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2021-10-06tls: P256: propagate constants, create dedicated "subtract p256_mod" functionDenys Vlasenko
8 instances of this subtraction probably warrant a few bytes more of code. function old new delta sp_256_sub_8_p256_mod - 71 +71 sp_256_mont_sub_8 - 29 +29 sp_256_mont_dbl_8 - 26 +26 sp_256_mont_reduce_8 262 257 -5 sp_256_ecc_mulmod_8 1171 1161 -10 sp_256_proj_point_dbl_8 374 359 -15 static.sp_256_mont_sub_8 29 - -29 static.sp_256_mont_dbl_8 31 - -31 ------------------------------------------------------------------------------ (add/remove: 3/2 grow/shrink: 0/3 up/down: 126/-90) Total: 36 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06tls: optimize sp_256_mont_reduce_8 in P256Denys Vlasenko
The code size decrease is small, but we eliminate ALL multiplies! function old new delta sp_256_mont_reduce_8 268 262 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05tls: optimize sp_256_mul_8 in P256Denys Vlasenko
function old new delta sp_256_mont_mul_8 151 150 -1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05tls: replace "26-bit" P256 code with 32-bit one.Denys Vlasenko
function old new delta sp_256_ecc_mulmod_8 - 1171 +1171 sp_256_mod_mul_norm_8 - 834 +834 sp_256_proj_point_dbl_8 - 374 +374 sp_256_mont_reduce_8 - 268 +268 sp_256_mont_mul_8 - 151 +151 sp_256_sub_8 - 76 +76 sp_256_add_8 - 76 +76 sp_256_cmp_8 - 38 +38 static.sp_256_mont_dbl_8 - 31 +31 static.sp_256_mont_sub_8 - 29 +29 sp_256_to_bin_8 - 28 +28 sp_256_point_from_bin2x32 50 73 +23 sp_256_mont_sqr_8 - 7 +7 sp_256_mont_sqr_10 7 - -7 p256_mod 40 32 -8 curve_P256_compute_pubkey_and_premaster 186 167 -19 sp_256_sub_10 22 - -22 sp_256_add_10 22 - -22 sp_256_cmp_10 24 - -24 sp_256_norm_10 31 - -31 static.sp_256_mont_sub_10 49 - -49 static.sp_256_mont_dbl_10 52 - -52 static.sp_256_mul_add_10 82 - -82 sp_256_from_bin_10 119 - -119 sp_256_to_bin_10 120 - -120 sp_256_mont_reduce_10 178 - -178 sp_256_mont_mul_10 214 - -214 sp_256_proj_point_dbl_10 451 - -451 sp_256_ecc_mulmod_10 1216 - -1216 sp_256_mod_mul_norm_10 1305 - -1305 ------------------------------------------------------------------------------ (add/remove: 12/15 grow/shrink: 1/2 up/down: 3106/-3919) Total: -813 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05tls: fix the case of sp_256_mont_tpl_10() leaving striay high bitsDenys Vlasenko
It has no effect on correctness, but interferes with compating internal state of different implementations. function old new delta sp_256_proj_point_dbl_10 443 451 +8 static.sp_256_mont_sub_10 46 49 +3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 11/0) Total: 11 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05tls: fix (what looks like) a rare corner case bug in P256Denys Vlasenko
function old new delta static.sp_256_mont_sub_10 30 46 +16 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05tls: remove one overzealous debugging statementDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05tls: add debugging scaffolding to P256 codeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05tls: another P256 code shrinkDenys Vlasenko
Propagate constant arrays and scalars deeper down call chain. Use sp_256_mont_mul_10 to implement sp_256_mont_sqr_10. function old new delta sp_256_mont_mul_10 - 214 +214 sp_256_mont_reduce_10 - 178 +178 sp_256_mont_sqr_10 - 7 +7 static.sp_256_mont_reduce_10 178 - -178 static.sp_256_mont_mul_10 214 - -214 static.sp_256_mont_sqr_10 234 - -234 ------------------------------------------------------------------------------ (add/remove: 3/3 grow/shrink: 0/0 up/down: 399/-626) Total: -227 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-05tls: P256 code shrinkDenys Vlasenko
function old new delta sp_256_to_bin_10 - 120 +120 sp_256_from_bin_10 - 119 +119 sp_256_proj_point_dbl_10 446 443 -3 curve_P256_compute_pubkey_and_premaster 191 186 -5 sp_256_point_from_bin2x32 62 50 -12 sp_256_to_bin 120 - -120 static.sp_256_from_bin 149 - -149 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 0/3 up/down: 239/-289) Total: -50 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-01tls: "server cert is not RSA" is a fatal errorDenys Vlasenko
function old new delta tls_handshake 2022 2019 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-01wget: implement --post-fileRon Yorston
Add the --post-file option to send form data from a file. As with --post-data it's up to the user to ensure that the data is encoded as appropriate: all wget does is stuff the provided data into the request. The --post-data and --post-file options are mutually exclusive and only one instance of either may be given. Additionally: - update the usage message to include missing details of the --post-data and --header options; - free POST data if FEATURE_CLEAN_UP is enabled. function old new delta packed_usage 34158 34214 +56 wget_main 2762 2805 +43 .rodata 99225 99240 +15 static.wget_longopts 266 278 +12 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/0 up/down: 126/0) Total: 126 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-01tls: add scaffolding to selectively disable ciphers. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-01tls: code shrink P256 codeDenys Vlasenko
