- ansification
- format of output of jobs command (etc)
- job identiers %+, %- etc
- $? and $(...)
- correct quoting of output of set, export -p and readonly -p
- differentiation between nornal and 'posix special' builtins
- correct behaviour (posix) for errors on builtins and special builtins
- builtin printf and kill
- set -o debug (if compiled with DEBUG)
- cd src obj (as ksh - too useful to do without)
- unset -e name, remove non-readonly variable from export list.
(so I could unset -e PS1 before running the test shell...)
While a hard link to a symbolic link is not ruled out by POSIX-2001,
the ln(1) utility (sans -s) is to perform equivalent to the link(2)
function on its operands, which includes the resolution of symbolic
links in source_file arguments.
> The wrong process is aborting when variable assignment fails
> in the vfork path. So the following command fails to execute
> the second echo (shown here with the correct output).
>
> $ (readonly r; r= /bin/echo a; echo b)
> r: is read only
> b
>
> fix: defer the mklocal() to the child shell.
> Also 'jobs' fails in a non-interactive shell.
> In showjobs(), the code that puts the process back into its
> own process group should only be run if the shell is actually
> doing job control - eg if 'mflag' is set.
$ /fred # non existant command
$ ^C # stops working
He says:
Ok the extra INTOFF is the one in exverror().
In almost all cases this doesn't matter because the longjmp()s
all end up in main() and the FORCEINTON call sorts it out
for the next command.
(There are a significant number of INTON/OFF mismatches through
the error paths...)
In any case the above failure can be 'fixed' by changing 2 (I think
they are both needed) INTON calls to FORCEINTON within evalcommand.
The following patch seems to work:
We should really look in the code and fix the INTON->INTOFF pairs.
and /usr/bin/cpio (/bin/cpio). The pathname of tar(1) is hard-coded
into things like binary packages, and thus must be kept around
for backward compatibility.
extract. We now generate GNU tar archives by default ("ustar ^@" instead of
"ustar^@00"). GNU extensions can be disabled with --strict.
XXX: long symlinks untested.
- correct -C processing
- add ability to read filenames and flags from a file
- don't print dangerous escape sequences to the terminal
- use strlcpy/strncpy properly.
- handle tmpfile creation better.
- improve documentation of options.
- handle stdout/stderr list selection correctly.
- kill gzip when we get interrupted.
- simplify gzip setup.
- add more flags to programs.
additional changes:
- librmt processing.
- set POSIXLY_CORRECT in options parsing.
- prevent more string overruns.
- support -T
we don't turn the switch on to replace tar and cpio yet.
with privilege elevation no suid or sgid binaries are necessary any
longer. Applications can be executed completely unprivileged. Systrace
raises the privileges for a single system call depending on the
configured policy.
Idea from discussions with Perry Metzger, Dug Song and Marcus Watts.
Approved by christos and thorpej.
effects, and add double to it, so that it aligns doubles correctly too. This
is just a workaround to fix the sparc64 problem where ALIGN() is now defined
in some include file to be 16 instead of 8. Thanks to martin for debugging this.
the non-vfork case. Having said that, it would be nice if pipelines of
simple commands were vforked too. Right now they are not.
Explain that setpgid() might fail because we are doing it both in the
parent and the child case, because we don't know which one will come
first.
Suspending a pipeline prints %1 Suspended n times where n is the number
of processes, but that was there before. It is easy to fix, but I'll
leave the code alone for now.
Propagate isroot, throughout the eval process and maintain it properly.
Fixes sleep 10 | cat^C not exiting because sleep and cat ended up in
their own process groups, because wasroot was always true in the children.
christos