# include <stdio.h>

//
//  Program 17.1, Stephen Kochan, Programming in C.
//
int main ( int argc, char *argv[] );

int main ( int argc, char *argv[] )
{
  FILE *in;
  FILE *out;
  int c;

  if ( argc != 3 )
  {
    fprintf ( stderr, "Need two file names.\n" );
    return 1;
  }

  in = fopen ( argv[1], "r" );
  if ( in == NULL )
  {
    fprintf ( stderr, "Can't read %s.\n", argv[1] );
    return 2;
  }

  out = fopen ( argv[2], "w" );
  if ( out == NULL )
  {
    fprintf ( stderr, "Can't write %s.\n", argv[2] );
    return 3;
  }

  while ( 1 )
  {
    c = getc ( in );
    if ( c == EOF )
    {
      break;
    }
    putc ( c, out );
  }

  printf ( "\"%s\" has been copied into \"%s\".\n", argv[1], argv[2] );

  fclose ( in );
  fclose ( out );

  return 0;
}