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Author SHA1 Message Date
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
Denys Vlasenko
caba1a16ec tweak help texts 
function                                             old     new   delta
packed_usage                                       33650   33605     -45

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-16 01:19:08 +01:00
Denys Vlasenko
9b44deac01 ntpd: allow non-root to run it (e.g. with -w option) 
This is safe: it's not a setuid applet, the attempt to set time
will simply fail if attempted by non-root

From openwrt 600-allow-ntpd-non-root.patch

function                                             old     new   delta
ntp_init                                            1049    1005     -44

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-15 23:23:44 +01:00
Denys Vlasenko
73d93d9f83 libbb: make pw_encrypt() die if supplied salt is bad (e.g. emply) 
Fished from 520-loginutils-handle-crypt-failures.patch in openwrt

function                                             old     new   delta
pw_encrypt                                           913     927     +14
des_crypt                                           1327    1318      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 14/-9)               Total: 5 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-15 23:19:22 +01:00
Denys Vlasenko
f3d6711c97 udhcpc6: code shrink - sending functions do not need ifindex parameter 
function                                             old     new   delta
d6_send_raw_packet_from_client_data_ifindex            -     427    +427
d6_send_kernel_packet_from_client_data_ifindex         -     275    +275
send_d6_renew                                        182     176      -6
perform_d6_release                                   246     240      -6
d6_mcast_from_client_data_ifindex                     45      39      -6
d6_send_kernel_packet                                274       -    -274
d6_send_raw_packet                                   429       -    -429
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 0/3 up/down: 702/-721)          Total: -19 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-15 21:55:15 +01:00
Michal Kazior
b817699e6c udhcp: bind to device even for ucast packets 
There are cases where binding to source IP and
destination IP is insufficient to guarantee sane
xmit netdev.

One case where this can fail is when
route-matching netdev carrier is down (cable
unplugged, wifi disconnected), or the netdev is
admin down. Then all the IP based bindings (bind()
+ connect()) will seemingly succeed but the actual
packet can go out through a default gw path.

Depending on the network this happens on
it can create issues or false alarms. It can
also leak some subnet info across networks that
shouldn't be routed.

As such better be safe than sorry and bind to a
netdev to be sure it's used for xmit.

function                                             old     new   delta
udhcp_send_kernel_packet                             293     336     +43
send_packet                                          182     188      +6
bcast_or_ucast                                        37      43      +6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 55/0)               Total: 55 bytes

Signed-off-by: Michal Kazior <michal@plume.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-15 21:44:21 +01:00
Denys Vlasenko
01004f9796 libbb: enable fixed 4k pagesize for 32bit ARM 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-15 21:24:04 +01:00
Denys Vlasenko
4a9ec95565 tls: code shrink in AES code 
function                                             old     new   delta
aes_cbc_decrypt                                      862     847     -15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-15 18:47:25 +01:00
Denys Vlasenko
fad8d6b6c0 build system: combat gcc zealotry in data alignment, now for x86_64 too 
function                                             old     new   delta
.rodata                                           182928  182620    -308

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-15 18:39:05 +01:00
Denys Vlasenko
2aaacc1453 dd: support for O_DIRECT i/o 
Based on patch by Akash Hadke <hadkeakash4@gmail.com>

