2 * Setupapi string table functions
4 * Copyright 2005 Eric Kohl
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
33 #include "wine/debug.h"
36 #define TABLE_DEFAULT_SIZE 256
38 WINE_DEFAULT_DEBUG_CHANNEL(setupapi);
40 DECLARE_HANDLE(HSTRING_TABLE);
42 typedef struct _TABLE_SLOT
47 } TABLE_SLOT, *PTABLE_SLOT;
49 typedef struct _STRING_TABLE
55 } STRING_TABLE, *PSTRING_TABLE;
58 /**************************************************************************
59 * StringTableInitialize [SETUPAPI.@]
61 * Creates a new string table and initializes it.
67 * Success: Handle to the string table
71 StringTableInitialize(VOID)
73 PSTRING_TABLE pStringTable;
77 pStringTable = MyMalloc(sizeof(STRING_TABLE));
78 if (pStringTable == NULL)
80 ERR("Invalid hStringTable!\n");
84 memset(pStringTable, 0, sizeof(STRING_TABLE));
86 pStringTable->pSlots = MyMalloc(sizeof(TABLE_SLOT) * TABLE_DEFAULT_SIZE);
87 if (pStringTable->pSlots == NULL)
93 memset(pStringTable->pSlots, 0, sizeof(TABLE_SLOT) * TABLE_DEFAULT_SIZE);
95 pStringTable->dwUsedSlots = 0;
96 pStringTable->dwMaxSlots = TABLE_DEFAULT_SIZE;
97 pStringTable->dwMaxDataSize = 0;
101 return (HSTRING_TABLE)pStringTable;
105 /**************************************************************************
106 * StringTableInitializeEx [SETUPAPI.@]
108 * Creates a new string table and initializes it.
111 * dwMaxExtraDataSize [I] Maximum extra data size
112 * dwReserved [I] Unused
115 * Success: Handle to the string table
119 StringTableInitializeEx(DWORD dwMaxExtraDataSize,
122 PSTRING_TABLE pStringTable;
126 pStringTable = MyMalloc(sizeof(STRING_TABLE));
127 if (pStringTable == NULL) return NULL;
129 memset(pStringTable, 0, sizeof(STRING_TABLE));
131 pStringTable->pSlots = MyMalloc(sizeof(TABLE_SLOT) * TABLE_DEFAULT_SIZE);
132 if (pStringTable->pSlots == NULL)
134 MyFree(pStringTable);
138 memset(pStringTable->pSlots, 0, sizeof(TABLE_SLOT) * TABLE_DEFAULT_SIZE);
140 pStringTable->dwUsedSlots = 0;
141 pStringTable->dwMaxSlots = TABLE_DEFAULT_SIZE;
142 pStringTable->dwMaxDataSize = dwMaxExtraDataSize;
146 return (HSTRING_TABLE)pStringTable;
150 /**************************************************************************
151 * StringTableDestroy [SETUPAPI.@]
153 * Destroys a string table.
156 * hStringTable [I] Handle to the string table to be destroyed
162 StringTableDestroy(HSTRING_TABLE hStringTable)
164 PSTRING_TABLE pStringTable;
167 TRACE("%p\n", hStringTable);
169 pStringTable = (PSTRING_TABLE)hStringTable;
170 if (pStringTable == NULL)
173 if (pStringTable->pSlots != NULL)
175 for (i = 0; i < pStringTable->dwMaxSlots; i++)
177 MyFree(pStringTable->pSlots[i].pString);
178 pStringTable->pSlots[i].pString = NULL;
180 MyFree(pStringTable->pSlots[i].pData);
181 pStringTable->pSlots[i].pData = NULL;
182 pStringTable->pSlots[i].dwSize = 0;
185 MyFree(pStringTable->pSlots);
188 MyFree(pStringTable);
192 /**************************************************************************
193 * StringTableAddStringEx [SETUPAPI.@]
195 * Adds a new string plus extra data to the string table.
