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Author SHA1 Message Date
Ron Yorston
b22061718d find_applet_by_name: loop index should be signed 
The loop

   for (j = ARRAY_SIZE(applet_nameofs)-1; j >= 0; j--) {

was intended to terminate when j goes negative, so j needs to be signed.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-03 22:29:35 +02:00
Denys Vlasenko
6aab9928de whitespace and namespace cleanups 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-03 22:24:51 +02:00
Sven Eisenberg
b068cf2a7e ubirmvol: Implement -N switch for ubirmvol 
function                                             old     new   delta
get_volid_by_name                                      -     125    +125
ubi_devnum_from_devname                                -      43     +43
ubi_tools_main                                      1215    1220      +5
packed_usage                                       30674   30655     -19
ubirename_main                                       394     221    -173
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 1/2 up/down: 173/-192)          Total: -19 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-03 22:01:43 +02:00
Sven Eisenberg
cb92640998 ubirename: new applet 
function                                             old     new   delta
ubirename_main                                         -     394    +394
packed_usage                                       30611   30674     +63
applet_names                                        2530    2540     +10

Signed-off-by: Sven Eisenberg <sven.eisenberg@novero.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-03 20:12:03 +02:00
Denys Vlasenko
46b494635e libbb: speed up error_msg functions 
function                                             old     new   delta
bb_verror_msg                                        386     466     +80

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-03 16:55:03 +02:00
Denys Vlasenko
bc14f4d13d main(): add a TODO about finding a use for _end[] area 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-03 16:06:42 +02:00
Denys Vlasenko
056e1f558c trylink: on failure, print a hint about CONFIG_EXTRA_LDLIBS 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-03 15:38:53 +02:00
Denys Vlasenko
1cf68e3033 typo fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-02 22:57:17 +02:00
Denys Vlasenko
a93e4fd376 find_applet_by_name: add an example of faster linear search code 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-02 22:54:23 +02:00
Denys Vlasenko
8b0f459af7 nsenter,unshare: work around older header 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-02 19:00:44 +02:00
Denys Vlasenko
b14374a5ba sort: "-o FILE", not "-o", is the syntax 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-02 18:20:26 +02:00
Denys Vlasenko
8220399173 nsenter,unshare: share common code; fix a bug of not closing all fds 
function                                             old     new   delta
xvfork_parent_waits_and_exits                          -      64     +64
exec_prog_or_SHELL                                     -      39     +39
unshare_main                                         873     810     -63
nsenter_main                                         663     596     -67
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/2 up/down: 106/-130)          Total: -27 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-02 18:06:24 +02:00
Denys Vlasenko
c87e81f944 sort: help text does not need to say that -mST are supported but ignored 
Such information is useless for users of "sort --help"

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-02 17:39:50 +02:00
Denys Vlasenko
dd02a05e08 build system: finer-grained selection of search speedup table. 
KNOWN_APPNAME_OFFSETS=8 versus KNOWN_APPNAME_OFFSETS=0:

function                                             old     new   delta
find_applet_by_name                                   55     136     +81
applet_nameofs                                         -      14     +14
run_applet_and_exit                                  757     758      +1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-02 15:18:26 +02:00
Denys Vlasenko
9f2f96edfa unshare: remove stale comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-02 04:44:39 +02:00
Bartosz Golaszewski
80c934a251 nsenter: new applet 
function                                             old     new   delta
nsenter_main                                           -     663    +663
.rodata                                           155147  155612    +465
packed_usage                                       30536   30708    +172
nsenter_longopts                                       -     116    +116
open_by_path_or_target                                 -      58     +58
applet_names                                        2518    2526      +8
applet_main                                         2920    2928      +8
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 4/0 up/down: 1490/0)           Total: 1490 bytes
   text	   data	    bss	    dec	    hex	filename
 827956	   4078	   9080	 841114	  cd59a	busybox_old
 829214	   4086	   9080	 842380	  cda8c	busybox_unstripped

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-01 22:19:35 +02:00
Denys Vlasenko
c4199f22d0 libbb: two new functions: wait_for_exitstatus(pid), xfchdir(fd) 
Bartosz Golaszewski proposed xfchdir()

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-01 22:12:44 +02:00
Bartosz Golaszewski
29b33b63d4 unshare: new applet 
function                                             old     new   delta
unshare_main                                           -     873    +873
.rodata                                           154444  155131    +687
packed_usage                                       30329   30520    +191
unshare_longopts                                       -     106    +106
mount_namespaces                                       -      99     +99
mount_or_die                                           -      51     +51
ns_list                                                -      48     +48
wait_for_exitstatus                                    -      41     +41
opt_str                                                -      17     +17
applet_names                                        2510    2518      +8
applet_main                                         2912    2920      +8
applet_suid                                           91      92      +1
applet_install_loc                                   182     183      +1
------------------------------------------------------------------------------
(add/remove: 8/0 grow/shrink: 6/0 up/down: 2131/0)           Total: 2131 bytes
   text	   data	    bss	    dec	    hex	filename
 826110	   4070	   9080	 839260	  cce5c	busybox_old
 827961	   4078	   9080	 841119	  cd59f	busybox_unstripped

