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1 files changed, 34 insertions, 0 deletions

diff --git a/sys/mtio/mtstatus.x b/sys/mtio/mtstatus.x
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+++ b/sys/mtio/mtstatus.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# MTSTATUS -- Print the status of an allocated magtape device, i.e., print the
+# lock file as a text file.  Called by the DEVSTATUS task.
+
+procedure mtstatus (out, mtname)
+
+int	out			#I output file
+char	mtname[ARB]		#I magtape specification
+
+int	in
+pointer	sp, lockfile
+errchk	open, fcopyo
+int	open(), access()
+
+begin
+	call smark (sp)
+	call salloc (lockfile, SZ_FNAME, TY_CHAR)
+
+	call mt_sync (OK)
+
+	call mt_glock (mtname, Memc[lockfile], SZ_FNAME)
+	if (access (Memc[lockfile], 0, 0) == NO) {
+	    call fprintf (out, "tape position for %s is undefined\n")
+		call pargstr (mtname)
+	} else {
+	    # Print the lockfile.
+	    in = open (Memc[lockfile], READ_ONLY, TEXT_FILE)
+	    call fcopyo (in, out)
+	    call close (in)
+	}
+	
+	call sfree (sp)
+end