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Author SHA1 Message Date
Denys Vlasenko
44257ad5d0 hush: fix IFS handling in read 
$ echo "X:Y:" | (IFS=": " read x y; echo "|$x|$y|")
|X|Y|
$ echo "X:Y  :  " | (IFS=": " read x y; echo "|$x|$y|")
|X|Y|

function                                             old     new   delta
shell_builtin_read                                  1320    1426    +106

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-11 17:18:34 +02:00
Denys Vlasenko
9678636911 hush: IFS fixes 
$ IFS=": "; x=" "; set x $x; for v; do echo "|$v|"; done
|x|
$ IFS=": "; x=":"; set x $x; for v; do echo "|$v|"; done
|x|
||

function                                             old     new   delta
run_pipe                                            1789    1870     +81
expand_on_ifs                                        310     361     +51
pseudo_exec_argv                                     588     591      +3
builtin_local                                         50      53      +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 138/0)             Total: 138 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-11 16:02:58 +02:00
Denys Vlasenko
34179956f9 hush: fix "$v" expansion in case patterns when v='[a]' 
function                                             old     new   delta
run_list                                            1053    1063     +10
setup_redirects                                      311     320      +9
encode_then_expand_string                            135     142      +7
run_pipe                                            1784    1789      +5
expand_assignments                                    81      86      +5
expand_string_to_string                              124     125      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/0 up/down: 37/0)               Total: 37 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-11 13:47:59 +02:00
Denys Vlasenko
680c3016a2 ash: parser: Allow newlines within parameter substitution 
Upstream commit:

Date: Thu, 22 Mar 2018 21:41:24 +0800
parser: Allow newlines within parameter substitution

    On Fri, Mar 16, 2018 at 11:27:22AM +0800, Herbert Xu wrote:
    > On Thu, Mar 15, 2018 at 10:49:15PM +0100, Harald van Dijk wrote:
    > >
    > > Okay, it can be trivially modified to something that does work in other
    > > shells (even if it were actually executed), but gets rejected at parse time
    > > by dash:
    > >
    > >   if false; then
    > >     : ${$+
    > >   }
    > >   fi
    >
    > That's just a bug in dash's parser with ${} in general, because
    > it bombs out without the if clause too:
    >
    > 	: ${$+
    > 	}

    This patch fixes the parsing of newlines with parameter substitution.

    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-11 12:39:18 +02:00
Denys Vlasenko
0403bedccc hush: optimize parse_stream() 
Since we check for '\' anyway when we determine whether we can look ahead,
we can just check for *and handle* it there.

function                                             old     new   delta
parse_stream                                        2751    2740     -11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-11 01:34:46 +02:00
Denys Vlasenko
89e9d5534d hush: do not drop backslash from eval 'echo ok\' 
newer bash does not drop it, most other shells too

function                                             old     new   delta
unbackslash                                           39      57     +18
parse_stream                                        2753    2751      -2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 18/-2)              Total: 16 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-11 01:15:33 +02:00
Denys Vlasenko
3632cb15f1 shell: add comments about [[, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 15:25:41 +02:00
Denys Vlasenko
4709df0f15 hush: fix handling of \<eof> in double-quoted strings 
function                                             old     new   delta
encode_string                                        268     250     -18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 14:49:01 +02:00
Denys Vlasenko
bcf56114fa hush: fix eval 'echo ok\' 
function                                             old     new   delta
parse_stream                                        2762    2753      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 14:40:23 +02:00
Denys Vlasenko
92a930b4e8 hush: simplify \<newline> code, part 3 
function                                             old     new   delta
parse_stream                                        2780    2762     -18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 14:27:08 +02:00
Denys Vlasenko
e8b1bc0481 hush: simplify \<newline> code, part 2 
function                                             old     new   delta
parse_stream                                        2787    2780      -7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 14:23:49 +02:00
Denys Vlasenko
1c57269b5d hush: simplify \<newline> code, part 1 
function                                             old     new   delta
parse_stream                                        2919    2787    -132