function                                             old     new   delta
dd_read                                                -      66     +66
clear_O_DIRECT                                         -      55     +55
write_and_stats                                      102     135     +33
dd_main                                             1578    1601     +23
static.oflag_words                                    19      26      +7
static.iflag_words                                    22      29      +7
packed_usage                                       33665   33668      +3
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 5/0 up/down: 194/0)             Total: 194 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-14 20:27:57 +01:00
Denys Vlasenko
c7b858ff8d libbb: add and use infrastructure for fixed page size optimization 
function                                             old     new   delta
procps_scan                                         1121    1118      -3
getpagesize                                            6       -      -6
rpm_main                                            1037    1027     -10
rpm2cpio_main                                        120     110     -10
ptok                                                  38      21     -17
time_main                                           1282    1261     -21
mkswap_main                                          317     278     -39
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/6 up/down: 0/-106)           Total: -106 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-14 18:54:30 +01:00
Denys Vlasenko
fd3c512f88 libbb: create and use mmap() helpers 
function                                             old     new   delta
mmap_anon                                              -      22     +22
mmap_read                                              -      21     +21
xmmap_anon                                             -      16     +16
rpm_gettags                                          465     447     -18
bb_full_fd_action                                    498     480     -18
uevent_main                                          337     310     -27
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 0/3 up/down: 59/-63)             Total: -4 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-14 18:25:28 +01:00
Denys Vlasenko
db793480cb build system: combat gcc zealotry in data alignment 
text	   data	    bss	    dec	    hex	filename
1020934	    559	   5052	1026545	  fa9f1	busybox_old
1020750	    559	   5052	1026361	  fa939	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-14 05:53:45 +01:00
Denys Vlasenko
a8e19608fc hush: code shrink 
function                                             old     new   delta
run_applet_main                                        -      20     +20
builtin_kill                                         296     288      -8
builtin_test                                          19      10      -9
builtin_printf                                        19      10      -9
builtin_echo                                          19      10      -9
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/4 up/down: 20/-35)            Total: -15 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-14 03:52:54 +01:00
Denys Vlasenko
84d5eddb25 help text: replace [OPTIONS] with actual options (if not too long) 
function                                             old     new   delta
packed_usage                                       33620   33665     +45

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 22:34:05 +01:00
Denys Vlasenko
63139b531f hush: if login shell, also source ~/.profile 
function                                             old     new   delta
hush_main                                           1101    1151     +50

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 22:00:56 +01:00
Denys Vlasenko
1b367cbeda examples: remove /sbin/ prefixes, system should be configured with $PATH to find utilities 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 21:35:26 +01:00
Denys Vlasenko
5d553bc558 more --help text tweaks 
function                                             old     new   delta
packed_usage                                       33545   33581     +36

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 19:18:28 +01:00
Denys Vlasenko
11f1a2553e help text tweaks 
function                                             old     new   delta
packed_usage                                       33547   33545      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 19:04:19 +01:00
Denys Vlasenko
49142d48bd hush: NOMMU fix for hush-psubst/tick6.tests 
function                                             old     new   delta
hush_main                                           1759    1766      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 18:44:07 +01:00
Denys Vlasenko
9cabd17e55 hush: fix -c SCRIPT handling 
function                                             old     new   delta
hush_main                                           1763    1759      -4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 18:24:11 +01:00
Denys Vlasenko
31df5a3eee ash: reset SIGHUP earlier: allows HUP traps in .profile, closes 13371 
function                                             old     new   delta
ash_main                                            1188    1203     +15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 16:36:28 +01:00
Denys Vlasenko
6c5f4296dc traceroute: code shrink 
function                                             old     new   delta
hexdump_if_verbose                                     -     255    +255
common_traceroute_main                              1668    1644     -24
hexdump                                              239       -    -239
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/1 up/down: 255/-263)           Total: -8 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 15:58:47 +01:00
Denys Vlasenko
623e55a396 traceroute: even with -v, don't show other ping processes reply's 
function                                             old     new   delta
traceroute_init                                     1135    1151     +16
common_ping_main                                    1919    1935     +16
common_traceroute_main                              1715    1668     -47
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 32/-47)            Total: -15 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 15:53:06 +01:00
Denys Vlasenko
d067acb005 traceroute: simpler hexdump() 
function                                             old     new   delta
hexdump                                              270     239     -31

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 15:10:07 +01:00
Denys Vlasenko
b4b1828076 traceroute: make "ipv4 or ipv6?" cheaper to find out 
function                                             old     new   delta
traceroute_init                                     1131    1135      +4
hexdump                                              274     270      -4
common_traceroute_main                              1730    1715     -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 4/-19)             Total: -15 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 14:58:11 +01:00
Denys Vlasenko
8055173128 traceroute: don't set SO_DONTROUTE on recv socket, it only affects send 
function                                             old     new   delta
traceroute_init                                     1147    1131     -16

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 14:18:05 +01:00
Denys Vlasenko
724c7df683 traceroute: untangle main loop 
function                                             old     new   delta
common_traceroute_main                              1785    1730     -55

