Commit Graph

17317 Commits

Author SHA1 Message Date
Nicholas Niro
c28313bb17 ip: added support for setting netns on devices
function                                             old     new   delta
set_netns                                              -     130    +130
do_iplink                                           1252    1315     +63
.rodata                                           104173  104179      +6
packed_usage                                       34020   33993     -27
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/1 up/down: 199/-27)           Total: 172 bytes

Signed-off-by: Nicholas Niro <blowfist@xroutine.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07 23:24:56 +02:00
Denys Vlasenko
eb048a450c ps: fix -o pid=PID,args interpreting entire "PID,args" as header
procps-ng 3.3.15 does not do this.
(It could, allowing commas in headers and requiring
"ps -opid=PID -oargs" form for this case, but it does not).

function                                             old     new   delta
parse_o                                              167     190     +23

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07 21:55:16 +02:00
Ismael Luceno
421c8767ba find: Unify time comparisons
Split the common part into a function, to be reused.

The tail call is optimized, meaning now mmin/mtime just prepare arguments
and jump into the common code, thus near zero overhead.

This reduces code size slightly, e.g. on x86_64:
   text    data     bss     dec     hex filename
   4806       0       0    4806    12c6 findutils/find.o.orig
   4782       0       0    4782    12ae findutils/find.o

Of course, the savings are even greater when implementing atime/ctime
variants.

Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07 16:40:37 +02:00
Ismael Luceno
0084c44799 config: find: Fix mtime/mmin description
s/modified time/modification time/

Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07 16:38:32 +02:00
YU Jincheng
1f925038ab *: generalize "const trick"
While at it, change all "__asm__" to "asm"

Co-authored-by: canyie <31466456+canyie@users.noreply.github.com>
Signed-off-by: YU Jincheng <shana@zju.edu.cn>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07 15:22:35 +02:00
Denys Vlasenko
17e6fb06b3 tls: whitespace fix
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 21:22:36 +02:00
Denys Vlasenko
5e9c617021 tls: P256: sp_256_sub_8_p256_mod always subtracts in-place, use that
i386:

function                                             old     new   delta
sp_256_mont_reduce_8                                 245     243      -2
sp_256_mont_dbl_8                                     26      24      -2
sp_256_ecc_mulmod_8                                 1161    1157      -4
sp_256_proj_point_dbl_8                              359     353      -6
sp_256_sub_8_p256_mod                                 71      32     -39
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-53)             Total: -53 bytes

non-asm code:

function                                             old     new   delta
sp_256_sub_8_p256_mod                                  -      12     +12
sp_256_mont_reduce_8                                 250     243      -7
sp_256_mont_dbl_8                                     31      24      -7
sp_256_ecc_mulmod_8                                 1171    1157     -14
sp_256_proj_point_dbl_8                              374     353     -21
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/4 up/down: 12/-49)            Total: -37 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 20:19:30 +02:00
Denys Vlasenko
87e3f2e9f8 tls: P256: x86-64 optimized sp_256_sub_8_p256_mod
function                                             old     new   delta
sp_256_sub_8_p256_mod                                  -      53     +53
sp_256_mont_reduce_8                                 223     217      -6
sp_256_mont_dbl_8                                     38      32      -6
sp_256_ecc_mulmod_8                                 1535    1529      -6
sp_256_proj_point_dbl_8                              469     454     -15
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/4 up/down: 53/-33)             Total: 20 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 19:59:39 +02:00
Denys Vlasenko
911344a998 tls: P256: x86-64 assembly
function                                             old     new   delta
sp_256_mont_mul_8                                    127     155     +28
sp_256_proj_point_dbl_8                              448     469     +21
sp_256_mont_sub_8                                     23      35     +12
sp_256_mont_dbl_8                                     26      38     +12
sp_256_sub_8                                          44      49      +5
sp_256_ecc_mulmod_8                                 1530    1535      +5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/0 up/down: 83/0)               Total: 83 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 17:17:34 +02:00
Denys Vlasenko
22fd8fd3f4 tls: P256: tweak arm assembly (currently disabled)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 16:10:49 +02:00
Denys Vlasenko
d74993d31d tls: P@256: remove "header comment is kept intact" comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 14:28:47 +02:00
Denys Vlasenko
567eefcaf8 tls: P256: do not dumplicate sp_256_sub_8()
function                                             old     new   delta
sp_256_proj_point_dbl_8                              359     374     +15
sp_256_ecc_mulmod_8                                 1159    1171     +12
sp_256_mont_reduce_8                                 245     250      +5
sp_256_mont_dbl_8                                     26      31      +5
sp_256_sub_8_p256_mod                                 43       -     -43
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 4/0 up/down: 37/-43)             Total: -6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 14:25:54 +02:00
Denys Vlasenko
00f2cceb6a tls: P256: shrink sp_256_mul_add_8 a bit more
function                                             old     new   delta
sp_256_mont_reduce_8                                 257     245     -12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 10:15:29 +02:00
Denys Vlasenko
c784284615 tls: P256: propagate constants, create dedicated "subtract p256_mod" function
8 instances of this subtraction probably warrant a few bytes more of code.

