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/* Module: setup.c
*
* Description: This module contains the setup functions for
* adding/modifying a Data Source in the ODBC.INI portion
* of the registry.
*
* Classes: n/a
*
* API functions: ConfigDSN
*
* Comments: See "notice.txt" for copyright and license information.
*
*************************************************************************************/
#include "psqlodbc.h"
#include "connection.h"
#include <windows.h>
#include <windowsx.h>
#include <odbcinst.h>
#include <string.h>
#include <stdlib.h>
#include "resource.h"
#include "dlg_specific.h"
#define INTFUNC __stdcall
extern HINSTANCE NEAR s_hModule; /* Saved module handle. */
extern GLOBAL_VALUES globals;
// Constants ---------------------------------------------------------------
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#define MAXPATHLEN (255+1) // Max path length
#define MAXKEYLEN (15+1) // Max keyword length
#define MAXDESC (255+1) // Max description length
#define MAXDSNAME (32+1) // Max data source name length
// Globals -----------------------------------------------------------------
// NOTE: All these are used by the dialog procedures
typedef struct tagSETUPDLG {
HWND hwndParent; // Parent window handle
LPCSTR lpszDrvr; // Driver description
ConnInfo ci;
char szDSN[MAXDSNAME]; // Original data source name
BOOL fNewDSN; // New data source flag
BOOL fDefault; // Default data source flag
} SETUPDLG, FAR *LPSETUPDLG;
// Prototypes --------------------------------------------------------------
void INTFUNC CenterDialog(HWND hdlg);
int CALLBACK ConfigDlgProc(HWND hdlg, WORD wMsg, WPARAM wParam, LPARAM lParam);
void INTFUNC ParseAttributes (LPCSTR lpszAttributes, LPSETUPDLG lpsetupdlg);
BOOL INTFUNC SetDSNAttributes(HWND hwnd, LPSETUPDLG lpsetupdlg);
/* ConfigDSN ---------------------------------------------------------------
Description: ODBC Setup entry point
This entry point is called by the ODBC Installer
(see file header for more details)
Input : hwnd ----------- Parent window handle
fRequest ------- Request type (i.e., add, config, or remove)
lpszDriver ----- Driver name
lpszAttributes - data source attribute string
Output : TRUE success, FALSE otherwise
--------------------------------------------------------------------------*/
BOOL CALLBACK ConfigDSN (HWND hwnd,
WORD fRequest,
LPCSTR lpszDriver,
LPCSTR lpszAttributes)
{
BOOL fSuccess; // Success/fail flag
GLOBALHANDLE hglbAttr;
LPSETUPDLG lpsetupdlg;
// Allocate attribute array
hglbAttr = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, sizeof(SETUPDLG));
if (!hglbAttr)
return FALSE;
lpsetupdlg = (LPSETUPDLG)GlobalLock(hglbAttr);
// Parse attribute string
if (lpszAttributes)
ParseAttributes(lpszAttributes, lpsetupdlg);
// Save original data source name
if (lpsetupdlg->ci.dsn[0])
lstrcpy(lpsetupdlg->szDSN, lpsetupdlg->ci.dsn);
else
lpsetupdlg->szDSN[0] = '\0';
// Remove data source
if (ODBC_REMOVE_DSN == fRequest) {
// Fail if no data source name was supplied
if (!lpsetupdlg->ci.dsn[0])
fSuccess = FALSE;
// Otherwise remove data source from ODBC.INI
else
fSuccess = SQLRemoveDSNFromIni(lpsetupdlg->ci.dsn);
}
// Add or Configure data source
else {
// Save passed variables for global access (e.g., dialog access)
lpsetupdlg->hwndParent = hwnd;
lpsetupdlg->lpszDrvr = lpszDriver;
lpsetupdlg->fNewDSN = (ODBC_ADD_DSN == fRequest);
