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added wxListView class: this is going to be a wxListCtrl with human (inter)face
[wxWidgets.git] / src / iodbc / info.c
diff --git a/src/iodbc/info.c b/src/iodbc/info.c
index 34bfdeec6418d656df148896101086d6bb19f54b..f5efc7e3f7b97e40d194b486bb7d80b1c0f60c1b 100644 (file)
--- a/src/iodbc/info.c
+++ b/src/iodbc/info.c
@@ -1,392 +1,521 @@
-/** Information functions
-
-    Copyright (C) 1995 by Ke Jin <kejin@empress.com>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-**/
-
-#include       <../iodbc/iodbc.h>
-
-#include       <../iodbc/isql.h>
-#include       <../iodbc/isqlext.h>
-
-#include        <../iodbc/dlproc.h>
-
-#include       <../iodbc/herr.h>
-#include       <../iodbc/henv.h>
-#include       <../iodbc/hdbc.h>
-#include       <../iodbc/hstmt.h>
-
-#include       <../iodbc/itrace.h>
-
-#include        <strings.h>
-#include        <stdio.h>
-
-RETCODE SQL_API SQLDataSources(
-                        HENV            henv,
-                        UWORD           fDir,
-                        UCHAR  FAR*     szDSN,
-                        SWORD           cbDSNMax,
-                        SWORD  FAR*     pcbDSN,
-                        UCHAR  FAR*     szDesc,
-                        SWORD           cbDescMax,
-                        SWORD  FAR*     pcbDesc )
+/*
+ *  info.c
+ *
+ *  $Id$
+ *
+ *  Information functions
+ *
+ *  The iODBC driver manager.
+ *  
+ *  Copyright (C) 1995 by Ke Jin <kejin@empress.com> 
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include       "config.h"
+
+#include       "isql.h"
+#include       "isqlext.h"
+
+#include        "dlproc.h"
+
+#include       "herr.h"
+#include       "henv.h"
+#include       "hdbc.h"
+#include       "hstmt.h"
+
+#include       "itrace.h"
+
+#include       <stdio.h>
+#include       <ctype.h>
+
+#define SECT1                  "ODBC Data Sources"
+#define SECT2                  "Default"
+#define MAX_ENTRIES            1024
+
+extern char * _iodbcdm_getinifile (char *buf, int size);
+extern char * _iodbcdm_getkeyvalbydsn (char *dsn, int dsnlen, char *keywd, char *value, int size);
+
+static int 
+stricmp (const char *s1, const char *s2)
 {
 {
-        GENV_t FAR*     genv    = (GENV_t FAR*)henv;
-
-        if( henv == SQL_NULL_HENV )
-        {
-                return SQL_INVALID_HANDLE;
-        }
-
-        /* check argument */
-        if( cbDSNMax < 0 || cbDescMax < 0 )
-        {
-                PUSHSQLERR ( genv->herr, en_S1090 );
-
-                return SQL_ERROR;
-        }
+  int cmp;
+
+  while (*s1)
+    {
+      if ((cmp = toupper (*s1) - toupper (*s2)) != 0)
+       return cmp;
+      s1++;
+      s2++;
+    }
+  return (*s2) ? -1 : 0;
+}
 
 
-        if( fDir != SQL_FETCH_FIRST
-         && fDir != SQL_FETCH_NEXT )
-        {
-                PUSHSQLERR ( genv->herr, en_S1103 );
+static int 
+SectSorter (const void *p1, const void *p2)
+{
+  char **s1 = (char **) p1;
+  char **s2 = (char **) p2;
 