198 * hStringTable [I] Handle to the string table
199 * lpString [I] String to be added to the string table
201 * 1: case sensitive compare
202 * lpExtraData [I] Pointer to the extra data
203 * dwExtraDataSize [I] Size of the extra data
210 * If the given string already exists in the string table it will not
211 * be added again. The ID of the existing string will be returned in
215 StringTableAddStringEx(HSTRING_TABLE hStringTable, LPWSTR lpString,
216 DWORD dwFlags, LPVOID lpExtraData, DWORD dwExtraDataSize)
218 PSTRING_TABLE pStringTable;
221 TRACE("%p %s %x %p, %u\n", hStringTable, debugstr_w(lpString), dwFlags,
222 lpExtraData, dwExtraDataSize);
224 pStringTable = (PSTRING_TABLE)hStringTable;
227 ERR("Invalid hStringTable!\n");
231 /* Search for existing string in the string table */
232 for (i = 0; i < pStringTable->dwMaxSlots; i++)
234 if (pStringTable->pSlots[i].pString)
238 if (!lstrcmpW(pStringTable->pSlots[i].pString, lpString))
243 if (!lstrcmpiW(pStringTable->pSlots[i].pString, lpString))
249 /* Check for filled slot table */
250 if (pStringTable->dwUsedSlots == pStringTable->dwMaxSlots)
252 FIXME("Resize the string table!\n");
256 /* Search for an empty slot */
257 for (i = 0; i < pStringTable->dwMaxSlots; i++)
259 if (!pStringTable->pSlots[i].pString)
261 pStringTable->pSlots[i].pString = MyMalloc((lstrlenW(lpString) + 1) * sizeof(WCHAR));
262 if (!pStringTable->pSlots[i].pString)
264 WARN("Couldn't allocate memory for a new string!\n");
267 lstrcpyW(pStringTable->pSlots[i].pString, lpString);
269 pStringTable->pSlots[i].pData = MyMalloc(dwExtraDataSize);
270 if (!pStringTable->pSlots[i].pData)
272 TRACE("Couldn't allocate memory for data!\n");
275 memcpy(pStringTable->pSlots[i].pData, lpExtraData, dwExtraDataSize);
276 pStringTable->pSlots[i].dwSize = dwExtraDataSize;
277 pStringTable->dwUsedSlots++;
281 TRACE("Couldn't find an empty slot!\n");
285 /**************************************************************************
286 * StringTableAddString [SETUPAPI.@]
288 * Adds a new string to the string table.
291 * hStringTable [I] Handle to the string table
292 * lpString [I] String to be added to the string table
294 * 1: case sensitive compare
301 * If the given string already exists in the string table it will not
302 * be added again. The ID of the existing string will be returned in
306 StringTableAddString(HSTRING_TABLE hStringTable, LPWSTR lpString, DWORD dwFlags)
308 return StringTableAddStringEx(hStringTable, lpString, dwFlags, NULL, 0);
312 /**************************************************************************
313 * StringTableDuplicate [SETUPAPI.@]
315 * Duplicates a given string table.