lpsetupdlg->fDefault = !lstrcmpi(lpsetupdlg->ci.dsn, INI_DSN);
// Display the appropriate dialog (if parent window handle supplied)
if (hwnd) {
// Display dialog(s)
fSuccess = (IDOK == DialogBoxParam(s_hModule,
MAKEINTRESOURCE(DLG_CONFIG),
hwnd,
ConfigDlgProc,
(LONG)(LPSTR)lpsetupdlg));
}
else if (lpsetupdlg->ci.dsn[0])
fSuccess = SetDSNAttributes(hwnd, lpsetupdlg);
else
fSuccess = FALSE;
}
GlobalUnlock(hglbAttr);
GlobalFree(hglbAttr);
return fSuccess;
}
/* CenterDialog ------------------------------------------------------------
Description: Center the dialog over the frame window
Input : hdlg -- Dialog window handle
Output : None
--------------------------------------------------------------------------*/
void INTFUNC CenterDialog(HWND hdlg)
{
HWND hwndFrame;
RECT rcDlg, rcScr, rcFrame;
int cx, cy;
hwndFrame = GetParent(hdlg);
GetWindowRect(hdlg, &rcDlg);
cx = rcDlg.right - rcDlg.left;
cy = rcDlg.bottom - rcDlg.top;
GetClientRect(hwndFrame, &rcFrame);
ClientToScreen(hwndFrame, (LPPOINT)(&rcFrame.left));
ClientToScreen(hwndFrame, (LPPOINT)(&rcFrame.right));
rcDlg.top = rcFrame.top + (((rcFrame.bottom - rcFrame.top) - cy) >> 1);
rcDlg.left = rcFrame.left + (((rcFrame.right - rcFrame.left) - cx) >> 1);
rcDlg.bottom = rcDlg.top + cy;
rcDlg.right = rcDlg.left + cx;
GetWindowRect(GetDesktopWindow(), &rcScr);
if (rcDlg.bottom > rcScr.bottom)
{
rcDlg.bottom = rcScr.bottom;
rcDlg.top = rcDlg.bottom - cy;
}
if (rcDlg.right > rcScr.right)
{
rcDlg.right = rcScr.right;
rcDlg.left = rcDlg.right - cx;
}
if (rcDlg.left < 0) rcDlg.left = 0;
if (rcDlg.top < 0) rcDlg.top = 0;
MoveWindow(hdlg, rcDlg.left, rcDlg.top, cx, cy, TRUE);
return;
}
/* ConfigDlgProc -----------------------------------------------------------
Description: Manage add data source name dialog
Input : hdlg --- Dialog window handle
wMsg --- Message
wParam - Message parameter
lParam - Message parameter
Output : TRUE if message processed, FALSE otherwise
--------------------------------------------------------------------------*/
int CALLBACK ConfigDlgProc(HWND hdlg,
WORD wMsg,
WPARAM wParam,
LPARAM lParam)
{
switch (wMsg) {
// Initialize the dialog
case WM_INITDIALOG:
{
LPSETUPDLG lpsetupdlg = (LPSETUPDLG) lParam;
ConnInfo *ci = &lpsetupdlg->ci;
/* Hide the driver connect message */
ShowWindow(GetDlgItem(hdlg, DRV_MSG_LABEL), SW_HIDE);
SetWindowLong(hdlg, DWL_USER, lParam);
CenterDialog(hdlg); // Center dialog
// NOTE: Values supplied in the attribute string will always
// override settings in ODBC.INI
// Get the rest of the common attributes
getDSNinfo(ci, CONN_DONT_OVERWRITE);
// Fill in any defaults
getDSNdefaults(ci);
// Initialize dialog fields
SetDlgStuff(hdlg, ci);
if (lpsetupdlg->fDefault) {
EnableWindow(GetDlgItem(hdlg, IDC_DSNAME), FALSE);
EnableWindow(GetDlgItem(hdlg, IDC_DSNAMETEXT), FALSE);
}
else
SendDlgItemMessage(hdlg, IDC_DSNAME,
EM_LIMITTEXT, (WPARAM)(MAXDSNAME-1), 0L);
SendDlgItemMessage(hdlg, IDC_DESC,
EM_LIMITTEXT, (WPARAM)(MAXDESC-1), 0L);
return TRUE; // Focus was not set
}
// Process buttons
case WM_COMMAND:
switch (GET_WM_COMMAND_ID(wParam, lParam)) {
// Ensure the OK button is enabled only when a data source name
// is entered
case IDC_DSNAME:
if (GET_WM_COMMAND_CMD(wParam, lParam) == EN_CHANGE)
{
char szItem[MAXDSNAME]; // Edit control text
// Enable/disable the OK button
EnableWindow(GetDlgItem(hdlg, IDOK),
GetDlgItemText(hdlg, IDC_DSNAME,