 
-                return SQL_ERROR;
-        }
+  return stricmp (*s1, *s2);
+}
 
 
-        /*************************/
 
 
-        return SQL_SUCCESS;
+RETCODE SQL_API 
+SQLDataSources (
+    HENV henv,
+    UWORD fDir,
+    UCHAR FAR * szDSN,
+    SWORD cbDSNMax,
+    SWORD FAR * pcbDSN,
+    UCHAR FAR * szDesc,
+    SWORD cbDescMax,
+    SWORD FAR * pcbDesc)
+{
+  GENV_t FAR *genv = (GENV_t FAR *) henv;
+  char *path;
+  char buf[1024];
+  FILE *fp;
+  int i;
+  static int cur_entry = -1;
+  static int num_entries = 0;
+  static char **sect = NULL;
+
+  if (henv == SQL_NULL_HENV)
+    {
+      return SQL_INVALID_HANDLE;
+    }
+  /* check argument */
+  if (cbDSNMax < 0 || cbDescMax < 0)
+    {
+      PUSHSQLERR (genv->herr, en_S1090);
+
+      return SQL_ERROR;
+    }
+  if (fDir != SQL_FETCH_FIRST
+      && fDir != SQL_FETCH_NEXT)
+    {
+      PUSHSQLERR (genv->herr, en_S1103);
+
+      return SQL_ERROR;
+    }
+  if (cur_entry < 0 || fDir == SQL_FETCH_FIRST)
+    {
+      cur_entry = 0;
+      num_entries = 0;
+
+
+      /* 
+       *  Open the odbc.ini file
+       */
+      path = (char *) _iodbcdm_getinifile (buf, sizeof (buf));
+      if ((fp = fopen (path, "r")) == NULL)
+       {
+         return SQL_NO_DATA_FOUND;
+       }
+      /*
+       *  Free old section list
+       */
+      if (sect)
+       {
+         for (i = 0; i < MAX_ENTRIES; i++)
+           if (sect[i])
+             free (sect[i]);
+         free (sect);
+       }
+      if ((sect = (char **) calloc (MAX_ENTRIES, sizeof (char *))) == NULL)
+       {
+         PUSHSQLERR (genv->herr, en_S1011);
+
+         return SQL_ERROR;
+       }
+      /*
+       *  Build a dynamic list of sections
+       */
+      while (1)
+       {
+         char *str, *p;
+
+         str = fgets (buf, sizeof (buf), fp);
+
+         if (str == NULL)
+           break;
+
+         if (*str == '[')
+           {
+             str++;
+             for (p = str; *p; p++)
+               if (*p == ']')
+                 *p = '\0';
+
+             if (!strcmp (str, SECT1))
+               continue;
+             if (!strcmp (str, SECT2))
+               continue;
+
+             /*
+              *  Add this section to the comma separated list
+              */
+             if (num_entries >= MAX_ENTRIES)
+               break;          /* Skip the rest */
+
+             sect[num_entries++] = (char *) strdup (str);
+           }
+       }
+
+      /*
+       *  Sort all entries so we can present a nice list
+       */
+      if (num_entries > 1)
+       qsort (sect, num_entries, sizeof (char *), SectSorter);
+    }
+  /*
+   *  Try to get to the next item
+   */
+  if (cur_entry >= num_entries)
+    {
+      cur_entry = 0;           /* Next time, start all over again */
+      return SQL_NO_DATA_FOUND;
+    }
+  /*
+   *  Copy DSN information 
+   */
+  STRNCPY (szDSN, sect[cur_entry], cbDSNMax);
+/*
+glt???  pcbDSN = strlen(szDSN);
+*/
+  /*
+   *  And find the description that goes with this entry
+   */
+  _iodbcdm_getkeyvalbydsn (sect[cur_entry], strlen (sect[cur_entry]),
+      "Description", (char*) szDesc, cbDescMax);
+/*
+glt???  pcbDesc = strlen(szDesc);
+*/
+  /*
+   *  Next record
+   */
+  cur_entry++;
+
+  return SQL_SUCCESS;
 }
 
 }
 
-RETCODE SQL_API SQLDrivers(
-                        HENV            henv,
-                        UWORD           fDir,
-                        UCHAR  FAR*     szDrvDesc,
-                        SWORD           cbDrvDescMax,
-                        SWORD  FAR*     pcbDrvDesc,
-                        UCHAR  FAR*     szDrvAttr,
-                        SWORD           cbDrvAttrMax,
-                        SWORD  FAR*     pcbDrvAttr )
+
+RETCODE SQL_API 
+SQLDrivers (
+    HENV henv,
+    UWORD fDir,
+    UCHAR FAR * szDrvDesc,
+    SWORD cbDrvDescMax,
+    SWORD FAR * pcbDrvDesc,
+    UCHAR FAR * szDrvAttr,
+    SWORD cbDrvAttrMax,
+    SWORD FAR * pcbDrvAttr)
 {
 {
-        GENV_t FAR*     genv    = (GENV_t FAR*)henv;
+  GENV_t FAR *genv = (GENV_t FAR *) henv;
 
 
-        if( henv == SQL_NULL_HENV )
-        {
-                return SQL_INVALID_HANDLE;
-        }
+  if (henv == SQL_NULL_HENV)
+    {
+      return SQL_INVALID_HANDLE;
+    }
 
