src/WINNT/afsapplib/al_dynlink.cpp

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 extern "C" {
  11 #include <afs/param.h>
  12 #include <afs/stds.h>
  13 }
  14
  15 #include <WINNT/afsapplib.h>
  16 #include "al_dynlink.h"
  17
  18
  19 /*
  20  * LIBRARIES __________________________________________________________________
  21  *
  22  */
  23
  24 #define cszLIBRARY_UTIL        TEXT("AfsAdminUtil.dll")
  25 #define cszLIBRARY_KAS         TEXT("AfsKasAdmin.dll")
  26 #define cszLIBRARY_CLIENT      TEXT("AfsClientAdmin.dll")
  27
  28
  29 /*
  30  * ADMIN ______________________________________________________________________
  31  *
  32  */
  33
  34 static size_t g_cReqUtilLibrary = 0;
  35 static HINSTANCE g_hiUtilLibrary = NULL;
  36
  37 util_AdminErrorCodeTranslate_t util_AdminErrorCodeTranslateP = NULL;
  38
  39
  40 BOOL OpenUtilLibrary (ULONG *pStatus)
  41 {
  42    BOOL rc = FALSE;
  43    ULONG status = ERROR_DLL_NOT_FOUND;
  44
  45    if ((++g_cReqUtilLibrary) == 1)
  46       {
  47       if ( ((g_hiUtilLibrary = LoadLibrary (cszLIBRARY_UTIL)) == NULL) ||
  48            ((util_AdminErrorCodeTranslateP = (util_AdminErrorCodeTranslate_t)GetProcAddress (g_hiUtilLibrary, "util_AdminErrorCodeTranslate")) == NULL) )
  49          {
  50          status = GetLastError();
  51          CloseUtilLibrary();
  52          }
  53       }
  54    if (g_hiUtilLibrary)
  55       {
  56       rc = TRUE;
  57       }
  58
  59    if (pStatus)
  60       *pStatus = status;
  61    return rc;
  62 }
  63
  64
  65 void CloseUtilLibrary (void)
  66 {
  67    if ((--g_cReqUtilLibrary) == 0)
  68       {
  69       if (g_hiUtilLibrary)
  70          FreeLibrary (g_hiUtilLibrary);
  71       g_hiUtilLibrary = NULL;
  72       }
  73 }
  74
  75
  76 /*
  77  * KAS ________________________________________________________________________
  78  *
  79  */
  80
  81 static size_t g_cReqKasLibrary = 0;
  82 static HINSTANCE g_hiKasLibrary = NULL;
  83
  84 kas_PrincipalGetBegin_t kas_PrincipalGetBeginP = NULL;
  85 kas_PrincipalGetNext_t kas_PrincipalGetNextP = NULL;
  86 kas_PrincipalGetDone_t kas_PrincipalGetDoneP = NULL;
  87 kas_PrincipalGet_t kas_PrincipalGetP = NULL;
  88
  89
  90 BOOL OpenKasLibrary (ULONG *pStatus)
  91 {
  92    BOOL rc = FALSE;
  93    ULONG status = ERROR_DLL_NOT_FOUND;
  94
  95    if ((++g_cReqKasLibrary) == 1)
  96       {
  97       if ( ((g_hiKasLibrary = LoadLibrary (cszLIBRARY_KAS)) == NULL) ||
  98            ((kas_PrincipalGetBeginP = (kas_PrincipalGetBegin_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetBegin")) == NULL) ||
  99            ((kas_PrincipalGetNextP = (kas_PrincipalGetNext_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetNext")) == NULL) ||
 100            ((kas_PrincipalGetDoneP = (kas_PrincipalGetDone_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetDone")) == NULL) ||
 101            ((kas_PrincipalGetP = (kas_PrincipalGet_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGet")) == NULL) )
 102          {
 103          status = GetLastError();
 104          CloseKasLibrary();
 105          }
 106       }
 107    if (g_hiKasLibrary)
