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diff --git a/pkg/utilities/nttools/tupar/tupar.x b/pkg/utilities/nttools/tupar/tupar.x
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+include <fset.h>		# used to check whether I/O is redirected
+include <error.h>
+include <tbset.h>
+include "tupar.h"		# defines TUPAR_EXIT, TUPAR_QUIT
+
+# tupar -- edit header parameters
+# This task may be used to list, add to, replace, or delete header
+# parameters in a table or list of tables.
+#
+# Phil Hodge, 22-Jul-1987  Task created
+# Phil Hodge, 11-Aug-1987  Call tbhad[] instead of tbhpt[].
+# Phil Hodge, 18-Mar-1988  Rewrite, allowing a list of tables.
+# Phil Hodge,  7-Sep-1988  Change parameter name for table.
+# Phil Hodge, 23-Aug-1991  Allow quit or exit.
+# Phil Hodge,  9-Jul-1993  Allow quit without verification if nothing changed.
+# Phil Hodge, 29-Jun-1995  Modify for FITS tables; modify tu_open and tu_close.
+# Phil Hodge,  3-Oct-1995  Use tbn instead of fnt.
+# Phil Hodge, 22-May-1996  Use iferr when calling tu_instr.
+
+define	LEN_ISBUF	1000	# length or increment for instruction buffer
+
+procedure tupar()
+
+pointer tlist			# for list of input table names
+bool	same_for_all		# same set of instructions for all tables?
+bool	verbose			# print name of each table?
+bool	readonly		# open tables readonly?
+#--
+pointer tp			# pointer to table descriptor
+pointer sp
+pointer tname			# scratch for table name
+pointer tabname			# scratch for full name of table (incl [...])
+pointer lbuf			# scratch for input buffer
+pointer isbuf			# buffer for saving instructions
+int	bufsize			# allocated size of Memc[isbuf]
+int	ibp			# index in Memc[isbuf]
+int	eq_flag			# exit or quit
+int	istat			# set by tu_ex_instr; > 0 implies error
+bool	inplace			# open tables inplace?
+bool	modified		# true if the header was modified
+bool	from_stdin		# get input from STDIN?
+bool	save_instr		# save instruction in buffer?
+bool	iredir			# is input redirected?
+bool	oredir			# is output redirected?
+bool	prompt			# prompt user for input?
+bool	alldone			# done with all tables?
+bool	done			# done with current table?
+bool	quit			# true if we should delete temp table
+bool	clgetb()
+int	fstati()
+pointer tbnopenp()
+int	tbnget(), tbnlen()
+
+begin
+	call smark (sp)
+	call salloc (tname, SZ_LINE, TY_CHAR)
+	call salloc (tabname, SZ_LINE, TY_CHAR)
+	call salloc (lbuf, SZ_LINE, TY_CHAR)
+
+	tlist = tbnopenp ("table")
+
+	same_for_all = clgetb ("same")
+	verbose = clgetb ("verbose")
+	readonly = clgetb ("readonly")
+	if (readonly)
+	    inplace = true
+	else
+	    inplace = clgetb ("inplace")
+
+	from_stdin = true
+
+	# Is input or output redirected?
+	iredir = (fstati (STDIN, F_REDIR) == YES)
+	oredir = (fstati (STDOUT, F_REDIR) == YES)
+	prompt = !iredir		# prompt if input is not redirected
+
+	save_instr = (same_for_all && (tbnlen (tlist) > 1))
+	if (save_instr) {
+	    bufsize = LEN_ISBUF
+	    call malloc (isbuf, bufsize, TY_CHAR)
+	    Memc[isbuf] = EOS
+	} else {
+	    bufsize = 0
+	    isbuf = NULL
+	}
+
+	# Loop over all table names in the file name template.
+	alldone = (tbnget (tlist, Memc[tname], SZ_LINE) == EOF)
+	while (!alldone) {
+
+	    iferr {
+		# Open the table (or a copy of it).
+		call tu_open (Memc[tname], "tupar", readonly, inplace,
+			tp, Memc[tabname], SZ_LINE)
+	    } then {
+		call eprintf ("can't open %s\n")
+		    call pargstr (Memc[tname])
+		alldone = (tbnget (tlist, Memc[tname], SZ_LINE) == EOF)
+		call erract (EA_WARN)
+		next				# ignore this table
+	    }
+
+	    if (verbose) {
+		if (oredir) {
+		    call eprintf ("%s\n")
+			call pargstr (Memc[tabname])
+		}
+		call printf ("%s\n")
+		    call pargstr (Memc[tabname])
+	    }
+
+	    # Edit header parameters in current table.
+	    ibp = 1				# may be incremented in loop
+	    modified = false			# may be reset within tu_instr
+	    done = false
+	    while ( ! done ) {
+		# Get an instruction, execute it, and possibly save it
+		# for use again.
