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Remove STDIN_FILENO and use FLAG().
Use xsetspeed() rather than have a duplicate table.
Inline getty's print_prompt().
There's still a lot of cleanup needed here, in particular use of toybuf
and removal of the inappropriately-named HOSTNAME_SIZE (and ideally
sharing that logic with login(1) which already contains a better
implementation of it).
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and address TODO where -z was still splitting patterns on \n
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no argument returns NULL same as --opt without =
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Add new toy `base32`. Add tests for `base32`.
base32 is added by adapting the base64 encode/decode function to also do
base32 encoding/decoding. Then their respective main functions set up
the global parameter `n` to be the number of bits used in the encoding
(5 for base32 and 6 for base64) and `align` to align the result to a
certain length via padding. These are deliberately kept as parameters to
enable future expansion for other bases easily.
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Pointed out by the compiler combined with glibc's use of
__attribute__((__warn_unused_result__)) on write().
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Note: can't put in portability.h because it's a linux/ include.
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It can't actually be used for INT_MIN in the current context because the
`dd += increment` on line 100 means that even if "last" is INT_MIN, we
won't take the fast path because INT_MIN - 1 isn't representable.
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The kernel will do this for us on both Linux and macOS, but error
messages are a bit misleading if we don't do it ourselves --- it
can look as if the failure is because of the type bits.
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configurable.
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http://lists.landley.net/pipermail/toybox-landley.net/2020-December/012169.html
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The GNU tar manual, when talking about the `tar --transform` option that I
need to implement, describes the 'x' flag by saying "regexp is an extended
regular expression (see section 'Extended regular expressions' in GNU sed)".
Only it turns out that even the latest GNU sed doesn't actually have
that flag. It's unique to `tar --transform`. That link is just telling
you that the sed manual will explain extended regular expressions, not
that GNU sed also supports the 'x' flag.
So I don't know whether we want this in toybox sed after all. (It made
sense that sed would have such a flag, but no sed that I know of
actually does.)
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Based loosely on the Plan9/Inferno utility, and a convenient way to go back
and forth between code points and utf8 sequences.
This patch also fixes a couple of bugs in wctoutf8 (and the tests for this
toy effectively serve as unit tests for wctoutf8/utf8towc).
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Add new toy `pwgen`.
A usefule password generation utility.
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The AOSP build doesn't use tr (or anything that's still in pending), but
the kernel folks have been more aggressive. They found that tr's
pathological flushing was adding minutes to their build times.
Just removing the fflush() made tr significantly faster for my trivial
test, but still slow, with all the time going into stdio. Rewriting the
loop to modify toybuf in place and then do one write per read made most
of the difference, but special-casing the "neither -d nor -s" case made
a measurable difference too on a Xeon.
Bug: http://b/174773617
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tests to catch this. While there add -k to test sticky bit.
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Can't use the same set_terminal() logic as ptys because it not displaying
data, it should just accurately copy it.
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Use 0 optstr prefix, fix bug initializing toys.envc one too low.
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I didn't know until implementing this that --iso is actually called
--iso-8601 and that GNU date will actually accept any prefix. --iso-8
works fine too. I've assumed that --iso (that I always used) and
--iso-8601 (as given in the documentation) are the only two that matter.
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I also promised to fix readelf. Where in file(1) I made no attempt to
say what was bad (or even to change `goto bad` to explicitly say that
*anything* was bad), I believe that readelf is much more likely to be
shown invalid ELF files, and that it would be useful to have some clue
as to what's wrong. Relatedly, this patch removes all existing
error_exit() calls in case it's being used on multiple files.
Again, this survived ~24hrs of AFL++ trying to blow its house down.
Test: ~/AFLplusplus/afl-fuzz -i tests/files/elf -o fuzz-out -- ./readelf -a @@
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I promised months ago I'd fix this, and there was a (not visible to the
public but filed by a member of the public) bug filed against Android in
the meantime, but judged No Security Impact because "toybox is not a
security boundary". Anyway, it seemed high time I learned about fuzzing
command-line tools with AFL++, so here we are.
With these patches (and starting from the ELF files in test/files/elf),
toybox file survived ~24hours against AFL++. Amusingly it corrupted the
ELF files hard enough that it also managed to find a bug in the code
for MS-DOS executables, which is the motivation for the final hunk in
this patch.
Bug: http://b/159065007
Test: ~/AFLplusplus/afl-fuzz -i tests/files/elf -o fuzz-out -- ./file @@
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Android is introducing a new binary XML format that is a drop-in
replacement for many existing .xml files written by system_server.
Since engineers may be surprised when encountering this new format,
add it to the "file" tool to aid identification in the field.
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output depending on whether address was hex or decimal.
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One reason to use toybox on the host is to get the same behavior across
Android/Linux/macOS. Unfortunately (as we've seen from a few bugs) one
area where that doesn't quite work is that toybox uses the libc regular
expression implementation. That's fine, and mostly what users want, but
those folks trying to get the exact same behavior everywhere might want
to switch in a known regex implementation (bionic's NetBSD regex
implementation, say) for increased consistency.
That actually works pretty well, but portability.h has an #ifndef test
for REG_STARTEND before including <regex.h> that gets in the way. To
make up for that, this patch removes the unnecessary #include <regex.h>
from grep.c itself.
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