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40 Commits

Author SHA1 Message Date
Denys Vlasenko
6f7a009649 awk: disallow "str"++, closes bug 12981 
function                                             old     new   delta
parse_expr                                           887     896      +9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-06-09 01:33:54 +02:00
Denys Vlasenko
bd8b05ba1b awk: fix more "length" cases, closes 12486 
function                                             old     new   delta
next_token                                           808     831     +23

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-02-02 23:28:55 +01:00
Denys Vlasenko
22cc92833f awk: fix testsuite 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-06-08 13:00:46 +02:00
Brian Foley
1c42c18e96 awk: Fix overly permissive func arg list parsing 
It allows things like 'func f(a b)' and 'func f(a,)' which GNU awk forbids.

function                                             old     new   delta
parse_program                                        327     367     +40
chain_expr                                            40      67     +27
parse_expr                                           891     915     +24
EMSG_TOO_FEW_ARGS                                     30      18     -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 91/-12)             Total: 79 bytes

Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-21 12:59:19 +01:00
Brian Foley
08a514c097 awk: Syntax error if delete isn't given an arg. 
Unlike exit and return, delete strictly requires an arg, and derefs a
null pointer if executed without one.

Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-21 12:55:49 +01:00
Brian Foley
dac15a10ac awk: Guard pointer chasing when parsing ternary expressions. 
Avoids an uninit pointer deref for some malformed ternary exprs.

Add a test that would crash in busybox before this fix.

Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-21 12:55:49 +01:00
Denys Vlasenko
2454e678cb awk: do not allow $(-1) 
function                                             old     new   delta
EMSG_NEGATIVE_FIELD                                    -      25     +25
evaluate                                            3390    3403     +13
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 38/0)               Total: 38 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-23 10:53:18 +02:00
Denys Vlasenko
6f4a785bd1 awk: fix 'delete array[var--]' decrementing var twice 
function                                             old     new   delta
evaluate                                            3395    3390      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-07 01:19:08 +01:00
Brian Foley
61d5997b58 awk: fix segfault on for loop syntax error 
Parsing "for()" segfaults as awk fails to find loop iteration expressions.

Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-10-24 02:09:56 +02:00
Denys Vlasenko
28b00ce6ff awk: support "length" form of "length()". Closes 8371 
function                                             old     new   delta
parse_expr                                           805     848     +43
tokenlist                                            447     448      +1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-02 02:41:39 +02:00
Denys Vlasenko
5f8daefb83 awk: fix handling of "if ... break ; else ..." - closes 7226 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-06-26 16:40:28 +02:00
Denys Vlasenko
198b02f7dd fix failures found by randomconfig builds 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-12-31 23:22:36 +01:00
Denys Vlasenko
bd0e221620 awk: fix a bug in argc counting in recent change 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-21 15:09:55 +01:00
Denys Vlasenko
7985bc109e awk: fix length(array) 
function                                             old     new   delta
evaluate                                            3526    3548     +22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-10-12 04:51:54 +02:00
Bernhard Reutner-Fischer
a060a1ad96 awk: Fix handling of functions with empty body 
ammend b79a0fef99 to properly
handle functions defined in another scope.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
 2013-07-31 21:51:14 +02:00
Denys Vlasenko
b855460adc awk.tests: add test for recent large integer fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-22 11:49:06 +02:00
Bernhard Reutner-Fischer
b79a0fef99 awk: Fix handling of functions with empty body 
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
 2013-03-13 09:47:07 +01:00
Denys Vlasenko
df8066a78c awk: fix FS assignment behavior. Closes 5108 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-07-11 01:27:15 +02:00
Denys Vlasenko
ea664dde87 awk: make -F STR interpret escape sequences. Closes 5126 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-06-22 18:41:01 +02:00
Tanguy Pruvot
0a393cf7da testsuite: some more awk tests related to conditions 
Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-06-11 10:33:45 +02:00
Denys Vlasenko
7b46d11582 awk: fix a SEGV 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-11 00:30:56 +02:00
Denys Vlasenko
6a0d7490ea awk: fix segfault on closing non-opened file 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-10-23 21:02:15 +02:00
Denys Vlasenko
d527e0c81d awk: 00.123 is not a octal constant; neither is 009.123. fixing this 
function                                             old     new   delta
my_strtod                                             80     113     +33

