//********************************************
//文件名：COFI.C
//功能：1. 調用讀扇區匯編子程序
//      2. 通過連續讀取扇區，每次恢復一個簇的文件數據
//********************************************
#include<stdio.h>                         //1.
extern RHD(int,int,int,int,char *);       //2.聲明讀扇區匯編子程序
void main()                               //3.
{                                         //4.
  FILE *tmfp,*fp;                         //5.
  int i,j;                                //6.
  unsigned int m;                         //7.
  unsigned char h[512];                   //8.
  char name[13];                          //9.
  char sh[13];                            //10.
  unsigned long k;                        //11.
  unsigned char s1,s2,s3,s4;              //12.
  printf("Enter create file name: ");     //13.
  scanf("%s",sh);                         //14.輸入建立的文件名
  printf("Enter sector number: ");        //15.
  scanf("%lu",&k);                        //16.輸入一個簇的首扇區號
  printf("Enter sector block count: ");   //17.
  scanf("%u",&m);                         //18.輸入一個簇的扇區數
  for(j=1;j<=m;j++)                       //19.
  {                                       //20.
    tmfp=tmpfile();                       //21.
    fwrite(&k,4,1,tmfp);                  //22.
    rewind(tmfp);                         //23.
    fread(&s4,1,1,tmfp);                  //24.
    fread(&s3,1,1,tmfp);                  //25.
    fread(&s2,1,1,tmfp);                  //26.
    fread(&s1,1,1,tmfp);                  //27.
    fclose(tmfp);                         //28.
    tmpnam(name);                         //29.
    RHD(s1,s2,s3,s4,name);                //30.調用讀扇區匯編子程序
    fp=fopen(name,"rb");                  //31.打開臨時文件
    for(i=0;i<=511;i++)                   //32.
    {  h[i]=fgetc(fp);  }                 //33.將數據讀入數組
    fclose(fp);                           //34.
    fp=fopen(sh,"ab+");                   //35.以填加方式打開目的文件
    for(i=0;i<=511;i++)                   //36.
    {  fputc(h[i],fp);  }                 //37.將數據輸出到文件
    fclose(fp);                           //38.
    k++;                                  //39.
    remove(name);                         //40.刪除臨時文件
  }                                       //41.
}                                         //42.