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Author SHA1 Message Date
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
Denys Vlasenko
696c38ddca mount: add -o nostrictatime and -o [no]lazytime 
function                                             old     new   delta
mount_option_str                                     345     379     +34
mount_options                                        176     188     +12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 46/0)               Total: 46 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-06 20:59:41 +01:00
Denys Vlasenko
b1eedfcfa1 mount: do not guess mount as NFS if "hostname:" contains slashes 
function                                             old     new   delta
singlemount                                         1273    1295     +22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-05 14:14:11 +01:00
Denys Vlasenko
758c2bd58e awk: add a test that $NF is empty 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-04 19:00:06 +01:00
Denys Vlasenko
f4f6e5144b libbb: exec_login_shell() - new function 
function                                             old     new   delta
exec_login_shell                                       -      12     +12
sulogin_main                                         247     240      -7
login_main                                           960     953      -7
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 12/-14)             Total: -2 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-02 21:51:08 +01:00
Denys Vlasenko
0622416fec libbb: code shrink in exec_shell() 
function                                             old     new   delta
exec_shell                                           129     120      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-02 21:39:57 +01:00
Denys Vlasenko
2075aa93e0 libbb: rename run_shell() to exec_shell() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-02 21:28:47 +01:00
Denys Vlasenko
b4f93f562d mount: do not guess bind mounts as nfs 
Fails as follows:

$ mount -o bind /dev/disk/by-path/pci-0000:13:00.0-scsi-0:0:3:0 /dir
mount: bad address '/dev/disk/by-path/pci-0000'

function                                             old     new   delta
singlemount                                         1256    1273     +17

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-02 19:10:22 +01:00
Denys Vlasenko
665a659530 awk: FS regex matches only non-empty separators (gawk compat) 
function                                             old     new   delta
awk_split                                            484     553     +69