+		iferr {
+		    call tu_instr (tp, Memc[lbuf], readonly, prompt, from_stdin,
+			iredir, save_instr, isbuf, bufsize, ibp,
+			modified, eq_flag, done, istat)
+		} then {
+		    call erract (EA_WARN)
+		}
+		if (istat > 0)
+		    call eprintf ("table was opened readonly\n")
+
+		if (inplace && !readonly &&
+			(eq_flag == TUPAR_QUIT || eq_flag == TUPAR_QUIT_NC)) {
+		    call eprintf (
+"can't quit without saving changes because you edited the table inplace\n")
+		    done = false
+		} else if (eq_flag == TUPAR_QUIT && modified && !readonly) {
+		    # Ask for verification before quitting.
+		    call clputb ("go_ahead", clgetb ("quit_default"))
+		    call eprintf ("quit without saving changes")
+		    call flush (STDERR)
+		    if (! clgetb ("go_ahead"))
+			done = false		# no, don't quit
+		}
+	    }
+
+	    # Reset flags after processing first table.
+	    if (same_for_all) {
+		prompt = false
+		from_stdin = false
+	    }
+	    save_instr = false
+
+	    # Close the table, renaming the temp table back to the
+	    # original if we are saving our changes.
+	    quit = (eq_flag == TUPAR_QUIT || eq_flag == TUPAR_QUIT_NC)
+	    iferr {
+		call tu_close (tp, inplace, quit, Memc[tabname])
+	    } then {
+		alldone = (tbnget (tlist, Memc[tname], SZ_LINE) == EOF)
+		call erract (EA_WARN)
+		next				# ignore this table
+	    }
+
+	    # Get the name of the next file in the list.
+	    alldone = (tbnget (tlist, Memc[tname], SZ_LINE) == EOF)
+
+	    # If the user modified the table but then decided to quit,
+	    # then abort without opening the rest of the tables.
+	    if (eq_flag != TUPAR_EXIT && modified && same_for_all)
+		alldone = true
+	}
+	if (isbuf != NULL)
+	    call mfree (isbuf, TY_CHAR)
+	call tbnclose (tlist)
+	call sfree (sp)
+end
+
+
+# tu_save_instr -- save edit instruction
+# Save the current instruction in the instruction buffer.  The entries
+# are separated by '\n', and the entire set of entries is terminated
+# by EOS.
+# If the buffer would overflow, it will be reallocated.  
+
+procedure tu_save_instr (lbuf, isbuf, bufsize, ibp)
+
+char	lbuf[ARB]		# i: line buffer containing instruction
+pointer isbuf			# io: buffer for saving instructions
+int	bufsize			# io: current allocated size of Memc[isbuf]
+int	ibp			# io: current index in Memc[isbuf]
+#--
+int	k			# loop index
+bool	done			# loop-termination flag
+int	leni			# length of lbuf
+int	strlen()
+
+begin
+	leni = strlen (lbuf)
+	if (ibp + leni >= bufsize) {
+	    bufsize = bufsize + LEN_ISBUF
+	    call realloc (isbuf, bufsize, TY_CHAR)
+	}
+
+	done = false
+	k = 1
+	while ( ! done ) {
+	    if ((lbuf[k] == EOS) || (lbuf[k] == '\n')) {
+		done = true
+	    } else {
+		Memc[isbuf+ibp-1] = lbuf[k]
+		ibp = ibp + 1
+	    }
+	    k = k + 1
+	}
+	Memc[isbuf+ibp-1] = '\n'
+	Memc[isbuf+ibp] = EOS
+	ibp = ibp + 1			# so ibp points to EOS
+end
+
+
+# tu_rd_instr -- read edit instruction
+# Read an instruction from the instruction buffer.  When EOS is reached
+# in the buffer, an EOF will be returned; otherwise, the number of char
+# in the current instruction will be returned.
+
+int procedure tu_rd_instr (isbuf, ibp, lbuf)
+
+char	isbuf[ARB]		# i: buffer containing instructions
+int	ibp			# io: current index in isbuf
+char	lbuf[ARB]		# o: buffer to receive instruction
+#--
+int	k			# loop index
+bool	done			# loop-termination flag
+
+begin
+	done = false
+	k = 0
+	while ( ! done ) {
+
+	    if (isbuf[ibp] == '\n') {
+
+		if (k > 0)		# skip past adjacent '\n'
+		    done = true
+		ibp = ibp + 1
+
+	    } else if (isbuf[ibp] == EOS) {
+
+		done = true		# leave ibp pointing to EOS
+
+	    } else {
+
+		k = k + 1
+		lbuf[k] = isbuf[ibp]
+		ibp = ibp + 1
+	    }
+	}
+	lbuf[k+1] = EOS
+
+	if (k <= 0)
+	    k = EOF
+	return (k)
+end