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2005-11-28fix bug #474:Paul Fox
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.
2005-11-20Support # comments after s/// option list.Rob Landley
2005-10-30\0 is a synonym for &. Our own "make allbaseconfig" breaks without this.Rob Landley
2005-10-27- correct boilerplateBernhard Reutner-Fischer
- use bb_xgetlarg for the patch_level to catch invalid arguments.
2005-10-19more const, attribute_noreturn saved 200 bytes"Vladimir N. Oleynik"
2005-10-17- consume space between functionname and opening bracketsBernhard Reutner-Fischer
Fixes Rob's issue using busybox awk for building gcc-4_0 optionlist (http://busybox.net/lists/busybox/2005-October/016659.html)
2005-10-15common BUFSIZ BSS buffer, small reduce code, data and bss"Vladimir N. Oleynik"
2005-10-10- do not use bb_xgetularg10_bnd as a lower value of -1 doesn't work due to loweBernhard Reutner-Fischer
being unsigned. - minor correction: use stdin only when no file was given via -i. - use shorter boilerplate.
2005-10-09catch and report errors from file_write()Paul Fox
2005-10-09make Hit_Return() available when CONFIG_FEATURE_VI_COLON is off. it'sPaul Fox
needed elsewhere as well now.
2005-10-06change strange depend to libbb.h, but require busybox.h"Vladimir N. Oleynik"
2005-09-27as pointed out in Bug 17, use uint32_t instead of unsigned long since the ↵Mike Frysinger
code expects the size of the info variables to be 32bits and sizeof(long) on 64bit hosts is not 32bits
2005-09-27eat misappropriated whitespaceMike Frysinger
2005-09-27uncuddle function scope bracketsMike Frysinger
2005-09-24use the shorter license headerMike Frysinger
2005-09-24use brief license lineMike Frysinger
2005-09-16initialize a couple of vars whose warnings were suppressed becausePaul Fox
i was building w/ debug on before, which suppresses optimization.
2005-09-16some combinations of status line and screen refresh don't give aPaul Fox
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
2005-09-14split libbb: moved xregcomp separatelly for speed up recompile"Vladimir N. Oleynik"
2005-09-14removed strange extern void xregcomp(... from some applets, but declared ↵"Vladimir N. Oleynik"
from libbb.h
2005-09-13allow either backspace or DEL, in addition to the user's erasePaul Fox
char, to be used in get_input_line()
2005-09-02Missing break was screwing up 'y//' command. Bug #248.Rob Landley
2005-09-01Patch -i support from Berhnard Fischer.Rob Landley
2005-07-27use toplevel ARFLAGS and update default ARFLAGS to be quietMike Frysinger
2005-07-20applying fix for:Paul Fox
0000118: vi join command does not mark file as modified for certain lines.
2005-07-18allow both ^H and DEL to backspace in insert mode (bug #23)Paul Fox
2005-07-18Fix vi so that error messages, insert mode messages, etc areEric Andersen
all actually displayed in the status line as expected
2005-06-07Patch from Dmitry Zakharov:Rob Landley
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).
2005-05-18Patch from Colin Watson (mangled slightly by Rob Landley):Rob Landley
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.
2005-05-18Doug Swarin pointed out a security bug in the -i option of sed.Rob Landley
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.
2005-04-16Patch from Bernhard Fischer to make a bunch of symbols staticEric Andersen
which were otherwise cluttering the global namespace.
2005-04-16In Bug 208, bernhardf writes:Mike Frysinger
On machines with only ANSI compliant compilers, not explitily delcaring an empty parameter list 'void' causes failure.
2004-11-25Hiroshi found another bug. Currently sed's $ triggers at end of every file,Rob Landley
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
2004-10-30Hiroshi Ito found some bugs. The 'c' command (cut and paste) was hardwiredRob Landley
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.
2004-10-08egor duda writes:Eric Andersen
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
2004-09-24Patch from Dmitry Zakharov to fix a bug triggered by freeswan's scripts.Glenn L McGrath
2004-08-19regularly update the status line displayEric Andersen
-Erik
2004-07-30Simon Poole reports that awk segfaults when environment variablesEric Andersen
with no value exist, i.e. $ export BOB='' % ./busybox awk Segmentation fault This patch teaches awk to not blow chunks on empty env variables. -Erik
2004-07-23Patch from Dmitry Zakharov to fix a bug discovered via the freeswapGlenn L McGrath
script.