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-02 19:07:31 +01:00
Denys Vlasenko
50ead33c45 login: log to syslog every bad password, not only 3rd 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-02 17:47:16 +01:00
Denys Vlasenko
6599e380ed mount: make filesystems[] array byte-aligned 
text	   data	    bss	    dec	    hex	filename
1021120	    559	   5052	1026731	  faaab	busybox_old
1021092	    559	   5052	1026703	  faa8f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-30 15:10:43 +01:00
Denys Vlasenko
6cc4962b60 decrease padding: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nilly 
text	   data	    bss	    dec	    hex	filename
1021236	    559	   5052	1026847	  fab1f	busybox_old
1021120	    559	   5052	1026731	  faaab	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-30 14:58:02 +01:00
Denys Vlasenko
965b795b87 decrease paddign: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nilly 
text	   data	    bss	    dec	    hex	filename
1021988	    559	   5052	1027599	  fae0f	busybox_old
1021236	    559	   5052	1026847	  fab1f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-30 13:03:03 +01:00
Denys Vlasenko
2fba2f5bb9 unicode: relax array alignment for tables 
text	   data	    bss	    dec	    hex	filename
1022075	    559	   5052	1027686	  fae66	busybox_old
1021988	    559	   5052	1027599	  fae0f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-30 11:30:17 +01:00
Denys Vlasenko
33e955ab91 unicode: fix handling of short 1-4 char tables 
function                                             old     new   delta
in_uint16_table                                       92     107     +15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-30 11:18:00 +01:00
Denys Vlasenko
eb773054e4 libbb: code shrink 
function                                             old     new   delta
generate_uuid                                        124     103     -21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-29 14:24:14 +01:00
Denys Vlasenko
6a55b4e403 libbb: introduce and use msleep() 
function                                             old     new   delta
msleep                                                 -      45     +45
watchdog_main                                        271     266      -5
common_traceroute_main                              3546    3530     -16
beep_main                                            277     248     -29
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/3 up/down: 45/-50)             Total: -5 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-29 12:40:25 +01:00
Denys Vlasenko
b86a9ed699 use write_str() functions where appropriate 
function                                             old     new   delta
chat_main                                           1300    1295      -5
finalize_tty_attrs                                    80      70     -10
getty_main                                          1538    1519     -19
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-34)             Total: -34 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-29 11:49:37 +01:00
Denys Vlasenko
ec16c030bd libbb: introduce and use sleep1() 
function                                             old     new   delta
sleep1                                                 -       9      +9
run_shutdown_and_kill_processes                       97      95      -2
restore_state_and_exit                               116     114      -2
reread_partition_table                                67      65      -2
flush_buffer_cache                                    80      78      -2
chat_main                                           1302    1300      -2
timeout_main                                         310     307      -3
telnet_main                                         1235    1232      -3
stop_handler                                          86      83      -3
process_action                                      1078    1075      -3
nbdclient_main                                      1185    1182      -3
init_main                                            789     786      -3
getty_main                                          1541    1538      -3
do_time                                              410     407      -3
runsv_main                                          1682    1677      -5
pause_and_low_level_reboot                            59      54      -5
inetd_main                                          1917    1911      -6
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/16 up/down: 9/-50)            Total: -41 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-29 11:37:34 +01:00
Denys Vlasenko
87bd558f3f libbb: bb_do_delay(3) -> pause_after_failed_login(), and stop looping there 
function                                             old     new   delta
pause_after_failed_login                               -       9      +9
vlock_main                                           358     353      -5
sulogin_main                                         252     247      -5
su_main                                              484     479      -5
passwd_main                                          936     931      -5
login_main                                           967     962      -5
bb_do_delay                                           68       -     -68
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/5 up/down: 9/-93)             Total: -84 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-29 11:32:48 +01:00
Denys Vlasenko
32a8f70ac1 libbb: in @SECONDS date format, use 64-bit time if libc allows 
function                                             old     new   delta
packed_usage                                       33472   33486     +14
parse_datestr                                        919     916      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 23:21:13 +01:00
Denys Vlasenko
4dee016059 date: tweak --help: -D FMT is used for -s TIME as well 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 23:04:09 +01:00
Denys Vlasenko
56a5731a1a date: remove non-standard special-casing of date '+%f' 
git log did not reveal why it is there.

function                                             old     new   delta
date_main                                           1016     995     -21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 22:07:00 +01:00
Denys Vlasenko
f26c5660c2 date: trim --help (no need to show long opts) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 22:01:15 +01:00
Denys Vlasenko
900eae1738 date: support -Ins, more compatible timezone display in -I 
function                                             old     new   delta
date_main                                            941    1016     +75
static.isoformats                                     28      31      +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 78/0)               Total: 78 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 21:44:58 +01:00
Denys Vlasenko
ab6991c6f5 date: for -uR and -uIh, timezone still have to be shown at +hhmm, not as abbreviation 
function                                             old     new   delta
date_main                                            963     941     -22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 20:58:42 +01:00
Denys Vlasenko
818a4aa2ef fix comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 14:22:52 +01:00
Denys Vlasenko
ae04ce82cf base32/64: "truncated base64 input" -> "truncated input" 
text	   data	    bss	    dec	    hex	filename
1021739	    559	   5052	1027350	  fad16	busybox_old
1021732	    559	   5052	1027343	  fad0f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 13:43:54 +01:00
Denys Vlasenko
885121e25d libbb: change decode_base32/64 API to return the end of _dst_, not _src_. 
function                                             old     new   delta
decode_base64                                        173     178      +5
read_base64                                          222     220      -2
decode_base32                                        186     182      -4
handle_incoming_and_exit                            2263    2239     -24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 5/-30)             Total: -25 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 13:27:36 +01:00
Denys Vlasenko
fc6faac84e libbb: trim base32/64 tables 
function                                             old     new   delta
bb_uuenc_tbl_base64                                   66      65      -1
bb_uuenc_tbl_base32                                   34      32      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 12:48:34 +01:00
Denys Vlasenko
f140b49f5f base32/64: code shrink 
function                                             old     new   delta
decode_base64                                        178     173      -5
decode_base32                                        217     186     -31
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-36)             Total: -36 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 12:33:50 +01:00
Denys Vlasenko
7467e905e5 base32/64: code shrink 
function                                             old     new   delta
decode_base64                                        180     178      -2
decode_base32                                        224     217      -7
read_base64                                          236     222     -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-23)             Total: -23 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-28 09:50:14 +01:00
Denys Vlasenko
2cd37d65e2 libbb: faster and smaller decode_base32() 
function                                             old     new   delta
decode_base32                                        275     224     -51

