Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* apps/winrand.c */ |
| 2 | /* ==================================================================== |
| 3 | * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in |
| 14 | * the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * |
| 17 | * 3. All advertising materials mentioning features or use of this |
| 18 | * software must display the following acknowledgment: |
| 19 | * "This product includes software developed by the OpenSSL Project |
| 20 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
| 21 | * |
| 22 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 23 | * endorse or promote products derived from this software without |
| 24 | * prior written permission. For written permission, please contact |
| 25 | * openssl-core@openssl.org. |
| 26 | * |
| 27 | * 5. Products derived from this software may not be called "OpenSSL" |
| 28 | * nor may "OpenSSL" appear in their names without prior written |
| 29 | * permission of the OpenSSL Project. |
| 30 | * |
| 31 | * 6. Redistributions of any form whatsoever must retain the following |
| 32 | * acknowledgment: |
| 33 | * "This product includes software developed by the OpenSSL Project |
| 34 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
| 35 | * |
| 36 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 37 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 38 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 39 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 40 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 42 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 43 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 44 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 45 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 46 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 47 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 48 | * ==================================================================== |
| 49 | * |
| 50 | * This product includes cryptographic software written by Eric Young |
| 51 | * (eay@cryptsoft.com). This product includes software written by Tim |
| 52 | * Hudson (tjh@cryptsoft.com). |
| 53 | * |
| 54 | */ |
| 55 | |
| 56 | /* Usage: winrand [filename] |
| 57 | * |
| 58 | * Collects entropy from mouse movements and other events and writes |
| 59 | * random data to filename or .rnd |
| 60 | */ |
| 61 | |
| 62 | #include <windows.h> |
| 63 | #include <openssl/opensslv.h> |
| 64 | #include <openssl/rand.h> |
| 65 | |
| 66 | LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); |
| 67 | const char *filename; |
| 68 | |
| 69 | int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, |
| 70 | PSTR cmdline, int iCmdShow) |
| 71 | { |
| 72 | static char appname[] = "OpenSSL"; |
| 73 | HWND hwnd; |
| 74 | MSG msg; |
| 75 | WNDCLASSEX wndclass; |
| 76 | char buffer[200]; |
| 77 | |
| 78 | if (cmdline[0] == '\0') |
| 79 | filename = RAND_file_name(buffer, sizeof buffer); |
| 80 | else |
| 81 | filename = cmdline; |
| 82 | |
| 83 | RAND_load_file(filename, -1); |
| 84 | |
| 85 | wndclass.cbSize = sizeof(wndclass); |
| 86 | wndclass.style = CS_HREDRAW | CS_VREDRAW; |
| 87 | wndclass.lpfnWndProc = WndProc; |
| 88 | wndclass.cbClsExtra = 0; |
| 89 | wndclass.cbWndExtra = 0; |
| 90 | wndclass.hInstance = hInstance; |
| 91 | wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION); |
| 92 | wndclass.hCursor = LoadCursor(NULL, IDC_ARROW); |
| 93 | wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH); |
| 94 | wndclass.lpszMenuName = NULL; |
| 95 | wndclass.lpszClassName = appname; |
| 96 | wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION); |
| 97 | RegisterClassEx(&wndclass); |
| 98 | |
| 99 | hwnd = CreateWindow(appname, OPENSSL_VERSION_TEXT, |
| 100 | WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, |
| 101 | CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); |
| 102 | |
| 103 | ShowWindow(hwnd, iCmdShow); |
| 104 | UpdateWindow(hwnd); |
| 105 | |
| 106 | |
| 107 | while (GetMessage(&msg, NULL, 0, 0)) |
| 108 | { |
| 109 | TranslateMessage(&msg); |
| 110 | DispatchMessage(&msg); |
| 111 | } |
| 112 | |
| 113 | return msg.wParam; |
| 114 | } |
| 115 | |
| 116 | LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam) |
| 117 | { |
| 118 | HDC hdc; |
| 119 | PAINTSTRUCT ps; |
| 120 | RECT rect; |
| 121 | static int seeded = 0; |
| 122 | |
| 123 | switch (iMsg) |
| 124 | { |
| 125 | case WM_PAINT: |
| 126 | hdc = BeginPaint(hwnd, &ps); |
| 127 | GetClientRect(hwnd, &rect); |
| 128 | DrawText(hdc, "Seeding the PRNG. Please move the mouse!", -1, |
| 129 | &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER); |
| 130 | EndPaint(hwnd, &ps); |
| 131 | return 0; |
| 132 | |
| 133 | case WM_DESTROY: |
| 134 | PostQuitMessage(0); |
| 135 | return 0; |
| 136 | } |
| 137 | |
| 138 | if (RAND_event(iMsg, wParam, lParam) == 1 && seeded == 0) |
| 139 | { |
| 140 | seeded = 1; |
| 141 | if (RAND_write_file(filename) <= 0) |
| 142 | MessageBox(hwnd, "Couldn't write random file!", |
| 143 | "OpenSSL", MB_OK | MB_ICONERROR); |
| 144 | PostQuitMessage(0); |
| 145 | } |
| 146 | |
| 147 | return DefWindowProc(hwnd, iMsg, wParam, lParam); |
| 148 | } |