Programming

void dirlist(char dir[PATH_MAX],int request)

 DIR *dp=opendir(dir);
     struct direct *entry;
     extern int    errno;
     char dirt[PATH_MAX]={0x0};

     struct stat buf;
     int i=0;

     extern int errno;

      if(!dp)
      {
           printf("             Unable to Open   %s\n",dir);
           return;
      }

     for(entry=readdir(dp);entry!=NULL;entry=readdir(dp))
     {
       i++;
       if(i==1 || i==2) continue;//skiping if it is . or ..(just for now)
        printf("%30s\t",entry->d_name);

        strcpy(dirt,dir);//copy the whole pathname
        strcat(dirt,"/");
        strcat(dirt,entry->d_name);

{
  char buf[512];
  sprintf(buf,"file %s",dirt);
  system(buf);
}

{
  char buf[512];
  FILE *p=popen("file somefile","r");
  fgets(buf,512,p);
  fprintf(stderr, "Process returned %d\n",pclose(p));

  printf("Output was %s\n",buf);
}