 
-        if( cbDrvDescMax <  0
-         || cbDrvAttrMax <  0
-         || cbDrvAttrMax == 1 )
-        {
-                PUSHSQLERR ( genv->herr, en_S1090 );
+  if (cbDrvDescMax < 0 || cbDrvAttrMax < 0 || cbDrvAttrMax == 1)
+    {
+      PUSHSQLERR (genv->herr, en_S1090);
 
 
-                return SQL_ERROR;
-        }
+      return SQL_ERROR;
+    }
 
 
-        if( fDir != SQL_FETCH_FIRST
-         || fDir != SQL_FETCH_NEXT )
-        {
-                PUSHSQLERR ( genv->herr, en_S1103 );
+  if (fDir != SQL_FETCH_FIRST || fDir != SQL_FETCH_NEXT)
+    {
+      PUSHSQLERR (genv->herr, en_S1103);
 
 
-                return SQL_ERROR;
-        }
+      return SQL_ERROR;
+    }
 
 
-        /*********************/
-        return SQL_SUCCESS;
+/*********************/
+  return SQL_NO_DATA_FOUND;
 }
 
 
 }
 
 
-RETCODE SQL_API SQLGetInfo(
-                        HDBC            hdbc,
-                        UWORD           fInfoType,
-                        PTR             rgbInfoValue,
-                        SWORD           cbInfoValueMax,
-                        SWORD FAR*      pcbInfoValue )
+RETCODE SQL_API 
+SQLGetInfo (
+    HDBC hdbc,
+    UWORD fInfoType,
+    PTR rgbInfoValue,
+    SWORD cbInfoValueMax,
+    SWORD FAR * pcbInfoValue)
 {
 {
-        DBC_t  FAR*     pdbc    = (DBC_t FAR*)hdbc;
-        ENV_t  FAR*     penv;
-        STMT_t FAR*     pstmt   = NULL;
-        STMT_t FAR*     tpstmt;
-        HPROC           hproc;
-        RETCODE         retcode = SQL_SUCCESS;
-
-        DWORD           dword;
-        int             size = 0, len = 0;
-        char            buf[16] = { '\0' };
-
-        if( hdbc == SQL_NULL_HDBC
-         || pdbc->henv == SQL_NULL_HENV )
-        {
-                return SQL_INVALID_HANDLE;
-        }
-
-        if( cbInfoValueMax < 0 )
-        {
-                PUSHSQLERR ( pdbc->herr, en_S1090 );
-
-                return SQL_ERROR;
-        }
-
-        if( /* fInfoType < SQL_INFO_FIRST || */
-            ( fInfoType > SQL_INFO_LAST
-           && fInfoType < SQL_INFO_DRIVER_START ) )
-        {
-                PUSHSQLERR ( pdbc->herr, en_S1096 );
-
-                return SQL_ERROR;
-        }
-
-        if( fInfoType == SQL_ODBC_VER )
-        {
-                sprintf( buf, "%02d.%02d",
-                        (ODBCVER)>>8, 0x00FF&(ODBCVER) );
-
-
-                if( rgbInfoValue != NULL
-                 && cbInfoValueMax > 0 )
-                {
-                        len = STRLEN( buf );
-
-                        if( len < cbInfoValueMax - 1 )
-                        {
-                                len = cbInfoValueMax - 1;
-                                PUSHSQLERR ( pdbc->herr, en_01004 );
-
-                                retcode = SQL_SUCCESS_WITH_INFO;
-                        }
-
-                        STRNCPY( rgbInfoValue, buf, len );
-                        ((char FAR*)rgbInfoValue)[len] = '\0';
-                }
-
-                if( pcbInfoValue != NULL )
-                {
-                        *pcbInfoValue = (SWORD)len;
-                }
-
-                return retcode;
-        }
-
-        if( pdbc->state == en_dbc_allocated
-         || pdbc->state == en_dbc_needdata )
-        {
-                PUSHSQLERR ( pdbc->herr, en_08003 );
-
-                return SQL_ERROR;
-        }
-
-        switch( fInfoType )
-        {
-                case SQL_DRIVER_HDBC:
-                        dword = (DWORD)(pdbc->dhdbc);
-                        size  = sizeof(dword);
-                        break;
-
-                case SQL_DRIVER_HENV:
-                        penv  = (ENV_t FAR*)(pdbc->henv);
-                        dword = (DWORD)(penv->dhenv);
-                        size  = sizeof(dword);
-                        break;
-
-                case SQL_DRIVER_HLIB:
-                        penv  = (ENV_t FAR*)(pdbc->henv);
-                        dword = (DWORD)(penv->hdll);
-                        size  = sizeof(dword);
-                        break;
-
-                case SQL_DRIVER_HSTMT:
-                        if( rgbInfoValue != NULL )
-                        {
-                                pstmt = *((STMT_t FAR**)rgbInfoValue);
-                        }
-
-                        for( tpstmt  = (STMT_t FAR*)(pdbc->hstmt);
-                             tpstmt != NULL;
-                             tpstmt  = tpstmt->next )
-                        {
-                                if( tpstmt == pstmt )
-                                {
-                                        break;
-                                }
-                        }
-
-                        if( tpstmt == NULL )
-                        {
-                                PUSHSQLERR ( pdbc->herr, en_S1009 );
-
-                                return SQL_ERROR;
-                        }
-
-                        dword = (DWORD)(pstmt->dhstmt);
-                        size  = sizeof(dword);
-                        break;
-
-                default:
-                        break;
-        }
-
-        if( size )
-        {
-                if( rgbInfoValue != NULL )
-                {
-                        *((DWORD*)rgbInfoValue) = dword;
-                }
-
-                if( pcbInfoValue != NULL )
-                {
-                        *(pcbInfoValue) = (SWORD)size;
-                }
-
-                return SQL_SUCCESS;
-        }
-
-        hproc = _iodbcdm_getproc( hdbc, en_GetInfo );
-
-        if( hproc == SQL_NULL_HPROC )
-        {
-                PUSHSQLERR ( pdbc->herr, en_IM001 );
-
-                return SQL_ERROR;
-        }
-
-        CALL_DRIVER ( hdbc, retcode, hproc, en_GetInfo, (
-                        pdbc->dhdbc,
-                        fInfoType,
-                        rgbInfoValue,
-                        cbInfoValueMax,
-                        pcbInfoValue ) )
-
-#if 0
-        retcode = hproc(pdbc->dhdbc,
-                        fInfoType,
-                        rgbInfoValue,
-                        cbInfoValueMax,
-                        pcbInfoValue );
-#endif
-
-        if( retcode == SQL_ERROR
-         && fInfoType == SQL_DRIVER_ODBC_VER )
-        {
-                STRCPY( buf, "01.00" );
-
-                if( rgbInfoValue != NULL
-                 && cbInfoValueMax > 0 )
-                {
-                        len = STRLEN( buf );
-
-                        if( len < cbInfoValueMax - 1 )
-                        {
-                                len = cbInfoValueMax - 1;
-                                PUSHSQLERR ( pdbc->herr, en_01004 );
-                        }
-
-                        STRNCPY( rgbInfoValue, buf, len );
-                        ((char FAR*)rgbInfoValue)[len] = '\0';
-                }
-
-                if( pcbInfoValue != NULL )
-                {
-                        *pcbInfoValue = (SWORD)len;
-                }
-
-                /* what should we return in this case ???? */
-        }
-
-        return retcode;
+  DBC_t FAR *pdbc = (DBC_t FAR *) hdbc;
+  ENV_t FAR *penv;
+  STMT_t FAR *pstmt = NULL;
+  STMT_t FAR *tpstmt;
+  HPROC hproc;
+  RETCODE retcode = SQL_SUCCESS;
+
+  DWORD dword;
+  int size = 0, len = 0;