318 * hStringTable [I] Handle to the string table
321 * Success: Handle to the duplicated string table
326 StringTableDuplicate(HSTRING_TABLE hStringTable)
328 PSTRING_TABLE pSourceTable;
329 PSTRING_TABLE pDestinationTable;
333 TRACE("%p\n", hStringTable);
335 pSourceTable = (PSTRING_TABLE)hStringTable;
336 if (pSourceTable == NULL)
338 ERR("Invalid hStringTable!\n");
342 pDestinationTable = MyMalloc(sizeof(STRING_TABLE));
343 if (pDestinationTable == NULL)
345 ERR("Could not allocate a new string table!\n");
349 memset(pDestinationTable, 0, sizeof(STRING_TABLE));
351 pDestinationTable->pSlots = MyMalloc(sizeof(TABLE_SLOT) * pSourceTable->dwMaxSlots);
352 if (pDestinationTable->pSlots == NULL)
354 MyFree(pDestinationTable);
358 memset(pDestinationTable->pSlots, 0, sizeof(TABLE_SLOT) * pSourceTable->dwMaxSlots);
360 pDestinationTable->dwUsedSlots = 0;
361 pDestinationTable->dwMaxSlots = pSourceTable->dwMaxSlots;
363 for (i = 0; i < pSourceTable->dwMaxSlots; i++)
365 if (pSourceTable->pSlots[i].pString != NULL)
367 length = (lstrlenW(pSourceTable->pSlots[i].pString) + 1) * sizeof(WCHAR);
368 pDestinationTable->pSlots[i].pString = MyMalloc(length);
369 if (pDestinationTable->pSlots[i].pString != NULL)
371 memcpy(pDestinationTable->pSlots[i].pString,
372 pSourceTable->pSlots[i].pString,
374 pDestinationTable->dwUsedSlots++;
377 if (pSourceTable->pSlots[i].pData != NULL)
379 length = pSourceTable->pSlots[i].dwSize;
380 pDestinationTable->pSlots[i].pData = MyMalloc(length);
381 if (pDestinationTable->pSlots[i].pData)
383 memcpy(pDestinationTable->pSlots[i].pData,
384 pSourceTable->pSlots[i].pData,
386 pDestinationTable->pSlots[i].dwSize = length;
392 return (HSTRING_TABLE)pDestinationTable;
396 /**************************************************************************
397 * StringTableGetExtraData [SETUPAPI.@]
399 * Retrieves extra data from a given string table entry.
402 * hStringTable [I] Handle to the string table
404 * lpExtraData [I] Pointer a buffer that receives the extra data
405 * dwExtraDataSize [I] Size of the buffer
412 StringTableGetExtraData(HSTRING_TABLE hStringTable,
415 DWORD dwExtraDataSize)
417 PSTRING_TABLE pStringTable;
419 TRACE("%p %x %p %u\n",
420 hStringTable, dwId, lpExtraData, dwExtraDataSize);
422 pStringTable = (PSTRING_TABLE)hStringTable;
423 if (pStringTable == NULL)
425 ERR("Invalid hStringTable!\n");
429 if (dwId == 0 || dwId > pStringTable->dwMaxSlots)
431 ERR("Invalid Slot id!\n");
435 if (pStringTable->pSlots[dwId - 1].dwSize > dwExtraDataSize)
437 ERR("Data size is too large!\n");
442 pStringTable->pSlots[dwId - 1].pData,
449 /**************************************************************************
450 * StringTableLookUpStringEx [SETUPAPI.@]
452 * Searches a string table and extra data for a given string.
455 * hStringTable [I] Handle to the string table
456 * lpString [I] String to be searched for
458 * 1: case sensitive compare
459 * lpExtraData [O] Pointer to the buffer that receives the extra data
460 * dwReserved [I/O] Unused
467 StringTableLookUpStringEx(HSTRING_TABLE hStringTable,
473 PSTRING_TABLE pStringTable;
476 TRACE("%p %s %x %p, %x\n", hStringTable, debugstr_w(lpString), dwFlags,
477 lpExtraData, dwReserved);
479 pStringTable = (PSTRING_TABLE)hStringTable;
480 if (pStringTable == NULL)
482 ERR("Invalid hStringTable!\n");
486 /* Search for existing string in the string table */
487 for (i = 0; i < pStringTable->dwMaxSlots; i++)
489 if (pStringTable->pSlots[i].pString != NULL)
493 if (!lstrcmpW(pStringTable->pSlots[i].pString, lpString))
496 memcpy(lpExtraData, pStringTable->pSlots[i].pData, dwReserved);
502 if (!lstrcmpiW(pStringTable->pSlots[i].pString, lpString))
505 memcpy(lpExtraData, pStringTable->pSlots[i].pData, dwReserved);
515 /**************************************************************************
516 * StringTableLookUpString [SETUPAPI.@]
518 * Searches a string table for a given string.
