The Tor Browser / file comparison
comparison: other-licenses/nsis/Contrib/CityHash/CityHash.cpp
other-licenses/nsis/Contrib/CityHash/CityHash.cpp
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
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| -1:000000000000 | 0:d871885228f3 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "CityHash.h" | |
| 7 #include "cityhash/city.h" | |
| 8 #include <tchar.h> | |
| 9 | |
| 10 #define MAX_STRLEN 1024 | |
| 11 | |
| 12 typedef struct _stack_t { | |
| 13 struct _stack_t *next; | |
| 14 TCHAR text[MAX_STRLEN]; | |
| 15 } stack_t; | |
| 16 | |
| 17 stack_t **g_stacktop; | |
| 18 char *g_variables; | |
| 19 | |
| 20 BOOL APIENTRY DllMain(HMODULE hModule, | |
| 21 DWORD ul_reason_for_call, | |
| 22 LPVOID lpReserved) | |
| 23 { | |
| 24 switch (ul_reason_for_call) | |
| 25 { | |
| 26 case DLL_PROCESS_ATTACH: | |
| 27 case DLL_THREAD_ATTACH: | |
| 28 case DLL_THREAD_DETACH: | |
| 29 case DLL_PROCESS_DETACH: | |
| 30 break; | |
| 31 } | |
| 32 return TRUE; | |
| 33 } | |
| 34 | |
| 35 bool popString(TCHAR *result) | |
| 36 { | |
| 37 stack_t *th; | |
| 38 if (!g_stacktop || !*g_stacktop) return false; | |
| 39 th = (*g_stacktop); | |
| 40 lstrcpyn(result, th->text, MAX_STRLEN); | |
| 41 *g_stacktop = th->next; | |
| 42 GlobalFree((HGLOBAL)th); | |
| 43 return true; | |
| 44 } | |
| 45 | |
| 46 void pushString(const TCHAR *str) | |
| 47 { | |
| 48 stack_t *th; | |
| 49 int strLen = wcslen(str)+1; | |
| 50 if (!g_stacktop) return; | |
| 51 th = (stack_t*)GlobalAlloc(GPTR, sizeof(stack_t) + (MAX_STRLEN*sizeof(TCHAR))); | |
| 52 lstrcpyn(th->text, str, strLen); | |
| 53 th->next = *g_stacktop; | |
| 54 *g_stacktop = th; | |
| 55 } | |
| 56 | |
| 57 extern "C" | |
| 58 { | |
| 59 | |
| 60 void GetCityHash64(HWND hwndParent, int string_size, char *variables, stack_t **stacktop) | |
| 61 { | |
| 62 TCHAR hashString[MAX_STRLEN]; | |
| 63 TCHAR hexResult[18] = { _T('\0') }; | |
| 64 | |
| 65 g_stacktop = stacktop; | |
| 66 g_variables = variables; | |
| 67 | |
| 68 memset(hashString, 0, sizeof(hashString)); | |
| 69 memset(hexResult, 0, sizeof(hexResult)); | |
| 70 | |
| 71 if (!popString(hashString)) { | |
| 72 pushString(L"error"); | |
| 73 return; | |
| 74 } | |
| 75 uint64 result = CityHash64((const char*)&hashString[0], wcslen(hashString)*sizeof(TCHAR)); | |
| 76 // If the hash happens to work out to less than 16 hash digits it will just | |
| 77 // use less of the buffer. | |
| 78 swprintf(hexResult, L"%I64X", result); | |
| 79 pushString(hexResult); | |
| 80 } | |
| 81 | |
| 82 } |
