Denys Vlasenko [Mon, 9 Apr 2018 15:54:07 +0000 (17:54 +0200)]
hush: fix func_return2.tests on NOMMU
function old new delta
hush_main 1714 1718 +4
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 18:45:16 +0000 (20:45 +0200)]
unlzma: fix segfault on bad archive
function old new delta
unpack_lzma_stream 2647 2653 +6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 18:02:01 +0000 (20:02 +0200)]
bzip2: fix two crashes on corrupted archives
As it turns out, longjmp'ing into freed stack is not healthy...
function old new delta
unpack_usage_messages - 97 +97
unpack_bz2_stream 369 409 +40
get_next_block 1667 1677 +10
get_bits 156 155 -1
start_bunzip 212 183 -29
bb_show_usage 181 120 -61
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/3 up/down: 147/-91) Total: 56 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 16:06:24 +0000 (18:06 +0200)]
wget: check chunk length for overflowing off_t
function old new delta
retrieve_file_data 428 465 +37
wget_main 2386 2389 +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 40/0) Total: 40 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 15:23:27 +0000 (17:23 +0200)]
libbb.h: always include sys/resource.h
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 14:44:45 +0000 (16:44 +0200)]
lzop: remove method checks which are always true/false
function old new delta
do_lzo_compress 232 224 -8
lzo_compress 531 488 -43
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-51) Total: -51 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 14:31:02 +0000 (16:31 +0200)]
lzop: buffer several 32-bit writes when we start a new compressed block
function old new delta
lzo_compress 483 531 +48
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 12:00:03 +0000 (14:00 +0200)]
lzop: reuse strings
function old new delta
lzo_compress 470 483 +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 13/0) Total: 13 bytes
text data bss dec hex filename
940011 477 7284 947772 e763c busybox_old
939976 477 7284 947737 e7619 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 11:45:04 +0000 (13:45 +0200)]
lzop: checksum reads do not need to be checksummed
function old new delta
do_lzo_decompress 404 427 +23
f_read32 22 - -22
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 11:35:28 +0000 (13:35 +0200)]
lzop: don't support ancient versions < 0.94 (15 Oct 1997)
0.94 came only 2 months after initial 0.90:
0.90 (10 Aug 1997): First public release of lzop
...
0.94 (15 Oct 1997): Header format change
function old new delta
do_lzo_decompress 411 404 -7
f_read8 24 - -24
f_read16 31 - -31
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/1 up/down: 0/-62) Total: -62 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 8 Apr 2018 11:32:47 +0000 (13:32 +0200)]
lzop: code shrink by using header_t matching on-disk layout
function old new delta
add_bytes_to_chksum 37 47 +10
lzo_decompress 524 532 +8
init_chksum 14 21 +7
chksum_getresult 13 17 +4
f_read 33 28 -5
f_write8 20 - -20
f_write32 22 - -22
f_write16 25 - -25
f_write 36 - -36
do_lzo_compress 328 232 -96
do_lzo_decompress 526 411 -115
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 4/3 up/down: 29/-319) Total: -290 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 19:04:39 +0000 (21:04 +0200)]
tar: trim help text
Usage: tar c|x|t [-ZzJjahmvokO] [-f TARFILE] [-C DIR] [-T FILE] [-X FILE] [--exclude PATTERN]... [FILE]...
