3 * changed fsck_minix.c to reduce its .bss size significantly
5 * Fairly massive restructuring of umount.c to deal with remounting
6 busy devices read-only. Adds a -r option to control that; it is
7 optionally compiled in with BB_FEATURE_REMOUNT
8 * Added a bunch of functions to mtab.c to interact with the
9 {get,set,end}mntent interface; as it turns out, those functions do
10 not appear to be re-entrant, and that causes a lot of problems with
11 the way umount was originally written.
12 * Makes init send TERM and KILL (instead of HUP and KILL) on reboot
13 to be more consistent with sysvinit
14 * Changes to init.c to use the new -r option to umount. Also increased
15 the sleep time between the time the TERM and KILL signals are sent
20 * cp.c, mv.c: removed, replaced by cp_mv.c which has been
21 extensively rewritten from the original cp.c.
22 * Also added a warning message to the `mv' usage string saying that
23 this is not GNU mv, and it will break hard links. cp also breaks
25 * ln.c: implemented `-n' switch, no-deref symlinks.
26 * include<sys/param.h>: and use PATH_MAX everywhere.
27 * busybox: File name buffer overrun guards to prevent future crashes.
28 - Always check exit status.
29 - Purge all use of `creat()', replace with `open()'.
31 - recursiveAction was overriding the value of
32 followLinks thus ignoring it.
33 - isDirectory now takes a followLinks boolean, updated all callers
34 - copyFile had the followLinks logic reversed.
35 * messages.c: New file. Put common error message strings all in
36 one place in an attempt to shrink the binary a little.
41 * Made tar creation support in busybox tar optional.
42 * You no longer _have_ to put a "-" in front of tar options.
43 * Tar could inadvertently change permissions and ownership on
44 certain directories pointed to by symlinks.
45 * Made grep and grep -h do the right thing wrt printing
46 the file name (it failed to print files names in many cases).
47 * Fix a namespace aliasing problem wereby if du was built in, the
48 symlink for both du and dutmp would be installed, or then rm was
49 built in, the symlinks for both rm and rmmod would be installed.
50 * Added a closelog() to init.c after loging -- fix thanks to
51 Taketoshi Sano <kgh12351@nifty.ne.jp>
52 * Rewrote and simplified logger. Added the "-t" option, and made it
53 behave itself a bit better.
54 * Optional support contributed by Ben Collins <bcollins@debian.org>
55 for the kernel init chroot patch by Werner Almesberger, which
56 allows init to chroot to a new device, and umount the old one.
57 * Fixed bug that wouldn't let one chown a symlink -- it would
58 always dereference before. -beppu
59 * Fixed a bug where init could have reference already freed memory.
60 Found and fixed by Taketoshi Sano <kgh12351@nifty.ne.jp>
61 * Several contributions from Friedrich Vedder <fwv@myrtle.lahn.de>
62 * Added (and documented) "-n" option for head -
63 * Cleanup for a number of usage messages -- also
64 contributed Friedrich Vedder <fwv@myrtle.lahn.de>
65 * Cosmetic fix to busybox.c (Don't print a comma at the
66 end of line if there are no more application names).
67 * Fixed a stupid bug in "head" option handling ("head -n"
69 * Moved commonly used functions "xmalloc()" and "exit()"
70 to utility.c (with proper #ifdef's).
71 * Created a tiny tail implementation, removing -c, -q, -v, and making
72 tail -f work only with a single file. This reduced tail
73 from 6k to 2.4k. The bigger/more featured tail can still be
74 had by disabling BB_FEATURE_SIMPLE_TAIL in dusybox.defs.h
75 * Ping now falls back to doing the right thing if /etc/protocols
77 * Fixed mount and umount. Previously they could leak loop device
78 allocations, causing the system to quickly run out. Fix for umount
79 by Ben Collins <bcollins@debian.org>, and mount was fixed by me.
80 * ls formatting on eight charactor user names fixed by
81 Randolph Chung <tausq@debian.org>.
82 * cp could, when copying symlinks, change permissions of the
83 files pointed to by the symlinks.
84 * Several fixes from Pavel Roskin <pavel_roskin@geocities.com>:
85 - `chown' with 1 argument displayed the error incorrectly
86 - `fdflush', `length' and `printf' crashed when run without arguments
87 - `fdflush' tried to flush itself using *argv
88 - added "skip" and "seek" to dd.
89 * swapoff -a was not working. Now it is.