+  char buf[16] = {'\0'};
+
+  if (hdbc == SQL_NULL_HDBC || pdbc->henv == SQL_NULL_HENV)
+    {
+      return SQL_INVALID_HANDLE;
+    }
+
+  if (cbInfoValueMax < 0)
+    {
+      PUSHSQLERR (pdbc->herr, en_S1090);
+
+      return SQL_ERROR;
+    }
+
+  if (                         /* fInfoType < SQL_INFO_FIRST || */
+      (fInfoType > SQL_INFO_LAST
+         && fInfoType < SQL_INFO_DRIVER_START))
+    {
+      PUSHSQLERR (pdbc->herr, en_S1096);
+
+      return SQL_ERROR;
+    }
+
+  if (fInfoType == SQL_ODBC_VER)
+    {
+      sprintf (buf, "%02d.%02d",
+         (ODBCVER) >> 8, 0x00FF & (ODBCVER));
+
+
+      if (rgbInfoValue != NULL
+         && cbInfoValueMax > 0)
+       {
+         len = STRLEN (buf);
+
+         if (len < cbInfoValueMax - 1)
+           {
+             len = cbInfoValueMax - 1;
+             PUSHSQLERR (pdbc->herr, en_01004);
+
+             retcode = SQL_SUCCESS_WITH_INFO;
+           }
+
+         STRNCPY (rgbInfoValue, buf, len);
+         ((char FAR *) rgbInfoValue)[len] = '\0';
+       }
+
+      if (pcbInfoValue != NULL)
+       {
+         *pcbInfoValue = (SWORD) len;
+       }
+
+      return retcode;
+    }
+
+  if (pdbc->state == en_dbc_allocated || pdbc->state == en_dbc_needdata)
+    {
+      PUSHSQLERR (pdbc->herr, en_08003);
+
+      return SQL_ERROR;
+    }
+
+  switch (fInfoType)
+     {
+     case SQL_DRIVER_HDBC:
+       dword = (DWORD) (pdbc->dhdbc);
+       size = sizeof (dword);
+       break;
+
+     case SQL_DRIVER_HENV:
+       penv = (ENV_t FAR *) (pdbc->henv);
+       dword = (DWORD) (penv->dhenv);
+       size = sizeof (dword);
+       break;
+
+     case SQL_DRIVER_HLIB:
+       penv = (ENV_t FAR *) (pdbc->henv);
+       dword = (DWORD) (penv->hdll);
+       size = sizeof (dword);
+       break;
+
+     case SQL_DRIVER_HSTMT:
+       if (rgbInfoValue != NULL)
+        {
+          pstmt = *((STMT_t FAR **) rgbInfoValue);
+        }
+
+       for (tpstmt = (STMT_t FAR *) (pdbc->hstmt);
+          tpstmt != NULL;
+          tpstmt = tpstmt->next)
+        {
+          if (tpstmt == pstmt)
+            {
+              break;
+            }
+        }
+
+       if (tpstmt == NULL)
+        {
+          PUSHSQLERR (pdbc->herr, en_S1009);
+
+          return SQL_ERROR;
+        }
+
+       dword = (DWORD) (pstmt->dhstmt);
+       size = sizeof (dword);
+       break;
+
+     default:
+       break;
+     }
+
+  if (size)
+    {
+      if (rgbInfoValue != NULL)
+       {
+         *((DWORD *) rgbInfoValue) = dword;
+       }
+
+      if (pcbInfoValue != NULL)
+       {
+         *(pcbInfoValue) = (SWORD) size;
+       }
+
+      return SQL_SUCCESS;
+    }
+
+  hproc = _iodbcdm_getproc (hdbc, en_GetInfo);
+
+  if (hproc == SQL_NULL_HPROC)
+    {
+      PUSHSQLERR (pdbc->herr, en_IM001);
+
+      return SQL_ERROR;
+    }
+
+  CALL_DRIVER (hdbc, retcode, hproc, en_GetInfo,
+    (pdbc->dhdbc, fInfoType, rgbInfoValue, cbInfoValueMax, pcbInfoValue))
+
+  if (retcode == SQL_ERROR
+      && fInfoType == SQL_DRIVER_ODBC_VER)
+    {
+      STRCPY (buf, "01.00");
+
+      if (rgbInfoValue != NULL
+         && cbInfoValueMax > 0)
+       {
+         len = STRLEN (buf);
+
+         if (len < cbInfoValueMax - 1)
+           {
+             len = cbInfoValueMax - 1;
+             PUSHSQLERR (pdbc->herr, en_01004);
+           }
+
+         STRNCPY (rgbInfoValue, buf, len);
+         ((char FAR *) rgbInfoValue)[len] = '\0';
+       }
+
+      if (pcbInfoValue != NULL)
+       {
+         *pcbInfoValue = (SWORD) len;
+       }
+
+      /* what should we return in this case ???? */
+    }
+
+  return retcode;
 }
 
