Source code of Windows XP (NT5)
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//*********************************************************************
//* Microsoft Windows **
//* Copyright(c) Microsoft Corp., 1994 **
//*********************************************************************
#include "admincfg.h"
#include "regstr.h"
BOOL InitSettingData(TABLEENTRY * pTableEntry,SETTINGDATA *pSettingData);
HGLOBAL AllocateUser(CHAR * szName,DWORD dwType);
VOID RemoveDeletedUser(USERHDR * pUserHdr);
USERHDR * pDeletedUserList = NULL;
UINT nDeletedUserCount = 0;
/*******************************************************************
NAME: AddUser
SYNOPSIS: Allocates a user and adds it to the list control.
********************************************************************/
HGLOBAL AddUser(HWND hwndList,CHAR * szName,DWORD dwType)
{
HGLOBAL hUser;
LV_ITEM lvi;
UINT uStrID=0;
if (!(hUser = AllocateUser(szName,dwType))) return NULL;
lvi.mask = LVIF_TEXT | LVIF_IMAGE | LVIF_STATE | LVIF_PARAM;
lvi.iItem = 0;
lvi.iSubItem = 0;
lvi.state = 0;
lvi.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
lvi.pszText = szName;
lvi.cchTextMax = lstrlen(szName)+1;
lvi.iImage = GetUserImageIndex(dwType);
lvi.lParam = (LPARAM) hUser;
if (dwAppState & AS_POLICYFILE) {
// if a "default user/default workstation" entry exists, init the new
// user/computer with that data
switch (dwType & UT_MASK) {
case UT_USER:
uStrID = IDS_DEFAULTUSER;
break;
case UT_MACHINE:
uStrID = IDS_DEFAULTCOMPUTER;
break;
}
if (uStrID) {
LV_FINDINFO lvfi;
CHAR szDefaultName[USERNAMELEN+1];
int iSel=-1;
HGLOBAL hDefaultUser;
USERDATA * pUserData;
BOOL fFound=FALSE;
LoadSz(uStrID,szDefaultName,sizeof(szDefaultName));
lvfi.flags = LVFI_STRING | LVFI_NOCASE;
lvfi.psz = szDefaultName;
while (!fFound && (iSel=ListView_FindItem(hwndUser,iSel,&lvfi)) >= 0) {
hDefaultUser=(HGLOBAL) LongToHandle(ListView_GetItemParm(hwndUser,iSel));
if (hDefaultUser && (pUserData = (USERDATA *)
GlobalLock(hDefaultUser))) {
if ( (pUserData->hdr.dwType & UT_MASK) == dwType)
fFound = TRUE;
GlobalUnlock(hDefaultUser);
}
}
// copy default user data to new user
if (fFound)
CopyUser(hDefaultUser,hUser);
}
}
if (ListView_InsertItem(hwndList,&lvi) < 0) {
FreeUser(hUser);
return NULL;
}
return hUser;
}
/*******************************************************************
NAME: AllocateUser
SYNOPSIS: Allocates memory for user information and initializes
the data area
********************************************************************/
HGLOBAL AllocateUser(CHAR * szName,DWORD dwType)
{
HGLOBAL hMem;
USERDATA * pUserData;
DWORD dwNeeded;
TABLEENTRY * pTableEntry;
dwNeeded = sizeof(USERDATA) + sizeof(SETTINGDATA) *
( (dwType & UT_USER) ? gClassList.nUserDataItems :
gClassList.nMachineDataItems );
if (!(hMem=GlobalAlloc(GHND,dwNeeded))) return NULL;
if (!(pUserData = (USERDATA *) GlobalLock(hMem))) {
GlobalFree(hMem);
return NULL;
}
// init the data structure
pUserData->dwSize = dwNeeded;
pUserData->hdr.dwType = dwType;
pUserData->nSettings = ( (dwType & UT_USER)
? gClassList.nUserDataItems : gClassList.nMachineDataItems );
lstrcpy(pUserData->hdr.szName,szName);
pTableEntry = ( ( dwType & UT_USER ) ? gClassList.pUserCategoryList :
gClassList.pMachineCategoryList);
if (!InitSettingData(pTableEntry,pUserData->SettingData)) {
GlobalUnlock(hMem);
GlobalFree(hMem);
return NULL;
}
// remove this user from the deleted list, if it's on it
RemoveDeletedUser(&pUserData->hdr);
GlobalUnlock(hMem);
return hMem;
}
/*******************************************************************
NAME: CloneUser
SYNOPSIS: Clones the specified user by allocating a duplicate buffer,
copying the data to the 2nd buffer and storing a handle to
the new buffer in the original. This is so the initial state
of a user can be preserved so we can do non-destructive saves.
