/
ODBC.CPP
2759 lines (2369 loc) · 71.5 KB
/
ODBC.CPP
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/*
+==========================================================+
| |
| ODBC extension for Win32 Perl |
| ----------------------------- |
| |
| by Dave Roth <rothd@roth.net> |
| |
| version v970208 |
| |
| Copyright (c) 1996-1997 Dave Roth. All rights reserved. |
| This program is free software; you can redistribute |
| it and/or modify it under the same terms as Perl itself. |
| |
+==========================================================+
based on original code by Dan DeMaggio (dmag@umich.edu)
Use under GNU General Public License or Larry Wall's "Artistic License"
*/
#define __WIN32_ODBC__
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdio.h>
// ODBC Stuff
#include <SQL.H>
#include <SQLEXT.H>
#include <ODBCINST.H>
// Win32 Perl Stuff
#include "EXTERN.h"
#include "perl.h"
#include "XSub.h"
// Win32::ODBC Stuff
#include "ODBCBuild.h"
#include "CResults.hpp"
#include "CMom.hpp"
#include "odbc.h"
#include "constant.h"
#undef __WIN32_ODBC__
extern CMOM *cMom;
/*----------------------- P E R L F U N C T I O N S -------------------*/
XS(XS_WIN32__ODBC_Constant)
{
dXSARGS;
if (items != 2)
{
croak("Usage: Win32::ODBC::Constant(name, arg)\n");
}
{
char* name = (char*)SvPV(ST(0),na);
ST(0) = sv_newmortal();
sv_setiv(ST(0), constant(pPerl, name));
}
XSRETURN(1);
}
/*----------------------- M I S C F U N C T I O N S -------------------*/
/*
Allocate memory for a new connection and set up the structure
*/
ODBC_TYPE *NewODBC(){
ODBC_TYPE *h = 0;
int iResult = 0;
CMom *cmDaughter;
int iTemp;
#ifdef _Debug
if (ghDebug){
DebugConnection("Creating a new ODBC object.", 0);
}
#endif
if (!(cmDaughter = (CMom *) ::cMom->operator[](GetCurrentThreadId()))){
cmDaughter = new CMom(GetCurrentThreadId());
}
if (cmDaughter){
#ifdef _Debug
DEBUG_DUMP("NewODBC: Entering Critical Section gCS")
#endif
EnterCriticalSection(&gCS);
if (! ghEnv){
SQLAllocEnv(&ghEnv);
}
LeaveCriticalSection(&gCS);
#ifdef _Debug
DEBUG_DUMP("NewODBC: Left Critical Section gCS ")
#endif
if (ghEnv){
if (h= new ODBC_TYPE){
if (h->Error = new ODBC_ERROR){
if (cmDaughter->Add((void *)h)){
iResult = 1;
h->szDSN = 0;
h->szCommand = 0;
CleanODBC(h);
// Add these values AFTER cleaning the ODBC Object
h->conn = cmDaughter->operator[]((void *)h);
#ifdef _Debug
DebugConnection("...created ODBC object.", h);
#endif
h->henv = ghEnv;
}
}
if (!iResult){
FreeODBC(h);
delete h;
h = 0;
}
}
}
}
#ifdef _Debug
else{
DebugConnection("...failed with new ODBC object: Could not find or create daughter.", h);
}
if (!h){
DebugConnection("...creation of ODBC object failed.", h);
}
#endif
return h;
}
/*
Clean up an ODBC structure.
*/
ODBC_TYPE *CleanODBC(ODBC_TYPE *h){
h->hstmt = SQL_NULL_HSTMT;
h->henv = SQL_NULL_HENV;
h->hdbc = 0;
h->Results = 0;
h->iMaxBufSize = DEFAULT_DATA_BUF_SIZE;
h->numcols = 0;
h->uStmtCloseType = DEFAULT_STMT_CLOSE_TYPE;
h->iDebug = 0;
h->dNumOfRows = 0;
strcpy(h->szUserDSN, "");
if (h->szDSN){
delete [] h->szDSN;
h->szDSN = 0;
}
if (h->szCommand){
delete [] h->szCommand;
h->szCommand = 0;
}
CleanError(h->Error);
return h;
}
/*
Deallocates memory used for an ODBC structure.
