Commit Graph

15155 Commits

Author SHA1 Message Date
Denys Vlasenko
9c143ce52d ash: retain envvars with bad names in initial environment. Closes 10231
Reworks "ash: [VAR] Sanitise environment variable names on entry"
commit.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-11-02 12:56:24 +01:00
Denys Vlasenko
d5c1482fba ntpd: skip over setting next DNS resolution attempt if it is not needed
function                                             old     new   delta
ntpd_main                                           1177    1197     +20
resolve_peer_hostname                                127     129      +2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-31 16:53:23 +01:00
Denys Vlasenko
f1fdda4542 Fix build failures if MAXHOSTNAMELEN or MAXPATHLEN is not defined
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-31 15:59:19 +01:00
James Clarke
6bcc2c0f6c grep: skip grepping symlinks to directories
When grep is passed -r, recursive_action will treat any symlinks to
directories not in the root as normal files, since it lstat's them and
is therefore told they are not directories. However, file_action_grep
will still try to fopen and read from them to see whether they match,
which varies in behaviour across platforms. Linux will give EISDIR and
thus grep will not find any matching lines, but FreeBSD will give the
raw contents of the directory itself, which may match the given pattern.
Also, if grep is passed -c, it will even print a count for these
symlinks, even on Linux.

Since this recursive_action behaviour is required for the correct
functioning of other applets, such as tar, grep should handle this
special case and skip any such symlinks.

function                                             old     new   delta
file_action_grep                                      80     161     +81

Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-31 15:23:55 +01:00
Denys Vlasenko
59a5604a79 ntpd: mention in help text that -d can be repeated
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-31 12:47:27 +01:00
Denys Vlasenko
6a4f223122 ntpd: improve treatment of DNS resolution failures
function                                             old     new   delta
ntpd_main                                           1106    1177     +71
resolve_peer_hostname                                122     127      +5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 76/0)               Total: 76 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-31 12:44:37 +01:00
James Clarke
518fb3ba19 udp_io, traceroute: Standardise IPv6 PKTINFO handling to be portable
The current standard (RFC 3542) is for IPV6_RECVPKTINFO to be given to
setsockopt, and IPV6_PKTINFO to be used as the packet type. Previously,
RFC 2292 required IPV6_PKTINFO to be used for both, but RFC 3542
re-purposed IPV6_PKTINFO when given to setsockopt. The special
Linux-specific IPV6_2292PKTINFO has the same semantics as IPV6_PKTINFO
in RFC 2292, but was introduced at the same time as IPV6_RECVPKTINFO.

Therefore, if we have IPV6_RECVPKTINFO available, we can use the RFC
3542 style, and if not, we assume that only the RFC 2292 API is
available, using IPV6_PKTINFO for both.

Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-30 16:06:50 +01:00
James Clarke
d1535216ca df: Use statvfs instead of non-standard statfs
Platforms differ on what their implementations of statfs include.
Importantly, FreeBSD's does not include a f_frsize member inside struct
statfs. However, statvfs is specified by POSIX and includes everything
we need, so we can just use that instead.

Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-30 15:30:59 +01:00
James Clarke
24e17b4385 xfuncs: Handle missing non-POSIX termios constants
Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-30 15:18:32 +01:00
James Clarke
160d027c21 blkdiscard: Only build on Linux
Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-30 14:55:01 +01:00
James Clarke
4d0971b7fb networking: Fall back on IPPROTO_RAW when SOL_RAW is not defined
Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-30 14:51:25 +01:00
Denys Vlasenko
a1e9bc6876 ntpd: perform DNS resolution out of send/receive loop - closes 10466
Bad case: send request to server1good.com; then try to resolve server2bad.com -
this fails, and failure takes ~5 secs; then receive server1's
response 5 seconds later. We'll never sync up in this case...

function                                             old     new   delta
ntpd_main                                           1079    1106     +27

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-28 17:56:43 +02:00
Eugene Rudoy
ecce3a1999 iproute/iprule: support toolchains without RTA_TABLE routing attribute
iproute.c: In function 'print_route':
 iproute.c:85:9: error: 'RTA_TABLE' undeclared (first use in this function)
 iproute.c:85:9: note: each undeclared identifier is reported only once for each function it appears in
 iproute.c: In function 'iproute_modify':
 iproute.c:467:36: error: 'RTA_TABLE' undeclared (first use in this function)

Fix it by partially #ifdef'ing the code added in b42107f215

Signed-off-by: Eugene Rudoy <gene.devel@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-27 19:25:08 +02:00
Denys Vlasenko
d3a7e88008 time: fix build for toolchains without O_CLOEXEC
Based on patch by Eugene Rudoy <gene.devel@gmail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-27 19:05:00 +02:00
Denys Vlasenko
9ac42c5005 unlzma: fix SEGV, closes 10436
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-27 15:37:03 +02:00
Denys Vlasenko
0402cb32df bunzip2: fix runCnt overflow from bug 10431
This particular corrupted file can be dealth with by using "unsigned".
If there will be cases where it genuinely overflows, there is a disabled
code to deal with that too.

