busybox.git/miscutils/less.c, branch master Unnamed repository; edit this file 'description' to name the repository. shell: fix race between signal handlers setting bb_got_signal and poll() 2025-07-02T20:42:47+00:00 Denys Vlasenko vda.linux@googlemail.com 2025-07-02T20:42:47+00:00 36ac283682bb176987c0c09e5f8c7e7e96fb1651 function old new delta __ppoll_time64 - 211 +211 check_got_signal_and_poll - 164 +164 read_key 607 601 -6 shell_builtin_read 1328 1318 -10 ------------------------------------------------------------------------------ (add/remove: 4/0 grow/shrink: 0/2 up/down: 375/-16) Total: 359 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
function                                             old     new   delta
__ppoll_time64                                         -     211    +211
check_got_signal_and_poll                              -     164    +164
read_key                                             607     601      -6
shell_builtin_read                                  1328    1318     -10
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 0/2 up/down: 375/-16)           Total: 359 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ash,hush: fix handling of SIGINT while waiting for interactive input 2022-01-17T10:46:23+00:00 Denys Vlasenko vda.linux@googlemail.com 2022-01-17T02:02:40+00:00 12566e7f9b5e5c5d445bc4d36991d134b431dc6c function old new delta lineedit_read_key 160 237 +77 __pgetc 522 589 +67 fgetc_interactive 244 309 +65 safe_read_key - 39 +39 read_key 588 607 +19 record_pending_signo 23 32 +9 signal_handler 75 81 +6 .rodata 104312 104309 -3 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 6/1 up/down: 282/-3) Total: 279 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
function                                             old     new   delta
lineedit_read_key                                    160     237     +77
__pgetc                                              522     589     +67
fgetc_interactive                                    244     309     +65
safe_read_key                                          -      39     +39
read_key                                             588     607     +19
record_pending_signo                                  23      32      +9
signal_handler                                        75      81      +6
.rodata                                           104312  104309      -3
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 6/1 up/down: 282/-3)            Total: 279 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
libbb: code shrink: introduce and use [_]exit_SUCCESS() 2022-01-05T21:16:06+00:00 Denys Vlasenko vda.linux@googlemail.com 2022-01-05T21:16:06+00:00 db5546ca101846f18294a43b39883bc4ff53613a function old new delta exit_SUCCESS - 7 +7 _exit_SUCCESS - 7 +7 run_pipe 1562 1567 +5 pseudo_exec_argv 399 400 +1 finish 86 87 +1 start_stop_daemon_main 1109 1107 -2 shutdown_on_signal 38 36 -2 runsv_main 1662 1660 -2 redirect 1070 1068 -2 read_line 79 77 -2 pause_and_low_level_reboot 54 52 -2 list_i2c_busses_and_exit 483 481 -2 less_exit 12 10 -2 identify 4123 4121 -2 grep_file 1161 1159 -2 getty_main 1519 1517 -2 fsck_minix_main 2681 2679 -2 free_session 132 130 -2 fdisk_main 4739 4737 -2 clean_up_and_exit 53 51 -2 bsd_select 1566 1564 -2 bb_daemonize_or_rexec 198 196 -2 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 3/17 up/down: 21/-34) Total: -13 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
function                                             old     new   delta
exit_SUCCESS                                           -       7      +7
_exit_SUCCESS                                          -       7      +7
run_pipe                                            1562    1567      +5
pseudo_exec_argv                                     399     400      +1
finish                                                86      87      +1
start_stop_daemon_main                              1109    1107      -2
shutdown_on_signal                                    38      36      -2
runsv_main                                          1662    1660      -2
redirect                                            1070    1068      -2
read_line                                             79      77      -2
pause_and_low_level_reboot                            54      52      -2
list_i2c_busses_and_exit                             483     481      -2
less_exit                                             12      10      -2
identify                                            4123    4121      -2
grep_file                                           1161    1159      -2
getty_main                                          1519    1517      -2
fsck_minix_main                                     2681    2679      -2
free_session                                         132     130      -2
fdisk_main                                          4739    4737      -2
clean_up_and_exit                                     53      51      -2
bsd_select                                          1566    1564      -2
bb_daemonize_or_rexec                                198     196      -2
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/17 up/down: 21/-34)           Total: -13 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
less: code shrink 2022-01-05T21:04:21+00:00 Denys Vlasenko vda.linux@googlemail.com 2022-01-05T21:04:21+00:00 076f5e064fa7b6cc2c03b030abcf2cbd60514180 function old new delta restore_tty - 29 +29 less_main 2107 2105 -2 getch_nowait 253 251 -2 buffer_print 614 612 -2 less_exit 51 12 -39 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/4 up/down: 29/-45) Total: -16 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
function                                             old     new   delta
restore_tty                                            -      29     +29
less_main                                           2107    2105      -2
getch_nowait                                         253     251      -2
buffer_print                                         614     612      -2
less_exit                                             51      12     -39
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/4 up/down: 29/-45)            Total: -16 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
less: Ignore -X 2021-09-28T21:22:47+00:00 Ismael Luceno ismael@iodev.co.uk 2021-09-28T19:47:49+00:00 35727f5741b0c06ab53769e400c2074d2e77a77b The flag disables termcap init/deinit of the terminal, which the applet doesn't do anyway. Signed-off-by: Ismael Luceno <ismael@iodev.co.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
The flag disables termcap init/deinit of the terminal, which the applet
doesn't do anyway.

Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
config: update size information 2018-12-28T02:20:17+00:00 Denys Vlasenko vda.linux@googlemail.com 2018-12-28T02:20:17+00:00 b097a84d62dcfcf201a695b54bcfafae70cac8a6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
less: fix fallout from "use common routine to set raw termios" 2018-04-16T08:24:48+00:00 Denys Vlasenko vda.linux@googlemail.com 2018-04-16T08:24:48+00:00 058a153b6970660f3c284ac259986ae87507df9a Testcase: (sleep 10; ls) | busybox less [...] ~ LICENSE ~ Makefile ~ Makefile.custom ~ Makefile.flags [...] less did not want this part: + /* dont convert NL to CR+NL on output */ + newterm->c_oflag &= ~(ONLCR); function old new delta get_termios_and_make_raw 108 115 +7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
Testcase: (sleep 10; ls) | busybox less

[...]
~           LICENSE
~                  Makefile
~                          Makefile.custom
~                                         Makefile.flags
[...]

less did not want this part:
+		/* dont convert NL to CR+NL on output */
+		newterm->c_oflag &= ~(ONLCR);

function                                             old     new   delta
get_termios_and_make_raw                             108     115      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
less: remove unnecessary message 2018-04-15T11:14:51+00:00 Denys Vlasenko vda.linux@googlemail.com 2018-04-15T11:14:51+00:00 50aea2786b275c1f1d5f1b2df85b519dbaef6188 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
less: implement -F 2018-04-15T11:13:34+00:00 Aaro Koskinen aaro.koskinen@iki.fi 2018-04-14T22:24:24+00:00 36941503bd8e28a1fac13edffc3ffc84346b32c5 Implement -F option: Exit if entire file fits on first screen. function old new delta buffer_print 622 633 +11 less_main 2446 2449 +3 buffer_fill_and_print 169 172 +3 packed_usage 32258 32236 -22 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 17/-22) Total: -5 bytes Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
Implement -F option: Exit if entire file fits on first screen.

function                                             old     new   delta
buffer_print                                         622     633     +11
less_main                                           2446    2449      +3
buffer_fill_and_print                                169     172      +3
packed_usage                                       32258   32236     -22
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 17/-22)             Total: -5 bytes

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
less: accept -R option. Closes 10816 2018-02-27T10:47:51+00:00 Denys Vlasenko vda.linux@googlemail.com 2018-02-27T10:47:51+00:00 0e0209ac5312fb0a4cf740f59e3564c6549f4d77 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>