If the master list (ODBCLIST) is passed to this it will do nothing unless
there are no other ODBC structures remaining.
*/
int FreeODBC(ODBC_TYPE *h){
int iResult = 1;
#ifdef _Debug
if (ghDebug){
DebugConnection("FreeODBC has been called.\n", h);
}
#endif
// There is a call in this function to itself if we delete the
// last connection. BECAUASE OF THIS do NOT put a critical section
// in this function lest we reach a deadlock condition.
if (h->Results){
delete h->Results;
h->Results = 0;
}
if (h->hstmt){
// If ghDLL is NULL (process has already detached) then
// forget this (Win32 will purge the memory anyway).
if (ghDLL) SQLFreeStmt(h->hstmt, SQL_DROP);
h->hstmt = SQL_NULL_HSTMT;
}
if (h->hdbc){
h->hdbc->iCount--;
if (! h->hdbc->iCount){
// Disconnect ONLY if you have no parents
// If ghDLL is NULL (process has already detached) then
// forget this (Win32 will purge the memory anyway).
if (ghDLL){
if (h->hdbc->iConnected){
SQLDisconnect(h->hdbc->hdbc);
h->hdbc->hdbc = SQL_NULL_HDBC;
h->hdbc->iConnected = 0;
}
SQLFreeConnect(h->hdbc->hdbc);
}
delete h->hdbc;
}
h->hdbc = 0;
}
if (h->Error){
delete h->Error;
h->Error = 0;
}
h->henv = SQL_NULL_HENV;
if (h->iDebug){
#ifdef _Debug
DebugConnection("Setting Debug Mode off for connection\n\t\t(due to object destuction).", h);
#endif
RemoveDebug(h);
}
#ifdef _Debug
if (ghDebug){
char szBuff[30];
sprintf(szBuff, "FreeODBC was %s.\n", (iResult)? "successful":"unsuccessful");
DebugConnection(szBuff, h);
}
#endif
if (iResult){
CleanODBC(h);
}
return iResult;
}
void AddDebug(ODBC_TYPE *h){
if (! h->iDebug){
if (h->conn){
// Increase the debug flag ONLY if
giDebug++;
}else{
giDebugGlobal = 1;
}
if (! ghDebug){
#if _DEBUG
AllocConsole();
SetConsoleTitle("DEBUG: ODBC.PLL");
ghDebug = GetStdHandle(STD_ERROR_HANDLE);
#endif _DEBUG
}
h->iDebug = 1;
}
}
void RemoveDebug(ODBC_TYPE *h){
if(h->iDebug){
if (h->conn){
giDebug--;
if (giDebug < 1){
giDebug = 0;
}
}else{
// giDebugGlobal = 0;
}
if (!(giDebug + giDebugGlobal)){
#ifdef _Debug
DebugConnection("Closing Debug Output File.", h);
#endif
DEBUG_DUMP("RemoveDebug: Entering Critical Section gDCS")
EnterCriticalSection(&gDCS);
ghDebug = 0;
#if _DEBUG
FreeConsole();
#endif
CloseHandle(ghFile);
ghFile = 0;
if(gszFile){
delete [] gszFile;
gszFile = 0;
}
LeaveCriticalSection(&gDCS);
DEBUG_DUMP("RemoveDebug: Left Critical Section gDCS ")
}
h->iDebug = 0;
}
}
/*
Reset (clean) an ODBC structures error state information
*/
void CleanError(ODBC_ERROR *h){
if (h){
strcpy(h->szError, "");
strcpy((char *)h->szSqlState, "");
strcpy(h->szFunction, "");
strcpy(h->szFunctionLevel, "");
h->ErrNum = 0;
h->EOR = 0;
}
return;
}
/*
Reset an ODBC Stmt. (alloc memory if needed, free it up if needed)
*/
RETCODE ResetStmt(ODBC_TYPE *h){
RETCODE iReturnCode = SQL_SUCCESS;
if (h->uStmtCloseType != SQL_DONT_CLOSE){
// If the SQLFreeStmt() failed, should we reallocate the stmt?