function                                             old     new   delta
sp_256_sub_8_p256_mod                                  -      71     +71
sp_256_mont_sub_8                                      -      29     +29
sp_256_mont_dbl_8                                      -      26     +26
sp_256_mont_reduce_8                                 262     257      -5
sp_256_ecc_mulmod_8                                 1171    1161     -10
sp_256_proj_point_dbl_8                              374     359     -15
static.sp_256_mont_sub_8                              29       -     -29
static.sp_256_mont_dbl_8                              31       -     -31
------------------------------------------------------------------------------
(add/remove: 3/2 grow/shrink: 0/3 up/down: 126/-90)            Total: 36 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 01:11:48 +02:00
Denys Vlasenko
2430fcfd8d tls: optimize sp_256_mont_reduce_8 in P256
The code size decrease is small, but we eliminate ALL multiplies!

function                                             old     new   delta
sp_256_mont_reduce_8                                 268     262      -6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06 00:24:03 +02:00
Denys Vlasenko
bbd723ebec tls: optimize sp_256_mul_8 in P256
function                                             old     new   delta
sp_256_mont_mul_8                                    151     150      -1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05 23:19:18 +02:00
Denys Vlasenko
3b411ebbfc tls: replace "26-bit" P256 code with 32-bit one.
function                                             old     new   delta
sp_256_ecc_mulmod_8                                    -    1171   +1171
sp_256_mod_mul_norm_8                                  -     834    +834
sp_256_proj_point_dbl_8                                -     374    +374
sp_256_mont_reduce_8                                   -     268    +268
sp_256_mont_mul_8                                      -     151    +151
sp_256_sub_8                                           -      76     +76
sp_256_add_8                                           -      76     +76
sp_256_cmp_8                                           -      38     +38
static.sp_256_mont_dbl_8                               -      31     +31
static.sp_256_mont_sub_8                               -      29     +29
sp_256_to_bin_8                                        -      28     +28
sp_256_point_from_bin2x32                             50      73     +23
sp_256_mont_sqr_8                                      -       7      +7
sp_256_mont_sqr_10                                     7       -      -7
p256_mod                                              40      32      -8
curve_P256_compute_pubkey_and_premaster              186     167     -19
sp_256_sub_10                                         22       -     -22
sp_256_add_10                                         22       -     -22
sp_256_cmp_10                                         24       -     -24
sp_256_norm_10                                        31       -     -31
static.sp_256_mont_sub_10                             49       -     -49
static.sp_256_mont_dbl_10                             52       -     -52
static.sp_256_mul_add_10                              82       -     -82
sp_256_from_bin_10                                   119       -    -119
sp_256_to_bin_10                                     120       -    -120
sp_256_mont_reduce_10                                178       -    -178
sp_256_mont_mul_10                                   214       -    -214
sp_256_proj_point_dbl_10                             451       -    -451
sp_256_ecc_mulmod_10                                1216       -   -1216
sp_256_mod_mul_norm_10                              1305       -   -1305
------------------------------------------------------------------------------
(add/remove: 12/15 grow/shrink: 1/2 up/down: 3106/-3919)     Total: -813 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05 20:01:38 +02:00
Denys Vlasenko
55578f2fb7 tls: fix the case of sp_256_mont_tpl_10() leaving striay high bits
It has no effect on correctness, but interferes with compating internal state
of different implementations.