Create, extract, or list files from a tar file
Operation: <============== DELETED
c Create
x Extract
t List
-f FILE Name of TARFILE ('-' for stdin/out)
-C DIR Change to DIR before operation
-v Verbose
-O Extract to stdout
-m Don't restore mtime
-o Don't restore user:group
-k Don't replace existing files
-Z (De)compress using compress
-z (De)compress using gzip
-J (De)compress using xz
-j (De)compress using bzip2
-a (De)compress using lzma
-h Follow symlinks
-T FILE File with names to include
-X FILE File with glob patterns to exclude
--exclude PATTERN Glob pattern to exclude
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 15:01:31 +0000 (17:01 +0200)]
hush: fix prompt in multi-line $(())
Now shows PS2 in this case:
/path/to/dir $ a=b; echo $((
> _
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 13:50:30 +0000 (15:50 +0200)]
libbb: switch bb_ask_noecho() to "mallocing" string return API
function old new delta
bb_ask_noecho 313 330 +17
get_cred_or_die 125 115 -10
passwd_main 995 958 -37
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 17/-47) Total: -30 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 13:21:35 +0000 (15:21 +0200)]
xargs: use bb_ask_y_confirmation_FILE() instead of homegrown copy
function old new delta
bb_ask_y_confirmation_FILE - 83 +83
inetd_main 2033 2043 +10
udhcp_send_kernel_packet 295 301 +6
rmescapes 306 310 +4
send_tree 353 355 +2
i2cdetect_main 674 672 -2
confirm_or_abort 43 38 -5
get_terminal_width_height 242 234 -8
bb_ask_y_confirmation 76 10 -66
xargs_main 823 755 -68
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/5 up/down: 105/-149) Total: -44 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 13:08:12 +0000 (15:08 +0200)]
libbb: rename bb_ask -> bb_ask_noecho, bb_ask_confirmation -> bb_ask_y_confirmation
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 13:02:20 +0000 (15:02 +0200)]
telnet: move winsize detection closer to I/O loop, delete non-functioning debug code
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 12:18:42 +0000 (14:18 +0200)]
ftpd: allow -A if !FTPD_AUTHENTICATION as well
Users will be able to use "ftpd -A" in scripts regardless of build config
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 12:02:21 +0000 (14:02 +0200)]
ftpd: added -A option to disable all authentication, closes 10921
function old new delta
packed_usage 32745 32777 +32
ftpd_main 2162 2156 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 32/-6) Total: 26 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 7 Apr 2018 11:22:52 +0000 (13:22 +0200)]
wget,ftpd: shorten and reuse strings
function old new delta
wget_main 2382 2386 +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 4/0) Total: 4 bytes
text data bss dec hex filename
934228 477 7296 942001 e5fb1 busybox_old
934202 477 7296 941975 e5f97 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 6 Apr 2018 23:13:30 +0000 (01:13 +0200)]
httpd: do not default to Content-type: application/octet-stream
Instead, simply don't send this header.
On Mon, Apr 2, 2018 at 8:17 PM, xisd <xisd-dev@riseup.net> wrote:
> I had some trouble using busybox httpd to serve a static website and I
> thought the issue might be of interest.
>
> My problem is related to something that seem quite common for static
> site generator : the use of html files without the '.html' extension
> (it is called 'clean url'...)
>
> Most web server guess that these files are html and display them like
> any other .html files.
>
> From what I understood, the MIME type for files without extension in
> busybox htttp default settings is 'application/octet-stream', and
> because of that 'clean url' pages are not displayed.
>
> It is only trouble because I wanted to deploy my website on freshly
> installed linux without editing any configuration.
>
> The default MIME setting make sense to me as it is, I just thought that
> might be worth mentioning since the use of 'clean url' seem to be a
> common practice for static sites generators (the one I use is callled
> 'yellow' (https://github.com/datenstrom/yellow))
>
> Here is a link for the related issue on github :
> https://github.com/datenstrom/yellow/issues/317
function old new delta
send_headers 702 718 +16
send_headers_and_exit 23 20 -3
handle_incoming_and_exit 2794 2791 -3
send_file_and_exit 772 756 -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 16/-22) Total: -6 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 6 Apr 2018 17:05:53 +0000 (19:05 +0200)]
scripts/kconfig/mconf.c: survive is SIGWINCH is not defined
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 6 Apr 2018 16:55:35 +0000 (18:55 +0200)]
i386: make stack size optimization selectable, and allow i486 insns (bswap)
It's hard to imagine someone still using non-bswap equipped CPU
function old new delta
xmalloc_optname_optval 888 879 -9
write_leases 214 205 -9
write32 36 27 -9
update_status 612 603 -9
udhcpd_main 1468 1459 -9
udhcpc_main 2708 2699 -9
udhcp_run_script 804 795 -9
sha256_process_block64 423 414 -9
