【菜】一个检查文件MD5的小工具

 

学了几个星期的SDK。。。。小菜写了个小工具。。。。。高手可以忽略

Box.cpp

#include <windows.h>
#include <stdio.h>
#include "resource.h"

LRESULT CALLBACK WndProc   (HWND, UINT, WPARAM, LPARAM) ;
BOOL    CALLBACK MainDlg   (HWND, UINT, WPARAM, LPARAM) ;
int     MD5_CAL(char * filename);
void    EditPrintf (HWND hwndEdit, TCHAR * szFormat, ...) ;

HINSTANCE hInst ;
HWND      hwndModeless ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                    PSTR szCmdLine, int iCmdShow)

{
     static TCHAR szAppName[] = TEXT ("Box") ;
     HWND         hwnd ;
     MSG          msg ;
     RECT         rect ;
     WNDCLASS     wndclass ;

     hInst = hInstance ;

     wndclass.style         = 0 ;
     wndclass.lpfnWndProc   = WndProc ;
     wndclass.cbClsExtra    = 0 ;
     wndclass.cbWndExtra    = 0 ;
     wndclass.hInstance     = hInstance ;
     wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
     wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
     wndclass.hbrBackground = NULL ;
     wndclass.lpszMenuName  = NULL ;
     wndclass.lpszClassName = szAppName ;

     if (!RegisterClass (&wndclass))
     {
          MessageBox (NULL, TEXT ("This program requires Windows NT!"),
                      szAppName, MB_ICONERROR) ;
          return 0 ;
     }
    
     hwnd = CreateWindow (szAppName, TEXT ("查查文件MD5"),
                          WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU |
                               WS_BORDER | WS_MINIMIZEBOX,
                          CW_USEDEFAULT, CW_USEDEFAULT,
                          CW_USEDEFAULT, CW_USEDEFAULT,
                          NULL, NULL, hInstance, NULL) ;

     hwndModeless = CreateDialog (hInstance, szAppName, hwnd, MainDlg) ;

     GetWindowRect (hwndModeless, &rect) ;
     AdjustWindowRect (&rect, WS_CAPTION | WS_BORDER, FALSE) ;

     SetWindowPos (hwnd, NULL, 0, 0, rect.right - rect.left,
                   rect.bottom - rect.top, SWP_NOMOVE) ;

     ShowWindow (hwndModeless, SW_SHOW) ;    
     ShowWindow (hwnd, iCmdShow) ;
     UpdateWindow (hwnd) ;

     while (GetMessage (&msg, NULL, 0, 0))
     {
          if (hwndModeless == 0 || !IsDialogMessage (hwndModeless, &msg))
          {
               TranslateMessage (&msg) ;
               DispatchMessage (&msg) ;
          }
     }
     return msg.wParam ;
}

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
     switch (message)
     {
     case WM_SETFOCUS:
          SetFocus (hwndModeless) ;
          return 0 ;

     case WM_DESTROY:
          PostQuitMessage (0) ;
          return 0 ;
     }
     return DefWindowProc (hwnd, message, wParam, lParam) ;
}

BOOL CALLBACK MainDlg (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
     static HWND   hwndEdit, hwndScan;
     OPENFILENAME  NewFile;
     static char   szName[1024];
     char     *    FilterFile = "All File(*.*)\0*.*\0", Md5[32];
  HANDLE        hFile;
  FILE     *    fpfile;

     switch (message)
     {
     case WM_INITDIALOG:
          hwndEdit = GetDlgItem (hwnd, IDC_EDIT) ;
    hwndScan = GetDlgItem (hwnd, IDC_SCAN) ;
    EditPrintf (hwndEdit, TEXT ("请导入文件.....\n"));
          return TRUE ;

     case WM_COMMAND:
          switch (LOWORD (wParam))
          {
    case IDC_QUIT:
               DestroyWindow (GetParent (hwnd)) ;
               return TRUE ;
         
