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#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
 
/* amount to skip */
#define PLACE 65536
 
/* size of read buffer */
#define SIZE 0x200000
 
/* crude program to strip the elf header to make a bootable
   image via tftp
 */
 
 
int main(int argc, char **argv )
{
  int fd, fdo;
  unsigned char data[SIZE];
  int i, n, skip;
 
  if ( argc != 3 )
  {
    fprintf(stderr,"%s infile outfile\n", argv[0]);
    exit(-1);
  }
 
 
  fd = open(argv[1], O_RDONLY);
  if ( fd == -1 )
  {
    fprintf(stderr,"Couldn't open %s\n", argv[1]);
    perror("open()");
    exit(-1);
  }
 
  fdo = open(argv[2], O_WRONLY|O_CREAT|O_TRUNC,0755);
  if ( fdo == -1 )
  {
    fprintf(stderr,"Couldn't open %s\n", argv[2]);
    perror("open()");
    exit(-1);
  }
 
#if 0
  skip = atoi(argv[3]);
#else
  skip = PLACE;
#endif
  i = lseek(fd, skip, SEEK_SET);
  printf("lseek'd %d bytes\n", i);
  if ( i == -1 )
  {
      perror("lseek()");
  }
 
  while ( (n = read(fd, data, SIZE)) > 0 )
  {
    printf("Read %d bytes\n", n);
    i = write(fdo, data, n);
    printf("Wrote %d bytes\n", i);    
  }
 
 
  close(fdo);
  close(fd);
  return(0);
}