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-01 19:44:39 +02:00
Denys Vlasenko
52977a7d60 Rename FEATURE_INITRD to LINUXRC and make it separate, not an alias to init 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-31 00:42:57 +02:00
Denys Vlasenko
a27dc33f97 make MKPASSWD a separate config option, not an automatic alias to cryptpw 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-31 00:32:39 +02:00
Denys Vlasenko
f75a96d74c udhcp: fix capitalization of two messages 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 18:49:45 +02:00
Denys Vlasenko
16efe19128 dhcpd: string reuse 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 18:44:52 +02:00
Denys Vlasenko
8f2e99c813 udhcp: get rid of bb_info_msg() 
function                                             old     new   delta
udhcpd_main                                         1501    1531     +30
d6_recv_raw_packet                                   251     264     +13
perform_d6_release                                   188     198     +10
udhcpc6_main                                        2443    2449      +6
udhcp_recv_raw_packet                                582     588      +6
udhcp_recv_kernel_packet                             132     138      +6
send_d6_renew                                        140     146      +6
d6_recv_kernel_packet                                118     124      +6
send_renew                                            77      82      +5
send_discover                                         85      90      +5
send_decline                                          84      89      +5
send_d6_select                                        97     102      +5
send_d6_discover                                     174     179      +5
perform_release                                      167     172      +5
count_lines                                           72      74      +2
udhcpc_main                                         2836    2837      +1
bb_info_msg                                          125       -    -125
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 17/4 up/down: 117/-180)         Total: -63 bytes
   text	   data	    bss	    dec	    hex	filename
 924935	    906	  17160	 943001	  e6399	busybox_old
 924736	    906	  17160	 942802	  e62d2	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 18:41:23 +02:00
Denys Vlasenko
80f0f1d712 setfiles: switch bb_info_msg to printf 
Presumably, bb_info_msg was used here for syslog logging (-l),
but there is no actual code to activate syslog logging.
Added a TODO note on that, so that selinux users would notice
and fix if needed.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 18:17:35 +02:00
Denys Vlasenko
2a17fbe88a sulogin: use bb_error_msg instead of bb_info_msg; better message 
Historic "System Maintenance Mode" message is a tiny bit cryptic.
Let's say explicitly what we are doing: we are giving user a shell
(presumably to do some maintenance in single-user mode).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 17:36:20 +02:00
Denys Vlasenko
32c08acba3 sulogin: remove suid paranoia code, explain why it's not necessary 
function                                             old     new   delta
sulogin_main                                         325     270     -55

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 17:27:32 +02:00
Denys Vlasenko
8ac6effb02 sulogin: Dorp incorrect comment about suid-ness 
Sulogin is not a suid app, should fail if run by non-root.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 16:50:19 +02:00
Denys Vlasenko
c418f48d8d fsck: use printf for message, not bb_info_msg 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 16:30:24 +02:00
Denys Vlasenko
3b757f0798 mkfs_vfat: use bb_error_msg for logging, not bb_info_msg 
This affects only a commented-out code section which searches for bad blocks

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 16:23:10 +02:00
Denys Vlasenko
cde1199e01 zcip: use bb_error_msg for logging, not bb_info_msg 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 16:22:13 +02:00
Denys Vlasenko
066e76befe Replace a few more bb_info_msg's by bb_error_msg or printf 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 16:20:28 +02:00
Denys Vlasenko
76b680c7a8 Use bb_error_msg instead of bb_info_msg in all commented-out debug printouts 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 16:04:37 +02:00
Ron Yorston
610c4c385b applet_tables: save space by removing applet name offsets 
The array applet_nameofs consumes two bytes per applet.  It encodes

   nofork/noexec flags
   suid flags
   the offset of the applet name in the applet_name string

Change the applet_table build tool to store the flags in two separate
arrays (applet_flags and applet_suid).  Replace applet_nameofs[] with a
smaller version that only stores a limited number of offsets.

This requires changes to the macros APPLET_IS_NOFORK, APPLET_IS_NOEXEC
and APPLET_SUID.

   According to Valgrind the original find_applet_by_name required
   353 cycles per call, averaged over all names.  Adjusting the number
   of known offsets allows space to be traded off against execution time:

      KNOWN_OFFSETS     cycles     bytes (wrt KNOWN_OFFSETS = 0)

           0             9057        -
           2             4604       32
           4             2407       75
           8             1342       98
          16              908      130
          32              884      194

   This patch uses KNOWN_OFFSETS = 8.

v2:
   Remove some dead code from the applet_table tool;
   Treat the applet in the middle of the table as a special case.

v3:
   Use the middle applet to adjust the start of the linear search as
   well as the last applet found.

v4:
   Use an augmented linear search in find_applet_by_name.
   Drop the special treatment of the middle name from get_applet_name:
   most of the advantage now derives from the last stored value.

v5:
   Don't store index in applet_nameofs, it can be calculated.

