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- more long opt compatibility, can set flag for long opt struct now
- more logic: check opt-depend requires and global requires, special for 'id' and 'start-stop-daemon' applets.
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e2fsprogs: remove confuse bb_mkdep. Use internal e2fsprogs includes only.
other: remove confuse bb_mkdep.
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ifconfig.c
- gzip.c: see if O_NOFOLLOW is defined before using it, else take alternate path
closes bug #221 (partially; The rest will follow later).
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ln.c: error_msg(str)->error_msg(%s, str) - remove standart "feature" for hackers
reduce 100 bytes don't care in sum
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my_getpwnam -> bb_xgetpwnam /* dies on error */
my_getgrnam -> bb_xgetgrnam /* dies on error */
my_getgrgid -> bb_getgrgid
my_getpwuid -> bb_getpwuid
my_getug -> bb_getug
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getopt.h, whitespace changes, typos, etc.
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2) better support long options
3) new flag '!' for bb_opt_complementally: produce bb_show_usage() if BB_GETOPT_ERROR internally
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trailing / turns that into an empty string.
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other warnings is just gross.)
On a side note, while I was there, I made the code slightly smaller.
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shell out to an external program to handle gzip anyway...
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function
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0000093: Patch for dpkg - can't handle scripts
Attached patch is needed to fix dpkg's support for preinst,
postinst etc script files.
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0000142: unzip enhancements
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0000262: tar -x doesn't believe it has reached the end of archive
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(BB_GETOPT_ERROR)
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which were otherwise cluttering the global namespace.
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On machines with only ANSI compliant compilers, not explitily delcaring
an empty parameter list 'void' causes failure.
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in the 2nd and later headers. But this and gunzip really need to be rewritten.
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end of file, causing it to hang on corrupted input.
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Hi,
I found that gcc in cvs (HEAD in 2005/02/11) reject the gzip source
in the busybox.
This is caused by changing gcc's error handling behavior(
The gcc check the function prototype more strictly).
I show the compilation log as follow:
-- compilation log
-- compilation log
To fix the problem, apply the patch which is attached with this
mail.
Please take a look the patch and apply the patch into svn repository.
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the user's umask
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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
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Hi,
I've spent the half night staring at the devilish my_getpwuid and my_getgrgid functions
trying to find out a way to avoid actual and future potential buffer overflow problems
without breaking existing code.
Finally I've found a not intrusive way to do this that surely doesn't break existing code
and fixes a couple of problems too.
The attached patch:
1) changes the behaviour of my_getpwuid and my_getgrgid to avoid potetntial buffer overflows
2) fixes all occurences of this function calls in tar.c , id.c , ls.c, whoami.c, logger.c, libbb.h.
3) The behaviour of tar, ls and logger is unchanged.
4) The behavior of ps with somewhat longer usernames messing up output is fixed.
5) The only bigger change was the increasing of size of the buffers in id.c to avoid
false negatives (unknown user: xxxxxx) with usernames longer than 8 chars.
The value i used ( 32 chars ) was taken from the tar header ( see gname and uname).
Maybe this buffers can be reduced a bit ( to 16 or whatever ), this is up to you.
6) The increase of size of the binary is not so dramatic:
size busybox
text data bss dec hex filename
239568 2300 36816 278684 4409c busybox
size busybox_fixed
text data bss dec hex filename
239616 2300 36816 278732 440cc busybox
7) The behaviour of whoami changed:
actually it prints out an username cut down to the size of the buffer.
This could be fixed by increasing the size of the buffer as in id.c or
avoid the use of my_getpwuid and use getpwuid directly instead.
Maybe this colud be also remain unchanged......
Please apply if you think it is ok to do so.
The diff applies on today's cvs tarball (2004-08-25).
Thanks in advance,
Ciao,
Tito
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dev_t. This is especially important now that the user space concept of a dev_t
and the kernel concept of a dev_t are divergant. The only bit of user space
allowed to know the number of major and minor bits is include/sys/sysmacros.h
(i.e. part of libc). When used with a current C library and a 2.6.x kernel,
this fix should allow BusyBox to support wide device major/minor numbers.
-Erik
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Hello,
I found and patched 2 more bugs. The first is a misplaced semi-colon. The second
one is a buffer overflow. I doubt the buffer overflow is triggered in real life.
But you never know what those wily hackers are up to.
Thanks,
Steve Grubb
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