Subversion Repositories zet86

#include <sys/types.h>

#include <sys/stat.h>

#include <fcntl.h>

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

int main(int argc, char *argv[])

{

  char buf1[2];

  char buf2[2];

  int  f1, f2, c1, c2;

  char err[50];

  if (argc!=3)

    {

      sprintf(err, "Usage: %s hd.img bios.img\n", argv[0]);

      write(2, &err, strlen(err));

      exit(1);

    }

  f1 = open (argv[1], O_RDONLY);

  if (f1<0)

    {

      sprintf(err, "Could not open file %s\n", argv[1]);

      write(2, &err, strlen(err));

      exit(1);

    }

  f2 = open (argv[2], O_RDONLY);

  if (f2<0)

    {

      sprintf(err, "Could not open file %s\n", argv[2]);

      write(2, &err, strlen(err));

      exit(1);

    }

  while (1)

  {

    c1=read(f1, &buf1, 2);

    c2=read(f2, &buf2, 2);

    if (c1<2 && c2<2) break;

    else

      {

        if (c1<2) { buf1[0] =  0xff; buf1[1] = 0xff; }

        if (c2<2) { buf2[0] =  0xff; buf2[1] = 0xff; }

      }

    write (1, &buf1[1], 1);

    write (1, &buf1[0], 1);

    write (1, &buf2[1], 1);

    write (1, &buf2[0], 1);

  }

  close(f1);

  close(f2);

  return 0;

}