// For now let's just return the error code and skip the reallocation.
if (h->hstmt != SQL_NULL_HSTMT){
iReturnCode = SQLFreeStmt(h->hstmt, h->uStmtCloseType);
if (iReturnCode == SQL_SUCCESS){
// We will need to realloc the hstmt ONLY if we DROPPED it!
if(h->uStmtCloseType == SQL_DROP){
h->hstmt = SQL_NULL_HSTMT;
}
}else{
_NT_ODBC_Error(h, "ResetStmt", "1");
}
}
if (h->hstmt == SQL_NULL_HSTMT){
if ((iReturnCode = SQLAllocStmt(h->hdbc->hdbc, &h->hstmt)) != SQL_SUCCESS){
_NT_ODBC_Error(h, "ResetStmt", "2");
}
}
}
return iReturnCode;
}
/*
Process an ODBC structures error state from the ODBC API.
This is called when an error is encountered via the ODBC API.
*/
void _NT_ODBC_Error(ODBC_TYPE * h, char *szFunction, char *szFunctionLevel){
SDWORD cbErrorMsg;
if(!h){
h = ODBCLIST;
}
strcpy((char *)h->Error->szSqlState, "");
strcpy(h->Error->szError, "");
SQLError(h->henv, h->hdbc->hdbc, h->hstmt, (UCHAR *)h->Error->szSqlState, (long *)&(h->Error->ErrNum), (unsigned char *)h->Error->szError, ODBC_BUFF_SIZE, (short *)&cbErrorMsg);
// Next couple of lines should be NOT needed. If there is no error, then
// we should not have come here in the first place. If, however, there
// is state information that may be relevant (SQL_SUCCESS_WITH_INFO)
if (!h->Error->ErrNum){
h->Error->ErrNum = 911;
}
strcpy(h->Error->szFunction, szFunction);
strcpy(h->Error->szFunctionLevel, szFunctionLevel);
#ifdef _Debug
if (giDebug){
DebugDumpError(h);
}
#endif
}
/*
Process an ODBC structures error state from Win32::ODBC.
This is called when an error is encountered NOT from the ODBC API
but from this body of code.
*/
ODBC_TYPE *ODBCError(char *szString, ODBC_TYPE *h, char *szFunction, char * szFunctionLevel){
if (!h){
h = ODBCLIST;
}
if (h){
h->Error->ErrNum = 911;
strcpy(h->Error->szError, szString);
strcpy(h->Error->szFunction, szFunction);
strcpy(h->Error->szFunctionLevel, szFunctionLevel);
}
#ifdef _Debug
if (giDebug){
DebugDumpError(h);
}
#endif
return h;
}
#ifdef _DEBUG
void DebugDumpError(ODBC_TYPE *h){
char *szBuff;
int iLength;
if (h && h->iDebug && ghDebug){
iLength = ((h->Error->szError)? strlen(h->Error->szError):0) + ((h->Error->szSqlState)? strlen((const char *)h->Error->szSqlState):0)
+ ((h->Error->szFunction)? strlen(h->Error->szFunction):0) + ((h->Error->szFunctionLevel)? strlen(h->Error->szFunctionLevel):0)
+ 100;
if(szBuff = new char [iLength]){
sprintf(szBuff, "ODBCError from connection %i:\n\tErrno: %i\n\tError:\"%s\"\n\tSQLState: %s\n\tFunction: %s\n\tLevel: %s\n",
h->conn, h->Error->ErrNum, h->Error->szError, h->Error->szSqlState, h->Error->szFunction, h->Error->szFunctionLevel);
DebugConnection(szBuff, h);
}
delete [] szBuff;
}
}
void DebugConnection(char *szString, ODBC_TYPE *h){
DWORD dCount;
CMom *cDaughter = 0;
char *szBuff;
int iLength;
if (ghDebug){