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 14:23:49 +02:00
Denys Vlasenko
09b7a7ec0e hush: put "current word" structure into parsing context 
function                                             old     new   delta
done_word                                            790     767     -23
parse_stream                                        3018    2919     -99
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-122)           Total: -122 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 03:22:10 +02:00
Denys Vlasenko
e93031e6dc ash: if "[[" bashism is not supported, do not handle it anywhere 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 01:23:19 +02:00
Denys Vlasenko
57b7efb0d5 ash: trivial code shrink 
function                                             old     new   delta
parse_command                                       1677    1674      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-10 01:20:26 +02:00
Ron Yorston
1f27fa9838 testsuite: allow tests to work in paths containing spaces 
Tweak some tests so they work when the path to the test directory or
$HOME contains spaces.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-09 20:35:48 +02:00
Denys Vlasenko
9db344a0f4 hush: fix var_leaks.tests and var_preserved.tests on NOMMU 
function                                             old     new   delta
remove_nested_vars                                     -      77     +77
run_pipe                                            1756    1786     +30
pseudo_exec_argv                                     376     379      +3
leave_var_nest_level                                  98      32     -66
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/1 up/down: 110/-66)            Total: 44 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-09 19:05:11 +02:00
Denys Vlasenko
eb0de05d68 hush: fix func_return2.tests on NOMMU 
function                                             old     new   delta
hush_main                                           1714    1718      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-09 17:54:07 +02:00
Denys Vlasenko
a1870f4807 unlzma: fix segfault on bad archive 
function                                             old     new   delta
unpack_lzma_stream                                  2647    2653      +6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 20:45:16 +02:00
Denys Vlasenko
38ccd6af8a bzip2: fix two crashes on corrupted archives 
As it turns out, longjmp'ing into freed stack is not healthy...

function                                             old     new   delta
unpack_usage_messages                                  -      97     +97
unpack_bz2_stream                                    369     409     +40
get_next_block                                      1667    1677     +10
get_bits                                             156     155      -1
start_bunzip                                         212     183     -29
bb_show_usage                                        181     120     -61
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/3 up/down: 147/-91)            Total: 56 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 20:05:04 +02:00
Denys Vlasenko
8e2174e9bd wget: check chunk length for overflowing off_t 
function                                             old     new   delta
retrieve_file_data                                   428     465     +37
wget_main                                           2386    2389      +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 40/0)               Total: 40 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 18:06:24 +02:00
Denys Vlasenko
7bcde5f00d libbb.h: always include sys/resource.h 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 17:23:27 +02:00
Denys Vlasenko
87a08e476b lzop: remove method checks which are always true/false 
function                                             old     new   delta
do_lzo_compress                                      232     224      -8
lzo_compress                                         531     488     -43
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-51)             Total: -51 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 16:44:45 +02:00
Denys Vlasenko
3d4f688a19 lzop: buffer several 32-bit writes when we start a new compressed block 
function                                             old     new   delta
lzo_compress                                         483     531     +48

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 16:31:02 +02:00
Denys Vlasenko
24ef5c6375 lzop: reuse strings 
function                                             old     new   delta
lzo_compress                                         470     483     +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 13/0)               Total: 13 bytes
   text    data     bss     dec     hex filename
 940011     477    7284  947772   e763c busybox_old
 939976     477    7284  947737   e7619 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 14:00:03 +02:00
Denys Vlasenko
15684bf545 lzop: checksum reads do not need to be checksummed 
function                                             old     new   delta
do_lzo_decompress                                    404     427     +23
f_read32                                              22       -     -22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 13:45:04 +02:00
Denys Vlasenko
3a7d16d488 lzop: don't support ancient versions < 0.94 (15 Oct 1997) 
0.94 came only 2 months after initial 0.90:

    0.90 (10 Aug 1997): First public release of lzop
    ...
    0.94 (15 Oct 1997): Header format change

function                                             old     new   delta
do_lzo_decompress                                    411     404      -7
f_read8                                               24       -     -24
f_read16                                              31       -     -31
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/1 up/down: 0/-62)             Total: -62 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 13:35:28 +02:00
Denys Vlasenko
434f95960a lzop: code shrink by using header_t matching on-disk layout 
function                                             old     new   delta
add_bytes_to_chksum                                   37      47     +10
lzo_decompress                                       524     532      +8
init_chksum                                           14      21      +7
chksum_getresult                                      13      17      +4
f_read                                                33      28      -5
f_write8                                              20       -     -20
f_write32                                             22       -     -22
f_write16                                             25       -     -25
f_write                                               36       -     -36
do_lzo_compress                                      328     232     -96
do_lzo_decompress                                    526     411    -115
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 4/3 up/down: 29/-319)          Total: -290 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-08 13:33:43 +02:00
Denys Vlasenko
7924b69f99 tar: trim help text 
Usage: tar c|x|t [-ZzJjahmvokO] [-f TARFILE] [-C DIR] [-T FILE] [-X FILE] [--exclude PATTERN]... [FILE]...

