*** create.c.orig	Sat Jun 14 15:53:45 1997
--- create.c	Sun Jun 15 18:38:08 1997
***************
*** 35,40 ****
--- 35,101 ----
  #include <strdefs.h>
  #include "starsubs.h"
  
+ #if defined(DGUX) && !defined(NO_DG_FILEREAD)
+ 
+ #include <fcntl.h>
+ #include <sys/dg_unbuffered_io.h>
+ 
+ LOCAL	FILE	*dg_fileopen	__PR((FINFO *info));
+ LOCAL	int	dg_fileclose	__PR((FILE *fp));
+ LOCAL	int	dg_fileread	__PR((FILE *f, char *bp, int cnd));
+ 
+ FILE *dg_fileopen(info)
+ 	FINFO	*info;
+ {
+ 	static	FILE	__f;
+ 	int	f;
+ 
+ 	if ((f = open(info->f_name, O_DG_UNBUFFERED)) < 0)
+ 		return ((FILE *)0);
+ 
+ 	__f._file = f;
+ 	__f._cnt = 0;
+ 	__f._ptr = info->f_rsize;
+ 	return (&__f);
+ }
+ 
+ int dg_fileclose(fp)
+ 	FILE	*fp;
+ {
+ 	return (close(fp->_file));
+ }
+ 
+ int dg_fileread(fp, bp, cnt)
+ 	FILE	*fp;
+ 	char	*bp;
+ 	int	cnt;
+ {
+ 	int	n;
+ 
+ again:
+ 	n = dg_unbuffered_read(fp->_file, bp, fp->_cnt, cnt/512);
+ 	if (n < 0) {
+ 		if (geterrno() == EINTR)
+ 			goto again;
+ 		return (-1);
+ 	}
+ 	if (n == 0)
+ 		return (0);
+ 
+ 	fp->_cnt += n;
+ 	if (fp->_cnt == tarblocks((int)fp->_ptr)) {
+ 		if ((((int)fp->_ptr) % 512) == 0)
+ 			return (n * 512);
+ 
+ 		n -= 1;
+ 		n *= 512;
+ 		n += ((int)fp->_ptr) % 512;
+ 		return (n);
+ 	}
+ 	return (n * 512);
+ }
+ #endif
+ 
  typedef	struct	links {
  	struct	links	*l_next;
  		long	l_ino;
***************
*** 227,232 ****
--- 288,296 ----
  	else if (is_symlink(info) && !read_symlink(name, info, ptb))
  		;
  	else if (is_file(info) && info->f_size != 0 && !nullout &&
+ #if defined(DGUX) && !defined(NO_DG_FILEREAD)
+ 				(f = dg_fileopen(info)) == (FILE *)NULL) {
+ #else
  #ifdef	OLD_OPEN
  				(f = fileopen(name,"ru")) == (FILE *)NULL) {
  #else
***************
*** 236,241 ****
--- 300,306 ----
  				 */
  				(f = fileopen(name,"r")) == (FILE *)NULL) {
  #endif
+ #endif
  		errmsg("Cannot open '%s'.\n", name);
  	} else {
  		if (info->f_nlink > 1 && read_link(name, namlen, info, ptb))
***************
*** 280,286 ****
--- 345,355 ----
  		if (acctime && f != NULL)
  			rs_acctime(f, info);
  		if (f)
+ #if defined(DGUX) && !defined(NO_DG_FILEREAD)
+ 			dg_fileclose(f);
+ #else
  			fclose(f);
+ #endif
  	}
  }
  
***************
*** 421,428 ****
--- 490,502 ----
  		cr_file(info, (int(*)__PR((void *, char *, int)))nullread,
  							f, 0, "reading");
  	} else {
+ #if defined(DGUX) && !defined(NO_DG_FILEREAD)
+ 		cr_file(info, (int(*)__PR((void *, char *, int)))dg_fileread,
+ 							f, 0, "reading");
+ #else
  		cr_file(info, (int(*)__PR((void *, char *, int)))ffileread,
  							f, 0, "reading");
+ #endif
  	}
  }