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(It's not like systems implementing -b binary and -t text still matter.)
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Convert umount and df. Add dlist_terminate() to break lists for traversal in either direction.
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On my machine, for a 2.2 GB file of random bytes, the timings with
warm cache are:
toybox before: 11.4 seconds
toybox after: 8.3 seconds
GNU md5sum: 3.9 seconds
openssl dgst -md5: 3.5 seconds
This is clearly better than before (3x openssl), but still slow (2x openssl).
I suspect there is more low-hanging fruit to be had by eliminating the
memcpy in hash_update (maybe not too much - hash_update accounts for
about 4% of total runtime versus 92% for md5_transform according to
perf - but this would also help sha1sum).
make bloatcheck on x86_64 gcc 4.8.2 -Os:
name old new delta
-----------------------------------------------------------------------
md5rot 0 64 64
md5_transform 365 223 -142
-----------------------------------------------------------------------
-78 total
Rationale for the changes:
Move definition of 'rol' up so it can be used in md5_transform. This
is purely cosmetic; it expands to exactly the same code.
Put rotation counts in a lookup table instead of calculating them on
the fly. This is mostly a wash size-wise, +5 bytes total, but
worthwhile for readability and speed.
Instead of accessing the state array using a rotating index (the
variable formerly known as 'a'), access the state with constant
offsets and rotate the contents of the array instead. This is the big
win - it eliminates all the crazy memory addressing math inside the
loop.
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Partly because there's no supplied target string ala sprintf, and partly
because I can never remember what order the m and s go in.
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POLL_IN defined as a constant by some libc.
Factor out login.c's change_identity() to xwrap.c as xsetuser().
Replace xsetuid() with xsetuser()
Put a space between argument globals and non-argument globals.
TT starts zeroed, don't need to re-zero entries in it.
STDIN_FILENO has been 0 since 1969, even DOS copied that. Just say 0.
Added an xchroot() using xchdir() to lib/xwrap.c.
Remove endgrent() call until somebody can explain why it was there.
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(Fix it.)
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for_each_pid_with_name_in_array_perform_callback_function_upon_translated_value() with name_to_pid(), comparing absolute paths or just basename() consistently as spotted by Lukasz Skalski, and adjust callers.
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requested by LSB
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The <1 has to come first in the option string, normalize whitespace,
sprintf of %d maxes out at -2 billion ala 12 bytes with null terminator so
we don't need a length check in a 4k buffer, use the "%*s" feature of printf
to prepend whitespace for us, take advantage of c99 defining ! to return 0 or 1.
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fancy name from that. This means adding new directories shouldn't require touching build scripts.
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right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
The actual code should be the same afterward, this is just cosmetic refactoring.
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current infrastructure can't give them different help text. Hmmm...
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FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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/tmp/tmp.* Specify a file, ./file. Specify -p dir then dir/tmp.*. Specify -p dir and file, dir/file. Also implement -q which lsb wants.
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