if (::cMom){
cDaughter = (CMom *) ::cMom->operator[](GetCurrentThreadId());
}
iLength = 100;
if (szBuff = new char [iLength]){
sprintf(szBuff, "Thread %05i, Total Threads %03i, Connection %03i, Thread Connections %03i:\n\t", GetCurrentThreadId(), giThread, (h)? h->conn:-1, (cDaughter)? cDaughter->Total():0);
DEBUG_DUMP("DebugConnection: Entering Critical Section gDCS");
EnterCriticalSection(&gDCS);
DebugPrint(szBuff);
DebugPrint(szString);
DebugPrint("\n\n");
LeaveCriticalSection(&gDCS);
DEBUG_DUMP("DebugConnection: Left Critical Section gDCS ");
delete [] szBuff;
}
}
return;
}
void DebugDump(char *szString){
if (giDebug){
DEBUG_DUMP("DebugDump: Entering Critical Section gDCS");
EnterCriticalSection(&gDCS);
DebugPrint(szString);
LeaveCriticalSection(&gDCS);
DEBUG_DUMP("DebugDump: Left Critical Section gDCS ");
}
return;
}
void DebugPrint(char *szString){
DWORD dCount;
if (ghDebug){
WriteConsole(ghDebug, szString, strlen(szString), &dCount, 0);
}
if (!ghFile && gszFile){
ghFile = CreateFile(gszFile, GENERIC_WRITE, FILE_SHARE_READ, 0, CREATE_ALWAYS, 0, 0);
DebugPrint("\n\t*******\n\tDumping debug text to: \"");
DebugPrint(gszFile);
DebugPrint("\"\n\t*******\n");
}
if(ghFile){
WriteFile(ghFile, szString, strlen(szString), &dCount, 0);
FlushFileBuffers(ghFile);
}
return;
}
#endif
/*
Map a column name (field name) to a column number that exists in a
resulting dataset.
*/
int ColNameToNum(ODBC_TYPE *h, char *szName){
int iResult = 0;
int x;
char szBuff[ODBC_BUFF_SIZE];
DWORD dBuffLen = 0;
for(x=1; x<=h->numcols; x++){
SQLColAttributes(h->hstmt, x, SQL_COLUMN_NAME, szBuff, ODBC_BUFF_SIZE, (short *)&dBuffLen, NULL);
if(!stricmp(szName, szBuff)){
iResult = x;
break;
}
}
return iResult;
}
/*
Check if the specified connection is valid and return the pointer
to the ODBC structure.
Return a pointer to the master list (ODBCLIST) and genereate an error if
there is no valid connection.
*/
ODBC_TYPE * _NT_ODBC_Verify(int iODBC){
CMom *cmDaughter = 0;
ODBC_TYPE *h = 0;
if(::cMom){
// EnterCriticalSection(&gCS);
if (cmDaughter = (CMom *) ::cMom->operator[](GetCurrentThreadId())){
if (!(h = (ODBC_TYPE *) cmDaughter->operator[]((DWORD)iODBC))){
h = (ODBC_TYPE *) cmDaughter->operator[]((DWORD)0);
}
}
// LeaveCriticalSection(&gCS);
}
return (h);
}
/*
Delete an ODBC structure. This will call other routines to release
allocated memory and reset ODBC state information.
*/
int DeleteConn(int iODBC){
ODBC_TYPE *h = 0;
int iResult = 0;
if(::cMom){
CMom *cmDaughter = 0;
if (cmDaughter = (CMom *) ::cMom->operator[](GetCurrentThreadId())){
if (h = (ODBC_TYPE *) cmDaughter->operator[]((DWORD)iODBC)){
if (FreeODBC(h)){
cmDaughter->Remove((DWORD)iODBC);
delete h;
iResult++;
}
}
}
}
return iResult;
}
/*
Map an Stmt close type string to the actual Stmt close type value.
