer to new string containing group name (on output)
 * @param groupid The groupid
 * @param p The pool from which to allocate the string
 * @remark This function is available only if APR_HAS_USER is defined.
 }
function apr_gid_name_get(groupname: PPChar; groupid: apr_gid_t;
 p: Papr_pool_t): apr_status_t;
 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
 external LibAPR name LibNamePrefix + 'apr_gid_name_get' + LibSuff12;

{
 * Get the groupid for a specified group name
 * @param groupid Pointer to the group id (on output)
 * @param groupname The group name to look up
 * @param p The pool from which to allocate the string
 * @remark This function is available only if APR_HAS_USER is defined.
 }
function apr_gid_get(groupid: Papr_gid_t; const groupname: PChar;
 p: Papr_pool_t): apr_status_t;
 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
 external LibAPR name LibNamePrefix + 'apr_gid_get' + LibSuff12;

{
 * Compare two group identifiers for equality.
 * @param left One gid to test
 * @param right Another gid to test
 * @return APR_SUCCESS if the apr_gid_t strutures identify the same group,
 * APR_EMISMATCH if not, APR_BADARG if an apr_gid_t is invalid.
 * @remark This function is available only if APR_HAS_USER is defined.
 }
{$ifdef WINDOWS}
//APR_DECLARE(apr_status_t) apr_gid_compare(apr_gid_t left, apr_gid_t right);
{$else}
//#define apr_gid_compare(left,right) (((left) == (right)) ? APR_SUCCESS : APR_EMISMATCH)
{$endif}

{$endif}  { ! APR_HAS_USER }