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path: root/editors/awk.c
AgeCommit message (Collapse)Author
2023-10-02awk: implement -E; do not reorder -f and -eDenys Vlasenko
function old new delta awk_main 843 891 +48 next_input_file 243 261 +18 packed_usage 34631 34638 +7 .rodata 105391 105390 -1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 73/-1) Total: 72 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-07-10Update applet size estimatesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-08awk: fix subst code to handle "start of word" pattern correctly (needs ↵Denys Vlasenko
REG_STARTEND) function old new delta awk_sub 637 714 +77 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-07awk: fix SEGV on read error in -f PROGFILEDenys Vlasenko
function old new delta awk_main 829 843 +14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-06awk: code shrinkDenys Vlasenko
function old new delta awk_sub 544 548 +4 exec_builtin 1136 1130 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 4/-6) Total: -2 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-03awk: fix backslash handling in sub() builtinsDenys Vlasenko
function old new delta awk_sub 559 544 -15 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-30awk: fix precedence of = relative to ==Denys Vlasenko
Discovered while adding code to disallow assignments to non-lvalues function old new delta parse_expr 936 991 +55 .rodata 105243 105247 +4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 59/0) Total: 59 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-29awk: printf(INVALID_FMT) prints it verbatimDenys Vlasenko
function old new delta awk_printf 628 640 +12 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-28awk: shrink - use setvar_sn() to set variables from non-NUL terminated stringsDenys Vlasenko
function old new delta setvar_sn - 39 +39 exec_builtin 1145 1136 -9 awk_getline 591 559 -32 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 39/-41) Total: -2 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-28awk: code shrinkDenys Vlasenko
function old new delta awk_getline 620 591 -29 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-28awk: fix closing of non-opened fileDenys Vlasenko
function old new delta setvar_ERRNO - 53 +53 .rodata 105252 105246 -6 awk_getline 639 620 -19 evaluate 3402 3377 -25 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/3 up/down: 53/-50) Total: 3 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27awk: do not read ARGIND, only set it (gawk compat)Denys Vlasenko
function old new delta next_input_file 216 243 +27 evaluate 3396 3402 +6 awk_main 826 829 +3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 36/0) Total: 36 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27awk: remove a local variable "caching" a struct memberDenys Vlasenko
Since we take its address, the variable lives on stack (not a GPR). Thus, nothing is improved by caching it. function old new delta awk_getline 642 639 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27awk: get rid of one indirection level for iF (input file structure)Denys Vlasenko
function old new delta try_to_assign - 91 +91 next_input_file 214 216 +2 awk_main 827 826 -1 evaluate 3403 3396 -7 is_assignment 91 - -91 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/2 up/down: 93/-99) Total: -6 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27awk: fix splitting with default FSDenys Vlasenko
function old new delta awk_split 543 544 +1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26awk: fix use-after-realloc (CVE-2021-42380), closes 15601Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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>
2021-09-09awk: never return NULL from awk_printf()Denys Vlasenko
function old new delta awk_printf 651 628 -23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-09awk: code shrinkDenys Vlasenko
function old new delta awk_printf 652 651 -1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-09awk: code shrink: avoid duplicate NUL checks and strlen()Denys Vlasenko
function old new delta awk_printf 665 652 -13 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-09awk: fix read beyond end of bufferRon Yorston
Commit 7d06d6e18 (awk: fix printf %%) can cause awk printf to read beyond the end of a strduped buffer: 2349 while (*f && *f != '%') 2350 f++; 2351 c = *++f; If the loop terminates because a NUL character is detected the character after the NUL is read. This can result in failures depending on the value of that character. function old new delta awk_printf 672 665 -7 Signed-off-by: Ron Yorston <rmy@pobox.com> 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>
2021-07-14awk: whitespace and debugging tweaksDenys 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>
2021-07-14awk: tighten parsing - disallow extra semicolonsDenys Vlasenko