v6:
   Tweaks by Denys

function                                             old     new   delta
find_applet_by_name                                   25     125    +100
applet_suid                                            -      92     +92
run_applet_no_and_exit                               452     460      +8
run_applet_and_exit                                  695     697      +2
applet_name_compare                                   31       -     -31
applet_nameofs                                       734      14    -720
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 3/1 up/down: 202/-751)         Total: -549 bytes
   text       data        bss        dec        hex    filename
 925464        906      17160     943530      e65aa    busybox_old
 924915        906      17160     942981      e6385    busybox_unstripped

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-30 00:44:11 +02:00
Denys Vlasenko
9844d7e830 Revert "networking: properly initialize ipv6 scope id for printing it" 
This reverts commit 2fb63292f7.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-29 19:27:00 +02:00
Denys Vlasenko
20dd499341 modprobe: skip non-.conf files only in subdirectories 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-29 19:23:55 +02:00
Denys Vlasenko
31c984dd69 umount: build fix for older glibc 
Based on a patch by Veli-Pekka Peltola <veli-pekka.peltola@ray.fi>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-28 22:23:33 +02:00
Timo Teräs
2fb63292f7 networking: properly initialize ipv6 scope id for printing it 
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-28 22:16:48 +02:00
Denys Vlasenko
73dfdda92e grep: make errors other than "not found" result in exit code 2. Closes 8796 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-28 22:12:09 +02:00
Mike Frysinger
b9b7aa1910 ash_test: ignore generated files 
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2016-03-22 18:15:24 -04:00
Mike Frysinger
787972f60b ash_test: printenv: fix missing includes 
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2016-03-22 18:15:14 -04:00
Ron Yorston
3e3bfb896e ash: fix corruption of ${#var} if $var contains UTF-8 characters 
As reported in bug 8506:

   $ X=abcdÉfghÍjklmnÓpqrstÚvwcyz
   $ echo ${#X}
   abcd26

The result should be 26.

This regression was introduced by:

   <d68d1fb> 2015-05-18 [Ron Yorston]  ash: code shrink around varvalue

The length in characters was being used to discard the contents of
the variable instead of the length in bytes.

URL: https://bugs.busybox.net/8506
Reported-by: Martijn Dekker <martijn@inlv.org>
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2016-03-22 18:19:29 -04:00
Denys Vlasenko
6701e91d84 wget: make -T timeout work on header reads too. Closes 8636 
function                                             old     new   delta
set_alarm                                              -      27     +27
fgets_and_trim                                        76      92     +16
wget_main                                           2610    2616      +6
open_socket                                           64      54     -10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-17 21:52:42 +01:00
Denys Vlasenko
0d1b71e8e6 nmeter: reinstate and document -d-1 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-15 17:54:17 +01:00
Denys Vlasenko
41b1e2c392 nmeter: remove undocumented %NNNd specifier 
function                                             old     new   delta
nmeter_main                                          707     745     +38
init_functions                                        48      44      -4
init_delay                                            63       -     -63
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/1 up/down: 38/-67)            Total: -29 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-15 16:13:23 +01:00
Denys Vlasenko
a63e2a8cb2 nmeter: simple code shrink here and there 
function                                             old     new   delta
nmeter_main                                          709     707      -2
init_cr                                               15      12      -3
collect_time                                         141     131     -10
collect_cpu                                          610     593     -17
init_cpu                                              82      63     -19
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-51)             Total: -51 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-15 16:06:29 +01:00
Denys Vlasenko
8a26fda98c nmeter: convert field list to bit list 
function                                             old     new   delta
rdval                                                 34     157    +123
collect_int                                          123     122      -1
collect_thread_nr                                     65      62      -3
collect_blk                                          559     552      -7
collect_if                                           207     199      -8
collect_fork                                         119     111      -8
collect_ctx                                          119     111      -8
collect_fd                                            81      71     -10
collect_swp                                          120     107     -13
collect_cpu                                          623     610     -13
collect_mem                                          371     339     -32
rdval_loadavg                                         38       -     -38
vrdval                                               170       -    -170
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/10 up/down: 123/-311)        Total: -188 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-15 15:52:40 +01:00
Denys Vlasenko
99c71c9e80 nmeter: code shrink 
function                                             old     new   delta
put                                                   52      43      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-15 15:28:49 +01:00
Denys Vlasenko
e4de8c6316 nmeter: fix a bug with unterminated varargs 
function                                             old     new   delta
collect_mem                                          361     371     +10
collect_swp                                          116     120      +4
vrdval                                               168     170      +2
collect_thread_nr                                     63      65      +2
collect_int                                          121     123      +2
collect_if                                           205     207      +2
collect_fork                                         117     119      +2
collect_fd                                            79      81      +2
collect_ctx                                          117     119      +2
collect_cpu                                          621     623      +2
collect_blk                                          557     559      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 11/0 up/down: 32/0)              Total: 32 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-15 15:22:42 +01:00
Denys Vlasenko
fd5a2b7b04 New example config: android_502_defconfig 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-14 22:28:53 +01:00
Denys Vlasenko
23961b2fd3 more bionic fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-03-14 19:34:15 +01:00