crypto/external/bsd/openssl/dist/apps/winrand.c

   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 /*-
  57  * Usage: winrand [filename]
  58  *
  59  * Collects entropy from mouse movements and other events and writes
  60  * random data to filename or .rnd
  61  */
  62
  63 #include <windows.h>
  64 #include <openssl/opensslv.h>
  65 #include <openssl/rand.h>
  66
  67 LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
  68 const char *filename;
  69
  70 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
  71                    PSTR cmdline, int iCmdShow)
  72 {
  73     static char appname[] = "OpenSSL";
  74     HWND hwnd;
  75     MSG msg;
  76     WNDCLASSEX wndclass;
  77     char buffer[200];
  78
  79     if (cmdline[0] == '\0')
  80         filename = RAND_file_name(buffer, sizeof buffer);
  81     else
  82         filename = cmdline;
  83
  84     RAND_load_file(filename, -1);
  85
  86     wndclass.cbSize = sizeof(wndclass);
  87     wndclass.style = CS_HREDRAW | CS_VREDRAW;
  88     wndclass.lpfnWndProc = WndProc;
  89     wndclass.cbClsExtra = 0;
  90     wndclass.cbWndExtra = 0;
  91     wndclass.hInstance = hInstance;
  92     wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
  93     wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
  94     wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
  95     wndclass.lpszMenuName = NULL;
  96     wndclass.lpszClassName = appname;
  97     wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
  98     RegisterClassEx(&wndclass);
  99
 100     hwnd = CreateWindow(appname, OPENSSL_VERSION_TEXT,
 101                         WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
 102                         CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance,
 103                         NULL);
 104
 105     ShowWindow(hwnd, iCmdShow);
 106     UpdateWindow(hwnd);
 107
 108     while (GetMessage(&msg, NULL, 0, 0)) {
 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     case WM_PAINT:
 125         hdc = BeginPaint(hwnd, &ps);
 126         GetClientRect(hwnd, &rect);
 127         DrawText(hdc, "Seeding the PRNG. Please move the mouse!", -1,
 128                  &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
 129         EndPaint(hwnd, &ps);
 130         return 0;
 131
 132     case WM_DESTROY:
 133         PostQuitMessage(0);
 134         return 0;
 135     }
 136
 137     if (RAND_event(iMsg, wParam, lParam) == 1 && seeded == 0) {
 138         seeded = 1;
 139         if (RAND_write_file(filename) <= 0)
 140             MessageBox(hwnd, "Couldn't write random file!",
 141                        "OpenSSL", MB_OK | MB_ICONERROR);
 142         PostQuitMessage(0);
 143     }
 144
 145     return DefWindowProc(hwnd, iMsg, wParam, lParam);
 146 }