          case IDC_PUTFILE:
      RtlZeroMemory(szName,sizeof(szName));
               RtlZeroMemory(&NewFile,sizeof(NewFile));
               NewFile.lStructSize=sizeof(NewFile);
               NewFile.hwndOwner = hwnd;
               NewFile.lpstrFile = szName;
               NewFile.lpstrFilter = FilterFile;
               NewFile.nMaxFile = sizeof(szName);
               NewFile.Flags = (OFN_FILEMUSTEXIST|OFN_PATHMUSTEXIST);
               if(GetOpenFileName(&NewFile))
      {
       EditPrintf (hwndEdit, TEXT ("您选择了 %s\n"),
                szName);
       EnableWindow (hwndScan, TRUE);
      }
               return TRUE ;

          case IDC_SCAN:
      EnableWindow (hwndScan, FALSE);
      hFile = CreateFile(szName,
           GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
        NULL, NULL);
      EditPrintf (hwndEdit, TEXT ("文件大小FileSize:%dByte\n"),
               GetFileSize(hFile, NULL));
      //MD5
      if (MD5_CAL (szName) == 0)
      {
       EditPrintf (hwndEdit, TEXT ("\n GetMd5Error!"));
      }
      else if (MD5_CAL (szName) == 1)
      {
       fpfile = fopen ("Filemd5.txt", "r");
       fseek (fpfile, 9, SEEK_SET);
       fgets(Md5, 33, fpfile);
                   EditPrintf (hwndEdit, TEXT ("该文件的MD5值为:%s\n"), Md5);
       EditPrintf (hwndEdit,
        TEXT ("将%s文件的MD5值保存在Filemd5.txt上\n\n"), szName);
      }
               return TRUE ;
          }
  }
   return FALSE;
}

void EditPrintf (HWND hwndEdit, TCHAR * szFormat, ...)
{
     TCHAR   szBuffer [1024] ;
     va_list pArgList ;

     va_start (pArgList, szFormat) ;
     wvsprintf (szBuffer, szFormat, pArgList) ;
     va_end (pArgList) ;

     SendMessage (hwndEdit, EM_SETSEL, (WPARAM) -1, (LPARAM) -1) ;
     SendMessage (hwndEdit, EM_REPLACESEL, FALSE, (LPARAM) szBuffer) ;
     SendMessage (hwndEdit, EM_SCROLLCARET, 0, 0) ;
}

 

md5.cpp（MD5算法源码是网上找的）

#include<stdio.h>
#include<string.h>
#include<stdlib.h>

#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
#define H(x, y, z) ((x) ^ (y) ^ (z))
#define I(x, y, z) ((y) ^ ((x) | (~z)))

#define RL(x, y) (((x) << (y)) | ((x) >> (32 - (y))))  //x向左循环移y位

#define PP(x) (x<<24)|((x<<8)&0xff0000)|((x>>8)&0xff00)|(x>>24)  //将x高低位互换,例如PP(aabbccdd)=ddccbbaa

#define FF(a, b, c, d, x, s, ac) a = b + (RL((a + F(b,c,d) + x + ac),s))
#define GG(a, b, c, d, x, s, ac) a = b + (RL((a + G(b,c,d) + x + ac),s))
#define HH(a, b, c, d, x, s, ac) a = b + (RL((a + H(b,c,d) + x + ac),s))
#define II(a, b, c, d, x, s, ac) a = b + (RL((a + I(b,c,d) + x + ac),s))

unsigned A,B,C,D,a,b,c,d,i,len,flen[2],x[16];   //i临时变量,len文件长,flen[2]为64位二进制表示的文件初始长度
char filename[200];   //文件名
FILE *fp;

