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Requested by aheirman on github: uses access(X_OK) which checks access
control lists as well as permissions, and that _we_ can access them
(u+x could be owned by a different user)...
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Also reorder the --help output to separate the "whats" from the "hows",
as with other commands that have lots of options, and add units to the
help too.
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by not writing as much payload as the header promised.
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Ethan Sommer noticed that chown is using chgrp_main() due to OLDTOY, so
the wrapper function isn't needed.
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Avoid fgets() into toybuf other than to skip header lines, preferring
fscanf() or xgetline() instead.
Remove the early returns if we fail to skip a header line (fixes #62).
Fix `netstat -xl` which was previously broken (because only -a would
include listening sockets).
Fix a variety of formatting issues, bringing the diff between toybox
netstat and net-tools netstat down (which was what I used for testing).
Use FLAG() more consistently.
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I need to set up a test environment for this...
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Instead of unlink() && check errno, call lstat() explicitly to check
file existence if "-f" is specified.
There is a regression when if the path to be removed is nonexistence
and within a readonly filesystem, then unlink() could set the EROFS
errno instead of ENOENT, thus screwing up the output of `rm`.
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or else singlemake enables it for all commands. (I was trying to
move it out of the command namespace, but it's not a global config
option either...)
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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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