function                                             old     new   delta
sp_256_proj_point_dbl_10                             443     451      +8
static.sp_256_mont_sub_10                             46      49      +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 11/0)               Total: 11 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05 19:46:39 +02:00
Denys Vlasenko
81d8af1970 tls: fix (what looks like) a rare corner case bug in P256
function                                             old     new   delta
static.sp_256_mont_sub_10                             30      46     +16

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05 17:31:33 +02:00
Denys Vlasenko
92402d5e0a tls: remove one overzealous debugging statement
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05 14:01:52 +02:00
Denys Vlasenko
137864f559 tls: add debugging scaffolding to P256 code
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05 13:50:11 +02:00
Denys Vlasenko
389329efbe tls: another P256 code shrink
Propagate constant arrays and scalars deeper down call chain.
Use sp_256_mont_mul_10 to implement sp_256_mont_sqr_10.

function                                             old     new   delta
sp_256_mont_mul_10                                     -     214    +214
sp_256_mont_reduce_10                                  -     178    +178
sp_256_mont_sqr_10                                     -       7      +7
static.sp_256_mont_reduce_10                         178       -    -178
static.sp_256_mont_mul_10                            214       -    -214
static.sp_256_mont_sqr_10                            234       -    -234
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 0/0 up/down: 399/-626)         Total: -227 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05 13:39:33 +02:00
Denys Vlasenko
e730505034 tls: P256 code shrink
function                                             old     new   delta
sp_256_to_bin_10                                       -     120    +120
sp_256_from_bin_10                                     -     119    +119
sp_256_proj_point_dbl_10                             446     443      -3
curve_P256_compute_pubkey_and_premaster              191     186      -5
sp_256_point_from_bin2x32                             62      50     -12
sp_256_to_bin                                        120       -    -120
static.sp_256_from_bin                               149       -    -149
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 0/3 up/down: 239/-289)          Total: -50 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05 13:32:04 +02:00
Denys Vlasenko
934bb01d51 tls: "server cert is not RSA" is a fatal error
function                                             old     new   delta
tls_handshake                                       2022    2019      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-01 22:03:09 +02:00
Ron Yorston
ed9aa89269 wget: implement --post-file
Add the --post-file option to send form data from a file.  As with
--post-data it's up to the user to ensure that the data is encoded
as appropriate:  all wget does is stuff the provided data into
the request.

The --post-data and --post-file options are mutually exclusive and
only one instance of either may be given.

Additionally:

- update the usage message to include missing details of the --post-data
  and --header options;

- free POST data if FEATURE_CLEAN_UP is enabled.

function                                             old     new   delta
packed_usage                                       34158   34214     +56
wget_main                                           2762    2805     +43
.rodata                                            99225   99240     +15
static.wget_longopts                                 266     278     +12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 126/0)             Total: 126 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-01 14:55:18 +02:00
Denys Vlasenko
1f5a44d20c tls: add scaffolding to selectively disable ciphers. no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-01 14:27:10 +02:00
Denys Vlasenko
7714518f1a tls: code shrink P256 code
function                                             old     new   delta
sp_256_to_bin                                        148     120     -28