90 * init did not cleanly unmount filesystems on reboot. Now it does.
91 * "sed -ne s/foo/bar/" worked but "sed -n -e s/foo/bar/" didn't.
93 * Some architectures (PowerPc) assume chars are unsigned, so they could
94 not distinguish between EOF and '\0xFF' in sed. Sed now uses ints.
100 * New Apps: wc, hostid, logname, tty, whoami, yes -- all contributed
101 by Edward Betts <edward@debian.org>
102 * Fixed a bug in both cp and mv preventing 'cp foo/README bar'
103 type commands (file in a directory to another directory)
105 * Fixed a logger bug that caused garbage to be written to the syslog
106 (unless you used busybox syslog, which hid the bug). Thanks
107 to Alex Holden <alex@linuxhacker.org> for the fix.
108 * /bin/true and /bin/false were echoing a blank line when run. Now fixed.
109 * mkdir -p would print an error when asked to mkdir an existing dir
110 with no interveining subdirectories.
111 * Fixed "syslogd -O" so that it works.
112 * Added -o loop option for mount, and support in umount for loop
113 devices. Support is toggled by MOUNT_LOOP feature -- Ben Collins
114 <bcollins@debian.org>
115 * Several fixes from Marco Pantaleoni <panta@prosa.it>
116 * compile in fullWrite() not only if BB_TAR is defined, but also
117 if BB_CP or BB_MV are (fullWrite() is referenced by copyFile())
118 * add some compiler optimizations to further reduce executable size
119 (as a side note, on my machines the largest code is generated by
120 gcc 2.95.2 with -Os ! The smallest by plain gcc 2.7.2.3 with -O2
122 * Compile no longer fails if busybox.def.h defines BB_FEATURE_LINUXRC
123 but not BB_INIT. (init_main used to be referenced, but not compiled)
124 * Fixed a bug in setting TERM for serial console support. TERM now
125 defaults to "ansi" for serial consoles.
126 * Fixed a bug in handling the CONSOLE env. variable for serial consoles.
128 -Erik Andersen, Jan 15, 2000
131 * New Apps: sort, uniq. -beppu
132 * New Apps: lsmod, rmmod -erik
133 * New Apps: fbset contributed by Randolph Chung <tausq@debian.org>.
134 * New App:: loadacm contributed by Peter Novodvorsky <petya@logic.ru>
135 for loading application character maps for Unicode fonts.
136 * Major init re-work. init now supports inittab (slightly different
137 but similar to sysvinit), allowing me to get all the policy out
138 of init and into the conf file. It works just fine without inittab
139 being present, but if you dont like the defautl behavior you can
140 now do something about it. Init is much cleaner as a result.
141 * Fixed an bug in syslogd causing it to stop after 20 minutes. -erik
142 * Fixed an embarrasing segfault in head -beppu
143 * Fixed the embarrasing failure of 'logger -p'. -erik
144 * Added the -s option to du -beppu
145 * Re-worked the source tree a bit so it will compile under glibc 2.0.7
146 with the 2.0.x Linux kernel.
147 * Added 'grep -q' thanks to a patch from "Konstantin Boldyshev"
149 * Grep -i previously failed on UPPER CASE patterns due to a silly
150 regexp implementation bug that is now fixed.
151 * Fixed a bug where tar would set, and then clear SGID and SUID bits.
152 * Fixed a bug where tar would not set the user and group on device
154 * Fixed a bug where tar would not restore the time to files.
155 * Fixed a major security problem with tar -- it changed ownership
156 of any file pointed to by a symlink to 777 (like say libc....)
158 * cp and mv were very broken when moving directories. I have rewritten
159 them so they should now work as expected.
160 * sed now supports addresses (numeric or regexp, with negation) and
161 has an append command, thanks to Marco Pantaleoni <panta@prosa.it>
162 * Fixed dmesg. It wasn't parsing its options (-n or -s) properly.
163 * Some cosmetic fixes to ls output formatting to make it behave more
165 * Fixed a stupid segfault in kill.
166 * Several fixes from Friedrich Vedder <fwv@myrtle.lahn.de>:
167 - Added gunzip -t, removed gunzip.c dead code,
168 - fixed several typos
169 - Glibc 2.0.7 and libc5 compile fixes
170 * Fixed a bug where 'mknod --help' would segfault.
