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Annotation of truecrypt/common/dictionary.c, revision 1.1.1.7

1.1.1.5   root        1: /*
1.1.1.7 ! root        2:  Copyright (c) 2005 TrueCrypt Foundation. All rights reserved.
1.1       root        3: 
1.1.1.7 ! root        4:  Governed by the TrueCrypt License 2.4 the full text of which is contained
1.1.1.5   root        5:  in the file License.txt included in TrueCrypt binary and source code
                      6:  distribution packages.
1.1       root        7: */
                      8: 
                      9: #include "../Common/Dictionary.h"
                     10: #include <windows.h>
                     11: 
1.1.1.2   root       12: static DictionaryEntry StringDictionary[4096];
1.1       root       13: static int LastDictionaryEntry = -1;
                     14: static int MaxDictionaryEntry = sizeof (StringDictionary) / sizeof (DictionaryEntry) - 1;
                     15: 
                     16: static void *DataPool = NULL;
                     17: static size_t DataPoolSize = 0;
                     18: 
                     19: int AddDictionaryEntry (char *key, int intKey, void *value)
                     20: {
                     21:        int i;
                     22:        if (LastDictionaryEntry >= MaxDictionaryEntry) return -1;
                     23: 
                     24:        // Replace identical key if it exists
                     25:        for (i = 0; i <= LastDictionaryEntry; i++)
                     26:        {
                     27:                if ((StringDictionary[i].Key != NULL
                     28:                        && key != NULL
                     29:                        && strcmp (StringDictionary[i].Key, key) == 0)
                     30:                        || (key == NULL && StringDictionary[i].IntKey == intKey))
                     31:                {
                     32:                        StringDictionary[i].Key = key;
                     33:                        StringDictionary[i].IntKey = intKey;
                     34:                        StringDictionary[i].Value = value;
                     35: 
                     36:                        return i;
                     37:                }
                     38:        }
                     39: 
                     40:        LastDictionaryEntry++;
                     41: 
                     42:        StringDictionary[LastDictionaryEntry].Key = key;
                     43:        StringDictionary[LastDictionaryEntry].IntKey = intKey;
                     44:        StringDictionary[LastDictionaryEntry].Value = value;
                     45: 
                     46:        return LastDictionaryEntry;
                     47: }
                     48: 
                     49: 
                     50: void *GetDictionaryValue (char *key)
                     51: {
                     52:        int i;
                     53:        for (i = 0; i <= LastDictionaryEntry; i++)
                     54:        {
                     55:                if (StringDictionary[i].Key != NULL
                     56:                        && strcmp (StringDictionary[i].Key, key) == 0)
                     57:                        return StringDictionary[i].Value;
                     58:        }
                     59: 
                     60:        return NULL;
                     61: }
                     62: 
                     63: 
                     64: void *GetDictionaryValueByInt (int intKey)
                     65: {
                     66:        int i;
                     67:        for (i = 0; i <= LastDictionaryEntry; i++)
                     68:        {
                     69:                if (StringDictionary[i].IntKey == intKey)
                     70:                        return StringDictionary[i].Value;
                     71:        }
                     72: 
                     73:        return NULL;
                     74: }
                     75: 
                     76: 
                     77: void *AddPoolData (void *data, size_t dataSize)
                     78: {
                     79: 
                     80:        if (DataPoolSize + dataSize > DATA_POOL_CAPACITY) return NULL;
                     81: 
                     82:        if (DataPool == NULL)
                     83:        {
                     84:                DataPool = malloc (DATA_POOL_CAPACITY);
                     85:                if (DataPool == NULL) return NULL;
                     86:        }
                     87: 
                     88:        memcpy ((BYTE *)DataPool + DataPoolSize, data, dataSize);
                     89: 
                     90:        //if (wcschr((WCHAR *)((BYTE *)DataPool + DataPoolSize), '%') == 0)
                     91:        //      _wcsupr ((WCHAR *)((BYTE *)DataPool + DataPoolSize));
                     92:        //else
                     93:        //      ((WCHAR *)((BYTE *)DataPool + DataPoolSize))[0] = L'*';
                     94: 
1.1.1.2   root       95:        // Ensure 32-bit alignment for next entries
                     96:        dataSize = (dataSize + 3) & (~(size_t)3);
                     97: 
1.1       root       98:        DataPoolSize += dataSize;
                     99:        return (BYTE *)DataPool + DataPoolSize - dataSize;
                    100: }
                    101: 
                    102: 
                    103: void ClearDictionaryPool ()
                    104: {
                    105:        DataPoolSize = 0;
                    106:        LastDictionaryEntry = -1;
                    107: }

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