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reactos/dll/win32/setupapi/stringtable.c

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/*
* Setupapi string table functions
*
* Copyright 2005 Eric Kohl
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "setupapi_private.h"
#define TABLE_DEFAULT_SIZE 256
typedef struct _TABLE_SLOT
{
LPWSTR pString;
LPVOID pData;
DWORD dwSize;
} TABLE_SLOT, *PTABLE_SLOT;
typedef struct _STRING_TABLE
{
PTABLE_SLOT pSlots;
DWORD dwUsedSlots;
DWORD dwMaxSlots;
DWORD dwMaxDataSize;
} STRING_TABLE, *PSTRING_TABLE;
/**************************************************************************
* pSetupStringTableInitialize [SETUPAPI.@]
*
* Creates a new string table and initializes it.
*
* PARAMS
* None
*
* RETURNS
* Success: Handle to the string table
* Failure: NULL
*/
HSTRING_TABLE WINAPI
pSetupStringTableInitialize(VOID)
{
PSTRING_TABLE pStringTable;
TRACE("\n");
pStringTable = MyMalloc(sizeof(STRING_TABLE));
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
return NULL;
}
memset(pStringTable, 0, sizeof(STRING_TABLE));
pStringTable->pSlots = MyMalloc(sizeof(TABLE_SLOT) * TABLE_DEFAULT_SIZE);
if (pStringTable->pSlots == NULL)
{
MyFree(pStringTable);
return NULL;
}
memset(pStringTable->pSlots, 0, sizeof(TABLE_SLOT) * TABLE_DEFAULT_SIZE);
pStringTable->dwUsedSlots = 0;
pStringTable->dwMaxSlots = TABLE_DEFAULT_SIZE;
pStringTable->dwMaxDataSize = 0;
TRACE("Done\n");
return (HSTRING_TABLE)pStringTable;
}
/**************************************************************************
* pSetupStringTableInitializeEx [SETUPAPI.@]
*
* Creates a new string table and initializes it.
*
* PARAMS
* dwMaxExtraDataSize [I] Maximum extra data size
* dwReserved [I] Unused
*
* RETURNS
* Success: Handle to the string table
* Failure: NULL
*/
HSTRING_TABLE WINAPI
pSetupStringTableInitializeEx(DWORD dwMaxExtraDataSize,
DWORD dwReserved)
{
PSTRING_TABLE pStringTable;
TRACE("\n");
pStringTable = MyMalloc(sizeof(STRING_TABLE));
if (pStringTable == NULL) return NULL;
memset(pStringTable, 0, sizeof(STRING_TABLE));
pStringTable->pSlots = MyMalloc(sizeof(TABLE_SLOT) * TABLE_DEFAULT_SIZE);
if (pStringTable->pSlots == NULL)
{
MyFree(pStringTable);
return NULL;
}
memset(pStringTable->pSlots, 0, sizeof(TABLE_SLOT) * TABLE_DEFAULT_SIZE);
pStringTable->dwUsedSlots = 0;
pStringTable->dwMaxSlots = TABLE_DEFAULT_SIZE;
pStringTable->dwMaxDataSize = dwMaxExtraDataSize;
TRACE("Done\n");
return (HSTRING_TABLE)pStringTable;
}
/**************************************************************************
* pSetupStringTableDestroy [SETUPAPI.@]
*
* Destroys a string table.
*
* PARAMS
* hStringTable [I] Handle to the string table to be destroyed
*
* RETURNS
* None
*/
VOID WINAPI
pSetupStringTableDestroy(HSTRING_TABLE hStringTable)
{
PSTRING_TABLE pStringTable;
DWORD i;
TRACE("%p\n", hStringTable);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
return;
if (pStringTable->pSlots != NULL)
{
for (i = 0; i < pStringTable->dwMaxSlots; i++)
{
MyFree(pStringTable->pSlots[i].pString);
pStringTable->pSlots[i].pString = NULL;
MyFree(pStringTable->pSlots[i].pData);
pStringTable->pSlots[i].pData = NULL;
pStringTable->pSlots[i].dwSize = 0;
}
MyFree(pStringTable->pSlots);
}
MyFree(pStringTable);
}
/**************************************************************************
* pSetupStringTableAddString [SETUPAPI.@]
*
* Adds a new string to the string table.