2004-07-20Assign 'forced' before the goto to avoid a warningEric Andersen
2004-05-26Rob Landley writes:Eric Andersen
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
2004-05-16Use int instead of char for return type, in theory avoiding a castGlenn L McGrath
2004-05-10Fix for debian bug #248106, should use int for returned getopt value.Glenn L McGrath
2004-04-25Update my email address, document some of my tasks in the AUTHORS fileGlenn L McGrath
2004-04-21This sed patch can only be described as "duh". Stat the source file, chmodEric Andersen
the _destination_ file. (Ah hah! That works _much_ better...) I implemented the behavior, I just forgot to test this corner of it. My fault, sorry... No, gnu sed -i doesn't preverve ownership information. I checked. Permissions, yes, ownership info, no. Rob
2004-04-21So I'm building a linux from scratch system, using a working script to do thisEric Andersen
that the _only_ change to is that gnu sed has been replaced with busybox sed. And ncurses' install phase hangs. I trace it down, and it's trying to run gawk. (Insert obligatory doubletake, but this is FSF code we're talking about, so...) It turns out gawk shells out to sed, ala "sed -f /tmp/blah file.h". The /tmp/blah file is basically empty (it contains one character, a newline). So basically, gawk is using sed as "cat". With gnu sed, it works like cat, anyway. With busybox sed, it tests if its command list is empty after parsing the command line, and if the list is empty it takes the first file argument as a sed command string, and if that leaves the file list empty it tries to read the data to operate on from stdin. (Hence the hang, since nothing's coming in on stdin...) It _should_ be testing whether there were any instances of -f or -e, not whether it actually got any commands. Using sed as cat may be kind of stupid, but it's valid and gawk relies on this behavior. Here's a patch to fix it, turning a couple of ints into chars in hopes of saving a bit of the space this adds. Comments? Rob
2004-04-14Larry Doolittle writes:Eric Andersen
This is a bulk spelling fix patch against busybox-1.00-pre10. If anyone gets a corrupted copy (and cares), let me know and I will make alternate arrangements. Erik - please apply. Authors - please check that I didn't corrupt any meaning. Package importers - see if any of these changes should be passed to the upstream authors. I glossed over lots of sloppy capitalizations, missing apostrophes, mixed American/British spellings, and German-style compound words. What is "pretect redefined for test" in cmdedit.c? Good luck on the 1.00 release! - Larry
2004-04-01The last patch broke:Rob Landley
sed -i "/^boo/a fred" ipsec.conf Which works in gnu sed. (And is _supposed_ to strip all the whitespace before "fred".) It also broke: sed -i -e "/^boo/a \\" -e " fred" ipsec.conf I.E. there can legally be spaces between the a and the backslash at the end of the line. And strangely enough, gnu sed accepts the following syntax as well: sed -i "/^boo/a \\ fred" ipsec.conf Which is a way of having the significant whitespace at the start of the line, all on one line. (But notice that the whitespace BEFORE the slash is still stripped, as is the slash itself. And notice that the naieve placement of "\n" there doesn't work, it puts an n at the start of the appended line. The double slashing is for shell escapes because you could escape the quote, you see. It's turned into a single backslash. But \n there is _not_ turned into a newline by the shell. So there.) This makes all three syntaxes work in my tests. I should probably start writing better documentation at some point. I posted my current sedtests.py file to the list, which needs a lot more tests added as well...
2004-03-31Junio Hamano, junio at twinsun dot com writes:Eric Andersen
The sed command in busybox 1.0.0-pre8 loses leading whitespace in 'a' command ('i' and 'c' commands are also affected). A patch to fix this is attached at the end of this message. The following is a transcript that reproduces the problem. The first run uses busybox 1.0.0-pre3 as "/bin/sed" command, which gets the expected result. Later in the test, /bin/sed symlink is changed to point at busybox 1.0.0-pre8 and the test script is run again, which shows the failure. === reproduction recipe === * Part 1. Use busybox 1.0.0-pre3 as sed; this works. root# cd /tmp root# cat 1.sh #!/bin/sh cd /tmp rm -f ipsec.conf ipsec.conf+ cat >ipsec.conf <<\EOF version 2.0 config setup klipsdebug=none plutodebug=none plutostderrlog=/dev/null conn %default keyingtries=1 ... EOF sed -e '/^config setup/a\ nat_traversal=yes' ipsec.conf >ipsec.conf+ mv -f ipsec.conf+ ipsec.conf root# sh -x 1.sh + cd /tmp + rm -f ipsec.conf ipsec.conf+ + cat + sed -e /^config setup/a\ nat_traversal=yes ipsec.conf + mv -f ipsec.conf+ ipsec.conf root# cat ipsec.conf version 2.0 config setup nat_traversal=yes klipsdebug=none plutodebug=none plutostderrlog=/dev/null conn %default keyingtries=1 ... root# sed --version sed: invalid option -- - BusyBox v1.00-pre3 (2004.02.26-18:47+0000) multi-call binary Usage: sed [-nef] pattern [files...] * Part 2. Continuing from the above, use busybox 1.0.0-pre8 as sed; this fails. root# ln -s busybox-pre8 /bin/sed-8 root# mv /bin/sed-8 /bin/sed root# sed --version This is not GNU sed version 4.0 root# sed -- BusyBox v1.00-pre8 (2004.03.30-02:44+0000) multi-call binary Usage: sed [-nef] pattern [files...] root# sh -x 1.sh + cd /tmp + rm -f ipsec.conf ipsec.conf+ + cat + sed -e /^config setup/a\ nat_traversal=yes ipsec.conf + mv -f ipsec.conf+ ipsec.conf root# cat ipsec.conf version 2.0 config setup nat_traversal=yes klipsdebug=none plutodebug=none plutostderrlog=/dev/null conn %default keyingtries=1 ... root# === reproduction recipe ends here === This problem was introduced in 1.0.0-pre4. The problem is that the command argument parsing code strips leading whitespaces too aggressively. When running the above example, the piece of code in question gets "\n\tnat_traversal=yes" as its argument in cmdstr variable (shown part in the following patch). What it needs to do at this point is to strip the first newline and nothing else, but it instead strips all the leading whitespaces at the beginning of the string, thus losing the tab character. The following patch fixes this.
2004-03-31Patch from Thomas Winkler -- vi -R did not workEric Andersen