521 * hStringTable [I] Handle to the string table
522 * lpString [I] String to be searched for
524 * 1: case sensitive compare
531 StringTableLookUpString(HSTRING_TABLE hStringTable,
535 return StringTableLookUpStringEx(hStringTable, lpString, dwFlags, NULL, 0);
539 /**************************************************************************
540 * StringTableSetExtraData [SETUPAPI.@]
542 * Sets extra data for a given string table entry.
545 * hStringTable [I] Handle to the string table
547 * lpExtraData [I] Pointer to the extra data
548 * dwExtraDataSize [I] Size of the extra data
555 StringTableSetExtraData(HSTRING_TABLE hStringTable,
558 DWORD dwExtraDataSize)
560 PSTRING_TABLE pStringTable;
562 TRACE("%p %x %p %u\n",
563 hStringTable, dwId, lpExtraData, dwExtraDataSize);
565 pStringTable = (PSTRING_TABLE)hStringTable;
566 if (pStringTable == NULL)
568 ERR("Invalid hStringTable!\n");
572 if (dwId == 0 || dwId > pStringTable->dwMaxSlots)
574 ERR("Invalid Slot id!\n");
578 if (pStringTable->dwMaxDataSize < dwExtraDataSize)
580 ERR("Data size is too large!\n");
584 pStringTable->pSlots[dwId - 1].pData = MyMalloc(dwExtraDataSize);
585 if (pStringTable->pSlots[dwId - 1].pData == NULL)
591 memcpy(pStringTable->pSlots[dwId - 1].pData,
594 pStringTable->pSlots[dwId - 1].dwSize = dwExtraDataSize;
600 /**************************************************************************
601 * StringTableStringFromId [SETUPAPI.@]
603 * Returns a pointer to a string for the given string ID.
606 * hStringTable [I] Handle to the string table.
610 * Success: Pointer to the string
614 StringTableStringFromId(HSTRING_TABLE hStringTable,
617 PSTRING_TABLE pStringTable;
618 static WCHAR empty[] = {0};
620 TRACE("%p %x\n", hStringTable, dwId);
622 pStringTable = (PSTRING_TABLE)hStringTable;
623 if (pStringTable == NULL)
625 ERR("Invalid hStringTable!\n");
629 if (dwId == 0 || dwId > pStringTable->dwMaxSlots)
632 return pStringTable->pSlots[dwId - 1].pString;
636 /**************************************************************************
637 * StringTableStringFromIdEx [SETUPAPI.@]
639 * Returns a string for the given string ID.
642 * hStringTable [I] Handle to the string table
644 * lpBuffer [I] Pointer to string buffer
645 * lpBufferSize [I/O] Pointer to the size of the string buffer
652 StringTableStringFromIdEx(HSTRING_TABLE hStringTable,
655 LPDWORD lpBufferLength)
657 PSTRING_TABLE pStringTable;
659 BOOL bResult = FALSE;
661 TRACE("%p %x %p %p\n", hStringTable, dwId, lpBuffer, lpBufferLength);
663 pStringTable = (PSTRING_TABLE)hStringTable;
664 if (pStringTable == NULL)
666 ERR("Invalid hStringTable!\n");
671 if (dwId == 0 || dwId > pStringTable->dwMaxSlots ||
672 pStringTable->pSlots[dwId - 1].pString == NULL)
674 WARN("Invalid string ID!\n");
679 dwLength = (lstrlenW(pStringTable->pSlots[dwId - 1].pString) + 1) * sizeof(WCHAR);
680 if (dwLength <= *lpBufferLength)
682 lstrcpyW(lpBuffer, pStringTable->pSlots[dwId - 1].pString);
686 *lpBufferLength = dwLength;
692 /**************************************************************************
693 * StringTableTrim [SETUPAPI.@]
698 * hStringTable [I] Handle to the string table
704 StringTableTrim(HSTRING_TABLE hStringTable)
706 FIXME("%p\n", hStringTable);