173 -Erik Andersen, Jan 07, 2000
176 * New Apps: ping, hostname, and mkfifo contributed by Randolph Chung
177 <tausq@debian.org>. 3 items off the TODO list!
178 * I wrote free (just calls "cat /proc/meminfo").
179 * Added tail, based on tail from GNU textutils-1.19, but adjusted
180 to suit my evil purposes. Costs 6k. I'll make it smaller sometime.
181 * on reboot, init called 'umount -a -n', which caused errors
182 when BB_MTAB was not enabled. Changed to 'umount -a',
183 which does the right thing.
184 * init will now try to run /sbin/getty if it is present (for easy
185 integration with the about-to-be-released tinylogin.)
186 * kill now behaves itself properly, added 'kill -l' to list signals
187 * 'ls -l' was failing on long directories, since my_getid was leaking
188 one file descriptor per file. Oops.
189 * Fixed rebooting from init. I'd accidently left some debugging code in
190 which blocked reboots.
191 * Fixed reboot, halt (and added poweroff) such that they handle it when
192 init is not at PID 1 (like when running in an initrd).
193 * Added a prelinary du implementation. Some parameter parsing
194 stuff still needs to be added. -beppu (John Beppu <beppu@lineo.com>)
195 * Implemented tee. -beppu
196 * Implemented head. -beppu
198 -Erik Andersen, Dec 10, 1999
201 * Fixed a segfault in 'umount -a' when a badly formed /etc/fstab
203 * df will not exit on error, but will stat all mounted filesystems.
204 * Fixed tar so uid/gid/permissions on extracted tarballs will be correct.
205 * Fixed find -name so it properly uses shell wildcard patterns
206 (i.e. `*', `?', and `[]') instead of regular expressions, which
207 was causing some confusing and unexpected behavior.
208 * Added klogd to syslogd, so now the log will contain both system and
210 * syslogd now creates the /dev/log socket to make sure it is there, and
211 is actually a socket with the right permissions.
212 * I've taken a first step to making busybox not need the /proc
213 filesystem. Most apps don't need it. Those that _require_ it,
214 will complain if you enable them when you disable
215 BB_FEATURE_USE_PROCFS.
217 -Erik Andersen, Dec 5, 1999
220 * Wrote a micro syslogd, and a logger util (to log things to the syslog
221 from the command line or scripts) With both compiled in, costs 4k.
222 * Fixed 'make install' so symlinks are installed in their proper locations.
223 * Changed the build system slightly so that features can now be enabled
224 or disabled from the busybox.defs.h header file, without trying to
225 compile in a source file named after that featue (unless that file exists).
226 * Several options are now moved into busybox.defs.h
227 * Now 'rm -R' and 'rm -r' both work.
228 * dd now properly handles input beyond 1 block from stdin.
229 * Fixed a bug where tar unpacked everything a directories. Moved some code
230 from createPath into mkdir where it belonged, thereby making tar work properly.
231 * Fixed an off-by-one bug in cat. Given a list of file it wouldn't cat out the
232 last file in the list.
233 * Fixed 'ls -ln' so numeric group/uid are presented properly, and fixed 'ls -l'
234 so when uid/gid is not in /etc/{passwd,group} the numeric group/uid are
239 -Erik Andersen, Nov 25, 1999
242 * fixed dd so it properly defaults to stdin and stdout when no
243 if= and of= are set (fix thanks to Eric Delaunay).
244 * Don't try to close the file descriptor of a pipein tar. (fix also from
246 * Made createPath be quiet (again thanks to Eric Delaunay).
247 * If BB_CONSOLE_CMD_IF_RC_SCRIPT_EXITS is defined, then whatever
248 command you define it as will be run if the init script exits.
249 * Updated install.sh to make it more robust (thanks to Adam Di Carlo)
250 * NFS support added to mount by Eric Delaunay. It costs 10k when compiled
251 in, but that is still a big win for those that use NFS.
252 * Made 'rm -f' be silent for non-existant files (thanks to Eric Delaunay).
253 * changed zcat.c to gunzip.c. It now obeys the principle of least surprise
254 and acts as god intended gunzip and zcat to act. They answer --help and
256 * Fixed a bug in mv which caused it to not move files when the destination
258 * Fixed a decimal-instead-of-octal bug causing mkdir to make directories
259 with very wrong permissions.
260 * chmod would overwrite file permissions instead of modifying them.