Create, extract, or list files from a tar file

Operation:  <============== DELETED
    c	Create
    x	Extract
    t	List
    -f FILE	Name of TARFILE ('-' for stdin/out)
    -C DIR	Change to DIR before operation
    -v	Verbose
    -O	Extract to stdout
    -m	Don't restore mtime
    -o	Don't restore user:group
    -k	Don't replace existing files
    -Z	(De)compress using compress
    -z	(De)compress using gzip
    -J	(De)compress using xz
    -j	(De)compress using bzip2
    -a	(De)compress using lzma
    -h	Follow symlinks
    -T FILE	File with names to include
    -X FILE	File with glob patterns to exclude
    --exclude PATTERN	Glob pattern to exclude

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 21:04:39 +02:00
Denys Vlasenko
8d6eab3225 hush: fix prompt in multi-line $(()) 
Now shows PS2 in this case:

/path/to/dir $ a=b; echo $((
> _

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 17:01:31 +02:00
Denys Vlasenko
17058a06c4 libbb: switch bb_ask_noecho() to "mallocing" string return API 
function                                             old     new   delta
bb_ask_noecho                                        313     330     +17
get_cred_or_die                                      125     115     -10
passwd_main                                          995     958     -37
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 17/-47)            Total: -30 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 15:50:30 +02:00
Denys Vlasenko
bae8fc4436 xargs: use bb_ask_y_confirmation_FILE() instead of homegrown copy 
function                                             old     new   delta
bb_ask_y_confirmation_FILE                             -      83     +83
inetd_main                                          2033    2043     +10
udhcp_send_kernel_packet                             295     301      +6
rmescapes                                            306     310      +4
send_tree                                            353     355      +2
i2cdetect_main                                       674     672      -2
confirm_or_abort                                      43      38      -5
get_terminal_width_height                            242     234      -8
bb_ask_y_confirmation                                 76      10     -66
xargs_main                                           823     755     -68
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/5 up/down: 105/-149)          Total: -44 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 15:23:10 +02:00
Denys Vlasenko
77cb6b99a4 libbb: rename bb_ask -> bb_ask_noecho, bb_ask_confirmation -> bb_ask_y_confirmation 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 15:08:12 +02:00
Denys Vlasenko
2f094ae821 telnet: move winsize detection closer to I/O loop, delete non-functioning debug code 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 15:02:20 +02:00
Denys Vlasenko
e0afe0a9fd ftpd: allow -A if !FTPD_AUTHENTICATION as well 
Users will be able to use "ftpd -A" in scripts regardless of build config

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 14:18:42 +02:00
Denys Vlasenko
8edaaced16 ftpd: added -A option to disable all authentication, closes 10921 
function                                             old     new   delta
packed_usage                                       32745   32777     +32
ftpd_main                                           2162    2156      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 32/-6)              Total: 26 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 14:02:21 +02:00
Denys Vlasenko
32c3e3a44c wget,ftpd: shorten and reuse strings 
function                                             old     new   delta
wget_main                                           2382    2386      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 4/0)                 Total: 4 bytes
   text	   data	    bss	    dec	    hex	filename
 934228	    477	   7296	 942001	  e5fb1	busybox_old
 934202	    477	   7296	 941975	  e5f97	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 13:22:52 +02:00
Denys Vlasenko
9fe8bd8d61 httpd: do not default to Content-type: application/octet-stream 
Instead, simply don't send this header.

On Mon, Apr 2, 2018 at 8:17 PM, xisd <xisd-dev@riseup.net> wrote:
> I had some trouble using busybox httpd to serve a static website and I
> thought the issue might be of interest.
>
> My problem is related to something that seem quite common for static
> site generator :  the use of html files without the '.html' extension
> (it is called 'clean url'...)
>
> Most web server guess that these files are html and display them like
> any other .html files.
>
> From what I understood, the MIME type for files without extension in
> busybox htttp default settings is 'application/octet-stream', and
> because of that 'clean url' pages are not displayed.
>
> It is only trouble because I wanted to deploy my website on freshly
> installed linux without editing any configuration.
>
> The default MIME setting make sense to me as it is, I just thought that
> might be worth mentioning since the use of 'clean url' seem to be a
> common practice for static sites generators (the one I use is callled
> 'yellow' (https://github.com/datenstrom/yellow))
>
> Here is a link for the related issue on github :
> https://github.com/datenstrom/yellow/issues/317

function                                             old     new   delta
send_headers                                         702     718     +16
send_headers_and_exit                                 23      20      -3
handle_incoming_and_exit                            2794    2791      -3
send_file_and_exit                                   772     756     -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 16/-22)             Total: -6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-07 01:13:30 +02:00
Denys Vlasenko
6b6a3d9339 scripts/kconfig/mconf.c: survive is SIGWINCH is not defined 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-06 19:05:53 +02:00
Denys Vlasenko
2c99702810 i386: make stack size optimization selectable, and allow i486 insns (bswap) 
It's hard to imagine someone still using non-bswap equipped CPU