********************************************************************/
BOOL CloneUser(HGLOBAL hUser)
{
USERDATA * pUserData = (USERDATA *) GlobalLock(hUser);
USERDATA * pUserDataClone;
HGLOBAL hUserClone;
if (!pUserData) return FALSE;
// free existing clone if there is one
if (pUserData->hClone) {
GlobalFree(pUserData->hClone);
pUserData->hClone = NULL;
}
hUserClone = GlobalAlloc(GHND,pUserData->dwSize);
if (!hUserClone || !(pUserDataClone = (USERDATA *) GlobalLock(hUserClone))) {
if (hUserClone)
GlobalFree(hUserClone);
GlobalUnlock(hUser);
return FALSE;
}
// copy the user data to clone and save handle to clone in original user
memcpy (pUserDataClone,pUserData,pUserData->dwSize);
pUserData->hClone = hUserClone;
GlobalUnlock(hUser);
GlobalUnlock(hUserClone);
return TRUE;
}
BOOL CopyUser(HGLOBAL hUserSrc,HGLOBAL hUserDst)
{
BOOL fRet=FALSE;
USERDATA * pUserDataSrc = NULL,* pUserDataDst = NULL;
HGLOBAL hCloneDst;
USERHDR UserhdrDst;
if (!(pUserDataSrc = (USERDATA *) GlobalLock(hUserSrc)) ||
!(pUserDataDst = (USERDATA *) GlobalLock(hUserDst))) {
goto cleanup;
}
// save destination user header & clone handle.. don't want to overwrite
// this stuff
UserhdrDst = pUserDataDst->hdr;
hCloneDst = pUserDataDst->hClone;
// resize buffer if necessary
if (pUserDataDst->dwSize != pUserDataSrc->dwSize) {
if (!(pUserDataDst = (USERDATA *) ResizeBuffer((CHAR *) pUserDataDst,
hUserDst,pUserDataSrc->dwSize,&pUserDataDst->dwSize))) {
goto cleanup;
}
}
// copy src to dest
memcpy(pUserDataDst,pUserDataSrc,pUserDataSrc->dwSize);
fRet = TRUE;
// put the destination user's old header & clone handle back in the
// user data
pUserDataDst->hClone = hCloneDst;
pUserDataDst->hdr = UserhdrDst;
cleanup:
if (pUserDataSrc)
GlobalUnlock(hUserSrc);
if (pUserDataDst)
GlobalUnlock(hUserDst);
return fRet;
}
/*******************************************************************
NAME: InitSettingData
SYNOPSIS: Walks a template tree and initializes user's data buffer
according to template tree
NOTES: Sets checkboxes to "indeterminate", puts default text
in data buffer, etc.