261 Now it properly modifies permissions.
262 * Init now sends warnings destined for the console to /dev/console to ensure
263 they show up on whatever the active console it. Otherwise important
264 messages (for example that the system is rebooting) were not seen when
265 switched to a different VT.
267 -Erik Andersen, Nov 17, 1999
270 * gzip now obeys the principle of least surprise and acts like god intended
271 (i.e. it accepts a file name, answers --help, and obeys the '-c' flag
272 and only then outputs to stdout).
273 * Fixed more.c to compile autowidth on sparc and set initial winsize
274 to 0,0 in case the TIOCGWINSZ ioctl fails. Fix thanks to Eric Delaunay.
275 * Fixed tar so it now works as expected (it had TRUE/FALSE backwards)
276 * tar now accepts --help
277 * chmod, chown, and chgrp usage now works
278 * General usage (i.e. --help) cleanups for most apps
279 * umount now parses options correctly
280 * tar can now unpack tarballs containing device special files,
281 sockets, and fifos (though it can't pack them up) thanks
282 to Matt Porter. Creating archives containing these is still
283 left to the interested student.
284 * fixed up the license in more.c to properly point to Bruce Perens.
286 -Erik Andersen, Nov 11, 1999
289 * ls -l now displays link names outside the current directory,
290 Patch thanks to Eric Delaunay
291 * init now properly handles sparc serial consoles and does a
292 better job of finding the real console device rather than using
293 /dev/console which doesn't support job control. Patch also
294 thanks to Eric Delaunay.
295 * more started to read from stdin after the last file was finished, and
296 options were not parsed correctly (fix thanks to Eric Delaunay).
297 * more will now use the terminal size if BB_FEATURE_AUTOWIDTH is on.
298 * rm wouldn't remove a symlink unless the symlink was valid. This was
299 a side effect of the busybox 0.32 recursiveAction() fix. Things
300 should now work correctly.
301 * grep wouldn't grep stdin. Now it does.
302 * sed wouldn't sed stdin. Now it does.
303 * sed was appending a \n to the end of lines with replacements.
304 Now it doesn't do that.
305 * ls -l now bypasses libc6 nss when displaying user/group names.
306 Now uses my_getpwuid and my_getgrgid.
308 -Erik Andersen, Nov 8, 1999
311 * Fixed a bug where init could hang instead of rebooting.
312 * Removed some debugging noise from init.c
313 * Fixed ln so it works now (it was very broken).
314 * Fixed df so it won't segfault when there is no /etc/fstab,
315 * If BB_MTAB is not defined, df and mount will whine if /etc/fstab
316 is not installed (since they cannot fixup "/dev/root" to
317 state the real root device name)
318 * merged some redundant code from mtab.c/df.c into utility.c
320 -Erik Andersen, Nov 5, 1999
323 * More changes -- many thanks to Lineo for paying me to work on
324 busybox. If you have any problems please let me know ASAP
325 at andersen@lineo.com or andersee@debian.org
326 * usage() now prints the BusyBox version. This will help folks
327 realize that they are not in Kansas anymore.
328 * Fixed mkdir -m option so that it works.
329 * kill segfaulted w/o any arguments. Now it doesn't do that.
330 * kill wasn't properly accepting signal names. It does now.
331 * Added new apps chvt and deallocvt (I should probably add open)
332 * Major rewrite of init.c. Code is now readable by mere mortals IMHO.
333 * Wrote sed -- weighs only 1.8k (5.8k with full regular expressions!).
334 * Fixed a stupid seg-fault in sync
335 * Fixed mount -- mount -a failed to parse and apply mount options
336 * Fixed umount -n (patch thanks to Matthew Grant <grantma@anathoth.gen.nz>)
337 * umount -a no longer umounts /proc
338 * Added BB_MTAB, allowing (at the cost of ~1.5k and the need for a rw /etc)
339 folks to use a real /etc/mtab file instead of a symlink to /proc/mounts.
340 mount, and umount will add/remove entries and df will now use /etc/mtab
341 if BB_MTAB is defined.
342 * Fixed a nice bug in recursiveAction() which caused it to infinitely
343 hunt through /proc/../fd/* creating new file descriptors if it
344 followed the /dev/fd link over to /proc. recursiveAction() now
345 lstat's the file when followLinks==FALSE so it won't follow links
346 as the name suggests. Fix thanks to Matt Porter <porter@debian.org>.
349 -Erik Andersen, Nov 4, 1999
352 * I added a changelog for version 0.30.
