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Annotation of truecrypt/common/dictionary.c, revision 1.1.1.3

1.1       root        1: /* 
1.1.1.3 ! root        2: Copyright (c) 2004-2006 TrueCrypt Foundation. All rights reserved. 
1.1       root        3: 
                      4: Covered by TrueCrypt License 2.0 the full text of which is contained in the file
                      5: License.txt included in TrueCrypt binary and source code distribution archives. 
                      6: */
                      7: 
                      8: #include "../Common/Dictionary.h"
                      9: #include <windows.h>
                     10: 
1.1.1.2   root       11: static DictionaryEntry StringDictionary[4096];
1.1       root       12: static int LastDictionaryEntry = -1;
                     13: static int MaxDictionaryEntry = sizeof (StringDictionary) / sizeof (DictionaryEntry) - 1;
                     14: 
                     15: static void *DataPool = NULL;
                     16: static size_t DataPoolSize = 0;
                     17: 
                     18: int AddDictionaryEntry (char *key, int intKey, void *value)
                     19: {
                     20:        int i;
                     21:        if (LastDictionaryEntry >= MaxDictionaryEntry) return -1;
                     22: 
                     23:        // Replace identical key if it exists
                     24:        for (i = 0; i <= LastDictionaryEntry; i++)
                     25:        {
                     26:                if ((StringDictionary[i].Key != NULL
                     27:                        && key != NULL
                     28:                        && strcmp (StringDictionary[i].Key, key) == 0)
                     29:                        || (key == NULL && StringDictionary[i].IntKey == intKey))
                     30:                {
                     31:                        StringDictionary[i].Key = key;
                     32:                        StringDictionary[i].IntKey = intKey;
                     33:                        StringDictionary[i].Value = value;
                     34: 
                     35:                        return i;
                     36:                }
                     37:        }
                     38: 
                     39:        LastDictionaryEntry++;
                     40: 
                     41:        StringDictionary[LastDictionaryEntry].Key = key;
                     42:        StringDictionary[LastDictionaryEntry].IntKey = intKey;
                     43:        StringDictionary[LastDictionaryEntry].Value = value;
                     44: 
                     45:        return LastDictionaryEntry;
                     46: }
                     47: 
                     48: 
                     49: void *GetDictionaryValue (char *key)
                     50: {
                     51:        int i;
                     52:        for (i = 0; i <= LastDictionaryEntry; i++)
                     53:        {
                     54:                if (StringDictionary[i].Key != NULL
                     55:                        && strcmp (StringDictionary[i].Key, key) == 0)
                     56:                        return StringDictionary[i].Value;
                     57:        }
                     58: 
                     59:        return NULL;
                     60: }
                     61: 
                     62: 
                     63: void *GetDictionaryValueByInt (int intKey)
                     64: {
                     65:        int i;
                     66:        for (i = 0; i <= LastDictionaryEntry; i++)
                     67:        {
                     68:                if (StringDictionary[i].IntKey == intKey)
                     69:                        return StringDictionary[i].Value;
                     70:        }
                     71: 
                     72:        return NULL;
                     73: }
                     74: 
                     75: 
                     76: void *AddPoolData (void *data, size_t dataSize)
                     77: {
                     78: 
                     79:        if (DataPoolSize + dataSize > DATA_POOL_CAPACITY) return NULL;
                     80: 
                     81:        if (DataPool == NULL)
                     82:        {
                     83:                DataPool = malloc (DATA_POOL_CAPACITY);
                     84:                if (DataPool == NULL) return NULL;
                     85:        }
                     86: 
                     87:        memcpy ((BYTE *)DataPool + DataPoolSize, data, dataSize);
                     88: 
                     89:        //if (wcschr((WCHAR *)((BYTE *)DataPool + DataPoolSize), '%') == 0)
                     90:        //      _wcsupr ((WCHAR *)((BYTE *)DataPool + DataPoolSize));
                     91:        //else
                     92:        //      ((WCHAR *)((BYTE *)DataPool + DataPoolSize))[0] = L'*';
                     93: 
1.1.1.2   root       94:        // Ensure 32-bit alignment for next entries
                     95:        dataSize = (dataSize + 3) & (~(size_t)3);
                     96: 
1.1       root       97:        DataPoolSize += dataSize;
                     98:        return (BYTE *)DataPool + DataPoolSize - dataSize;
                     99: }
                    100: 
                    101: 
                    102: void ClearDictionaryPool ()
                    103: {
                    104:        DataPoolSize = 0;
                    105:        LastDictionaryEntry = -1;
                    106: }

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