The command shell situation is a big mess. We have three or four different
shells that don't really share any code, and the "standalone shell" doesn't
work all that well (especially not in a chroot environment), due to apps not
- being reentrant. I'm writing a new shell (bbsh) to unify the various
- shells and configurably add the minimal set of bash features people
- actually use. The hardest part is it has to configure down as small as
- lash while providing lash's features. The rest is easy in comparison.
- bzip2
- Compression-side support.
+ being reentrant.
+ lash is phased out. hush can be configured down to be nearly as small,
+ but less buggy :)
init
General cleanup (should use ENABLE_FEATURE_INIT_SYSLOG and ENABLE_FEATURE_INIT_DEBUG).
- Unify base64 handling.
- There's base64 encoding and decoding going on in:
- networking/wget.c:base64enc()
- coreutils/uudecode.c:read_base64()
- coreutils/uuencode.c:tbl_base64[]
- networking/httpd.c:decodeBase64()
- And probably elsewhere. That needs to be unified into libbb functions.
+ depmod
+ busybox lacks a way to update module deps when running from firmware without the
+ use of the depmod.pl (perl is to bloated for most embedded setups) and or orig
+ modutils. The orig depmod is rather pointless to have to add to a firmware image
+ in when we already have a insmod/rmmod and friends.
Do a SUSv3 audit
Look at the full Single Unix Specification version 3 (available online at
"http://www.opengroup.org/onlinepubs/009695399/nfindex.html") and
initramfs
Busybox should have a sample initramfs build script. This depends on
bbsh, mdev, and switch_root.
-
-
-Bernhard Fischer <rep.nop@anon.at>:
- Makefile stuff:
- make -j is broken, -j1 is forced atm
+ mkdep
+ Write a mkdep that doesn't segfault if there's a directory it doesn't
+ have permission to read, isn't based on manually editing the output of
+ lexx and yacc, doesn't make such a mess under include/config, etc.
+ Group globals into unions of structures.
+ Go through and turn all the global and static variables into structures,
+ and have all those structures be in a big union shared between processes,
+ so busybox uses less bss. (This is a big win on nommu machines.) See
+ sed.c and mdev.c for examples.
+ Go through bugs.busybox.net and close out all of that somehow.
+ This one's open to everybody, but I'll wind up doing it...
+
+
+Bernhard Fischer <busybox@busybox.net> suggests to look at these:
New debug options:
-Wlarger-than-127
+ Cleanup any big users
+ -Wunused-parameter
+ Facilitate applet PROTOTYPES to provide means for having applets that
+ do a) not take any arguments b) need only one of argc or argv c) need
+ both argc and argv. All of these three options should go for the most
+ feature complete denominator.
Collate BUFSIZ IOBUF_SIZE MY_BUF_SIZE PIPE_PROGRESS_SIZE BUFSIZE PIPESIZE
- Use bb_common_bufsiz1?
+ make bb_common_bufsiz1 configurable, size wise.
+ make pipesize configurable, size wise.
+ Use bb_common_bufsiz1 throughout applets!
As yet unclaimed:
Make sure we handle empty files properly:
From the patch man page:
- you can remove a file by sending out a context diff that compares
- the file to be deleted with an empty file dated the Epoch. The
- file will be removed unless patch is conforming to POSIX and the
- -E or --remove-empty-files option is not given.
+ you can remove a file by sending out a context diff that compares
+ the file to be deleted with an empty file dated the Epoch. The
+ file will be removed unless patch is conforming to POSIX and the
+ -E or --remove-empty-files option is not given.
---
patch
Should have simple fuzz factor support to apply patches at an offset which
And while we're at it, a new patch filename quoting format is apparently
coming soon: http://marc.theaimsgroup.com/?l=git&m=112927316408690&w=2
---
+ps / top
+ Add support for both RSS and VSIZE rather than just one or the other.
+ Or make it a build option.
+---
man
It would be nice to have a man command. Not one that handles troff or
anything, just one that can handle preformatted ascii man pages, possibly
ar
Write support?
---
-crond
- turn FEATURE_DEBUG_OPT into ENABLE_FEATURE_CROND_DEBUG_OPT
+stty / catv
+ stty's visible() function and catv's guts are identical. Merge them into
+ an appropriate libbb function.
+---
+struct suffix_mult
+ Several duplicate users of: grep -r "1024\*1024" * -B2 -A1
+ Merge to a single size_suffixes[] in libbb.
+ Users: head tail od_bloaty hexdump and (partially as it wouldn't hurt) svlogd
+---
+tail
+ ./busybox tail -f foo.c~ TODO
+ should not print fmt=header_fmt for subsequent date >> TODO; i.e. only
+ fmt+ if another (not the current) file did change
Architectural issues:
allocation on the stack or the heap. Unfortunately, we're not using it much.
We need to audit our memory allocations and turn a lot of malloc/free calls
into RESERVE_CONFIG_BUFFER/RELEASE_CONFIG_BUFFER.
- For a start, see e.g. make CFLAGS_EXTRA=-Wlarger-than-64
+ For a start, see e.g. make EXTRA_CFLAGS=-Wlarger-than-64
And while we're at it, many of the CONFIG_FEATURE_CLEAN_UP #ifdefs will be
optimized out by the compiler in the stack allocation case (since there's no
jumps out of the normal flow control and bypasses any cleanup code we
put at the end of our applets.
- It's possible to add hooks to libbb functions like xmalloc() and bb_xopen()
+ It's possible to add hooks to libbb functions like xmalloc() and xopen()
to add their entries to a linked list, which could be traversed and
freed/closed automatically. (This would need to be able to free just the
entries after a checkpoint to be usable for a forkless standalone shell.
fprintf(stderr, "%s: %s not found\n", "unalias", *argptr);
-> fprintf(stderr, "unalias: %s not found\n", *argptr);
---
+ possible code duplication ingroup() and is_a_group_member()
+---
+ Move __get_hz() to a better place and (re)use it in route.c, ash.c, msh.c
+---
+ See grep -r strtod
+ Alot of duplication that wants cleanup.
+---
Code cleanup:
---
vdprintf() -> similar sized functionality
---
-
projects / oweals / busybox.git / blobdiff