sha1_process_block64 337 328 -9
sha1_end 80 71 -9
send_ACK 161 152 -9
select_lease_time 64 55 -9
rpm_getint 118 109 -9
readprofile_main 1719 1710 -9
read32 33 24 -9
rdate_main 236 227 -9
machtime 39 30 -9
inet_addr_match 103 94 -9
get_prefix 344 335 -9
f_write32 31 22 -9
f_read32 31 22 -9
dumpleases_main 620 611 -9
KeyExpansion 197 188 -9
udhcp_str2optset 536 518 -18
read_config 222 204 -18
lfp_to_d 55 37 -18
ipaddr_modify 1226 1208 -18
dnsd_main 1278 1260 -18
des_crypt 1344 1326 -18
d_to_lfp 106 88 -18
bb_bswap_64 29 11 -18
INET_setroute 827 809 -18
read_leases 330 309 -21
zcip_main 1256 1229 -27
send_offer 476 449 -27
ipcalc_main 534 507 -27
handle_incoming_and_exit 2821 2794 -27
fmt_time_bernstein_25 131 104 -27
common_traceroute_main 3804 3768 -36
rpm_gettags 451 397 -54
parse_args 1412 1358 -54
volume_id_probe_hfs_hfsplus 627 564 -63
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/42 up/down: 0/-732) Total: -732 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 6 Apr 2018 16:26:33 +0000 (18:26 +0200)]
placate gcc-8.0.1 warnings
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 6 Apr 2018 15:58:21 +0000 (17:58 +0200)]
hush: fix "unset PS1/PS2", and put them into initial variable set
"unset PS1/PS2" causes prompts to be empty strings
function old new delta
hush_main 1031 1089 +58
goto_new_line 27 33 +6
fgetc_interactive 244 245 +1
unset_local_var 155 149 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 65/-6) Total: 59 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 6 Apr 2018 14:44:50 +0000 (16:44 +0200)]
sort: smaller and more agressive FEATURE_SORT_OPTIMIZE_MEMORY
function old new delta
sort_main 1098 1037 -61
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 6 Apr 2018 12:57:53 +0000 (14:57 +0200)]
hush: if we did match "LINENO" or "OPTIND", stop further comparisons
function old new delta
handle_changed_special_names 99 101 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 6 Apr 2018 12:50:12 +0000 (14:50 +0200)]
hush: consolidate handling of setting/unsetting of PSn, LINENO, OPTIND
function old new delta
handle_changed_special_names - 99 +99
unset_local_var 256 155 -101
set_local_var 557 437 -120
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 99/-221) Total: -122 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 5 Apr 2018 15:04:53 +0000 (17:04 +0200)]
hush: update to correctly handle changed var_bash[346].tests
function old new delta
expand_one_var 1612 1604 -8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 5 Apr 2018 14:46:49 +0000 (16:46 +0200)]
hush: implement "hush -s"
function old new delta
hush_main 1015 1031 +16
packed_usage 32757 32745 -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 16/-12) Total: 4 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 5 Apr 2018 13:21:34 +0000 (15:21 +0200)]
placate gcc 8.0.1 sprintf overflow warnings in config tools
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 5 Apr 2018 13:15:53 +0000 (15:15 +0200)]
hush: fix a few more corner cases with empty-expanding `cmds`
See added testcases
function old new delta
run_pipe 1723 1784 +61
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 5 Apr 2018 12:41:21 +0000 (14:41 +0200)]
hush: fix corner cases with exec in empty expansions
Cases like these:
var=val exec >redir
var=val `` >redir
function old new delta
run_pipe 1701 1723 +22
redirect_and_varexp_helper 56 55 -1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 22/-1) Total: 21 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 5 Apr 2018 12:09:14 +0000 (14:09 +0200)]
hush: less mind-bending set_vars_and_save_old()
function old new delta
run_pipe 1651 1701 +50
set_local_var 510 557 +47
pseudo_exec_argv 544 581 +37
redirect_and_varexp_helper 64 56 -8
set_vars_and_save_old 164 149 -15
unset_local_var 274 256 -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/3 up/down: 134/-41) Total: 93 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 5 Apr 2018 11:10:34 +0000 (13:10 +0200)]
hush: "no logic changes" in last commit was not true, fix it up
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 5 Apr 2018 09:30:17 +0000 (11:30 +0200)]
hush: make run_pipe code simpler to understand, no logic changes
function old new delta
run_pipe 1641 1651 +10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 4 Apr 2018 22:51:55 +0000 (00:51 +0200)]
hush: fix a bug where we don't properly handle f() { a=A; b=B; }; a= f
function old new delta
unset_local_var 20 274 +254
leave_var_nest_level - 98 +98
set_vars_and_save_old 128 164 +36
enter_var_nest_level - 32 +32
builtin_local 46 50 +4
pseudo_exec_argv 554 544 -10
redirect_and_varexp_helper 77 64 -13
run_pipe 1890 1641 -249
unset_local_var_len 267 - -267
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 3/3 up/down: 424/-539) Total: -115 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 4 Apr 2018 20:32:59 +0000 (22:32 +0200)]
hush: make var nesting code independent of "local" support
Also, add code to abort at ~65000 function recursion depth.