********************************************************************/
BOOL InitSettingData(TABLEENTRY * pTableEntry,SETTINGDATA *pSettingData)
{
while (pTableEntry) {
if (pTableEntry->pChild &&
!InitSettingData(pTableEntry->pChild,pSettingData))
return FALSE;
if (pTableEntry->dwType == ETYPE_POLICY) {
pSettingData[ ( (POLICY *) pTableEntry)->uDataIndex].dwType =
pTableEntry->dwType;
pSettingData[ ( (POLICY *) pTableEntry)->uDataIndex].uData
= (dwAppState & AS_POLICYFILE ? IMG_INDETERMINATE :
IMG_UNCHECKED);
} else if ((pTableEntry->dwType & ETYPE_MASK) == ETYPE_SETTING) {
SETTINGS * pSetting = (SETTINGS *) pTableEntry;
pSettingData[pSetting->uDataIndex].dwType =
pTableEntry->dwType;
switch (pTableEntry->dwType & STYPE_MASK) {
case STYPE_EDITTEXT:
case STYPE_COMBOBOX:
if (pSetting->dwFlags & DF_USEDEFAULT) {
pSettingData[pSetting->uDataIndex].uData =
INIT_WITH_DEFAULT;
break;
case STYPE_CHECKBOX:
pSettingData[pSetting->uDataIndex].uData =
( (pSetting->dwFlags & DF_USEDEFAULT) ? 1 : 0);
break;
case STYPE_NUMERIC:
pSettingData[pSetting->uDataIndex].uData =
( (pSetting->dwFlags & DF_USEDEFAULT) ?
(((NUMERICINFO *) GETOBJECTDATAPTR(pSetting)))
->uDefValue : NO_VALUE);
break;
case STYPE_DROPDOWNLIST:
pSettingData[pSetting->uDataIndex].uData =
( (pSetting->dwFlags & DF_USEDEFAULT) ?
(((DROPDOWNINFO *) GETOBJECTDATAPTR(pSetting)))
->uDefaultItemIndex : NO_VALUE);
break;
}
}
}
pTableEntry = pTableEntry->pNext;
}
return TRUE;
}
/*******************************************************************
NAME: FreeUser
SYNOPSIS: Frees a user buffer. If it has a clone, frees the clone too.
********************************************************************/
BOOL FreeUser(HGLOBAL hUser)
{
USERDATA * pUserData;
// free user's clone if one exists
if (pUserData = (USERDATA *) GlobalLock(hUser)) {
if (pUserData->hClone) {
if (GlobalFlags(pUserData->hClone))
GlobalUnlock(pUserData->hClone);
GlobalFree(pUserData->hClone);
}
GlobalUnlock(hUser);
}
if (GlobalFlags(hUser))
GlobalUnlock(hUser);
GlobalFree(hUser);
return TRUE;
}
BOOL RemoveAllUsers(HWND hwndList)
{
UINT nIndex,nCount = ListView_GetItemCount(hwndList);
for (nIndex=0;nIndex<nCount;nIndex++)
RemoveUser(hwndList,0,FALSE);
#ifdef INCL_GROUP_SUPPORT
FreeGroupPriorityList();
#endif
return TRUE;
}
BOOL RemoveUser(HWND hwndList,UINT nIndex,BOOL fMarkDeleted)
{
HGLOBAL hUser;
hUser = (HGLOBAL) LongToHandle(ListView_GetItemParm(hwndList,nIndex));
if (!hUser) return FALSE;
if (fMarkDeleted) {
USERHDR UserHdr;
if (!GetUserHeader(hUser,&UserHdr))
return FALSE;
if (!AddDeletedUser(&UserHdr))
return FALSE;
}
FreeUser(hUser);
ListView_DeleteItem(hwndList,nIndex);
return TRUE;
}
BOOL SortUsers(VOID)
{
ListView_Arrange(hwndUser,LVA_SORTASCENDING);
return TRUE;
}
BOOL AddDefaultUsers(HWND hwndList)
{
if (!AddUser(hwndList,LoadSz(IDS_DEFAULTUSER,szSmallBuf,sizeof(szSmallBuf)),
UT_USER)) return FALSE;
if (!AddUser(hwndList,LoadSz(IDS_DEFAULTCOMPUTER,szSmallBuf,sizeof(szSmallBuf)),
UT_MACHINE)) return FALSE;
return TRUE;
}
BOOL GetUserHeader(HGLOBAL hUser,USERHDR * pUserHdr)
{
USERDATA * pUserData;
if (!(pUserData = (USERDATA *) GlobalLock(hUser)))
return FALSE;
*pUserHdr = pUserData->hdr;
GlobalUnlock(hUser);
return TRUE;
}
UINT GetUserImageIndex(DWORD dwUserType)
{
return ( (dwUserType & UT_USER ?