void md5(){                 //MD5核心算法,供64轮

  a=A,b=B,c=C,d=D;
  /**//* Round 1 */
  FF (a, b, c, d, x[ 0],  7, 0xd76aa478); /**//* 1 */
  FF (d, a, b, c, x[ 1], 12, 0xe8c7b756); /**//* 2 */
  FF (c, d, a, b, x[ 2], 17, 0x242070db); /**//* 3 */
  FF (b, c, d, a, x[ 3], 22, 0xc1bdceee); /**//* 4 */
  FF (a, b, c, d, x[ 4],  7, 0xf57c0faf); /**//* 5 */
  FF (d, a, b, c, x[ 5], 12, 0x4787c62a); /**//* 6 */
  FF (c, d, a, b, x[ 6], 17, 0xa8304613); /**//* 7 */
  FF (b, c, d, a, x[ 7], 22, 0xfd469501); /**//* 8 */
  FF (a, b, c, d, x[ 8],  7, 0x698098d8); /**//* 9 */
  FF (d, a, b, c, x[ 9], 12, 0x8b44f7af); /**//* 10 */
  FF (c, d, a, b, x[10], 17, 0xffff5bb1); /**//* 11 */
  FF (b, c, d, a, x[11], 22, 0x895cd7be); /**//* 12 */
  FF (a, b, c, d, x[12],  7, 0x6b901122); /**//* 13 */
  FF (d, a, b, c, x[13], 12, 0xfd987193); /**//* 14 */
  FF (c, d, a, b, x[14], 17, 0xa679438e); /**//* 15 */
  FF (b, c, d, a, x[15], 22, 0x49b40821); /**//* 16 */

/**//* Round 2 */
  GG (a, b, c, d, x[ 1],  5, 0xf61e2562); /**//* 17 */
  GG (d, a, b, c, x[ 6],  9, 0xc040b340); /**//* 18 */
  GG (c, d, a, b, x[11], 14, 0x265e5a51); /**//* 19 */
  GG (b, c, d, a, x[ 0], 20, 0xe9b6c7aa); /**//* 20 */
  GG (a, b, c, d, x[ 5],  5, 0xd62f105d); /**//* 21 */
  GG (d, a, b, c, x[10],  9, 0x02441453); /**//* 22 */
  GG (c, d, a, b, x[15], 14, 0xd8a1e681); /**//* 23 */
  GG (b, c, d, a, x[ 4], 20, 0xe7d3fbc8); /**//* 24 */
  GG (a, b, c, d, x[ 9],  5, 0x21e1cde6); /**//* 25 */
  GG (d, a, b, c, x[14],  9, 0xc33707d6); /**//* 26 */
  GG (c, d, a, b, x[ 3], 14, 0xf4d50d87); /**//* 27 */
  GG (b, c, d, a, x[ 8], 20, 0x455a14ed); /**//* 28 */
  GG (a, b, c, d, x[13],  5, 0xa9e3e905); /**//* 29 */
  GG (d, a, b, c, x[ 2],  9, 0xfcefa3f8); /**//* 30 */
  GG (c, d, a, b, x[ 7], 14, 0x676f02d9); /**//* 31 */
  GG (b, c, d, a, x[12], 20, 0x8d2a4c8a); /**//* 32 */

  /**//* Round 3 */
  HH (a, b, c, d, x[ 5],  4, 0xfffa3942); /**//* 33 */
  HH (d, a, b, c, x[ 8], 11, 0x8771f681); /**//* 34 */
  HH (c, d, a, b, x[11], 16, 0x6d9d6122); /**//* 35 */
  HH (b, c, d, a, x[14], 23, 0xfde5380c); /**//* 36 */
  HH (a, b, c, d, x[ 1],  4, 0xa4beea44); /**//* 37 */
  HH (d, a, b, c, x[ 4], 11, 0x4bdecfa9); /**//* 38 */
  HH (c, d, a, b, x[ 7], 16, 0xf6bb4b60); /**//* 39 */
  HH (b, c, d, a, x[10], 23, 0xbebfbc70); /**//* 40 */
  HH (a, b, c, d, x[13],  4, 0x289b7ec6); /**//* 41 */
  HH (d, a, b, c, x[ 0], 11, 0xeaa127fa); /**//* 42 */
  HH (c, d, a, b, x[ 3], 16, 0xd4ef3085); /**//* 43 */
  HH (b, c, d, a, x[ 6], 23, 0x04881d05); /**//* 44 */
  HH (a, b, c, d, x[ 9],  4, 0xd9d4d039); /**//* 45 */
  HH (d, a, b, c, x[12], 11, 0xe6db99e5); /**//* 46 */
  HH (c, d, a, b, x[15], 16, 0x1fa27cf8); /**//* 47 */
  HH (b, c, d, a, x[ 2], 23, 0xc4ac5665); /**//* 48 */

