From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/mtio/mtneedf.x | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 sys/mtio/mtneedf.x (limited to 'sys/mtio/mtneedf.x') diff --git a/sys/mtio/mtneedf.x b/sys/mtio/mtneedf.x new file mode 100644 index 00000000..9c334949 --- /dev/null +++ b/sys/mtio/mtneedf.x @@ -0,0 +1,26 @@ +# 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 -- cgit