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Author SHA1 Message Date
Denys Vlasenko
1237d627e9 hush: fix this case: echo "SCRIPT" | hush 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-25 19:01:49 +01:00
Denys Vlasenko
46a71dc30c hush: if !EDITING, do not regenerate prompt for every input char 
function                                             old     new   delta
fgetc_interactive                                    261     258      -3
pseudo_exec_argv                                     406     399      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10)             Total: -10 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-25 18:49:29 +01:00
Lauri Kasanen
6cfec7dd02 mount: Surround syslog.h with the config check 
This lets bb mount build for limited targets without syslog.h,
as long as the parts using it like NFS are disabled.

Signed-off-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-25 18:15:37 +01:00
Denys Vlasenko
51a471d05d ash: change "clear ungetc counter on syntax errors" fix to match dash 
function                                             old     new   delta
ash_main                                            1203    1210      +7
raise_exception                                       39      26     -13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 7/-13)              Total: -6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-24 00:22:24 +01:00
Denys Vlasenko
521220ed1a hush: fix ^C in INTERACTIVE, !EDITING config 
function                                             old     new   delta
refill_HFILE_and_getc                                 88     170     +82
fgetc_interactive                                    226     250     +24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 106/0)             Total: 106 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-23 23:44:55 +01:00
Denys Vlasenko
18bcaf374c hush: revert "make interactive ^C break out of PS2 mode" 
It made ^C break out of the entire shell, if we aren't in PS2 mode.
Need a better idea.

function                                             old     new   delta
expand_one_var                                      2344    2353      +9
syntax_error_unterm_ch                                21      29      +8
parse_dollar                                         817     824      +7
parse_stream                                        2251    2238     -13
fgetc_interactive                                    249     227     -22
syntax_error_unterm_str                               26       -     -26
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 3/2 up/down: 24/-61)            Total: -37 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-23 23:01:18 +01:00
Denys Vlasenko
649acb9e23 hush: fix PS1 prompth in !EDITING config 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-23 15:29:13 +01:00
Denys Vlasenko
a7b52d26c4 hush: fix fallout from tweaking ${var:START:LEN} code 
function                                             old     new   delta
expand_one_var                                      2344    2353      +9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-23 12:38:03 +01:00
Denys Vlasenko
93e2a22482 shell: for signal exitcode, use 128 | sig, not 128 + sig - MIPS has signal 128 
function                                             old     new   delta
wait_for_child_or_signal                             213     214      +1
refill_HFILE_and_getc                                 89      88      -1
getstatus                                             97      96      -1
builtin_wait                                         339     337      -2
checkjobs                                            187     183      -4
process_wait_result                                  450     444      -6
waitcmd                                              290     281      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/6 up/down: 1/-23)             Total: -22 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-23 12:23:21 +01:00
Denys Vlasenko
0ab2dd4f28 hush: fix comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-23 02:22:08 +01:00
Denys Vlasenko
6297d66eda factor: fix comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-23 02:03:04 +01:00
Denys Vlasenko
6452c30036 factor: detect squares 
If we have a square, the speedup can be extremely large
(in best case example below, it's ~40000 times faster):

$ time ./busybox_old factor 18446743988964486098
18446743988964486098: 2 3037000493 3037000493
real	0m4.246s
$ time ./busybox factor 18446743988964486098
18446743988964486098: 2 3037000493 3037000493
real	0m0.000s

function                                             old     new   delta
isqrt_odd                                              -      57     +57
print_w                                                -      36     +36
factorize                                            218     236     +18
print_h                                                -       7      +7
factorize_numstr                                      65      72      +7
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 2/0 up/down: 125/0)             Total: 125 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-22 20:24:30 +01:00
Denys Vlasenko
96717d9fb4 lineedit: code shrink 
function                                             old     new   delta
read_line_input                                     3171    3157     -14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-21 22:50:23 +01:00
Denys Vlasenko
fae7332ebf lineedit: add a comment about possible use of tcflush() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-21 21:55:03 +01:00
Denys Vlasenko
00eb23b47a bc: do not allocate line editing state until needed 
function                                             old     new   delta
xc_read_line                                         324     353     +29
free_line_input_t                                     34      39      +5
xc_vm_init                                           656     640     -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 34/-16)             Total: 18 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-21 21:36:58 +01:00
Andy Shevchenko
e4202df091 modprobe: Add support for modprobe.blacklist=module1,module2,... 
function                                             old     new   delta
parse_and_add_kcmdline_module_options                  -     186    +186
modprobe_main                                        713     798     +85
do_modprobe                                          648     451    -197
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 271/-197)           Total: 74 bytes

