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//******************************************** 
//文件名：HDINFO.C 
//功能：1. 读硬盘序列号并进行加密处理 
//      2. 建立硬盘序列号密文数据头文件 
//******************************************** 
#include                       //1. 
#include                      //2. 
#include                      //3. 
#include                       //4. 
void main()                             //5. 
{                                       //6. 
  FILE *fp;                             //7. 
  int i,j,k,l;                          //8. 
  char ch;                              //9. 
  char sh[21];                          //10. 
  unsigned id;                          //11. 
  unsigned cw[257];                     //12. 
  unsigned long m=0;                    //13. 
  long pw=135792468;                    //14.设定基数值 
                                        //15. 
  outp(0x1f6,0xa0);                     //16.向端口写入数据 
  outp(0x1f7,0xec);                     //17.向端口写入数据 
  while(inp(0x1f7)!=0x58 && m++<0xffff) //18.从端口读出数据并进行条件判断 
  ;                                     //19. 
  for(id=0;id!=256;id++)                //20. 
    cw[id]=inpw(0x1f0);                 //21.从端口读一个字 
  for (j=10,k=0;j<=19;j++)              //22. 
    {                                   //23. 
      sh[k++]=(char)(cw[j]/256);        //24.对数据处理后存入数组 
      sh[k++]=(char)(cw[j]%256);        //25.对数据处理后存入数组 
    }                                   //26. 
  sh[k]='\0';                           //27.补结束符 
  l=strlen(sh);                         //28.测试字符串长 
                                        //29. 
  for(i=0;i