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but --restrict checking should run on the path up to the last component
before unlinking so tar can't be tricked into deleting random files off
the system.
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Reason: unicolumns() does not print combining characters correctly
Combining characters follow the character which they modify.
https://www.cl.cam.ac.uk/~mgk25/unicode.html#comb
xterm renders cut test1.txt -C -1 now correctly
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And a few small cleanups while I was there.
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back when they haven't specified -s, add tests.
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checked relative to the current directory, not from where the symlink lives.
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(it returns a malloc), and doesn't match the object lifetime of getbasename()
(which always returns some or all of its argument string). The dirname() in
libc modifies its argument string, but that's what posix says to do:
https://pubs.opengroup.org/onlinepubs/9699919799.2008edition/functions/dirname.html
so I guess we can live with it.
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We need two spaces between filenames because that is the convention
followed by other implementations. More importantly, if we do not have
two spaces, certain Unicode file names cause filenames to run together.
In Unicode, combining characters come before the character they modify.
If a filename ends in a combining character, the combining character
attaches to the space that follows it, causing the space not to be
visible. Having a two-space gap stops the above issue from happening.
For context and a bit more information, see mailing list link below.
https://www.mail-archive.com/toybox@lists.landley.net/msg05986.html
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Inline array becomes garbage outside the if.
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Don't run the command with no arguments if we run out of input but
have already run the command at least once. The implementation of "run
the command at least once (unless -r was supplied)" wasn't taking into
account whether or not this was our first time round the loop.
Fix the exit value, and the -- already documented but not implemented --
behavior if a child exits with status 255.
Also extend the tests to cover these cases, plus cases I broke while
coming up with the fix. Add more tests to convince myself that we've
correctly interpreted how -s is supposed to behave, and fix the corner
cases at the bottom end of the range.
This fixes some issues we were seeing trying to build the Android SDK
for (and more importantly, on) macOS.
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When user builds toybox CFG_TOYBOX_I18N disabled and tries to list
folder contents with multibyte characters other than UTF-8 ls might
seqfault since wcrtomb returns -1
while locale set to fi_FI-UTF-8 disable CFG_TOYBOX_I18N
touch őőőőaaőő
ls
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We're inconsistent about whether the option help below should be just `-t`
or `-t DIR`, but the majority of commands _don't_ repeat their argument,
so I've left that as-is for now.
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The "gratuitous extra entry" is only gratuitous when there isn't a hole. (Which
we can detect and not include but then we wouldn't match other implementations.)
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(oops.)
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length of sparse files properly.
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(All ignored, because they disable stuff we don't do.)
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Two more spacing bugs here, one before the security context for -Z, and
one after the size with --full-time.
Before:
$ ./toybox ls -lZ --full-time Config.
-rw-r----- 1 enh primarygroup? 56162019-09-07 21:09:32.892215100 -0700 Config.in
After:
$ ./toybox ls -lZ --full-time Config.
-rw-r----- 1 enh primarygroup ? 5616 2019-09-07 21:09:32.892215100 -0700 Config.in
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I think when I wrote this I tested the named escapes like \n and hex
escapes, and when I found \x wasn't supported I didn't even think of
octal. And I only learned about \c when I was looking at echo and printf
to compare their escape implementations a few weeks back.
Add the missing escapes and corresponding tests.
Fixes #139.
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This broke a netd test (but sadly in postsubmit rather than presubmit).
Also add a trivial test that would at least have caught this bug.
Bug: http://b/140453237
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Commit c26870dab3462c6176936384b090df6b9ba46dee broke ls' error
reporting for files that don't exist. `ls $F` is used by some as an
equivalent of `test -e $F`.
This patch also adds a regression test.
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This fixes the case where someone's done something (weird) like:
find src/*.c -name foo.c
Previously the match would fail because one side of the comparison was
already a path.
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as unusual timestamp formats
After further research and testing, I've produced a patch which handles
all filenames with special characters by copying the GNU quoting
behavior, and also treats anything following a tab as a timestamp. This
increases both ability to handle possible filenames and ability to
apply patches found in the field.
In diff, quote and escape filenames according to the following rules.
* Surround the filename with quotes if it contains a byte less than 0x20,
a byte greater than or equal to 0x80, space, backslash, or quote.
* Replace alert, backspace, form feed, newline, carriage return, tab, vertical
tab, backslash, and quote with \a, \b, \f, \n, \r, \t, \v, \\, and \",
respectively.
* Replace other bytes less than 0x20 or greater than or equal to 0x80 with a
backslash followed by the three octal digits representing the value of the
byte.
* Treat valid UTF-8 characters involving sequences of bytes greater than or
equal to 0x80 the same as other sequences of such bytes.
In patch, process quoted and escaped filenames according to the following
rules.
* If the filename does not begin with a quote, do not modify the filename.
* Remove quotes surrounding the filename.
* In quoted filenames, replace \a, \b, \f, \n, \r, \t, \v, \\, and \" with
alert, backspace, form feed, newline, carriage return, tab, vertical tab,
backslash, and quote, respectively.
* In quoted filenames, replace a backslash followed by octal digits with the
byte with that value in octal.
Also, in patch, treat anything on a +++ or --- line following a tab character
after the beginning of the filename as a timestamp, rather than part of the
filename.
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Unlike ls, find does treat ENOENT specially. Add an extra test (and fix
the behavior) for the case of ENOENT for a path provided on the command
line --- unlike other ENOENT cases (typically dangling symlinks), ENOENT
for a command line argument should report an error.
Also remove obsolete `|sed` from the symlink loop test.
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The Linux kernel uses the --max-args synonym for -n.
Barbarians who use vi need xargs' -o to be able to do something like:
find -name xargs.c | xargs vi # Sad vi.
find -name xargs.c | xargs -o vi # Happy vi.
The -p option needs fixing to read from /dev/tty because stdin is
otherwise occupied in xargs. I think xargs is the only place that needs
this, so it didn't seem sensible to make all callers to yesno() be
specific about which they wanted, hence the new function.
Also remove the documentation for the build-time XARGS_PEDANTIC option
which isn't actually implemented.
Also add a TODO for -P (which is used by at least one script in the
Linux kernel).
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Tweak DIRTREE_STATLESS so it returns zero stat for any error (I'm testing
that dev, ino, and blksize are all zero), and fill in file type from readdir()
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macOS remains awkward, though, but this retains our Android/Linux
behavior and is closer to the platform's getconf(1) for macOS.
Strictly macOS denies all knowledge of UIO_MAXIOV, but the "undefined"
you'll get from this patch seems closer than the "1024" we used to
give.
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