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-27 21:25:34 +01:00
Denys Vlasenko
170b8628fa libbb: smaller and faster decode_base64() 
function                                             old     new   delta
decode_base64                                        195     180     -15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-27 20:45:15 +01:00
Denys Vlasenko
dc68a5ddac sha3sum: fix --help: -a does not depend on FEATURE_MD5_SHA1_SUM_CHECK 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-27 15:55:46 +01:00
Denys Vlasenko
cdab3c4fac base32/64: decode in-place 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-27 15:39:23 +01:00
Denys Vlasenko
c8b3d9a145 base32/64: implement -w COL 
function                                             old     new   delta
baseNUM_main                                         568     655     +87
packed_usage                                       33478   33533     +55
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 142/0)             Total: 142 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-27 15:25:31 +01:00
Denys Vlasenko
fc63549352 free: code shrink 
function                                             old     new   delta
free_main                                            664     657      -7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-27 12:40:31 +01:00
Denys Vlasenko
20900489a1 base32: new applet 
function                                             old     new   delta
baseNUM_main                                           -     568    +568
decode_base32                                          -     275    +275
bb_uuenc_tbl_base32                                    -      34     +34
read_base64                                          218     236     +18
applet_names                                        2732    2739      +7
applet_main                                         1580    1584      +4
packed_usage                                       33480   33478      -2
base64_main                                          208       -    -208
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 3/1 up/down: 906/-210)          Total: 696 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-26 09:04:16 +01:00
Denys Vlasenko
03eb6eba43 mdev: clear LOGMODE_STDIO only directly before daemonizing 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-22 16:35:56 +01:00
Denys Vlasenko
cb143b9793 uevent: make it survive ENOBUFS 
function                                             old     new   delta
uevent_main                                          285     337     +52

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-22 16:22:16 +01:00
Denys Vlasenko
1c9cd9b71b mdev: clean up 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-22 14:43:35 +01:00
Jan Klötzke
768153bf8c mdev: add -v to increase log verbosity 
If logging to stderr and/or syslog the -v option can be given one or
more times to increase the log verbosity. If mdev is used as hotplug
helper the log level is fixed set to 2 if mdev.log is found an appended
because there is no possiblity to pass arguments to the hotplug helper.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-22 14:33:58 +01:00
Jan Klötzke
e9003caf6d mdev: add syslog logging mode 
If mdev is run as daemon it should be possible to forward the debug
messages to syslog. This feature might be useful if mdev is run with -s
during boot too. OTOH it makes no sense for the daemon to log to
mdev.log. This can be handled by a syslog daemon way better. If the
daemon stays in the foreground due to -f, the messages are still written
to stderr as before.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-22 14:33:58 +01:00
Jan Klötzke
d560030548 mdev: re-initialize if uevent messages were lost 
If the netlink read() failed with ENOBUFS we know that we have missed at
least one message due to a socket receive buffer overrun. The only way
how to recover is to drop the old socket, open a fresh one and make a
cold-plug scan of the current system state.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-22 14:33:58 +01:00
Jan Klötzke
e3f4759019 mdev: move daemon setup to dedicated function 
Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-22 14:33:58 +01:00