SEGVing is not as nice as exiting with a message (and restoring termios!):
$ f() { echo -n .; f; }; f
....<many dots later>....hush: fatal recursion (depth 65281)
function old new delta
run_pipe 1826 1890 +64
pseudo_exec_argv 544 554 +10
parse_and_run_file 71 80 +9
i_getch 104 107 +3
done_command 99 102 +3
set_local_var 508 510 +2
helper_export_local 214 215 +1
builtin_local 49 46 -3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/1 up/down: 92/-3) Total: 89 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 4 Apr 2018 19:14:28 +0000 (21:14 +0200)]
hush: fix for readonly vars in "ro=A ro=B cmd" case
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 4 Apr 2018 15:07:21 +0000 (17:07 +0200)]
sort: move misplaced comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 4 Apr 2018 15:02:32 +0000 (17:02 +0200)]
sort: FEATURE_SORT_OPTIMIZE_MEMORY
On sorting all kernel/linux/arch/ *.[ch] files,
this reduces memory usage by 6%.
yes | head -
99999999 | sort
goes down from 1900Mb to 380 Mb.
function old new delta
sort_main 862 1098 +236
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 4 Apr 2018 11:59:53 +0000 (13:59 +0200)]
ash: unbreak PS1 parsing after "ash: parser: Add syntax stack..." commit
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 3 Apr 2018 12:56:52 +0000 (14:56 +0200)]
hush: support "f() (cmd)" functions
Many other shells support this construct
function old new delta
parse_stream 2950 3018 +68
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 3 Apr 2018 11:02:43 +0000 (13:02 +0200)]
hush: fix mishandling of "true | f() { echo QWE; }"
function old new delta
run_pipe 1820 1826 +6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 3 Apr 2018 09:21:13 +0000 (11:21 +0200)]
hush: fix "set -e; false || x=1; echo OK"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 3 Apr 2018 06:20:58 +0000 (08:20 +0200)]
hush: one-word, no-globbing handling of local/export/readonly args
function old new delta
done_word 738 790 +52
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 2 Apr 2018 19:00:59 +0000 (21:00 +0200)]
ash: parser: Fix parameter expansion inside inner double quotes
Upstream email:
parser: Fix parameter expansion inside inner double quotes
The parsing of parameter expansion inside inner double quotes
breaks because we never look for ENDVAR while innerdq is true.
echo "${x#"${x+''}"''}
This patch fixes it by pushing the syntax stack if innerdq is
true and we enter a new parameter expansion.
This patch also fixes a corner case where a bad substitution error
occurs within arithmetic expansion.
Reported-by: Denys Vlasenko <vda.linux@googlemail.com>
Fixes:
ab1cecb40478 (" parser: Add syntax stack for recursive...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
function old new delta
readtoken1 2880 2898 +18
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 2 Apr 2018 15:25:18 +0000 (17:25 +0200)]
hush: fix a backslash-removal bug in case
function old new delta
run_list 1270 1053 -217
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 2 Apr 2018 12:27:50 +0000 (14:27 +0200)]
ash: expand: Fix bugs with words connected to the right of $@
Upstream email:
This is actually composed of two bugs. First of all our tracking
of quotemark is wrong so anything after "$@" becomes quoted. Once
we fix that then the problem is that the first space character
after "$@" is not recognised as an IFS.
This patch fixes both.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 2 Apr 2018 11:34:57 +0000 (13:34 +0200)]
ash: redir: Fix typo in noclobber code
Upstream commit "redir: Fix typo in noclobber code"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 2 Apr 2018 11:29:20 +0000 (13:29 +0200)]
ash: parser: Fix single-quoted patterns in here-documents
Upstream commit:
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 9 Mar 2018 23:07:53 +0800
parser: Fix single-quoted patterns in here-documents
The script
x=*
cat <<- EOF
${x#'*'}
EOF
prints * instead of nothing as it should. The problem is that
when we're in sqsyntax context in a here-document, we won't add
CTLESC as we should. This patch fixes it:
Reported-by: Harald van Dijk <harald@gigawatt.nl>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 2 Apr 2018 11:26:16 +0000 (13:26 +0200)]
hush: remove stray debugging printout
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 2 Apr 2018 10:35:04 +0000 (12:35 +0200)]
ash: parser: Add syntax stack for recursive parsing
This closes 10821.
Upstream patch:
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 9 Mar 2018 00:14:02 +0800
parser: Add syntax stack for recursive parsing
Without a stack of syntaxes we cannot correctly these two cases
together:
"${a#'$$'}"
"${a#"${b-'$$'}"}"
A recursive parser also helps in some other corner cases such
as nested arithmetic expansion with paratheses.
This patch adds a syntax stack allocated from the stack using
alloca. As a side-effect this allows us to remove the naked
backslashes for patterns within double-quotes, which means that
EXP_QPAT also has to go.