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-21 21:15:35 +01:00
Denys Vlasenko
07abc7c6f7 hush: deal with FIXMEs for corner cases in parameter expansion 
function                                             old     new   delta
expand_one_var                                      2323    2344     +21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-21 10:14:18 +01:00
Denys Vlasenko
901d2c3862 factor: fix typo in undef 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-21 07:45:08 +01:00
Denys Vlasenko
3e544d6ec7 factor: code shrink 
function                                             old     new   delta
factor_main                                          176     171      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-21 07:22:55 +01:00
Denys Vlasenko
f079f91371 factor: 30% faster trial division (better sieve) 
function                                             old     new   delta
packed_wheel                                           -     192    +192
factor_main                                          108     176     +68
factorize                                            284     218     -66
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 260/-66)           Total: 194 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-20 21:37:29 +01:00
Denys Vlasenko
bb4e32befa hush: remove one redundant getpid() on every startup 
function                                             old     new   delta
hush_main                                           1151    1147      -4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-20 16:36:00 +01:00
Denys Vlasenko
c8f6c1d775 ping6: add -w/-W NUM to --help 
function                                             old     new   delta
packed_usage                                       33515   33533     +18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-20 11:25:50 +01:00
Denys Vlasenko
bc2c1b4f86 ping: fix -wN to not think that one packet is always lost 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-20 11:16:32 +01:00
Denys Vlasenko
2124c0ec97 ash: clear ungetc counter on syntax errors 
function                                             old     new   delta
raise_exception                                       26      39     +13

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-19 14:33:02 +01:00
Denys Vlasenko
4152b41183 tftp: fix --help 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-19 00:33:06 +01:00
Denys Vlasenko
ddc6dfdb4d route: code shrink 
function                                             old     new   delta
kw_lookup                                             84      86      +2
tbl_hash_net_host                                     15      14      -1
tbl_verb                                              21      19      -2
tbl_ipvx                                             104      92     -12
packed_usage                                       33527   33493     -34
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/4 up/down: 2/-49)             Total: -47 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-19 00:07:13 +01:00
Denys Vlasenko
b164cdb854 help text tweaks, mainly expanding one for route 
function                                             old     new   delta
packed_usage                                       33485   33527     +42

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-18 23:33:19 +01:00
Denys Vlasenko
8cc3a744fb help text: use -P PORT form 
function                                             old     new   delta
packed_usage                                       33502   33491     -11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-18 22:51:46 +01:00
Denys Vlasenko
a2f18d950a help text tweaks 
function                                             old     new   delta
packed_usage                                       33570   33502     -68

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-18 04:12:51 +01:00
Denys Vlasenko
15733cb48e mount: if we race with other loop mount, we forget to close loop dev 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 23:38:06 +01:00
Denys Vlasenko
251e08ffa6 move ADJTIME_PATH define to header files 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 20:53:43 +01:00
Denys Vlasenko
a4c5cb2335 traceroute: fix --help text 
function                                             old     new   delta
traceroute_init                                     1151    1153      +2
packed_usage                                       33568   33570      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 4/0)                 Total: 4 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 18:17:03 +01:00
Denys Vlasenko
ff4ca18501 traceroute: avoid collecting target local address if !VERBOSE 
function                                             old     new   delta
common_traceroute_main                              1542    1537      -5
traceroute_init                                     1151    1101     -50
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-55)             Total: -55 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 17:47:49 +01:00
Denys Vlasenko
4bc59a4cf7 mount: fix a race when a free loop device is snatched under us by another mount. 
function                                             old     new   delta
set_loop                                             850     809     -41

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 15:05:14 +01:00
Denys Vlasenko
cd48f07117 mail: launch_helper(): flush stdio before vfork, set G.helper_pid only in parent 
function                                             old     new   delta
launch_helper                                        188     193      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 12:55:22 +01:00
Denys Vlasenko
b0e7cb4c3f mail: deobfuscate launch_helper() 
13 bytes are not worth the risk of doing something iffy after vfork().
Let's have much clearer code there.

function                                             old     new   delta
launch_helper                                        175     188     +13