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-12 21:44:32 +01:00
Denys Vlasenko
e76f03b267 traceroute: commonalize verbose printing 
function                                             old     new   delta
hexdump                                                -     274    +274
traceroute_init                                     1172    1147     -25
pr_type                                               79       -     -79
common_traceroute_main                              2091    1785    -306
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/2 up/down: 274/-410)         Total: -136 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-12 21:09:21 +01:00
Denys Vlasenko
df5c5394b0 traceroute: set IP_PKTINFO to see correct local IP of received pkt (fixes -v display) 
Also, assorted code shrink:

function                                             old     new   delta
traceroute_init                                     1210    1172     -38
common_traceroute_main                              2141    2091     -50
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-88)             Total: -88 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-12 20:09:52 +01:00
Denys Vlasenko
cc55bbef75 traceroute: code shrink 
Move init code to a separate function.

function                                             old     new   delta
traceroute_init                                        -    1203   +1203
common_traceroute_main                              3391    2141   -1250
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 1203/-1250)        Total: -47 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-12 18:09:45 +01:00
Denys Vlasenko
70726640b3 traceroute: code shrink 
Do not pass "from" and "to" addresses as parameters, keep them in globals

function                                             old     new   delta
common_traceroute_main                              3426    3391     -35

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-12 18:09:45 +01:00
Denys Vlasenko
d0dea17900 traceroute: code shrink 
Do not byteswap ident (why we were doing it?)

function                                             old     new   delta
common_traceroute_main                              3544    3426    -118

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-12 18:09:45 +01:00
Denys Vlasenko
3978adc445 traceroute: fix traceroute6 -I (icmp mode) 
function                                             old     new   delta
common_traceroute_main                              3530    3544     +14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-12 18:09:45 +01:00
Denys Vlasenko
ef2366cdca nsenter: stop option parsing on 1st non-option 
"nsenter ls -l" gives: invalid option -- 'l'

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-12 08:44:32 +01:00
Denys Vlasenko
030fe31760 libbb: make msleep() result in only one syscall instead of looping 
function                                             old     new   delta
msleep                                                45      52      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-11 16:48:47 +01:00
Denys Vlasenko
56ee576507 mount: fix incorrect "success" exitcode if loop device setup fails 
When mounting, in parallel, multiple loop devices (squashfs for the
submitter's case), the following behavior can be observed:

stat64(/path/to/image, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
openat(AT_FDCWD, /path/to/image, O_RDWR|O_LARGEFILE) = 3
openat(AT_FDCWD, /dev/loop-control, O_RDWR|O_LARGEFILE|O_CLOEXEC) = 4
ioctl(4, LOOP_CTL_GET_FREE)             = 12
close(4)                                = 0
openat(AT_FDCWD, /dev/loop12, O_RDWR|O_LARGEFILE) = 4
ioctl(4, LOOP_GET_STATUS64, {lo_offset=0, lo_number=12, lo_flags=LO_FLAGS_AUTOCLEAR, lo_file_name=/path/to/image, ...}) = 0
close(4)                                = 0
close(3)                                = 0
write(2, "mount: can't setup loop device\n", 31mount: can't setup loop device
) = 31
exit_group(0)                           = ?
+++ exited with 0 +++

The ioctl LOOP_CTL_GET_FREE has resulted in the same result for
a competing mount process. The subsequent ioctl LOOP_GET_STATUS64
fails, having succeeded for the competing mount process.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-09 20:56:43 +01:00
Denys Vlasenko
e7d853b4eb wget: do not ftruncate if -O- is used, closes 13351 
function                                             old     new   delta
wget_main                                           2558    2571     +13
retrieve_file_data                                   612     621      +9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 22/0)               Total: 22 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-08 19:06:28 +01:00
Xabier Oneca
abaee4aada mkdtemp: proper error detection on mktemp 
On error, mktemp returns an empty string, not NULL.

Signed-off-by: Xabier Oneca <xoneca@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-08 18:46:32 +01:00
Denys Vlasenko
c9b93cf290 tar: expand --help 
function                                             old     new   delta
packed_usage                                       33486   33590    +104

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-08 16:46:41 +01:00
Denys Vlasenko
34c5115a7f mount: implement -o nosymfollow, remove bogus -o union 
The (1 << 8) MS_ flag is MS_NOSYMFOLLOW, not MS_UNION.
As far as I see in git history of kernel and util-linux,
MS_UNION did not ever exist.
Why did it appear in our tree in 2009?...

function                                             old     new   delta
mount_option_str                                     379     385      +6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-06 21:56:22 +01:00