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-01 13:51:39 +02:00
Denys Vlasenko
ac36e70074 tls: remove unused define
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-30 00:03:23 +02:00
Ismael Luceno
35727f5741 less: Ignore -X
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>
2021-09-28 23:22:47 +02:00
Denys Vlasenko
5b026d1ecf ash: fix compile breakage in !ENABLE_ASH_ALIAS config
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-28 17:41:56 +02:00
Denys Vlasenko
03ed86b39e libbb: code shrink in main() and scripted_main()
function                                             old     new   delta
main                                                  68      65      -3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3)               Total: -3 bytes
   text	   data	    bss	    dec	    hex	filename
   1472	    560	     16	   2048	    800	busybox_old
   1398	    552	     16	   1966	    7ae	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-28 17:40:59 +02:00
Denys Vlasenko
1be73dd9ad shell: fix parsing of $(( (v)++ + NUM ))
function                                             old     new   delta
evaluate_string                                      988    1011     +23

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-26 13:29:25 +02:00
Denys Vlasenko
62e433131b shell: enable more tests which are passing now
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-25 22:35:17 +02:00
Denys Vlasenko
d84a604830 shell: fix arithmentic evaluation of "++7" and such (it is + + 7, i.e. 7)
function                                             old     new   delta
evaluate_string                                      945     988     +43

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-25 22:04:45 +02:00
Denys Vlasenko
627821e42b libbb/lineedit: tweak #if indenting, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-25 19:36:35 +02:00
Ron Yorston
56f0e886db cal: implement -m
Some people prefer the week to start on Monday.  Add the '-m'
option to support this.

function                                             old     new   delta
cal_main                                             926     966     +40
day_array                                            316     337     +21
packed_usage                                       34151   34158      +7
.rodata                                            99224   99225      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 69/0)               Total: 69 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-21 15:25:37 +02:00
Ron Yorston
f27a6a94a7 libbb: code shrink parse_datestr (again)
Commit 9fe1548bb (date,touch: allow timezone offsets in dates)
mentioned the similarity between '@' format dates and those with
timezone offsets.  It didn't notice that as a result there's
common code which can be shared.

function                                             old     new   delta
parse_datestr                                        730     687     -43
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-43)             Total: -43 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-18 22:55:46 +02:00
Denys Vlasenko
6d2463ac01 libbb/lineedit: do not escape %^=+}]:, escape ~? in tab completion
function                                             old     new   delta
.rodata                                           104185  104180      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17 17:33:32 +02:00
Denys Vlasenko
6279aec03d libbb: clarify what bb_mode_string() generates
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17 17:10:38 +02:00
Ron Yorston
3a65435eaa libbb: ensure mode_string is NUL terminated
If the mode_string array is no longer static we can't rely on
it being NUL terminated.

function                                             old     new   delta
bb_mode_string                                       115     118      +3

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17 16:51:01 +02:00
Denys Vlasenko
59ac467dc6 libbb: eliminate a static data array in bb_mode_string()
function                                             old     new   delta
print_stat                                           861     869      +8
header_verbose_list_ar                                73      77      +4
display_single                                       975     979      +4
header_verbose_list                                  237     239      +2
bb_mode_string                                       124     115      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 18/-9)               Total: 9 bytes
   text	   data	    bss	    dec	    hex	filename
1043136	    559	   5052	1048747	 1000ab	busybox_old
1043153	    559	   5020	1048732	 10009c	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17 01:18:31 +02:00
Denys Vlasenko
4958c18134 libbb: code shrink bb_parse_mode
function                                             old     new   delta
bb_parse_mode                                        393     398      +5
static.who_mask                                       16       8      -8
static.perm_mask                                      24      12     -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 5/-20)             Total: -15 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17 00:47:23 +02:00
Denys Vlasenko
2df4e0a370 chmod: correctly report changed modes
Chmod used to incorrectly report as changed even files for which the
mode did not change. This was caused by extra bits in the st_mode, that
were not present when parsed from passed argument in the form of octal
number.

