Repatch (from linux) of OSX IRAF

1 files changed, 50 insertions, 0 deletions

diff --git a/sys/ki/ktzsek.x b/sys/ki/ktzsek.x
new file mode 100644
index 00000000..f8b20829
--- /dev/null
+++ b/sys/ki/ktzsek.x
@@ -0,0 +1,50 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<mach.h>
+include	<config.h>
+include	"ki.h"
+
+# KT_ZSEK -- Seek on a text device.  We are called only if the device does not
+# reside on the local node.
+
+procedure kt_zsek (device, chan, loffset, status)
+
+int	device			# device driver code
+int	chan			# channel assigned device
+long	loffset			# znottx offset to seek to
+int	status			# receives nchars written or ERR
+
+pointer	bd
+int	server
+int	ki_sendrcv()
+include	"kichan.com"
+include	"kii.com"
+
+begin
+	call ki_flushtx (device, chan, status)
+	if (status == ERR)
+	    return
+
+	# Discard any cached input text to force a buffer refill at the new
+	# offset.
+
+	bd = k_bufp[chan]
+	B_RP(bd) = B_ITOP(bd)
+
+	# Transmit the seek request to the server.
+
+	server   = k_node[chan]
+	p_arg[1] = k_oschan[chan]
+
+	# The long integer seek offset is passed as an encoded char sequence
+	# rather than as an integer p_arg value to avoid possible loss of
+	# precision.
+
+	call ki_encode (loffset, p_sbuf, NCHARS_LONG)
+	p_sbuflen = NCHARS_LONG
+
+	if (ki_sendrcv (server, device, TX_SEK) == ERR)
+	    status = ERR
+	else
+	    status = p_arg[1]
+end