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-05 13:22:11 +02:00
Denys Vlasenko
0ef64bdb40 *: make GNU licensing statement forms more regular 
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-16 20:14:46 +02:00
Denys Vlasenko
bfa1b2e8e8 randomtest fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-11 03:53:57 +02:00
Denys Vlasenko
8e3aff0ce0 more randomconfig testsuite fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-10 11:00:11 +02:00
Denys Vlasenko
e3d90a90d4 randomconfig testsuite fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-10 05:53:16 +02:00
Denys Vlasenko
90f19fa468 awk: add two tests we currently fail 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-11 08:27:53 +01:00
Denys Vlasenko
3cb60c3973 awk: fix the case where nested "for" loops with the same variable misbehave 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-10 19:20:32 +01:00
Alexander Shishkin
d03cd3be24 awk: skip whitespace between array name and subscript 
It is supported in both mawk and gawk and there are actually scripts
out there that use this "flexibility".

function                                             old     new   delta
next_token                                          1144    1152      +8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 8/0)                 Total: 8 bytes

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-02-26 08:48:56 +01:00
Denys Vlasenko
1284774d60 awk: fix an incorrect casting to string (bug 725). -44 bytes. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-30 01:15:04 +01:00
Mike Frysinger
caa79406aa tests: fix POSIX shell source style 
The source command does not search $PWD, and bash recently fixed itself to
follow this behavior for /bin/sh.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2009-11-04 18:41:22 -05:00
Denis Vlasenko
67b5eeb933 awk: fix long field separators case. By Ian Wienand (ianw AT vmware.com) 2009-04-12 13:54:13 +00:00
Denis Vlasenko
7a6766428e awk: fix compat issue found by gpm build 
function                                             old     new   delta
as_regex                                             105     131     +26
hash_find                                            247     233     -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 26/-14)             Total: 12 bytes
 2009-03-15 22:20:31 +00:00
Denis Vlasenko
41d5ebee17 awk: in BEGIN section $0 should be "", not "0". 2009-01-25 01:00:15 +00:00
Denis Vlasenko
a2e1eea189 awk: improve nadling of negative numbers in bitwise ops; 
fix handling of octal costants. add test for it

function                                             old     new   delta
getvar_i_int                                           -      93     +93
my_strtod                                              -      84     +84
qrealloc                                              33      36      +3
getvar_i                                              99      95      -4
next_token                                           979     919     -60
evaluate                                            6359    5627    -732
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 1/3 up/down: 180/-796)         Total: -616 bytes
 2008-09-02 09:00:23 +00:00
Denis Vlasenko
66496d75a7 build system: echo and test features may be enabled 
even if these applets are enabled as ash builtins only
testsuite: add some awk tests
 2008-08-29 08:37:07 +00:00
Denis Vlasenko
bb13079c8e comm: almost total rewrite; add testsuite 
function                                             old     new   delta
writeline                                            128     125      -3
comm_main                                            540     239    -301
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-304)           Total: -304 bytes
 2008-07-15 06:45:14 +00:00
Denis Vlasenko
3bb2bbd684 awk: fix a case with multiple -f options. simplify -f file reading. 
function                                             old     new   delta
parse_expr                                           833     841      +8
qrealloc                                              33      36      +3
next_input_file                                      203     198      -5
afopen                                                22       -     -22
ftello                                                41       -     -41
ftell                                                 41       -     -41
__GI_ftell                                            41       -     -41
awk_main                                            1002     944     -58
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 2/2 up/down: 11/-208)          Total: -197 bytes
   text    data     bss     dec     hex filename
 804232     610    6804  811646   c627e busybox_old
 804120     610    6804  811534   c620e busybox_unstripped
 2008-07-01 01:57:36 +00:00
Denis Vlasenko
960eca66b5 awk: actually do "svn add" for testsuite 2007-07-18 18:33:18 +00:00