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 12:51:58 +01:00
Denys Vlasenko
b6237c0657 mail: commonalize send_r_n() 
function                                             old     new   delta
send_mail_command                                     85      55     -30

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 12:34:25 +01:00
Denys Vlasenko
25b2680056 mail: move "opts" from globals 
function                                             old     new   delta
popmaildir_main                                      812     823     +11
sendmail_main                                       1295    1301      +6
makemime_main                                        291     288      -3
parse                                                970     966      -4
reformime_main                                       107     100      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/3 up/down: 17/-14)              Total: 3 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 12:24:50 +01:00
Denys Vlasenko
91e330a53f shells: a fix for systems without RLIMIT_NICE 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 12:07:54 +01:00
Denys Vlasenko
0723131628 Fixes for Hurd build 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-17 11:22:44 +01:00
Denys Vlasenko
bb15969333 libbb: do not compile selinux_or_die() if !SELINUX 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 23:00:51 +01:00
Denys Vlasenko
39646dce32 build system: make -static-libgcc selectable in config 
OpenWrt wants this off.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 21:53:05 +01:00
Denys Vlasenko
eb0c2e218c libbb: introduce and use xsettimeofday() 
function                                             old     new   delta
xsettimeofday                                          -      25     +25
rdate_main                                           274     260     -14
step_time                                            348     331     -17
set_kernel_timezone_and_clock                        119     102     -17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/3 up/down: 25/-48)            Total: -23 bytes
   text	   data	    bss	    dec	    hex	filename
1020753	    559	   5052	1026364	  fa93c	busybox_old
1020708	    559	   5052	1026319	  fa90f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 21:36:36 +01:00
Denys Vlasenko
d3c36882dc hwclock: improve --help (-l is a compatible shortcut for --localtime) 
function                                             old     new   delta
packed_usage                                       33605   33568     -37

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 20:55:30 +01:00
Denys Vlasenko
9e262f13c2 hwclock: fix musl breakage of settimeofday(tz) 
function                                             old     new   delta
set_kernel_timezone_and_clock                          -     119    +119
set_kernel_tz                                          -      28     +28
hwclock_main                                         480     301    -179
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/1 up/down: 147/-179)          Total: -32 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 14:00:47 +01:00
Denys Vlasenko
a97a795dcb lineedit: disable completion and fancy prompts if no shells are selected 
function                                             old     new   delta
get_previous_history                                  51      56      +5
get_next_history                                      47      52      +5
null_str                                               1       -      -1
beep                                                  10       -     -10
bb_msg_unknown                                        10       -     -10
bb_internal_setpwent                                  24       -     -24
remove_chunk                                          30       -     -30
goto_new_line                                         33       -     -33
bb_internal_endpwent                                  36       -     -36
deinit_S                                              51       -     -51
free_tab_completion_data                              54       -     -54
read_line_input                                     3171    3114     -57
rewind                                                68       -     -68
add_match                                             70       -     -70
complete_username                                     77       -     -77
quote_special_chars                                   78       -     -78
build_match_prefix                                   557       -    -557
complete_cmd_dir_file                                697       -    -697
parse_and_put_prompt                                 823      53    -770
input_tab                                            926       -    -926
------------------------------------------------------------------------------
(add/remove: 0/17 grow/shrink: 2/2 up/down: 10/-3549)       Total: -3539 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 11:14:08 +01:00
Denys Vlasenko
1d180cd749 lineedit: use strncmp instead of is_prefixed_with (we know the length) 
Also: add comments, rename some variables

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 11:00:20 +01:00
Denys Vlasenko
eaced1ec85 lineedit: remove ->path_lookup if ash is not configured 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 10:01:21 +01:00
Ron Yorston
8baa643a34 lineedit: match local directories when searching PATH 
When tab-completing a command we search PATH if the partial text
doesn't include a slash.  Also match subdirectories of the current
directory, in case the user intends to run a binary from one of
them.

function                                             old     new   delta
complete_cmd_dir_file                                894     917     +23
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 23/0)               Total: 23 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 09:38:25 +01:00
Ron Yorston
8506dd6730 lineedit: omit directories when tab-completing from PATH 
Only files should be matched when using PATH for tab-completion.

function                                             old     new   delta
complete_cmd_dir_file                                883     894     +11
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 11/0)               Total: 11 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 09:38:18 +01:00