 108       {
 109       rc = TRUE;
 110       }
 111
 112    if (pStatus)
 113       *pStatus = status;
 114    return rc;
 115 }
 116
 117
 118 void CloseKasLibrary (void)
 119 {
 120    if ((--g_cReqKasLibrary) == 0)
 121       {
 122       if (g_hiKasLibrary)
 123          FreeLibrary (g_hiKasLibrary);
 124       g_hiKasLibrary = NULL;
 125       }
 126 }
 127
 128
 129 /*
 130  * CLIENT _____________________________________________________________________
 131  *
 132  */
 133
 134 static size_t g_cReqClientLibrary = 0;
 135 static HINSTANCE g_hiClientLibrary = NULL;
 136
 137 typedef int (ADMINAPI *afsclient_Init_t)(afs_status_p st);
 138
 139 afsclient_TokenGetExisting_t afsclient_TokenGetExistingP = NULL;
 140 afsclient_TokenGetNew_t afsclient_TokenGetNewP = NULL;
 141 afsclient_TokenClose_t afsclient_TokenCloseP = NULL;
 142 afsclient_TokenQuery_t afsclient_TokenQueryP = NULL;
 143 afsclient_CellOpen_t afsclient_CellOpenP = NULL;
 144 afsclient_CellClose_t afsclient_CellCloseP = NULL;
 145 afsclient_LocalCellGet_t afsclient_LocalCellGetP = NULL;
 146 afsclient_Init_t afsclient_InitP = NULL;
 147
 148
 149 BOOL OpenClientLibrary (ULONG *pStatus)
 150 {
 151    BOOL rc = FALSE;
 152    ULONG status = ERROR_DLL_NOT_FOUND;
 153
 154    if ((++g_cReqClientLibrary) == 1)
 155       {
 156       if ( ((g_hiClientLibrary = LoadLibrary (cszLIBRARY_CLIENT)) == NULL) ||
 157            ((afsclient_TokenGetExistingP = (afsclient_TokenGetExisting_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenGetExisting")) == NULL) ||
 158            ((afsclient_TokenGetNewP = (afsclient_TokenGetNew_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenGetNew")) == NULL) ||
 159            ((afsclient_TokenCloseP = (afsclient_TokenClose_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenClose")) == NULL) ||
 160            ((afsclient_TokenQueryP = (afsclient_TokenQuery_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenQuery")) == NULL) ||
 161            ((afsclient_CellOpenP = (afsclient_CellOpen_t)GetProcAddress (g_hiClientLibrary, "afsclient_CellOpen")) == NULL) ||
 162            ((afsclient_CellCloseP = (afsclient_CellClose_t)GetProcAddress (g_hiClientLibrary, "afsclient_CellClose")) == NULL) ||
 163            ((afsclient_LocalCellGetP = (afsclient_LocalCellGet_t)GetProcAddress (g_hiClientLibrary, "afsclient_LocalCellGet")) == NULL) ||
 164            ((afsclient_InitP = (afsclient_Init_t)GetProcAddress (g_hiClientLibrary, "afsclient_Init")) == NULL) )
 165          {
 166          status = GetLastError();
 167          CloseClientLibrary();
 168          }
 169       else if (!(*afsclient_InitP)((afs_status_p)&status))
 170          {
 171          CloseClientLibrary();
 172          }
 173       }
 174    if (g_hiClientLibrary)
 175       {
 176       rc = TRUE;
 177       }
 178
 179    if (pStatus)
 180       *pStatus = status;
 181    return rc;
 182 }
 183
 184
 185 void CloseClientLibrary (void)
 186 {
 187    if ((--g_cReqClientLibrary) == 0)
 188       {
 189       if (g_hiClientLibrary)
 190          FreeLibrary (g_hiClientLibrary);
 191       g_hiClientLibrary = NULL;
 192       }
 193 }
 194