  /**//* Round 4 */
  II (a, b, c, d, x[ 0],  6, 0xf4292244); /**//* 49 */
  II (d, a, b, c, x[ 7], 10, 0x432aff97); /**//* 50 */
  II (c, d, a, b, x[14], 15, 0xab9423a7); /**//* 51 */
  II (b, c, d, a, x[ 5], 21, 0xfc93a039); /**//* 52 */
  II (a, b, c, d, x[12],  6, 0x655b59c3); /**//* 53 */
  II (d, a, b, c, x[ 3], 10, 0x8f0ccc92); /**//* 54 */
  II (c, d, a, b, x[10], 15, 0xffeff47d); /**//* 55 */
  II (b, c, d, a, x[ 1], 21, 0x85845dd1); /**//* 56 */
  II (a, b, c, d, x[ 8],  6, 0x6fa87e4f); /**//* 57 */
  II (d, a, b, c, x[15], 10, 0xfe2ce6e0); /**//* 58 */
  II (c, d, a, b, x[ 6], 15, 0xa3014314); /**//* 59 */
  II (b, c, d, a, x[13], 21, 0x4e0811a1); /**//* 60 */
  II (a, b, c, d, x[ 4],  6, 0xf7537e82); /**//* 61 */
  II (d, a, b, c, x[11], 10, 0xbd3af235); /**//* 62 */
  II (c, d, a, b, x[ 2], 15, 0x2ad7d2bb); /**//* 63 */
  II (b, c, d, a, x[ 9], 21, 0xeb86d391); /**//* 64 */

  A += a;
  B += b;
  C += c;
  D += d;

}

int MD5_CAL(char * filename)
{
    if (!(fp = fopen(filename, "rb")))
 {
  return 0;
 }  //以二进制打开文件
    fseek(fp, 0, SEEK_END);  //文件指针转到文件末尾
    if((len = ftell(fp)) == -1)
 {
  fclose(fp);
  return 0;
 }  //ftell函数返回long,最大为2GB,超出返回-1
    rewind(fp);  //文件指针复位到文件头
    A = 0x67452301,B = 0xefcdab89,C = 0x98badcfe,D = 0x10325476; //初始化链接变量
    flen[1] = len/0x20000000;     //flen单位是bit
    flen[0] = (len%0x20000000)*8;
    memset(x, 0, 64);   //初始化x数组为0
    fread(&x, 4, 16, fp);  //以4字节为一组,读取16组数据
    for(i = 0;i < len / 64; i++)
 {    //循环运算直至文件结束
      md5();
      memset(x, 0, 64);
      fread(&x, 4, 16, fp);
    }
    ( (char*) x) [len % 64] = 128;  //文件结束补1,补0操作,128二进制即10000000
    if(len%64 > 55) md5(), memset(x,0,64);
    memcpy(x+14, flen, 8);    //文件末尾加入原文件的bit长度
    md5();
    fclose(fp);
 fp = fopen( "Filemd5.txt", "w" );
    fprintf(fp,"MD5 Code:%08x%08x%08x%08x\n", PP(A), PP(B), PP(C), PP(D));  //高低位逆反输出
 fclose(fp);
return 1;
}

int main()
{
 return 0;
}

 

box.rc(节选)

/////////////////////////////////////////////////////////////////////////////
//
// Dialog
//

Box DIALOG DISCARDABLE  0, 0, 270, 150
STYLE WS_CHILD
FONT 8, "MS Sans Serif"
BEGIN
    DEFPUSHBUTTON   "&获取MD5",IDC_SCAN,95,129,80,14,WS_DISABLED
    PUSHBUTTON      "&关闭",IDC_QUIT,183,129,80,14
    PUSHBUTTON      "&选择文件",IDC_PUTFILE,7,129,80,14
    EDITTEXT        IDC_EDIT,7,7,253,110,ES_MULTILINE | ES_AUTOVSCROLL |
                    ES_READONLY | WS_VSCROLL | NOT WS_TABSTOP
END

/////////////////////////////////////////////////////////////////////////////