*
* PARAMS
* hStringTable [I] Handle to the string table
* lpString [I] String to be added to the string table
* dwFlags [I] Flags
* 1: case sensitive compare
*
* RETURNS
* Success: String ID
* Failure: -1
*
* NOTES
* If the given string already exists in the string table it will not
* be added again. The ID of the existing string will be returned in
* this case.
*/
DWORD WINAPI
pSetupStringTableAddString(HSTRING_TABLE hStringTable,
LPWSTR lpString,
DWORD dwFlags)
{
PSTRING_TABLE pStringTable;
DWORD i;
TRACE("%p %s %x\n", hStringTable, debugstr_w(lpString), dwFlags);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
return (DWORD)-1;
}
/* Search for existing string in the string table */
for (i = 0; i < pStringTable->dwMaxSlots; i++)
{
if (pStringTable->pSlots[i].pString != NULL)
{
if (dwFlags & 1)
{
if (!lstrcmpW(pStringTable->pSlots[i].pString, lpString))
{
return i + 1;
}
}
else
{
if (!lstrcmpiW(pStringTable->pSlots[i].pString, lpString))
{
return i + 1;
}
}
}
}
/* Check for filled slot table */
if (pStringTable->dwUsedSlots == pStringTable->dwMaxSlots)
{
PTABLE_SLOT pNewSlots;
DWORD dwNewMaxSlots;
/* FIXME: not thread safe */
dwNewMaxSlots = pStringTable->dwMaxSlots * 2;
pNewSlots = MyMalloc(sizeof(TABLE_SLOT) * dwNewMaxSlots);
if (pNewSlots == NULL)
return (DWORD)-1;
memset(&pNewSlots[pStringTable->dwMaxSlots], 0, sizeof(TABLE_SLOT) * (dwNewMaxSlots - pStringTable->dwMaxSlots));
memcpy(pNewSlots, pStringTable->pSlots, sizeof(TABLE_SLOT) * pStringTable->dwMaxSlots);
pNewSlots = InterlockedExchangePointer((PVOID*)&pStringTable->pSlots, pNewSlots);
MyFree(pNewSlots);
pStringTable->dwMaxSlots = dwNewMaxSlots;
return pSetupStringTableAddString(hStringTable, lpString, dwFlags);
}
/* Search for an empty slot */
for (i = 0; i < pStringTable->dwMaxSlots; i++)
{
if (pStringTable->pSlots[i].pString == NULL)
{
pStringTable->pSlots[i].pString = MyMalloc((lstrlenW(lpString) + 1) * sizeof(WCHAR));
if (pStringTable->pSlots[i].pString == NULL)
{
TRACE("Couldn't allocate memory for a new string!\n");
return (DWORD)-1;
}
lstrcpyW(pStringTable->pSlots[i].pString, lpString);
pStringTable->dwUsedSlots++;
return i + 1;
}
}
TRACE("Couldn't find an empty slot!\n");
return (DWORD)-1;
}
/**************************************************************************
* pSetupStringTableAddStringEx [SETUPAPI.@]
*
* Adds a new string plus extra data to the string table.
*
* PARAMS
* hStringTable [I] Handle to the string table
* lpString [I] String to be added to the string table
* dwFlags [I] Flags
* 1: case sensitive compare
* lpExtraData [I] Pointer to the extra data
* dwExtraDataSize [I] Size of the extra data
*
* RETURNS
* Success: String ID
* Failure: -1
*
* NOTES
* If the given string already exists in the string table it will not
* be added again. The ID of the existing string will be returned in
* this case.
