| Commit message (Collapse) | Author | Age | Files | Lines |
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The functions ndelay_on(), ndelay_off() and close_on_exec_on()
don't do anything useful because our fcntl(2) implementation
doesn't support the features they require.
Replace them with stubs.
Saves 176-208 bytes.
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function old new delta
fork_or_rexec 46 56 +10
bootchartd_main 1087 1079 -8
cpio_main 674 661 -13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 10/-21) Total: -11 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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The trap builtin now handles INT. As before, other signals (from
a limited list) are accepted but their traps don't have any effect.
There's some variability in how shells handle traps. This patch
upholds that proud tradition.
Various changes are needed to make this work:
- Line editing has a new flag to ignore Ctrl-C.
- If INT is being trapped or ignored don't call raise_interrupt().
- A minimal implementation of dotrap() is provided.
- Call dotrap() when the read builtin or line input detect Ctrl-C.
- Adjust Ctrl-C detection when the INT trap is changed.
- Set may_have_traps when an INT trap is set.
Costs 368-448 bytes.
(GitHub issue #303)
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- Disable ENABLE_PROCESSED_INPUT in raw mode. Otherwise ^C isn't
immediately detected during shell command line editing with
virtual terminal input enabled.
- Switch read_key()/unix_readkey() to windows_read_key()/read_key().
This allows the shell `read` builtin to use windows_read_key().
Without this change `read` fails when virtual terminal input is
enabled.
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Until now busybox-w32 has used a native Windows implementation
of read_key(). Build the upstream Unix implementation and use
it instead of the native version when virtual terminal input
mode is enabled.
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Add the environment variable BB_TERMINAL_MODE as a more general way
of controlling console/terminal mode setting. The default remains
unchanged: use virtual terminal mode for output if possible but
fall back to the console API with emulated ANSI escape sequences.
Currently valid settings are:
0 Force use of console mode
1 Force use of virtual terminal mode for output
5 Prefer virtual terminal mode for output, fall back to console
Other values won't do anything useful until code elsewhere has been
updated.
BB_SKIP_ANSI_EMULATION remains available for backwards compatibility.
If both variables are set BB_TERMINAL_MODE takes precedence.
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
sleepcmd - 10 +10
builtintab 352 360 +8
.rodata 105264 105271 +7
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 25/0) Total: 25 bytes
Signed-off-by: Shawn Landden <shawnlandden@tutanota.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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ash and hush correctly use the value of HOME for tilde expansion.
However the line editing code in libbb obtains the user's home
directory by calling getpwuid(). Thus tildes in tab completion
and prompts may be interpreted differently than in tilde expansion.
When the line editing code is invoked from a shell make it use the
shell's interpretation of tilde. This is similar to how GNU readline
and bash collaborate.
function old new delta
get_homedir_or_NULL 29 72 +43
optschanged 119 126 +7
hush_main 1204 1211 +7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 57/0) Total: 57 bytes
v2: Always check for HOME before trying the password database: this
is what GNU readline does.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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The default PATH defined as BB_PATH_ROOT_PATH is used:
- to set PATH in the shell if the environment variable doesn't exist;
- as the default in 'which' if there's no PATH env var;
- when the option 'command -p' is given.
Replace the Unix-centric default with something more likely to work
on Microsoft Windows. No guarantees, though.
(GitHub issue #253)
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The environment variables BB_OVERRIDE_APPLETS, BB_SKIP_ANSI_EMULATION
and BB_SYSTEMROOT affect of the behaviour of the shell itself.
Setting them as shell variables is insufficient for them to affect
the current shell.
When these three variables are exported from the shell they are
now placed in the environment immediately. Conversely, when
they're unset or unexported they're removed from the environment.
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The default busybox-w32 configuration enables the PREFER_APPLETS
and SH_STANDALONE features. Sometimes it may be desirable to
override the default preference for applets, for example, if an
applet needs to be replaced by an external program with additional
features.
Add support for the environment variable BB_OVERRIDE_APPLETS.
Its value may be:
- a single dash ('-'): all applets are overridden;
- a space-separated list of names: only the specified applets
are overridden.
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Fix conflicts in reset and ash.
Redefine the new safe_read_key() as a reference to read_key().
Disable SHA256_HWACCEL.