This patch also fixes removes any backslashes that precede right
braces when they are present within a parameter expansion context,
and backslashes that precede double quotes within inner double
quotes inside a parameter expansion in a here-document context.
The idea of a recursive parser is based on a patch by Harald van
Dijk.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
var_bash3, var_bash4 and var_bash6 tests are updated
with the output given by bash-4.3.43
With this patch, the following tests now pass for ash:
dollar_repl_slash_bash2.tests
squote_in_varexp2.tests
squote_in_varexp.tests
var_bash4.tests
function old new delta
readtoken1 2615 2874 +259
synstack_push - 54 +54
evalvar 574 571 -3
rmescapes 330 310 -20
subevalvar 1279 1258 -21
argstr 1146 1107 -39
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/4 up/down: 313/-83) Total: 230 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 1 Apr 2018 18:11:23 +0000 (20:11 +0200)]
hush: update information comment about heredoc discrepancy
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 1 Apr 2018 17:59:37 +0000 (19:59 +0200)]
libbb: new function bb_die_memory_exhausted
function old new delta
bb_die_memory_exhausted - 10 +10
xstrdup 28 23 -5
xsetenv 27 22 -5
xrealloc 32 27 -5
xputenv 22 17 -5
xmalloc 30 25 -5
xfdopen_helper 40 35 -5
xasprintf 44 39 -5
wget_main 2387 2382 -5
open_socket 54 49 -5
glob_brace 419 414 -5
bb_get_chunk_from_file 146 141 -5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/11 up/down: 10/-55) Total: -45 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Quentin Rameau [Sun, 1 Apr 2018 17:49:58 +0000 (19:49 +0200)]
sed: prevent overflow of length from bb_get_chunk_from_file
This fragment did not work right:
temp = bb_get_chunk_from_file(fp, &len);
if (temp) {
/* len > 0 here, it's ok to do temp[len-1] */
char c = temp[len-1];
With "int len" _sign-extending_, temp[len-1] can refer to a wrong location
if len > 0x7fffffff.
Signed-off-by: Quentin Rameau <quinq@fifth.space>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Quentin Rameau [Sun, 1 Apr 2018 15:05:35 +0000 (17:05 +0200)]
libbb: remove unnecessary variable in xmalloc_fgets
Signed-off-by: Quentin Rameau <quinq@fifth.space>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 1 Apr 2018 16:55:00 +0000 (18:55 +0200)]
hush: add a comment where we differ from bash wrt heredoc EOF mark handling
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 1 Apr 2018 14:38:32 +0000 (16:38 +0200)]
parser: Fix backquote support in here-document EOF mark
Upstream commit:
Author: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu Mar 15 18:27:30 2018 +0800
parser: Fix backquote support in here-document EOF mark
Currently using backquotes in a here-document EOF mark is broken
because dash tries to do command substitution on it. This patch
fixes it by checking whether we're looking for an EOF mark during
tokenisation.
Reported-by: Harald van Dijk <harald@gigawatt.nl>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
With added fix for quoted-ness of the EOF mark.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 1 Apr 2018 01:04:55 +0000 (03:04 +0200)]
ash,hush: handle a few more bkslash-newline cases
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 31 Mar 2018 18:31:13 +0000 (20:31 +0200)]
shells: fix var_LINENO1.tests false positive, add it to ash tests too
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 31 Mar 2018 18:16:31 +0000 (20:16 +0200)]
hush: fix heredoc_bkslash_newline1.tests failure
function old new delta
parse_stream 2787 2827 +40
builtin_type 117 115 -2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 31 Mar 2018 17:21:31 +0000 (19:21 +0200)]
ash: use pgetc_eatbnl() in more places
Part of upstream commit:
Date: Thu Mar 8 08:37:11 2018 +0100
Author: Harald van Dijk <harald@gigawatt.nl>
parser: use pgetc_eatbnl() in more places
dash has a pgetc_eatbnl function in parser.c which skips any
backslash-newline combinations. It's not used everywhere it could be.
There is also some duplicated backslash-newline handling elsewhere in
parser.c. Replace most of the calls to pgetc() with calls to
pgetc_eatbnl() and remove the duplicated backslash-newline handling.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Not adding "readtoken1(pgetc_eatbnl(), DQSYNTAX..." changes, since
readtoken1() handles the "starts with backslash + newline" case itself.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Martijn Dekker [Sat, 31 Mar 2018 16:15:59 +0000 (18:15 +0200)]
ash: 'nolog' and 'debug' options cause "$-" to wreak havoc
Upstream commit:
Date: Tue Mar 6 17:40:37 2018 +0000
expand: 'nolog' and 'debug' options cause "$-" to wreak havoc
Op 29-03-17 om 20:02 schreef Martijn Dekker:
> Bug: if either the 'nolog' or the 'debug' option is set, trying to
> expand "$-" silently aborts parsing of an entire argument.