*/
char *MapCloseType(UWORD uCloseType){
char *szType;
switch(uCloseType){
case SQL_DONT_CLOSE:
szType = "SQL_DONT_CLOSE";
break;
case SQL_DROP:
szType = "SQL_DROP";
break;
case SQL_CLOSE:
szType = "SQL_CLOSE";
break;
case SQL_UNBIND:
szType = "SQL_UNBIND";
break;
case SQL_RESET_PARAMS:
szType = "SQL_RESET_PARAMS";
default:
szType = 0;
}
return szType;
}
/*------------------- P E R L O D B C F U N C T I O N S ---------------*/
/*
ODBC_Connect
Connects to and ODBC Data Source Name (DSN).
*/
XS(XS_WIN32__ODBC_Connect) // ODBC_Connect(Connection string: input) returns connection #
{
dXSARGS;
char szDSN[DSN_LENGTH]; // string to hold datasource name
ODBC_TYPE * h;
int con_num; //connection #
char *szIn = 0;
int iTemp = 0;
RETCODE retcode; // Misc ODBC sh!t
UCHAR buff[ODBC_BUFF_SIZE];
SDWORD bufflenout;
int lenn = 0;
if(items < 1 || !(items & 1)){
// We need at least 1 (DSN) entry. If more then we need them in pairs of
// two, hence (items & 1) make sure we have an odd number of entries...
// (dsn) + (ConnetOption, Value) [ + (ConnectOption, Value)] ...
CROAK("usage: ($Connection, $Err, $ErrText) = ODBC_Connect($DSN [, $ConnectOption , $Value] ...)\n");
}
szIn = SvPV(ST(0), na);
if(strcspn(szIn, "[]{}(),;?*=!@") < strlen(szIn)){
strncpy(szDSN, szIn, DSN_LENGTH - 1);
szDSN[DSN_LENGTH - 1] = '\0';
}else{
// Let's assume that the DSN will not exceed DSN_LENGTH
strcpy(szDSN, "DSN=");
strcat(szDSN, szIn); // Data Source string
strcat(szDSN, ";");
}
PUSHMARK(sp);
// Allocate new ODBC connection
if (!(h = NewODBC())){
h = ODBCError("Could not allocate memory of an ODBC connection\n", (ODBC_TYPE*)0, "ODBC_Connect", "1");
}else{
strcpy(h->szUserDSN, szIn);
if (h->hdbc = new ODBC_HDBC){
h->hdbc->hdbc = SQL_NULL_HDBC;
h->hdbc->iConnected = 0;
h->hdbc->iCount = 1; // Set the count to include this particular instance
}else{
_NT_ODBC_Error(h, "ODBC_Connect could not allocate memory for an HDBC connection", "1a");
DeleteConn(h->conn);
}
if (!h->Error->ErrNum){
retcode = SQLAllocConnect(h->henv, &h->hdbc->hdbc);
if (retcode != SQL_SUCCESS)
{
_NT_ODBC_Error((ODBC_TYPE*)0, "ODBC_Connect", "2");
DeleteConn(h->conn);
}
}
if (!h->Error->ErrNum){
// If any pre-connect SQLConnectOptions are specified, do them now...
