* do not make backup copy by copying (just retain old file)
* correctly fall back to /etc/passwd if user is not in shadow
* fix bug with overlong passwd entries
* be permissive on some kinds of failures
* reduce stack usage
* code size: -500 bytes
It is impossible to formulate sane ABI based on
size of ulong because it can be 32-bit or 64-bit.
Basically it means that you cannot portably use
more that 32 option chars in one call anyway...
Make it explicit.
things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only
had one user), clean up lots of #includes... General cleanup pass. What I've
been doing for the last couple days.
And it conflicts! I've removed httpd.c from this checkin due to somebody else
touching that file. It builds for me. I have to catch a bus. (Now you know
why I'm looking forward to Mercurial.)
fix than his, and shrank the code a bit on top of that so the net size is
smaller, and added a test to the test suite for this case. Plus I cleaned up
the #includes and removed unnecessary "const"s while I was there.
an xterm it's running in. The vi signal behavior would catch and restarts lots
of signals, like SIGHUP, that should just kill the thing. (Leftover behavior
from when it would segfault all the time.) Filtered out the more obviously
bad ones. If it segfaults, we should find and fix the problem.
SIGIOT is not defined in any standard i can find and it seems to be
useless (alias for SIGABRT) on linux. i put it in #ifdef but it's
probably best just to remove it and cut down the size a bit.
A tab is now taken as the end of filename if it's there, but if it isn't
(because the timestamp isn't there) we continue with the existing untruncated
line as the filename.
error: static declaration of 'free_and_close_stuff' follows non-static declaration
Tiny whitespace cleanup while at it,
also make sure that we don't use CONFIG_ anymore.
Rob, hope this is ok w/ you..
be using WEXITSTATUS(), but until I can figure out why the heck that would
want to do (*(int *) &(status)) on the value, I'm happy just fixing the bug we
actually see.
0000474: vi crashes often
problem was that the buffer used for "." command ("last_modifying_cmd")
wasn't being maintined correctly -- the recording code was walking back
over the front of that buffer when a repeatable insert command
included backspacing (e.g. "i\b\b\bfoo"). the fix is to simply
record the backspaces along with the rest of the command.
also, cleaned up start_new_cmd_q() slightly.
correct screen, and bug 215 reports trouble with the status line
on small screens.
with this change a) the status line should always be refreshed
properly, b) the status line is a little shorter than it used to
be ("I" instead of "--INSERT--"), c) the status line will be
truncated if it doesn't fit on the screen, and d) if the screen
is too narrow for an error or transient status message (from
psb() or psbs()), then that message will be followed by a "Hit
Return" prompt. (it wasn't until i did this last bit that the
size grew. with this, these changes add about 150 bytes.)
- pgf
Charlie Brady wrote:
> Here's another awk parsing problem - unary post increment - pre is fine:
>
>bash-2.05a$ echo 2,3 | gawk -F , '{ $2++ }'
>bash-2.05a$ echo 2,3 | /tmp/busybox/busybox awk -F , '{ $2++ }'
>awk: cmd. line:1: Unexpected token
>
Here's a fix for this. There is another problem with constructions like
"print (A+B) ++C", I don't
know whether somebody uses such constructions (fixing both these
problems would require very
serious change in awk code).
This patch implements the 'T' command in sed. This is a GNU extension,
but one of the udev hotplug scripts uses it, so I need it in busybox
anyway.
Includes a test; 'svn add testsuite/sed/sed-branch-conditional-inverted'
after applying.
While the permissions on the temp file are correct to prevent it from being
maliciously mangled by passing strangers, (created with 600, opened O_EXCL,
etc), the permissions on the _directory_ might not be, and we re-open the
file to convert the filehandle to a FILE * (and automatically get an error
message and exit if the directory's read-only or out of space or some such).
This opens a potential race condition if somebody's using dnotify on the
directory, deletes/renames the tempfile, and drops a symlink or something
there. Somebody running sed -i as root in a world writeable directory could
do damage.
I dug up notes on an earlier discussion where we looked at the security
implications of this (unfortunately on the #uclibc channel rather than email;
I don't have a transcript, just notes-to-self) which pointed out that if the
permissions on the directory allow other people's files to be deleted/renamed
then the original file is vulnerable to sabotage anyway. However, there are
two cases that discussion apparently didn't take into account:
1) Using another user's permissions to damage files in other directories you
can't access (standard symlink attack).
2) Reading data another user couldn't otherwise access by having the new file
belong to that other user.
This patch uses fdopen to convert the filehandle into a FILE *, rather than
reopening the file.
and with multiple files SuSv3 says it should only trigger at the end of the
LAST file.
The trivial fix I tried first broke if the last file is empty. Fixing this
properly required restructuring things to create a file list (actually a
FILE * list), and then processing it all in one go. (There's probably a
smaller way to do this, merging with append_list perhaps. But let's get
the behavior correct first.)
Note that editing files in place (-i) needs the _old_ behavior, with $
triggering at the end of each file.
Here's a test of all the things this patch fixed. gnu and busybox seds produce
the same results with this patch, and different without it.
echo -n -e "1one\n1two\n1three" > ../test1
echo -n > ../test2
echo -e "3one\n3two\n3three" > ../test3
sed -n "$ p" ../test1 ../test2 ../test3
sed -n "$ p" ../test1 ../test2
sed -i -n "$ p" ../test1 ../test2 ../test3
to not put a newline at the end (which was backwards, it should have been
hardwired _to_ put a newline at the end, whether or not the input line
ended with a newline). Test case for that:
echo | sed -e '$ctest'
And then this would segfault:
echo | sed -e 'g'
Because pattern_space got freed but the dead pointer was only overwritten
in an if statement that didn't trigger if the hold space was empty. Oops.
While debugging it, I found out that the hold space is persistent between
multiple input files, so I promoted it to a global and added it to the
memory cleanup. The relevant test case (to compare with That Other Sed) is:
echo -n woo > woo
sed -e h -e g woo
echo "fish" | sed -e '/woo/h' -e "izap" -e 's/woo/thingy/' -e '/fish/g' woo -
And somebody gratuitously stuck in a c99 int8_t type for something that's just
a flag, so I grouped the darn ints.
Hi!
I've created a patch to busybox' build system to allow building it in
separate tree in a manner similar to kbuild from kernel version 2.6.
That is, one runs command like
'make O=/build/some/where/for/specific/target/and/options'
and everything is built in this exact directory, provided that it exists.
I understand that applyingc such invasive changes during 'release
candidates' stage of development is at best unwise. So, i'm currently
asking for comments about this patch, starting from whether such thing
is needed at all to whether it coded properly.
'make check' should work now, and one make creates Makefile in build
directory, so one can run 'make' in build directory after that.
One possible caveat is that if we build in some directory other than
source one, the source directory should be 'distclean'ed first.
egor
add sed -r support.
I bumped into a couple of things that want to use extended regular expressions
in sed, and it really isn't that hard to add. Can't say I've extensively
tested it, but it's small and isn't going to break anything that doesn't use
it, so...
Rob