>
> $ dash -o nolog -c 'set -fuC; echo "|$- are the options|"; set +o nolog; echo "|$- are the options|"'
> |
> |uCf are the options|
> $ dash -o debug -c 'set -fuC; echo "|$- are the options|"; set +o debug; echo "|$- are the options|"'
> |
> |uCf are the options|
This turned out to be easy to fix. The routine producing the "$-"
expansion failed to skip options for which there is no option letter,
but only a long-form name. In dash, 'nolog' and 'debug' are currently
the only two such options. Patch below.
- Martijn
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
In bbox ash, pipefail is the option which exhibited this.
Signed-off-by: Martijn Dekker <martijn@inlv.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 31 Mar 2018 00:45:22 +0000 (02:45 +0200)]
stat: fix a typo: s/romfs/ramfs/, closes 10876
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 30 Mar 2018 22:46:07 +0000 (00:46 +0200)]
hush: fix a signedness bug
Testcase:
set -- a ""; space=" "; printf "<%s>\n" "$@"$space
Before:
<a >
After:
<a>
<>
It usually does not bite since bbox forces -funsigned-char build.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 30 Mar 2018 21:25:24 +0000 (23:25 +0200)]
ash,hush: new test dollar_repl_slash_bash2.tests
This fails for ash. hush works.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 30 Mar 2018 21:03:29 +0000 (23:03 +0200)]
ash: fix "char == CTLfoo" comparison signedness bug
It usually does not bite since bbox forces -funsigned-char build.
But for some reason void linux people disabled that.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 30 Mar 2018 20:15:14 +0000 (22:15 +0200)]
ash: use F_DUPFD_CLOEXEC and O_CLOEXEC
function old new delta
setjobctl 371 367 -4
setinputfile 226 220 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10) Total: -10 bytes
Based on patch by Mark Marshall <mark.marshall@omicronenergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 30 Mar 2018 18:49:16 +0000 (20:49 +0200)]
examples/var_service: new example: dnsmasq service
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Natanael Copa [Fri, 30 Mar 2018 18:18:12 +0000 (20:18 +0200)]
cpio: extract "unsafe" symlinks the same way tar/unzip does
function old new delta
cpio_main 588 596 +8
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 30 Mar 2018 18:02:33 +0000 (20:02 +0200)]
svok: new applet (daemontools compat)
function old new delta
svok_main - 127 +127
packed_usage 32705 32757 +52
applet_names 2756 2761 +5
applet_main 1588 1592 +4
bb_banner 46 47 +1
sv 1286 1284 -2
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/1 up/down: 189/-2) Total: 187 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 30 Mar 2018 09:14:46 +0000 (11:14 +0200)]
ifplugd service example: always run up/down script on startup
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Stefan Agner [Thu, 29 Mar 2018 12:12:31 +0000 (14:12 +0200)]
ifplugd: if SIOCSIFFLAGS fails with EADDRNOTAVAIL, don't die
When using ifplugd on a RNDIS interface with monitor mode, using
SIOCSIFFLAGS seems to fail with EADDRNOTAVAIL. Treat it the same
as if iface disappeared again.
This has been observed on a Tegra TK1 using Linux 4.14. There seem
to be a race when the kernel is creating the device:
ifplugd(usb0): started: BusyBox v1.24.1 (2018-03-27 09:47:48 CEST)
ifplugd(usb0): interface doesn't exist, waiting
ifplugd(usb0): interface appeared
ifplugd(usb0): upping interface
ifplugd(usb0): setting interface flags failed: Cannot assign requested address
<exit>
With this patch ifplugd is successful in upping the device the second
time around:
ifplugd(usb0): upping interface
ifplugd(usb0): using SIOCETHTOOL detection mode
ifplugd(usb0): interface appeared
ifplugd(usb0): upping interface
ifplugd(usb0): setting interface flags failed: Cannot assign requested address
ifplugd(usb0): interface appeared
ifplugd(usb0): upping interface
ifplugd(usb0): using SIOCETHTOOL detection mode
ifplugd(usb0): link is up
ifplugd(usb0): executing '/etc/ifplugd/ifplugd.usb.action usb0 up'
ifplugd up
ifplugd(usb0): exit code: 0
function old new delta
up_iface 120 127 +7
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Peter Korsgaard [Thu, 29 Mar 2018 11:35:01 +0000 (13:35 +0200)]
fbsplash: support configurable image position
For some setups (E.G. for supporting different screen resolutions),
positioning the image somewhere else than the top left corner may be
interesting.