if (items > 1){
int iTemp = items -1;
UWORD uType;
UDWORD udValue;
char szError[100];
while (iTemp > 1){
uType= SvIV(ST(iTemp - 1));
if (SvIOKp(ST(iTemp)) || SvNOKp(ST(iTemp))){
udValue = SvIV(ST(iTemp));
}else{
udValue = (UDWORD) SvPV(ST(iTemp), na);
}
retcode = SQLSetConnectOption(h->hdbc->hdbc, uType, udValue);
if (retcode != SQL_SUCCESS){
sprintf(szError, "2a: Connect Item number %i", (iTemp/2));
_NT_ODBC_Error(h, "ODBC_Connect", szError);
break;
}
iTemp -= 2;
}
}
}
if (!h->Error->ErrNum){
retcode = SQLDriverConnect(h->hdbc->hdbc, (HWND) NULL, (unsigned char *)szDSN, strlen(szDSN), buff, ODBC_BUFF_SIZE, (short *)&bufflenout, SQL_DRIVER_NOPROMPT);
if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO){
_NT_ODBC_Error(h, "ODBC_Connect", "4");
strcpy(ODBCLIST->Error->szError, h->Error->szError);
strcpy((char *)ODBCLIST->Error->szSqlState, (char *)h->Error->szSqlState);
strcpy(ODBCLIST->Error->szFunction, h->Error->szFunction);
strcpy(ODBCLIST->Error->szFunctionLevel, h->Error->szFunctionLevel);
// If connection fails it does not genereate an error num. Hmmm...
if(! h->Error->ErrNum){
h->Error->ErrNum = 911;
}
ODBCLIST->Error->ErrNum = h->Error->ErrNum;
DeleteConn(h->conn);
h = ODBCLIST;
}else{
h->hdbc->iConnected = 1;
if (h->szDSN = new char [strlen((const char *)buff) + 1]){
strcpy(h->szDSN, (char *) buff);
}
if (retcode == SQL_SUCCESS_WITH_INFO){
_NT_ODBC_Error(h, "ODBC_Connect", "5");
h->Error->ErrNum = 0;
}
}
}
if (!h->Error->ErrNum){
retcode = ResetStmt(h);
if (retcode != SQL_SUCCESS){
DeleteConn(h->conn);
}
}
}
if (!h->Error->ErrNum){ // everything is happy
XPUSHs(sv_2mortal(newSVnv((double)0)));
XPUSHs(sv_2mortal(newSVnv((double)h->conn)));
// Report the szError ONLY because it may contain state info.
XPUSHs(sv_2mortal(newSVpv(h->Error->szError, strlen(h->Error->szError))));
}else{
// Report the error
ReturnError(h, pPerl);
}
PUTBACK;
}
XS(XS_WIN32__ODBC_Execute) // ODBC_Execute($connection, $sql_text) returns (0,@fieldnames) or (err, errtext)
{
dXSARGS;
ODBC_TYPE * h;
int con_num; // Connection #
RETCODE retcode; //ODBC gunk
UCHAR buff2[ODBC_BUFF_SIZE];
SDWORD bufflenout;
int lenn;
UWORD x;
char * szSQL;
int len;
if(items < 2){
CROAK("usage: ($err,@fields) = ODBC_Execute($connection, $sql_text)\nprint \"Oops: $field[0]\" if ($err);\n");
}
h = _NT_ODBC_Verify(SvIV(ST(0)));
CleanError(h->Error);
PUSHMARK(sp);
if (h != ODBCLIST){
szSQL = SvPV(ST(1), na); // get SQL string
// Do we really want to resetsmtm now?
if (ResetStmt(h) == SQL_SUCCESS){
if (h->szCommand){
delete [] h->szCommand;
h->szCommand = 0;
}
if (h->szCommand = new char [strlen(szSQL) + 1]){
strcpy(h->szCommand, szSQL);
}
}
if (!h->Error->ErrNum){
retcode = SQLExecDirect(h->hstmt, (unsigned char*)szSQL, strlen(szSQL));
if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO){
_NT_ODBC_Error(h, "ODBC_Execute", "1");
}else{
if(h->Results){
delete h->Results;
}
h->Results = new CResults(h);
}
}
}
if (!h->Error->ErrNum){ // everything is happy
XPUSHs(sv_2mortal(newSVnv((double)0)));
retcode = SQLNumResultCols(h->hstmt, (short *)&h->numcols);
for(x=1; x<=h->numcols; x++){
SQLColAttributes(h->hstmt, x, SQL_COLUMN_NAME, buff2, ODBC_BUFF_SIZE, (short *)&bufflenout, NULL);
XPUSHs(sv_2mortal(newSVpv((char *)buff2, strlen((const char*)buff2))));
}
}else{
// Report the error
ReturnError(h, pPerl);
}
PUTBACK;
}
/*
ODBC_Fetch
Fetch a row from the current dataset.