 }
 
-RETCODE SQL_API SQLGetFunctions(
-                        HDBC            hdbc,
-                        UWORD           fFunc,
-                        UWORD FAR*      pfExists )
+
+RETCODE SQL_API 
+SQLGetFunctions (
+    HDBC hdbc,
+    UWORD fFunc,
+    UWORD FAR * pfExists)
 {
 {
-        DBC_t FAR*      pdbc    = (DBC_t FAR*)hdbc;
-        HPROC           hproc;
-        RETCODE         retcode;
-
-        if( hdbc == SQL_NULL_HDBC )
-        {
-                return SQL_INVALID_HANDLE;
-        }
-
-        if( fFunc > SQL_EXT_API_LAST )
-        {
-                PUSHSQLERR ( pdbc->herr, en_S1095 );
-
-                return SQL_ERROR;
-        }
-
-        if( pdbc->state == en_dbc_allocated
-         || pdbc->state == en_dbc_needdata )
-        {
-                PUSHSQLERR ( pdbc->herr, en_S1010 );
-
-                return SQL_ERROR;
-        }
-
-        if( pfExists == NULL )
-        {
-                return SQL_SUCCESS;
-        }
-
-        hproc = _iodbcdm_getproc( hdbc, en_GetFunctions );
-
-        if( hproc != SQL_NULL_HPROC )
-        {
-                CALL_DRIVER ( hdbc, retcode, hproc, en_GetFunctions, (
-                                pdbc->dhdbc, fFunc, pfExists ) )
-
-#if 0
-                retcode = hproc( pdbc->dhdbc, fFunc, pfExists );
-#endif
-                return retcode;
-        }
-
-        if( fFunc == SQL_API_SQLSETPARAM )
-        {
-                fFunc = SQL_API_SQLBINDPARAMETER;
-        }
-
-        if( fFunc != SQL_API_ALL_FUNCTIONS )
-        {
-                hproc = _iodbcdm_getproc( hdbc, fFunc );
-
-                if( hproc == SQL_NULL_HPROC )
-                {
-                        *pfExists = (UWORD)0;
-                }
-                else
-                {
-                        *pfExists = (UWORD)1;
-                }
-
-                return SQL_SUCCESS;
-        }
-
-        for( fFunc=0 ; fFunc < 100; fFunc ++ )
-        {
-                hproc = _iodbcdm_getproc( hdbc, fFunc );
-
-                if( hproc == SQL_NULL_HPROC )
-                {
-                        pfExists[fFunc] = (UWORD)0;
-                }
-                else
-                {
-                        pfExists[fFunc] = (UWORD)1;
-                }
-        }
-
-        return SQL_SUCCESS;
+  DBC_t FAR *pdbc = (DBC_t FAR *) hdbc;
+  HPROC hproc;
+  RETCODE retcode;
+
+  if (hdbc == SQL_NULL_HDBC)
+    {
+      return SQL_INVALID_HANDLE;
+    }
+
+  if (fFunc > SQL_EXT_API_LAST)
+    {
+      PUSHSQLERR (pdbc->herr, en_S1095);
+
+      return SQL_ERROR;
+    }
+
+  if (pdbc->state == en_dbc_allocated
+      || pdbc->state == en_dbc_needdata)
+    {
+      PUSHSQLERR (pdbc->herr, en_S1010);
+
+      return SQL_ERROR;
+    }
+
+  if (pfExists == NULL)
+    {
+      return SQL_SUCCESS;
+    }
+
+  hproc = _iodbcdm_getproc (hdbc, en_GetFunctions);
+
+  if (hproc != SQL_NULL_HPROC)
+    {
+      CALL_DRIVER (hdbc, retcode, hproc, en_GetFunctions,
+       (pdbc->dhdbc, fFunc, pfExists))
+
+      return retcode;
+    }
+
+  if (fFunc == SQL_API_SQLSETPARAM)
+    {
+      fFunc = SQL_API_SQLBINDPARAMETER;
+    }
+
+  if (fFunc != SQL_API_ALL_FUNCTIONS)
+    {
+      hproc = _iodbcdm_getproc (hdbc, fFunc);
+
+      if (hproc == SQL_NULL_HPROC)
+       {
+         *pfExists = (UWORD) 0;
+       }
+      else
+       {
+         *pfExists = (UWORD) 1;
+       }
+
+      return SQL_SUCCESS;
+    }
+
+  for (fFunc = 0; fFunc < 100; fFunc++)
+    {
+      hproc = _iodbcdm_getproc (hdbc, fFunc);
+
+      if (hproc == SQL_NULL_HPROC)
+       {
+         pfExists[fFunc] = (UWORD) 0;
+       }
+      else
+       {
+         pfExists[fFunc] = (UWORD) 1;
+       }
+    }
+
+  return SQL_SUCCESS;
 }
 }
wxWidgets (Impactor)