Add support for IMG_LEFT/IMG_TOP settings to specify the image location,
similar to how it is done for the progress bar.
function old new delta
fbsplash_main 994 1038 +44
static.param_names 57 74 +17
packed_usage 32631 32647 +16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 77/0) Total: 77 bytes
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 29 Mar 2018 16:03:50 +0000 (18:03 +0200)]
grep: fix echo "aa" | busybox grep -F -w "a" (should not match)
function old new delta
grep_file 1461 1470 +9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 29 Mar 2018 14:00:30 +0000 (16:00 +0200)]
fstrim: do not check that specified file is on a block device
Kernel will surely inform us in FITRIM does not make sense on a given file.
function old new delta
fstrim_main 241 221 -20
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 28 Mar 2018 16:42:54 +0000 (18:42 +0200)]
hush: add a FIXME comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 28 Mar 2018 16:35:07 +0000 (18:35 +0200)]
ash,hush: fix "saved" redirected fds still visible in children
Based on a patch by Mark Marshall <mark.marshall@omicronenergy.com>
function old new delta
dup_CLOEXEC - 49 +49
fcntl_F_DUPFD 46 - -46
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 28 Mar 2018 15:12:56 +0000 (17:12 +0200)]
libbb: use BUILD_BUG_ON in utoa_to_buf()
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kaarle Ritvanen [Tue, 27 Mar 2018 22:00:03 +0000 (00:00 +0200)]
ifupdown: do not fail if interface disappears during ifdown
Interface may not exist because it got deleted by an ifdown hook script
earlier. This may happen when a virtual interface, such as VLAN, has multiple
iface blocks defined.
function old new delta
static_down6 14 40 +26
static_down 54 70 +16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 42/0) Total: 42 bytes
Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 27 Mar 2018 21:54:54 +0000 (23:54 +0200)]
ioctl(SIOCGIFINDEX) does not require clearing of entire ifr
function old new delta
INET6_setroute 492 472 -20
do_iplink 1357 1330 -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-47) Total: -47 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Mark Marshall [Mon, 19 Mar 2018 09:45:40 +0000 (10:45 +0100)]
netstat: produce numeric-ip output for non-resolved names
If we don't ask for numerical output, and the symbolic look-up failed
we used to get "(null)", but the numeric output would be better.
function old new delta
ip_port_str 109 121 +12
Signed-off-by: Mark Marshall <mark.marshall@omicronenergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Tue, 20 Mar 2018 10:41:28 +0000 (11:41 +0100)]
ssl_client: fix option parsing
The wrong character was used to indicate options taking an integer
parameter.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 19 Mar 2018 19:00:10 +0000 (20:00 +0100)]
top: fix "warning: unused variable new_mask"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 16 Mar 2018 03:02:23 +0000 (04:02 +0100)]
tar: add -o and -k to short --help too
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 16 Mar 2018 02:55:14 +0000 (03:55 +0100)]
tar: add -k and -o to --help
-o Don't restore user:group
-k Don't replace existing files
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 11 Mar 2018 22:02:50 +0000 (23:02 +0100)]
tcpsvd: fix fallout from opt_complementary removal
text data bss dec hex filename
933035 473 6836 940344 e5938 busybox_old
933051 473 6836 940360 e5948 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 11 Mar 2018 18:35:58 +0000 (19:35 +0100)]
readprofile: code shrink
function old new delta
defaultpro 14 - -14
defaultmap 17 - -17
readprofile_main 1762 1719 -43
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/1 up/down: 0/-74) Total: -74 bytes
text data bss dec hex filename
933081 473 6836 940390 e5966 busybox_old
933035 473 6836 940344 e5938 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 11 Mar 2018 16:08:02 +0000 (17:08 +0100)]
ntpd: choose initial FREQHOLD_cnt dynamically
function old new delta
update_local_clock 834 858 +24
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 11 Mar 2018 10:34:44 +0000 (11:34 +0100)]
udhcpd: clamp down huge auto_times to ~2M seconds, better EINTR poll handling
EINTR _should_ only happen on two signals we trap, and safe_poll
_should_ work here just fine, but there were kernel bugs where spurious EINTRs
happen (e.g. on ptrace attach). Be safe.