function                                             old     new   delta
xmalloc_optname_optval                               888     879      -9
write_leases                                         214     205      -9
write32                                               36      27      -9
update_status                                        612     603      -9
udhcpd_main                                         1468    1459      -9
udhcpc_main                                         2708    2699      -9
udhcp_run_script                                     804     795      -9
sha256_process_block64                               423     414      -9
sha1_process_block64                                 337     328      -9
sha1_end                                              80      71      -9
send_ACK                                             161     152      -9
select_lease_time                                     64      55      -9
rpm_getint                                           118     109      -9
readprofile_main                                    1719    1710      -9
read32                                                33      24      -9
rdate_main                                           236     227      -9
machtime                                              39      30      -9
inet_addr_match                                      103      94      -9
get_prefix                                           344     335      -9
f_write32                                             31      22      -9
f_read32                                              31      22      -9
dumpleases_main                                      620     611      -9
KeyExpansion                                         197     188      -9
udhcp_str2optset                                     536     518     -18
read_config                                          222     204     -18
lfp_to_d                                              55      37     -18
ipaddr_modify                                       1226    1208     -18
dnsd_main                                           1278    1260     -18
des_crypt                                           1344    1326     -18
d_to_lfp                                             106      88     -18
bb_bswap_64                                           29      11     -18
INET_setroute                                        827     809     -18
read_leases                                          330     309     -21
zcip_main                                           1256    1229     -27
send_offer                                           476     449     -27
ipcalc_main                                          534     507     -27
handle_incoming_and_exit                            2821    2794     -27
fmt_time_bernstein_25                                131     104     -27
common_traceroute_main                              3804    3768     -36
rpm_gettags                                          451     397     -54
parse_args                                          1412    1358     -54
volume_id_probe_hfs_hfsplus                          627     564     -63
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/42 up/down: 0/-732)          Total: -732 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-06 19:01:51 +02:00
Denys Vlasenko
2ab994f707 placate gcc-8.0.1 warnings 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-06 18:26:33 +02:00
Denys Vlasenko
f5018dac21 hush: fix "unset PS1/PS2", and put them into initial variable set 
"unset PS1/PS2" causes prompts to be empty strings

function                                             old     new   delta
hush_main                                           1031    1089     +58
goto_new_line                                         27      33      +6
fgetc_interactive                                    244     245      +1
unset_local_var                                      155     149      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 65/-6)              Total: 59 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-06 17:58:21 +02:00
Denys Vlasenko
d1d6d9c5d8 sort: smaller and more agressive FEATURE_SORT_OPTIMIZE_MEMORY 
function                                             old     new   delta
sort_main                                           1098    1037     -61

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-06 16:44:50 +02:00
Denys Vlasenko
00bd76728d hush: if we did match "LINENO" or "OPTIND", stop further comparisons 
function                                             old     new   delta
handle_changed_special_names                          99     101      +2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-06 14:57:53 +02:00
Denys Vlasenko
cf079ffe1c hush: consolidate handling of setting/unsetting of PSn, LINENO, OPTIND 
function                                             old     new   delta
handle_changed_special_names                           -      99     +99
unset_local_var                                      256     155    -101
set_local_var                                        557     437    -120
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 99/-221)          Total: -122 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-06 14:50:12 +02:00
Denys Vlasenko
de02625985 hush: update to correctly handle changed var_bash[346].tests 
function                                             old     new   delta
expand_one_var                                      1612    1604      -8

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-05 17:04:53 +02:00
Denys Vlasenko
f2ed39b930 hush: implement "hush -s" 
function                                             old     new   delta
hush_main                                           1015    1031     +16
packed_usage                                       32757   32745     -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 16/-12)              Total: 4 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-05 16:46:49 +02:00
Denys Vlasenko
d878ccca9c placate gcc 8.0.1 sprintf overflow warnings in config tools 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-05 15:21:34 +02:00
Denys Vlasenko
21b7f1b6b6 hush: fix a few more corner cases with empty-expanding cmds 
See added testcases

function                                             old     new   delta
run_pipe                                            1723    1784     +61

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-05 15:15:53 +02:00
Denys Vlasenko
41d8f10813 hush: fix corner cases with exec in empty expansions 
Cases like these:

var=val exec >redir

var=val `` >redir

function                                             old     new   delta
run_pipe                                            1701    1723     +22
redirect_and_varexp_helper                            56      55      -1
------------------------------------------------------------------------------
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-05 14:41:21 +02:00