353 * adjusted find internals to make it smaller, and removed
355 * Fixed a segfault in ps when /etc/passwd or /etc/group
356 are absent. Now will warn you and carry on.
357 * Added in optional _real_ regular expression support (to be
358 the basis for a future sed utility). When compiled in
359 it adds 3.9k, but makes grep much more capable.
360 * Checked out using nftw(3) for recursive stuff, but unfortunatly
361 it wasn't supported before GNU libc 2.1, and some folks use
362 glibc 2.0.7 since it is much smaller than that latest and greatest.
364 -Erik Andersen, Oct 21, 1999
367 Major changes -- lots of stuff rewritten. Many thanks to Lineo for
368 paying me to make these updates. If you have any problems with busybox,
369 or notice any bugs -- please let me know so I can fix it. These
373 * busybox can now invoke apps in two ways: via symlinks to the
374 busybox binary, and as 'busybox [function] [arguments]...'
375 * When invoked as busybox, the list of currently compiled in
376 functions is printed out (no this is not bloat -- the list
377 has to be there anyway to map invocation name to function).
378 * busybox no longer parses command lines for apps or displays their
379 usage info. Each app gets to handle (or not handle) this for
381 * Eliminated monadic, dyadic, descend, block_device, and
382 postprocess. It was cumbersome to have so many programs
383 cobbled together in this way. Without them, the app is much
385 * All shared code now lives in utility.c, and is properly
386 ifdef'ed to be only included for those apps requiring it.
387 * Eliminated struct FileInfo (the basis of monadic, dyadic, etc)
388 so now each app has the function prototype of (da-dum):
389 extern int foo_main(int argc, char** argv);
390 which speeds integration of new apps.
391 * Adjusted the Makefile to make it easier to
392 {en|dis}able debugging.
393 * Changed default compiler optimization to -Os
394 (optimize for smaller binaries).
397 * To cope with the new app function prototype and the removal of
398 monadic, dyadic, etc, the following apps were re-written:
399 * cat - Works same as always.
400 * chgrp, chmod, chown - rewrite. Combined into a single
401 source file. Absorbed patches from Enrique Zanardi <ezanard@debian.org>
402 that removes the dependency on libc6 libnss* libraries.
403 * cp - Can now do 'cp -a' can can copy devices,
404 pipes, symlinks, as well as recursive or non-recursive dir copies.
405 * fdflush - adjusted to remove dependancy on struct FileInfo.
406 * find - Now includes some basic regexp matching
407 which will be the basic of a future mini-sed.
408 * ln - Same functionality.
409 * mkdir - Added -p flag to feature set.
411 * rm - Added -f flag to feature set.
412 * rmdir - Same functionality.
413 * swapon, swapoff - Combined into a single binary. No longer
414 uses /etc/swaps. swap{on|off} -a uses /etc/fstab instead.
415 * touch - Same functionality.
416 * date - adjusted with a patch from Matthew Grant <grantma@anathoth.gen.nz>
417 to accomodate glibc timezone support. I then ripped out GNU getopt.
418 * mkswap -- new version merged from util-linux. Can now make >128Meg swaps.
419 * Replaced the old and star, unstar, and tarcat with the tar
420 implementation from sash. Now tar behaves as god intended
421 it to (i.e. tar -xvf <file> and tar -cf <file> <dir> work).
422 * dd -- rewritten. Can with with files, stdin, stdout.
423 * Added the following new apps:
424 * loadfont -- added from debian boot floppies
425 * chroot -- added based on a patch from Paolo Molaro <lupus@lettere.unipd.it>
426 * grep -- I just wrote it. Only matches simple strings
427 * ps -- I just wrote it. Has _no_ options at all, but works.
428 * fsck_minix, mkfs_minix -- added from util-linux, but I ripped out
429 internationalization and such to make them smaller.
430 * sfdisk -- Added from util-linux (minus internationalization and such).
431 * Probably some other changes that I forgot to document...
433 -Erik Andersen, Oct 20, 1999
436 This version was a messy pre-alpha. stay away or it will bite you.
437 -Erik Andersen, Sep 24, 1999
440 mini-netcat (mnc) rewritten.
443 Mount now supports -a, and -t auto.
444 Mount now updates mtab correctly for 'ro'.
445 More checks screen rows size, outputs bytes percentage.
446 Printf added as module.
448 Touch now creates files. -c option for no create.