*/
DWORD WINAPI
pSetupStringTableAddStringEx(HSTRING_TABLE hStringTable,
LPWSTR lpString,
DWORD dwFlags,
LPVOID lpExtraData,
DWORD dwExtraDataSize)
{
PSTRING_TABLE pStringTable;
DWORD i;
TRACE("%p %s %lx\n", (PVOID)hStringTable, debugstr_w(lpString), dwFlags);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
return (DWORD)-1;
}
/* Search for existing string in the string table */
for (i = 0; i < pStringTable->dwMaxSlots; i++)
{
if (pStringTable->pSlots[i].pString != NULL)
{
if (dwFlags & 1)
{
if (!lstrcmpW(pStringTable->pSlots[i].pString, lpString))
{
return i + 1;
}
}
else
{
if (!lstrcmpiW(pStringTable->pSlots[i].pString, lpString))
{
return i + 1;
}
}
}
}
/* Check for filled slot table */
if (pStringTable->dwUsedSlots == pStringTable->dwMaxSlots)
{
FIXME("Resize the string table!\n");
return (DWORD)-1;
}
/* Search for an empty slot */
for (i = 0; i < pStringTable->dwMaxSlots; i++)
{
if (pStringTable->pSlots[i].pString == NULL)
{
pStringTable->pSlots[i].pString = MyMalloc((lstrlenW(lpString) + 1) * sizeof(WCHAR));
if (pStringTable->pSlots[i].pString == NULL)
{
TRACE("Couldn't allocate memory for a new string!\n");
return (DWORD)-1;
}
lstrcpyW(pStringTable->pSlots[i].pString, lpString);
pStringTable->pSlots[i].pData = MyMalloc(dwExtraDataSize);
if (pStringTable->pSlots[i].pData == NULL)
{
TRACE("Couldn't allocate memory for a new extra data!\n");
MyFree(pStringTable->pSlots[i].pString);
pStringTable->pSlots[i].pString = NULL;
return (DWORD)-1;
}
memcpy(pStringTable->pSlots[i].pData,
lpExtraData,
dwExtraDataSize);
pStringTable->pSlots[i].dwSize = dwExtraDataSize;
pStringTable->dwUsedSlots++;
return i + 1;
}
}
TRACE("Couldn't find an empty slot!\n");
return (DWORD)-1;
}
/**************************************************************************
* pSetupStringTableDuplicate [SETUPAPI.@]
*
* Duplicates a given string table.
*
* PARAMS
* hStringTable [I] Handle to the string table
*
* RETURNS
* Success: Handle to the duplicated string table
* Failure: NULL
*
*/
HSTRING_TABLE WINAPI
pSetupStringTableDuplicate(HSTRING_TABLE hStringTable)
{
PSTRING_TABLE pSourceTable;
PSTRING_TABLE pDestinationTable;
DWORD i;
DWORD length;
TRACE("%p\n", hStringTable);
pSourceTable = (PSTRING_TABLE)hStringTable;
if (pSourceTable == NULL)
{
ERR("Invalid hStringTable!\n");
return (HSTRING_TABLE)NULL;
}
pDestinationTable = MyMalloc(sizeof(STRING_TABLE));
if (pDestinationTable == NULL)
{
ERR("Could not allocate a new string table!\n");
return (HSTRING_TABLE)NULL;
}
memset(pDestinationTable, 0, sizeof(STRING_TABLE));
pDestinationTable->pSlots = MyMalloc(sizeof(TABLE_SLOT) * pSourceTable->dwMaxSlots);
if (pDestinationTable->pSlots == NULL)
{
MyFree(pDestinationTable);
return (HSTRING_TABLE)NULL;
}
memset(pDestinationTable->pSlots, 0, sizeof(TABLE_SLOT) * pSourceTable->dwMaxSlots);
pDestinationTable->dwUsedSlots = 0;
pDestinationTable->dwMaxSlots = pSourceTable->dwMaxSlots;
for (i = 0; i < pSourceTable->dwMaxSlots; i++)
{
if (pSourceTable->pSlots[i].pString != NULL)
{
length = (lstrlenW(pSourceTable->pSlots[i].pString) + 1) * sizeof(WCHAR);
pDestinationTable->pSlots[i].pString = MyMalloc(length);
if (pDestinationTable->pSlots[i].pString != NULL)
{
memcpy(pDestinationTable->pSlots[i].pString,
pSourceTable->pSlots[i].pString,
length);
pDestinationTable->dwUsedSlots++;
}
if (pSourceTable->pSlots[i].pData != NULL)
{
length = pSourceTable->pSlots[i].dwSize;
pDestinationTable->pSlots[i].pData = MyMalloc(length);
if (pDestinationTable->pSlots[i].pData)
{
memcpy(pDestinationTable->pSlots[i].pData,
pSourceTable->pSlots[i].pData,
length);
pDestinationTable->pSlots[i].dwSize = length;
}
}
}
}
return (HSTRING_TABLE)pDestinationTable;
}
/**************************************************************************
* pSetupStringTableGetExtraData [SETUPAPI.@]
*
* Retrieves extra data from a given string table entry.