( (dwUserType & UF_GROUP) ? IMG_USERS : IMG_USER) :
(dwUserType & UF_GROUP) ? IMG_MACHINES : IMG_MACHINE ) );
}
// when a user is deleted from the main window, we can't just delete it from
// the file right away, so add the user to a list of people we've deleted.
// If/when the user saves, we'll commit the changes and delete them from the
// file.
BOOL AddDeletedUser(USERHDR * pUserHdr)
{
USERHDR * pTemp;
// alloc/realloc buffer to hold copy of the user header
if (!pDeletedUserList) {
pDeletedUserList = (USERHDR *) GlobalAlloc(GPTR,sizeof(USERHDR));
if (!pDeletedUserList)
return FALSE; // out of memory
} else {
pTemp = (USERHDR *) GlobalReAlloc((HGLOBAL) pDeletedUserList,
sizeof(USERHDR) * (nDeletedUserCount + 1),GMEM_ZEROINIT | GMEM_MOVEABLE);
if (!pTemp) return FALSE;
pDeletedUserList = pTemp;
}
pDeletedUserList[nDeletedUserCount] = *pUserHdr;
nDeletedUserCount++;
return TRUE;
}
USERHDR * GetDeletedUser(UINT nIndex)
{
if (!pDeletedUserList || nIndex >= nDeletedUserCount)
return NULL;
return &pDeletedUserList[nIndex];
}
// when adding a user, check to see if it's on the deleted list
// and if so remove it. (ex: add "joe", remove "joe", add "joe".
// on 2nd add, have to remove "joe" from deleted list)
VOID RemoveDeletedUser(USERHDR * pUserHdr)
{
UINT nIndex;
for (nIndex=0;nIndex<nDeletedUserCount;nIndex++) {
// got a match?
if (!lstrcmpi(pDeletedUserList[nIndex].szName,
pUserHdr->szName) && (pDeletedUserList[nIndex].dwType ==
pUserHdr->dwType)) {
// move subsequent entries up one slot in the array
nDeletedUserCount --;
while (nIndex<nDeletedUserCount) {
pDeletedUserList[nIndex] = pDeletedUserList[nIndex+1];
nIndex++;
}
}
}
}
VOID ClearDeletedUserList(VOID)
{
if (pDeletedUserList)
GlobalFree(pDeletedUserList);
pDeletedUserList = NULL;
nDeletedUserCount = 0;
}
// maps the localized default entries in resource ("default user",
// "default computer") to hard-coded non-localized name (".default").
// Other names are unchanged (szMappedName returned same as szUserName)
VOID MapUserName(CHAR * szUserName,CHAR * szMappedName)
{
if (!lstrcmpi(szUserName,LoadSz(IDS_DEFAULTUSER,szSmallBuf,
sizeof(szSmallBuf))) ||
!lstrcmpi(szUserName,LoadSz(IDS_DEFAULTCOMPUTER,szSmallBuf,
sizeof(szSmallBuf)))) {
lstrcpy(szMappedName,szDEFAULTENTRY);
}
else lstrcpy(szMappedName,szUserName);
}
// unmaps the ".default" hard-coded entry to the localized text
// "default user" or "default computer"
VOID UnmapUserName(CHAR * szMappedName,CHAR * szUserName,BOOL fUser)
{
if (!lstrcmpi(szMappedName,szDEFAULTENTRY)) {
lstrcpy(szUserName,LoadSz( (fUser ? IDS_DEFAULTUSER :
IDS_DEFAULTCOMPUTER),szSmallBuf,sizeof(szSmallBuf)));
} else {
lstrcpy(szUserName,szMappedName);
}
}