The project team has decided to change the proposal to remove the
contentious builtins for /usr/gnu. Instead, only /usr/bin and
/usr/xpg4,xpg6 utilities are being provided as builtins. As these
utilities will hopefully one day be converted to use the same underlying
libcmd interface, this should not be contentious.
I'm restarting the timeout for one week from today (timeout expires
April 7). The revised spec follows.
- Garrett
I'm sponsoring this fast-track request on behalf of the
ksh93-integration project.
Please note that this is an *open* case.
The release binding is the same as with the ksh93 project: a
patch/micro release of Solaris delivering through ON
Stability levels are as described below.
This project is an amendment to the Korn Shell 93 Integration project
(PSARC/2006/550 and PSARC/2007/035, PSARC/2008/094, PSARC/2008/344
and PSARC/2008/589) specifying the following additional
interfaces:
Addition of /usr/xpg6/bin, /usr/xpg4/bin and /usr/bin built in
mappings in ksh93
This case supersets PSARC/2010/095 (it is identical sans built in
mappings for /usr/gnu/bin).
Bug/RFE Number(s):
6935110 ksh93 needs (more) XPG built ins
This case proposes to deliver the following features as a set of
independent putbacks as they become available. Each feature is
self contained and independent of the others, so out of order
and partial putbacks at this granularity should have no adverse
impact on the functionality and behavior of the system as a whole.
Part 1: ksh93 built in mappings for /usr/xpg4/bin utilities
----------------------------------------------------------
The case proposes to enable the following mappings to ksh93 built in
commands for utilities in /usr/xpg4/bin. When the utility is called
using it's command name, and not the full path, the ksh93 builtin
will be used instead of executing the /usr/xpg4/bin binary.
Interface Stability Description
--------- --------- -----------
ksh93 '/usr/xpg4/bin/basename' built in Committed POSIX basename utility
ksh93 '/usr/xpg4/bin/egrep' built in Committed POSIX egrep utility
ksh93 '/usr/xpg4/bin/fgrep' built in Committed POSIX fgrep utility
ksh93 '/usr/xpg4/bin/grep' built in Committed POSIX grep utility
ksh93 '/usr/xpg4/bin/id' built in Committed POSIX id utility
ksh93 '/usr/xpg4/bin/rm' built in Committed POSIX rm utility
Part 2: ksh93 built in mappings for /usr/xpg6/bin utilities
----------------------------------------------------------
The case proposes to enable the following mappings to ksh93 built in
commands for utilities in /usr/xpg6/bin. When the utility is called
using it's command name, and not the full path, the ksh93 builtin
will be used instead of executing the /usr/xpg6/bin binary.
Interface Stability Description
--------- --------- -----------
ksh93 '/usr/xpg6/bin/expr' built in Committed POSIX expr utility
Part 3: ksh93 built in mappings for /usr/bin utilities
----------------------------------------------------------
The case proposes to enable the following mappings to ksh93 built in
commands for utilities in /usr/bin. When the utility is called
using it's command name, and not the full path, the ksh93 builtin
will be used instead of executing the /usr/xpg4/bin binary.
Interface Stability Description
--------- --------- -----------
ksh93 '/usr/bin/dirname' built in Committed POSIX dirname utility
General comments
----------------
This case heavily builds on PSARC/2006/550 which was the first
PSARC case to introduce the concept of shell built ins bound
to a path.
Future development
------------------
The shell project team will file separate ARC case to add the same
shell built ins to bash4, reusing the same code as ksh93
(libcmd.so.1).
The shell project will later provide an API within libcmd.so.1 for
other shells (e.g. bash4) and applications to call the built ins
directly.
This API will be available as contracted API until sufficient
experience has been collected and then opened as Committed
interface.
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