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2022-07-11awk: fix use after free (CVE-2022-30065)Natanael Copa
fixes https://bugs.busybox.net/show_bug.cgi?id=14781 function old new delta evaluate 3343 3357 +14 Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-08awk: input numbers are never octal or hex (only program consts can be)Denys Vlasenko
function old new delta next_token 825 930 +105 getvar_i 114 129 +15 nextchar 49 53 +4 my_strtod 138 - -138 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 3/0 up/down: 124/-138) Total: -14 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-05awk: fix printf %%Daniel Thau
A refactor of the awk printf code in e2e3802987266c98df0efdf40ad5da4b07df0113 appears to have broken the printf interpretation of two percent signs, which normally outputs only one percent sign. The patch below brings busybox awk printf behavior back into alignment with the pre-e2e380 behavior, the busybox printf util, and other common (awk and non-awk) printf implementations. function old new delta awk_printf 626 672 +46 Signed-off-by: Daniel Thau <danthau at bedrocklinux.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-08-16awk: fix testsuiteDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-14awk: disallow break/continue outside of loopsDenys Vlasenko
function old new delta .rodata 104139 104186 +47 chain_group 610 633 +23 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 70/0) Total: 70 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-12awk: fix printf "%-10c", 0Denys Vlasenko
function old new delta awk_printf 596 626 +30 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-11awk: unbreak "cmd" | getlineDenys Vlasenko
function old new delta evaluate 3337 3343 +6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-11awk: undo TI_PRINT, it introduced a bug (print with any redirect acting as ↵Denys Vlasenko
printf) function old new delta evaluate 3329 3337 +8 Patch by Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-02awk: fix beavior of "exit" without parameterDenys Vlasenko
function old new delta evaluate 3336 3339 +3 awk_exit 93 94 +1 awk_main 829 827 -2 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 4/-2) Total: 2 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-30awk: evaluate all, even superfluous function argsDenys Vlasenko
function old new delta evaluate 3128 3135 +7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-30awk: allow empty fuinctions with no arguments, disallow function redefinitionsDenys Vlasenko
function old new delta .rodata 103681 103700 +19 parse_program 303 307 +4 evaluate 3145 3141 -4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 23/-4) Total: 19 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-29awk: fix parsing of expressions such as "v (a)"Denys Vlasenko
function old new delta next_token 812 825 +13 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-02-02awk: allow printf('%c') to output NUL, closes 13486Ron Yorston
Treat the output of printf as binary rather than a null-terminated string so that NUL characters can be output. This is considered to be a GNU extension, though it's also available in mawk and FreeBSD's awk. function old new delta evaluate 3487 3504 +17 awk_printf 504 519 +15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 32/0) Total: 32 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-04awk: add a test that $NF is emptyDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-02awk: FS regex matches only non-empty separators (gawk compat)Denys Vlasenko
function old new delta awk_split 484 553 +69 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-06-09awk: disallow "str"++, closes bug 12981Denys Vlasenko
function old new delta parse_expr 887 896 +9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-02-02awk: fix more "length" cases, closes 12486Denys Vlasenko
function old new delta next_token 808 831 +23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-06-08awk: fix testsuiteDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-21awk: Fix overly permissive func arg list parsingBrian Foley
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>
2019-01-21awk: Syntax error if delete isn't given an arg.Brian Foley
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>
2019-01-21awk: Guard pointer chasing when parsing ternary expressions.Brian Foley
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>
2018-04-23awk: do not allow $(-1)Denys Vlasenko
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>
2018-01-07awk: fix 'delete array[var--]' decrementing var twiceDenys Vlasenko
function old new delta evaluate 3395 3390 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-10-24awk: fix segfault on for loop syntax errorBrian Foley
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>
2015-10-02awk: support "length" form of "length()". Closes 8371Denys Vlasenko
function old new delta parse_expr 805 848 +43 tokenlist 447 448 +1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-26awk: fix handling of "if ... break ; else ..." - closes 7226Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-12-31fix failures found by randomconfig buildsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-21awk: fix a bug in argc counting in recent changeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-10-12awk: fix length(array)Denys Vlasenko
function old new delta evaluate 3526 3548 +22 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-07-31awk: Fix handling of functions with empty bodyBernhard Reutner-Fischer
ammend b79a0fef99627c457548e804fcd6e162b116cbe8 to properly handle functions defined in another scope. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-22awk.tests: add test for recent large integer fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-13awk: Fix handling of functions with empty bodyBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-07-11awk: fix FS assignment behavior. Closes 5108Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-06-22awk: make -F STR interpret escape sequences. Closes 5126Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-06-11testsuite: some more awk tests related to conditionsTanguy Pruvot
Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-11awk: fix a SEGVDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-23awk: fix segfault on closing non-opened fileDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-05awk: 00.123 is not a octal constant; neither is 009.123. fixing thisDenys Vlasenko
function old new delta my_strtod 80 113 +33 Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-08-16*: make GNU licensing statement forms more regularDenys Vlasenko
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>
2010-05-11randomtest fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-05-10more randomconfig testsuite fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-05-10randomconfig testsuite fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-03-11awk: add two tests we currently failDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-03-10awk: fix the case where nested "for" loops with the same variable misbehaveDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-02-26awk: skip whitespace between array name and subscriptAlexander Shishkin
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>
2009-11-30awk: fix an incorrect casting to string (bug 725). -44 bytes.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-04tests: fix POSIX shell source styleMike Frysinger
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>
2009-04-12awk: fix long field separators case. By Ian Wienand (ianw AT vmware.com)Denis Vlasenko
2009-03-15awk: fix compat issue found by gpm buildDenis Vlasenko
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
2009-01-25awk: in BEGIN section $0 should be "", not "0".Denis Vlasenko
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