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This was missing in the previous attempt to fix it via [1]
This helps fix segfaults when compiling with clang ( seen on riscv64 )
[ 452.428349] less[270]: unhandled signal 11 code 0x1 at 0x000000000000000c in busybox.nosuid[2ab7491000+ba000]
[ 452.430246] CPU: 3 PID: 270 Comm: less Not tainted 5.15.13-yocto-standard #1
[ 452.431323] Hardware name: riscv-virtio,qemu (DT)
[ 452.431925] epc : 0000002ab74a19ee ra : 0000002ab74a19dc sp : 0000003fec6ec980
[ 452.432725] gp : 0000002ab754dcb0 tp : 0000003f88783800 t0 : 0000003f8878d4a0
[ 452.433744] t1 : 0000002ab749b00c t2 : 0000000000000000 s0 : 0000003fec6ecc38
[ 452.434732] s1 : 000000000000004c a0 : 00000000ffffffff a1 : 0000002ab754dde0
[ 452.435861] a2 : 0000000000000000 a3 : 0000000000000100 a4 : 0000002ab754f3a0
[ 452.436787] a5 : 0000002ab754f3a0 a6 : 0000000000000000 a7 : 0000002ab754f2a0
[ 452.437974] s2 : 0000000000000002 s3 : 0000002ab754b6c8 s4 : 0000002ab749b60e
[ 452.438781] s5 : 0000000000000000 s6 : 0000002ab754b6c8 s7 : 0000003f88943060
[ 452.439723] s8 : 0000003f88944050 s9 : 0000002ad8502e88 s10: 0000002ad8502de8
[ 452.440538] s11: 0000000000000014 t3 : 0000003f887fceb6 t4 : 0000003f8893af0c
[ 452.441438] t5 : 0000000000000000 t6 : 0000003f88923000
[1] https://git.busybox.net/busybox/commit/?id=1f925038a
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
lineedit_read_key 237 231 -6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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function old new delta
chdir_or_warn - 37 +37
send_cgi_and_exit 720 711 -9
xchdir 27 15 -12
setup_environment 233 217 -16
fork_job 449 433 -16
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/4 up/down: 37/-53) Total: -16 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Double negatives are hard to grok.
function old new delta
login_main 986 988 +2
su_main 474 470 -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 2/-4) Total: -2 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Fix merge conflicts in coreutils/ls.c and shell/ash.c.
Update config files to turn off SHA1_HWACCEL. It uses non-portable
assembler.
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Change to root's HOME. Set some envvars. Steal ctty if necessary and possible.
function old new delta
sulogin_main 240 340 +100
setup_environment 225 233 +8
su_main 479 474 -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 108/-5) Total: 103 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Fix merge conflict in miscutils/less.c.
Use exit_SUCCESS() where possible.
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Also, remove entirely usually-disabled paranoia check (was also using
wrong config option to enable itself).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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function old new delta
fflush_stdout_and_exit_SUCCESS - 7 +7
xxd_main 890 888 -2
vlock_main 353 351 -2
uuencode_main 318 316 -2
uniq_main 427 425 -2
uname_main 250 248 -2
sort_main 853 851 -2
shuf_main 500 498 -2
route_main 238 236 -2
readlink_main 113 111 -2
nice_main 156 154 -2
last_main 957 955 -2
ipcs_main 960 958 -2
env_main 209 207 -2
chrt_main 464 462 -2
cal_main 921 919 -2
baseNUM_main 650 648 -2
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/16 up/down: 7/-32) Total: -25 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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On 64-bit systems mingw-w64 defines pid_t as a 64-bit integer so
some printf calls caused compiler warnings.
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
re_execed_comm - 46 +46
main 72 86 +14
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 60/0) Total: 60 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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- This can act as memory barrier in clang to avoid
read before assign of a const ptr
Signed-off-by: LoveSy <shana@zju.edu.cn>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Add some tests which coreutils realpath pass but BusyBox realpath
fails (bar one). Adjust xmalloc_realpath_coreutils() so the tests
pass:
- Expand symbolic links before testing whether the last path component
exists.
- When the link target is a relative path canonicalize it by passing
it through xmalloc_realpath_coreutils() as already happens for
absolute paths.
- Ignore trailing slashes when finding the last path component and
correctly handle the case where the only slash is at the start of
the path. This requires ignoring superfluous leading slashes.
- Undo all changes to the path so error messages from the caller show
the original filename.
function old new delta
xmalloc_realpath_coreutils 214 313 +99
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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BB_STRTOOFF() was equal to bb_strtou(). On x86_64, it's incorrect.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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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>
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Disable FEATURE_TIMEZONE for now.
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
.rodata 103681 103722 +41
packed_usage 33698 33717 +19
copy_file 1678 1696 +18
cp_main 500 492 -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 78/-8) Total: 70 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
packed_usage 33713 33734 +21
.rodata 103670 103672 +2
cp_main 506 500 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 23/-6) Total: 17 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
.rodata 103331 103363 +32
packed_usage 33652 33654 +2
free_main 657 588 -69
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 34/-69) Total: -35 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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could mess things up
While at it, rename bb_signals_recursive_norestart() to bb_signals_norestart():
"recursive" was implying we are setting SA_NODEFER allowing signal handler
to be entered recursively, but we do not do that.
function old new delta
bb_signals_norestart - 70 +70
startservice 380 394 +14
bb_signals_recursive_norestart 70 - -70
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/0 up/down: 84/-70) Total: 14 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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The TERM variable is usually set to "dumb" to indicate that the terminal
does not support any ANSI escape sequences. Presently, ls does not honor
this variable and outputs colors anyhow which results in unreadable
output, unless the user explicitly disables colors using `ls
--color=never`. The rational behind this change is that ls should "just
work" by default, even on dumb terminals.
For this reason, this patch adds a check which additionally consults the
TERM variable before printing any colors. This is analogous to the
existing check for ensuring that standard output is a tty. As such,
colors can still be forced with `--color=force`, even if TERM is set to
dumb.
function old new delta
is_TERM_dumb - 40 +40
ls_main 579 598 +19
.rodata 103246 103251 +5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 64/0) Total: 64 bytes
Signed-off-by: Sören Tempel <soeren+git@soeren-tempel.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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