szItem, sizeof(szItem)));
return TRUE;
}
break;
// Accept results
case IDOK:
{
LPSETUPDLG lpsetupdlg;
lpsetupdlg = (LPSETUPDLG)GetWindowLong(hdlg, DWL_USER);
// Retrieve dialog values
if (!lpsetupdlg->fDefault)
GetDlgItemText(hdlg, IDC_DSNAME,
lpsetupdlg->ci.dsn,
sizeof(lpsetupdlg->ci.dsn));
// Get Dialog Values
GetDlgStuff(hdlg, &lpsetupdlg->ci);
// Update ODBC.INI
SetDSNAttributes(hdlg, lpsetupdlg);
}
// Return to caller
case IDCANCEL:
EndDialog(hdlg, wParam);
return TRUE;
case IDC_DRIVER:
DialogBoxParam(s_hModule, MAKEINTRESOURCE(DLG_OPTIONS_DRV),
hdlg, driver_optionsProc, (LPARAM) NULL);
return TRUE;
case IDC_DATASOURCE:
{
LPSETUPDLG lpsetupdlg;
lpsetupdlg = (LPSETUPDLG)GetWindowLong(hdlg, DWL_USER);
DialogBoxParam(s_hModule, MAKEINTRESOURCE(DLG_OPTIONS_DS),
hdlg, ds_optionsProc, (LPARAM) &lpsetupdlg->ci);
return TRUE;
}
}
break;
}
// Message not processed
return FALSE;
}
/* ParseAttributes ---------------------------------------------------------
Description: Parse attribute string moving values into the aAttr array
Input : lpszAttributes - Pointer to attribute string
Output : None (global aAttr normally updated)
--------------------------------------------------------------------------*/
void INTFUNC ParseAttributes(LPCSTR lpszAttributes, LPSETUPDLG lpsetupdlg)
{
LPCSTR lpsz;
LPCSTR lpszStart;
char aszKey[MAXKEYLEN];
int cbKey;
char value[MAXPATHLEN];
memset(&lpsetupdlg->ci, 0, sizeof(ConnInfo));
for (lpsz=lpszAttributes; *lpsz; lpsz++)
{ // Extract key name (e.g., DSN), it must be terminated by an equals
lpszStart = lpsz;
for (;; lpsz++)
{
if (!*lpsz)
return; // No key was found
else if (*lpsz == '=')
break; // Valid key found
}
// Determine the key's index in the key table (-1 if not found)
cbKey = lpsz - lpszStart;
if (cbKey < sizeof(aszKey))
{
_fmemcpy(aszKey, lpszStart, cbKey);
aszKey[cbKey] = '\0';
}
// Locate end of key value
lpszStart = ++lpsz;
for (; *lpsz; lpsz++);
// lpsetupdlg->aAttr[iElement].fSupplied = TRUE;
_fmemcpy(value, lpszStart, MIN(lpsz-lpszStart+1, MAXPATHLEN));
mylog("aszKey='%s', value='%s'\n", aszKey, value);
// Copy the appropriate value to the conninfo
copyAttributes(&lpsetupdlg->ci, aszKey, value);
}
return;
}
/* SetDSNAttributes --------------------------------------------------------
Description: Write data source attributes to ODBC.INI
Input : hwnd - Parent window handle (plus globals)
Output : TRUE if successful, FALSE otherwise
--------------------------------------------------------------------------*/
BOOL INTFUNC SetDSNAttributes(HWND hwndParent, LPSETUPDLG lpsetupdlg)
{
LPCSTR lpszDSN; // Pointer to data source name
lpszDSN = lpsetupdlg->ci.dsn;
// Validate arguments
if (lpsetupdlg->fNewDSN && !*lpsetupdlg->ci.dsn)
return FALSE;
// Write the data source name
if (!SQLWriteDSNToIni(lpszDSN, lpsetupdlg->lpszDrvr))
{
if (hwndParent)
{
char szBuf[MAXPATHLEN];
char szMsg[MAXPATHLEN];
LoadString(s_hModule, IDS_BADDSN, szBuf, sizeof(szBuf));
wsprintf(szMsg, szBuf, lpszDSN);
LoadString(s_hModule, IDS_MSGTITLE, szBuf, sizeof(szBuf));
MessageBox(hwndParent, szMsg, szBuf, MB_ICONEXCLAMATION | MB_OK);
}
return FALSE;
}
// Update ODBC.INI
writeDSNinfo(&lpsetupdlg->ci);
// If the data source name has changed, remove the old name
if (lstrcmpi(lpsetupdlg->szDSN, lpsetupdlg->ci.dsn))
{
SQLRemoveDSNFromIni(lpsetupdlg->szDSN);
}
return TRUE;
}
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