function old new delta
udhcpd_main 1437 1468 +31
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 10 Mar 2018 20:25:53 +0000 (21:25 +0100)]
ntpd: suppress in-kernel frequency correction in first 8 adjtimex calls
In other words: try to correct initially existing clock offset first,
before assuming that our clock drifts.
function old new delta
update_local_clock 826 834 +8
ntp_init 550 557 +7
filter_datapoints 179 173 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 15/-6) Total: 9 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 10 Mar 2018 18:01:48 +0000 (19:01 +0100)]
udhcpd: fix "not dying on SIGTERM"
Fixes:
commit
52a515d18724bbb34e3ccbbb0218efcc4eccc0a8
"udhcp: use poll() instead of select()"
Feb 16 2017
udhcp_sp_read() is meant to check whether signal pipe indeed has some data to read.
In the above commit, it was changed as follows:
- if (!FD_ISSET(signal_pipe.rd, rfds))
+ if (!pfds[0].revents)
return 0;
The problem is, the check was working for select() purely by accident.
Caught signal interrupts select()/poll() syscalls, they return with EINTR
(regardless of SA_RESTART flag in sigaction). _Then_ signal handler is invoked.
IOW: they can't see any changes to fd state caused by signal haldler
(in our case, signal handler makes signal pipe ready to be read).
For select(), it means that rfds[] bit array is unmodified, bit of signal
pipe's read fd is still set, and the above check "works": it thinks select()
says there is data to read.
This accident does not work for poll(): .revents stays clear, and we do not
try reading signal pipe as we should. In udhcpd, we fall through and block
in socket read. Further SIGTERM signals simply cause socket read to be
interrupted and then restarted (since SIGTERM handler has SA_RESTART=1).
Fixing this as follows: remove the check altogether. Set signal pipe read fd
to nonblocking mode. Always read it in udhcp_sp_read().
If read fails, assume it's EAGAIN and return 0 ("no signal seen").
udhcpd avoids reading signal pipe on every recvd packet by looping if EINTR
(using safe_poll()) - thus ensuring we have correct .revents for all fds -
and calling udhcp_sp_read() only if pfds[0].revents!=0.
udhcpc performs much fewer reads (typically it sleeps >99.999% of the time),
there is no need to optimize it: can call udhcp_sp_read() after each poll
unconditionally.
To robustify socket reads, unconditionally set pfds[1].revents=0
in udhcp_sp_fd_set() (which is before poll), and check it before reading
network socket in udhcpd.
TODO:
This might still fail: if pfds[1].revents=POLLIN, socket read may still block.
There are rare cases when select/poll indicates that data can be read,
but then actual read still blocks (one such case is UDP packets with
wrong checksum). General advise is, if you use a poll/select loop,
keep all your fds nonblocking.
Maybe we should also do that to our network sockets?
function old new delta
udhcp_sp_setup 55 65 +10
udhcp_sp_fd_set 54 60 +6
udhcp_sp_read 46 36 -10
udhcpd_main 1451 1437 -14
udhcpc_main 2723 2708 -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/3 up/down: 16/-39) Total: -23 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 8 Mar 2018 15:06:18 +0000 (16:06 +0100)]
remove stray newline in "iplink --help"
function old new delta
packed_usage 32547 32550 +3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 8 Mar 2018 14:55:07 +0000 (15:55 +0100)]
ip: fix "ip -oneline a"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 8 Mar 2018 12:23:06 +0000 (13:23 +0100)]
ipcs: further code shrink
function old new delta
packed_usage 32543 32547 +4
ipcs_main 1014 980 -34
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 4/-34) Total: -30 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 8 Mar 2018 12:10:23 +0000 (13:10 +0100)]
ipcs: code shrink
function old new delta
packed_usage 32539 32543 +4
format 1 - -1
do_shm 883 880 -3
do_sem 636 633 -3
do_msg 782 779 -3
ipcs_main 1049 1014 -35
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/4 up/down: 4/-45) Total: -41 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 8 Mar 2018 11:47:13 +0000 (12:47 +0100)]
md5sum: use config help text similar to other "sum" tools
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 7 Mar 2018 03:47:52 +0000 (04:47 +0100)]
top: much faster cursor key navigation by avoiding process rescan
function old new delta
handle_input 549 560 +11
top_main 889 891 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 7 Mar 2018 03:20:22 +0000 (04:20 +0100)]
top: do unsigned rather than signed division in do_stats()
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
projects / oweals / busybox.git / log