*/
XS(XS_WIN32__ODBC_Fetch) // ODBC_Fetch($connection) returns (0,@dataelements) or ($err,$errtext)
{
dXSARGS;
ODBC_TYPE * h;
int con_num;
RETCODE retcode; // yet more ODBC garbage
UWORD uType = SQL_FETCH_NEXT;
SDWORD sdRow = 1;
DWORD dRowSetSize = 1;
UWORD *rgfRowStatus = 0;
UDWORD udCRow = 0;
int iTemp;
if(items < 1 || items > 3){
CROAK("usage: ($err,@col) = ODBC_Fetch($connection [, $Row [, $FetchType]])\n0die \"Oops: $col[0]\" if ($err);\n");
}
h = _NT_ODBC_Verify(SvIV(ST(0)));
// NOTICE: We do not perform a CleanODBC(h) here because a dirty
// h will tell us if there is an error such as EOR (end of records).
if (items > 1){
sdRow = SvIV(ST(1));
// uType = SQL_FETCH_RELATIVE;
}
if (items > 2){
uType = SvIV(ST(2));
}
PUSHMARK(sp);
if (h != ODBCLIST){
SQLGetStmtOption(h->hstmt, SQL_ROWSET_SIZE, &dRowSetSize);
// SQLSetStmtOption(h->hstmt, SQL_ROWSET_SIZE, 1);
if (!(rgfRowStatus = new UWORD [dRowSetSize])){
ODBCError("Can not allocate memory for row status results", h, "ODBC_Fetch", "1b");
}
if (h->Results){
// Clear out the old results
h->Results->Clean();
}
retcode = SQLExtendedFetch(h->hstmt, uType, sdRow, &udCRow, rgfRowStatus);
// SQLSetStmtOption(h->hstmt, SQL_ROWSET_SIZE, dRowSetSize);
if((retcode != SQL_SUCCESS) && (retcode != SQL_SUCCESS_WITH_INFO)){
_NT_ODBC_Error(h, "ODBC_Fetch", "2");
}
if (retcode == SQL_NO_DATA_FOUND){
ODBCError("No data records remain.", h, "ODBC_Fetch", "3");
h->Error->EOR = 1;
}
if(retcode == SQL_SUCCESS_WITH_INFO){
_NT_ODBC_Error(h, "ODBC_Fetch", "4");
}
}
if (! h->Error->ErrNum){
// everything is happy
XPUSHs(sv_2mortal(newSVnv((double)0)));
if(items > 1){
for(iTemp = 0; iTemp < udCRow; iTemp++){
XPUSHs(sv_2mortal(newSVnv((double)rgfRowStatus[iTemp])));
}
}else{
XPUSHs(sv_2mortal(newSVnv((double)1)));
}
}else{
// Report the error
ReturnError(h, pPerl);
}
if (rgfRowStatus){
delete [] rgfRowStatus;
}
PUTBACK;
}
XS(XS_WIN32__ODBC_GetError)
{
dXSARGS;
ODBC_TYPE *h;
h = _NT_ODBC_Verify(SvIV(ST(0)));
PUSHMARK(sp);
XPUSHs(sv_2mortal(newSVnv((double)h->Error->ErrNum)));
XPUSHs(sv_2mortal(newSVpv(h->Error->szError, strlen(h->Error->szError))));
XPUSHs(sv_2mortal(newSVpv((char *)h->Error->szSqlState, strlen(( const char *) h->Error->szSqlState))));
if (h->iDebug){
XPUSHs(sv_2mortal(newSVpv((char *)h->Error->szFunction, strlen(( const char *) h->Error->szFunction))));
XPUSHs(sv_2mortal(newSVpv((char *)h->Error->szFunctionLevel, strlen(( const char *) h->Error->szFunctionLevel))));
}
PUTBACK;
}
XS(XS_WIN32__ODBC_Disconnect) // usage: ODBC_Disconnect($conn) or ODBC_Disconnect() for all