function                                             old     new   delta
get_next_block                                      1678    1667     -11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-22 18:23:23 +02:00
Denys Vlasenko
25f3b737dc hush: fix comment parsing in cmd, closes 10421
function                                             old     new   delta
parse_stream                                        2692    2690      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-22 15:55:48 +02:00
Markus Gothe
045327a418 lsscsi: fix xchdir("..") from symlink in /sys/bus/scsi/devices
Signed-off-by: Markus Gothe <nietzsche@lysator.liu.se>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-22 10:43:43 +02:00
Denys Vlasenko
14c85eb7db whitespace fixes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-12 19:40:47 +02:00
Denys Vlasenko
3c183a8758 typo fix
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-12 19:35:42 +02:00
Denys Vlasenko
a2e32b324e ash: survive failures in $PS1 expansion. Closes 10371
function                                             old     new   delta
expandstr                                            120     209     +89

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-12 19:20:13 +02:00
Avi Halachmi
0fd5dbba8f lineedit: improve multiline PS1 - redraw using last PS1 line. Closes 10381
This patch only affects prompts with newlines.

We redraw the prompt [+ input] occasionally, e.g. during tab completion,
history browsing or search, etc, and we expect it to align with prior
redraws, such that the visible effect is that only the input changes.

With multi-line PS1, redraw always printed the prompt some lines below
the old one, which resulted in terminal scroll during every redraw.

Now we only redraw the last PS1 line, so vertical alignment is easier to
manage (we already calculated it using only the last line, but re-drew
all lines - that was the culprit), which fixes those extra scrolls.

Notes:
- We now use the full prompt for the initial draw, after clear-screen (^L),
  and after tab-completion choices are displayed. Everything else now
  redraws using the last/sole prompt line.

- During terminal resize we now only redraw the last[/sole] prompt line,
  which is arguably better because it's hard to do right (and we never did).

- Good side effect for reverse-i-search: its prompt now replaces only the
  last line of the original prompt - like other shells do.

function                                             old     new   delta
put_prompt_custom                                      -      66     +66
draw_custom                                            -      66     +66
parse_and_put_prompt                                 766     806     +40
read_line_input                                     3867    3884     +17
input_tab                                           1069    1076      +7
cmdedit_setwidth                                      61      63      +2
redraw                                                59      47     -12
put_prompt                                            46       -     -46
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 4/1 up/down: 198/-58)           Total: 140 bytes

Signed-off-by: Avi Halachmi <avihpit@yahoo.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-12 18:26:13 +02:00
Denys Vlasenko
1121b4e568 sendmail allow "=" symbol in recipient, closes 10241
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 17:18:23 +02:00
Denys Vlasenko
2ab9403119 whitespace and comment format fixes, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 15:33:28 +02:00
Denys Vlasenko
a02a4e9830 whitespace and comment format fixes, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 15:19:25 +02:00
Denys Vlasenko
416899fca6 do not include <sys/stat.h> just before "libbb.h", it's there already
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 14:41:36 +02:00
Denys Vlasenko
ebe6d9d875 whitespace and comment format fixes, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 14:40:24 +02:00
Denys Vlasenko
099ef9324e free: no longer include common_bufsiz.h
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 14:16:09 +02:00
Denys Vlasenko
318c8114de free: make it NOFORK
function                                             old     new   delta
parse_cached_kb                                        -      85     +85
free_main                                            580     537     -43
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 85/-43)             Total: 42 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 14:06:49 +02:00
Denys Vlasenko
6e2beb7dfe date: maybe_set_utc only once
It's not clear at all why we do it twice. git archaeology did not help.

function                                             old     new   delta
date_main                                            836     839      +3
maybe_set_utc                                         16       -     -16

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 12:53:25 +02:00
Avi Fishman
b5d9ba8fe6 i2cset: fix 'i' & 's' modes (3 extra bytes were sent)
When 'i' or 's' modes are selected block array is filled from offset 3
(blen = 3) but copied to data.block buffer from offset 0 so first 3 bytes
contains garbage from stack.
The buffer that is sent is also 3 bytes too long due to those extra 3
bytes.