Patch by Wolf <wolf@wolfsden.cz>.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17 00:39:21 +02:00
Ron Yorston
9fe1548bbf date,touch: allow timezone offsets in dates
Allow ISO 8601 style dates to include a timezone offset.  Like
the '@' format these dates aren't relative to the user's current
timezone and shouldn't be subject to DST adjustment.

- The implementation uses the strptime() '%z' format specifier.
  This an extension which may not be available so the use of
  timezones is a configuration option.

- The 'touch' applet has been updated to respect whether DST
  adjustment is required, matching 'date'.

function                                             old     new   delta
parse_datestr                                        624     730    +106
static.fmt_str                                       106     136     +30
touch_main                                           388     392      +4
date_main                                            818     819      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 141/0)             Total: 141 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17 00:11:30 +02:00
Ron Yorston
83e20cb81c getopt: code shrink
function                                             old     new   delta
.rodata                                            99277   99290     +13
normalize                                            177     142     -35
getopt_main                                          675     622     -53
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 13/-88)            Total: -75 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-16 01:09:32 +02:00
Denys Vlasenko
704c596563 ash: introduce bash-like $FUNCNAME
Patch adapted from Roberto A. Foglietta <roberto.foglietta@gmail.com>
work.

function                                             old     new   delta
lookupvar                                            106     150     +44
evalfun                                              369     408     +39
ash_main                                            1218    1242     +24
varinit_data                                         156     168     +12
.rodata                                           104162  104172     +10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 129/0)             Total: 129 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-15 19:31:44 +02:00
Ron Yorston
3512ef8018 libbb: code shrink parse_datestr
The default build uses strptime() in parse_datestr() to support the
'month_name d HH:MM:SS YYYY' format of GNU date.  If we've linked
with strptime() there's an advantage is using it for other formats
too.

There's no change to the non-default, non-DESKTOP build.

function                                             old     new   delta
fmt_str                                                -     106    +106
.rodata                                            99216   99145     -71
parse_datestr                                        948     624    -324
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 106/-395)         Total: -289 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-15 08:09:45 +02:00
Ron Yorston
5726df5f94 ash: let ignoreeof only affect interactive shells
Commit fb7d6c89 from Harald van Dijk's gwsh variant of ash
(https://github.com/hvdijk/gwsh):

    ignoreeof is documented as only having an effect for interactive shells,
    but is implemented as having mostly the same effect for interactive
    shells as for non-interactive shells. Change the implementation to match
    the documentation.

    Test case:

      $SHELL -o ignoreeof /dev/null

function                                             old     new   delta
cmdloop                                              359     361      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 2/0)                 Total: 2 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-14 08:25:58 +02:00
Ron Yorston
50239a665c ash: stopped jobs should only prevent exit from interactive shell
When the user tries to exit an interactive shell with stopped jobs
present the shell issues a warning and only exits if the user
insists by trying to exit again.

This shouldn't apply to non-interactive shells.

Reported-by: Roberto A. Foglietta <roberto.foglietta@gmail.com>
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-14 08:16:15 +02:00
Ron Yorston
0beee20977 ash: fix ignoreeof option
The ignoreeof option should prevent an interactive shell from
exiting on EOF.  This hasn't worked in BusyBox ash since commit
727752d2d (ash: better fix for ash -c 'echo 5&' and ash -c 'sleep 5&'
with testcase).

Commit 3b4d04b77e (ash: input: Allow two consecutive calls to pungetc)
pulled in improved support for multiple calls to pungetc from dash,
thus rendering much of commit 727752d2d obsolete.  Removing this old
code fixes the problem with ignoreeof.

function                                             old     new   delta
__pgetc                                              605     587     -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-18)             Total: -18 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-14 08:16:15 +02:00