{
dXSARGS;
ODBC_TYPE *h;
int iResult = 0;
int conn;
if(items < 1){
conn = 0;
}else{
conn = SvIV(ST(0));
}
PUSHMARK(sp);
if (!(iResult = DeleteConn(conn))){
h = ODBCError("No such connection", (ODBC_TYPE*) 0, "ODBC_Disconnect", "1");
#ifdef _Debug
if (h){
if(h->iDebug){
char szBuff[40];
sprintf(szBuff, "ODBC_Disconnect: No such connection %i\n", conn);
DebugConnection(szBuff, h);
}
}
#endif
}
if (iResult){
XPUSHs(sv_2mortal(newSVnv((double)0)));
XPUSHs(sv_2mortal(newSVnv((double)iResult)));
}else{
// Report the error
ReturnError(h, pPerl);
}
PUTBACK;
}
XS(XS_WIN32__ODBC_TableList) // ODBC_TableList($connection) returns (0,@TableNames) or ($err,$errtext)
{
dXSARGS;
RETCODE retcode;
if(items != 5){
CROAK("usage: ($Err,@ColumnNames) = ODBC_TableList($connection, $Qualifier, $Owner, $TableName, $TableType)\n");
}
retcode = TableColList(pPerl, 0);
}
XS(XS_WIN32__ODBC_ColumnList)
{
dXSARGS;
RETCODE retcode;
if(items != 5){
CROAK("usage: ($Err,@ColumnNames) = ODBC_ColumnList($connection, $Qualifier, $Owner, $TableName, $ColumnName)\n");
}
retcode = TableColList(pPerl, 1);
}
RETCODE TableColList(CPerl *pPerl, int iType){
dXSARGS;
ODBC_TYPE * h;
int con_num, iTemp;
UCHAR buff2[ODBC_BUFF_SIZE];
SDWORD bufflenout;
UWORD x;
RETCODE retcode;
UCHAR *szQualifier, *szOwner, *szName, *szType;
SWORD sQLen, sOLen, sNLen, sTLen = 0;
UWORD uTemp = 0;
h = _NT_ODBC_Verify(SvIV(ST(0)));
CleanError(h->Error);
if (szQualifier = (unsigned char *) SvPV(ST(1), na)){
if (!(sQLen = strlen((char *)szQualifier))){
szQualifier = 0;
}
}
if (szOwner = (unsigned char *) SvPV(ST(2), na)){
if (!(sOLen = strlen((char *)szOwner))){
szOwner = 0;
}
}
if (szName = (unsigned char *) SvPV(ST(3), na)){
if (!(sNLen = strlen((char *)szName))){
szName = 0;
}
}
if (szType = (unsigned char *) SvPV(ST(4), na)){
if (!(sTLen = strlen((char *)szType))){
szType = 0;
}
}
PUSHMARK(sp);
if (h != ODBCLIST){
CleanError(h->Error);
retcode = ResetStmt(h);
if (h->szCommand){
delete [] h->szCommand;
h->szCommand = 0;
}
/* The funny odd thing about this next line is that when we allocate
memory of h->szCommand it will be based on a sprintf(). The format
string for sprintf() will have references to szQualifier, szOwner, etc.
IF any of those strings are 0 then the %s's in the format string may be
replaced with "(null)" or some other indicator of a null pointer. Therefore
in the event of szQualifier (or whatever) == 0 we will provide an arbitrary
number of bytes for allocation (like 10).
*/