ofw/disklabel/common.fth

\ See license at end of file
purpose: Data that is common to all format recognizers

-1 instance value size-low
-1 instance value size-high
0 instance value partition-type
h# 81 constant minix-type
h# 83 constant ext2fs-type
h# a5 constant ufs-type
h# 96 constant iso-type
h# ee constant gpt-type

0 value ufs-partition
0 0 instance 2value partition-name$
0 instance value #part

0 instance value /sector  \ Set in open by calling parent's block-size method
0 instance value sector-buf

0 instance value sector-offset

: sector-alloc  ( -- )  /sector alloc-mem to sector-buf  ;
: sector-free  ( -- )  sector-buf /sector free-mem  ;

\ For ISO-9660 CD-ROMs, ISO-9660 flash or hard drives, and GPT
: read-hw-sector  ( sector# -- )
   sector-offset +  /sector um*  " seek" $call-parent  abort" Seek failed"
   sector-buf /sector  " read" $call-parent  /sector <> abort" Read failed"
;
\ For everything else
: read-sector  ( sector# -- )
   sector-offset +  h# 200 um*  " seek" $call-parent  abort" Seek failed"
   sector-buf h# 200  " read" $call-parent  h# 200 <> abort" Read failed"
;

\ LICENSE_BEGIN
\ Copyright (c) 2006 FirmWorks
\ 
\ Permission is hereby granted, free of charge, to any person obtaining
\ a copy of this software and associated documentation files (the
\ "Software"), to deal in the Software without restriction, including
\ without limitation the rights to use, copy, modify, merge, publish,
\ distribute, sublicense, and/or sell copies of the Software, and to
\ permit persons to whom the Software is furnished to do so, subject to
\ the following conditions:
\ 
\ The above copyright notice and this permission notice shall be
\ included in all copies or substantial portions of the Software.
\ 
\ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
\ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
\ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
\ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
\ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
\ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
\ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\
\ LICENSE_END