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authorJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
committerJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
commitfa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch)
treebdda434976bc09c864f2e4fa6f16ba1952b1e555 /sys/mtio/mtneedf.x
downloadiraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include "mtio.h"
+
+# MTNEEDFILENO -- Returns YES if no file number is specified in mtname, or
+# NO if a file is specified.
+
+int procedure mtneedfileno (mtname)
+
+char mtname[ARB] #I magtape device specification
+
+int fileno, recno
+pointer sp, device, devcap
+int btoi()
+
+begin
+ call smark (sp)
+ call salloc (device, SZ_DEVICE, TY_CHAR)
+ call salloc (devcap, SZ_DEVCAP, TY_CHAR)
+
+ call mtparse (mtname, Memc[device], SZ_DEVICE, fileno, recno,
+ Memc[devcap], SZ_DEVCAP)
+
+ call sfree (sp)
+ return (btoi(fileno == ERR))
+end