Signed-off-by: Avi Fishman <AviFishman70@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 11:25:16 +02:00
Denys Vlasenko
6f97b30a90 use %m printf specifier where appropriate
function                                             old     new   delta
out                                                   85      75     -10
udhcpd_main                                         1472    1461     -11
open_stdio_to_tty                                     98      85     -13
init_exec                                            245     232     -13
udhcpc_main                                         2763    2749     -14
do_cmd                                              4771    4755     -16
status_line_bold_errno                                32      14     -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-95)             Total: -95 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-29 18:17:25 +02:00
Denys Vlasenko
f625836e60 udhcpc[6]: make log2 messages for chaddr field indented like the rest
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-29 18:02:01 +02:00
Denys Vlasenko
a6a3ad3273 udhcpc: paranoia when using kernel UDP mode for sending renew: server ID may be bogus
With new code, we request that target IP (server ID) must be directly reachable.
If it's not, this happens:

udhcpc: waiting 2000 seconds
udhcpc: entering listen mode: kernel
udhcpc: opening listen socket on *:68 wlan0
udhcpc: entering renew state
udhcpc: sending renew to 1.1.1.1
udhcpc: send: Network is unreachable
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 1.1.1.1 needs routing, this is fishy!
udhcpc: entering rebinding state
udhcpc: entering listen mode: raw
udhcpc: created raw socket
udhcpc: sending renew to 0.0.0.0
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ going to use broadcast

which is the desired behavior. Before the patch, packet to 1.1.1.1 was routed
over eth0 (!) and maybe even into Internet (!!!).

function                                             old     new   delta
udhcpc_main                                         2752    2763     +11
udhcp_send_kernel_packet                             295     301      +6
send_renew                                            82      84      +2
send_packet                                          166     168      +2
bcast_or_ucast                                        23      25      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 23/0)               Total: 23 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-29 16:02:11 +02:00
Denys Vlasenko
2b9acc60c0 udhcpc[6]: initialize entire sockaddr_ll
I see random field values like sll_hatype=0x267 when I strace.
They seem to not matter, but just in case they sometimes do,
let's at least have deterministic values (via memset(0)).

function                                             old     new   delta
change_listen_mode                                   308     322     +14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-29 14:22:43 +02:00
Denys Vlasenko
0c4dbd481a regularize format of source file headers, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-18 16:28:43 +02:00
Denys Vlasenko
b63afead44 ip,ip*: make them NOEXEC
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-18 15:45:13 +02:00
Denys Vlasenko
c3e60e1e9a update NOFORK_NOEXEC.lst
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-18 14:34:15 +02:00
Denys Vlasenko
a6390ed77e httpd: fix handling of range requests
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-18 13:09:11 +02:00
Denys Vlasenko
3f5ba0c872 stty: add cmspar, flusho, extproc attributes
function                                             old     new   delta
mode_info                                            688     704     +16
mode_name                                            502     516     +14
wrapf                                                162     157      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 30/-5)              Total: 25 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-18 12:17:20 +02:00
Denys Vlasenko
3c34f681b3 netcat: net applet (alias to nc)
function                                             old     new   delta
packed_usage                                       31807   31856     +49
applet_names                                        2701    2708      +7
applet_main                                         1560    1564      +4
applet_install_loc                                   195     196      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 61/0)               Total: 61 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-15 18:55:53 +02:00
Denys Vlasenko
7735e52df4 Clarify OPOST bit meaning
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-15 17:19:55 +02:00
Denys Vlasenko
aaaaaa5ad6 less,microcom,lineedit: use common routine to set raw termios
function                                             old     new   delta
get_termios_and_make_raw                               -     139    +139
xget1                                                 39       8     -31
read_line_input                                     3912    3867     -45
less_main                                           2525    2471     -54
set_termios_to_raw                                   116      36     -80
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/4 up/down: 139/-210)          Total: -71 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-15 17:14:01 +02:00
Denys Vlasenko
e58b44755d hexedit: code shrink
function                                             old     new   delta
hexedit_main                                        1171    1170      -1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-15 15:23:47 +02:00
Denys Vlasenko
f3fa865258 hexedit: fixes to "goto address" code
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-15 14:00:41 +02:00
Denys Vlasenko
9a4100cf53 hexedit: position in correct column on "goto" command
function                                             old     new   delta
hexedit_main                                        1169    1202     +33

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-14 13:57:07 +02:00
Denys Vlasenko
44cb1666ef hexedit: code shrink
function                                             old     new   delta
hexedit_main                                        1176    1169      -7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-14 11:20:36 +02:00
Denys Vlasenko
8838c6d53e hexdump: code shrink
function                                             old     new   delta
remap                                                173     178      +5
move_mapping_lower                                   107     109      +2
move_mapping_further                                 141     143      +2
hexedit_main                                        1191    1176     -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 9/-15)              Total: -6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-14 11:01:37 +02:00
Denys Vlasenko
d54f58d487 hexedit: implement "[enter] goto offset" key
This is a must if you need to edit sector 123456789999 on your /dev/disk.

   text	   data	    bss	    dec	    hex	filename
 922745	    481	   6832	 930058	  e310a	busybox_old
 923023	    481	   6832	 930336	  e3220	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-14 10:51:12 +02:00
Denys Vlasenko
363fb5ec40 hexedit: restore screen on exit
function                                             old     new   delta
hexedit_main                                         998    1082     +84
restore_term                                           -      29     +29
remap                                                168     173      +5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 118/0)             Total: 118 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-14 09:42:40 +02:00