*
* PARAMS
* hStringTable [I] Handle to the string table
* dwId [I] String ID
* lpExtraData [I] Pointer a buffer that receives the extra data
* dwExtraDataSize [I] Size of the buffer
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
pSetupStringTableGetExtraData(HSTRING_TABLE hStringTable,
DWORD dwId,
LPVOID lpExtraData,
DWORD dwExtraDataSize)
{
PSTRING_TABLE pStringTable;
TRACE("%p %x %p %u\n",
hStringTable, dwId, lpExtraData, dwExtraDataSize);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
return FALSE;
}
if (dwId == 0 || dwId > pStringTable->dwMaxSlots)
{
ERR("Invalid Slot id!\n");
return FALSE;
}
if (pStringTable->pSlots[dwId - 1].dwSize < dwExtraDataSize)
{
ERR("Data size is too large!\n");
return FALSE;
}
memcpy(lpExtraData,
pStringTable->pSlots[dwId - 1].pData,
dwExtraDataSize);
return TRUE;
}
/**************************************************************************
* pSetupStringTableLookUpString [SETUPAPI.@]
*
* Searches a string table for a given string.
*
* PARAMS
* hStringTable [I] Handle to the string table
* lpString [I] String to be searched for
* dwFlags [I] Flags
* 1: case sensitive compare
*
* RETURNS
* Success: String ID
* Failure: -1
*/
DWORD WINAPI
pSetupStringTableLookUpString(HSTRING_TABLE hStringTable,
LPWSTR lpString,
DWORD dwFlags)
{
PSTRING_TABLE pStringTable;
DWORD i;
TRACE("%p %s %x\n", hStringTable, debugstr_w(lpString), dwFlags);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
return (DWORD)-1;
}
/* Search for existing string in the string table */
for (i = 0; i < pStringTable->dwMaxSlots; i++)
{
if (pStringTable->pSlots[i].pString != NULL)
{
if (dwFlags & 1)
{
if (!lstrcmpW(pStringTable->pSlots[i].pString, lpString))
return i + 1;
}
else
{
if (!lstrcmpiW(pStringTable->pSlots[i].pString, lpString))
return i + 1;
}
}
}
return (DWORD)-1;
}
/**************************************************************************
* pSetupStringTableLookUpStringEx [SETUPAPI.@]
*
* Searches a string table and extra data for a given string.
*
* PARAMS
* hStringTable [I] Handle to the string table
* lpString [I] String to be searched for
* dwFlags [I] Flags
* 1: case sensitive compare
* lpExtraData [O] Pointer to the buffer that receives the extra data
* lpReserved [I/O] Unused
*
* RETURNS
* Success: String ID
* Failure: -1
*/
DWORD WINAPI
pSetupStringTableLookUpStringEx(HSTRING_TABLE hStringTable,
LPWSTR lpString,
DWORD dwFlags,
LPVOID lpExtraData,
DWORD dwReserved)
{
PSTRING_TABLE pStringTable;
DWORD i;
TRACE("%p %s %x %p, %x\n", hStringTable, debugstr_w(lpString), dwFlags,
lpExtraData, dwReserved);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
return ~0u;
}
/* Search for existing string in the string table */
for (i = 0; i < pStringTable->dwMaxSlots; i++)
{
if (pStringTable->pSlots[i].pString != NULL)
{
if (dwFlags & 1)
{
if (!lstrcmpW(pStringTable->pSlots[i].pString, lpString))
{
if (lpExtraData)
memcpy(lpExtraData, pStringTable->pSlots[i].pData, dwReserved);
return i + 1;
}
}
else
{
if (!lstrcmpiW(pStringTable->pSlots[i].pString, lpString))
{
if (lpExtraData)
memcpy(lpExtraData, pStringTable->pSlots[i].pData, dwReserved);
return i + 1;
}
}
}
}
return ~0u;
}
/**************************************************************************
* pSetupStringTableSetExtraData [SETUPAPI.@]
*
* Sets extra data for a given string table entry.