'; BEGIN {...}' and 'BEGIN {...} ;; {...}' are not accepted by gawk function old new delta parse_program 332 353 +21 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-12awk: in parsing, remove superfluous NEWLINE check; optimize builtin arg ↵Denys Vlasenko
evaluation function old new delta exec_builtin 1149 1145 -4 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: fix corner case in awk_printfDenys Vlasenko
Example where it wasn't working: awk 'BEGIN { printf "qwe %s rty %c uio\n", "a", 0, "c" }' - the NUL printing in %c caused premature stop of printing. function old new delta awk_printf 593 596 +3 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: unbreak "printf('%c') can output NUL" testcaseDenys Vlasenko
function old new delta awk_printf 546 593 +47 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>
2021-07-11awk: rollback_token() + chain_group() == chain_until_rbrace()Denys Vlasenko
function old new delta parse_program 336 332 -4 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-04awk: fix printf buffer overflowDenys Vlasenko
function old new delta awk_printf 468 546 +78 fmt_num 239 247 +8 getvar_s 125 111 -14 evaluate 3343 3329 -14 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/2 up/down: 86/-28) Total: 58 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: simplify tests for operation classDenys Vlasenko
Usually, an operation class has only one possible value of "info" word. In this case, just compare the entire info word, do not bother to mask OPCLSMASK bits. (Example where this is not the case: OC_REPLACE for "<op>=") function old new delta mk_splitter 106 100 -6 chain_group 616 610 -6 nextarg 40 32 -8 exec_builtin 1157 1149 -8 as_regex 111 103 -8 awk_split 553 543 -10 parse_expr 948 936 -12 awk_getline 656 642 -14 evaluate 3387 3343 -44 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/9 up/down: 0/-116) Total: -116 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: restore strdup elision optimization in assignmentDenys Vlasenko
function old new delta evaluate 3339 3387 +48 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: match(): code shrinkDenys Vlasenko
function old new delta do_match - 165 +165 exec_builtin_match 202 - -202 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/0 up/down: 165/-202) Total: -37 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: rand(): 64-bit constants should be ULLDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: do not use a copy of g_progname for node->l.new_prognameDenys Vlasenko
We never destroy g_progname's, the strings still exist, no need to copy function old new delta chain_node 104 97 -7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: support %F %a %A in printfDenys Vlasenko
function old new delta .rodata 104111 104120 +9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: open-code TS_OPTERM, no logic changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: tighten rules in action parsingDenys Vlasenko
Disallow: BEGIN { action } - must start on the same line Disallow: func f() print "hello" - must be in {...} function old new delta chain_until_rbrace - 41 +41 parse_program 307 336 +29 chain_group 649 616 -33 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/1 up/down: 70/-33) Total: 37 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-03awk: rename GRPSTART/END to L/RBRACE, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-02awk: move match() code out-of-lineDenys Vlasenko
function old new delta exec_builtin_match - 202 +202 exec_builtin 1434 1157 -277 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/1 up/down: 202/-277) Total: -75 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-02awk: use smaller regmatch_t arrays, they had 2 elements for no apparent reasonDenys Vlasenko
function old new delta exec_builtin 1479 1434 -45 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-02awk: fix detection of VAR=VAL argumentsDenys Vlasenko
1NAME=VAL is not it, neither is VA.R=VAL function old new delta next_input_file 216 214 -2 is_assignment 115 91 -24 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-26) Total: -26 bytes 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>
2021-07-02awk: rand() could return 1.0, fix this - should be in [0,1)Denys Vlasenko
While at it, make it finer-grained (63 bits of randomness) function old new delta evaluate 3303 3336 +33 .rodata 104107 104111 +4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 37/0) Total: 37 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-02awk: beautify builtins table, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-02awk: enforce simple builtins' argument numberDenys Vlasenko
function old new delta evaluate 3215 3303 +88 .rodata 104036 104107 +71 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 159/0) Total: 159 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.1 at 2025-03-22 04:00:36 +0000