*
* PARAMS
* hStringTable [I] Handle to the string table
* dwId [I] String ID
* lpExtraData [I] Pointer to the extra data
* dwExtraDataSize [I] Size of the extra data
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
pSetupStringTableSetExtraData(HSTRING_TABLE hStringTable,
DWORD dwId,
LPVOID lpExtraData,
DWORD dwExtraDataSize)
{
PSTRING_TABLE pStringTable;
TRACE("%p %x %p %u\n",
hStringTable, dwId, lpExtraData, dwExtraDataSize);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
return FALSE;
}
if (dwId == 0 || dwId > pStringTable->dwMaxSlots)
{
ERR("Invalid Slot id!\n");
return FALSE;
}
if (pStringTable->dwMaxDataSize < dwExtraDataSize)
{
ERR("Data size is too large!\n");
return FALSE;
}
pStringTable->pSlots[dwId - 1].pData = MyMalloc(dwExtraDataSize);
if (pStringTable->pSlots[dwId - 1].pData == NULL)
{
ERR("\n");
return FALSE;
}
memcpy(pStringTable->pSlots[dwId - 1].pData,
lpExtraData,
dwExtraDataSize);
pStringTable->pSlots[dwId - 1].dwSize = dwExtraDataSize;
return TRUE;
}
/**************************************************************************
* pSetupStringTableStringFromId [SETUPAPI.@]
*
* Returns a pointer to a string for the given string ID.
*
* PARAMS
* hStringTable [I] Handle to the string table.
* dwId [I] String ID
*
* RETURNS
* Success: Pointer to the string
* Failure: NULL
*/
LPWSTR WINAPI
pSetupStringTableStringFromId(HSTRING_TABLE hStringTable,
DWORD dwId)
{
PSTRING_TABLE pStringTable;
static WCHAR empty[] = {0};
TRACE("%p %x\n", hStringTable, dwId);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
return NULL;
}
if (dwId == 0 || dwId > pStringTable->dwMaxSlots)
return empty;
return pStringTable->pSlots[dwId - 1].pString;
}
/**************************************************************************
* pSetupStringTableStringFromIdEx [SETUPAPI.@]
*
* Returns a string for the given string ID.
*
* PARAMS
* hStringTable [I] Handle to the string table
* dwId [I] String ID
* lpBuffer [I] Pointer to string buffer
* lpBufferSize [I/O] Pointer to the size of the string buffer
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
pSetupStringTableStringFromIdEx(HSTRING_TABLE hStringTable,
DWORD dwId,
LPWSTR lpBuffer,
LPDWORD lpBufferLength)
{
PSTRING_TABLE pStringTable;
DWORD dwLength;
BOOL bResult = FALSE;
TRACE("%p %x %p %p\n", hStringTable, dwId, lpBuffer, lpBufferLength);
pStringTable = (PSTRING_TABLE)hStringTable;
if (pStringTable == NULL)
{
ERR("Invalid hStringTable!\n");
*lpBufferLength = 0;
return FALSE;
}
if (dwId == 0 || dwId > pStringTable->dwMaxSlots ||
pStringTable->pSlots[dwId - 1].pString == NULL)
{
WARN("Invalid string ID!\n");
*lpBufferLength = 0;
return FALSE;
}
dwLength = (lstrlenW(pStringTable->pSlots[dwId - 1].pString) + 1);
if (dwLength <= *lpBufferLength)
{
lstrcpyW(lpBuffer, pStringTable->pSlots[dwId - 1].pString);
bResult = TRUE;
}
*lpBufferLength = dwLength;
return bResult;
}
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