function old new delta sp_256_to_bin 148 120 -28 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-30tls: remove unused defineDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-28less: Ignore -XIsmael Luceno
The flag disables termcap init/deinit of the terminal, which the applet doesn't do anyway. Signed-off-by: Ismael Luceno <ismael@iodev.co.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-28ash: fix compile breakage in !ENABLE_ASH_ALIAS configDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-28libbb: code shrink in main() and scripted_main()Denys Vlasenko
function old new delta main 68 65 -3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3) Total: -3 bytes text data bss dec hex filename 1472 560 16 2048 800 busybox_old 1398 552 16 1966 7ae busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-26shell: fix parsing of $(( (v)++ + NUM ))Denys Vlasenko
function old new delta evaluate_string 988 1011 +23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-25shell: enable more tests which are passing nowDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-25shell: fix arithmentic evaluation of "++7" and such (it is + + 7, i.e. 7)Denys Vlasenko
function old new delta evaluate_string 945 988 +43 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-25libbb/lineedit: tweak #if indenting, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-21cal: implement -mRon Yorston
Some people prefer the week to start on Monday. Add the '-m' option to support this. function old new delta cal_main 926 966 +40 day_array 316 337 +21 packed_usage 34151 34158 +7 .rodata 99224 99225 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/0 up/down: 69/0) Total: 69 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-18libbb: code shrink parse_datestr (again)Ron Yorston
Commit 9fe1548bb (date,touch: allow timezone offsets in dates) mentioned the similarity between '@' format dates and those with timezone offsets. It didn't notice that as a result there's common code which can be shared. function old new delta parse_datestr 730 687 -43 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-43) Total: -43 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17libbb/lineedit: do not escape %^=+}]:, escape ~? in tab completionDenys Vlasenko
function old new delta .rodata 104185 104180 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17libbb: clarify what bb_mode_string() generatesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17libbb: ensure mode_string is NUL terminatedRon Yorston
If the mode_string array is no longer static we can't rely on it being NUL terminated. function old new delta bb_mode_string 115 118 +3 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17libbb: eliminate a static data array in bb_mode_string()Denys Vlasenko
function old new delta print_stat 861 869 +8 header_verbose_list_ar 73 77 +4 display_single 975 979 +4 header_verbose_list 237 239 +2 bb_mode_string 124 115 -9 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/1 up/down: 18/-9) Total: 9 bytes text data bss dec hex filename 1043136 559 5052 1048747 1000ab busybox_old 1043153 559 5020 1048732 10009c busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17libbb: code shrink bb_parse_modeDenys Vlasenko
function old new delta bb_parse_mode 393 398 +5 static.who_mask 16 8 -8 static.perm_mask 24 12 -12 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 5/-20) Total: -15 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17chmod: correctly report changed modesDenys Vlasenko
Chmod used to incorrectly report as changed even files for which the mode did not change. This was caused by extra bits in the st_mode, that were not present when parsed from passed argument in the form of octal number. Patch by Wolf <wolf@wolfsden.cz>. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17date,touch: allow timezone offsets in datesRon Yorston
Allow ISO 8601 style dates to include a timezone offset. Like the '@' format these dates aren't relative to the user's current timezone and shouldn't be subject to DST adjustment. - The implementation uses the strptime() '%z' format specifier. This an extension which may not be available so the use of timezones is a configuration option. - The 'touch' applet has been updated to respect whether DST adjustment is required, matching 'date'. function old new delta parse_datestr 624 730 +106 static.fmt_str 106 136 +30 touch_main 388 392 +4 date_main 818 819 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/0 up/down: 141/0) Total: 141 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-16getopt: code shrinkRon Yorston
function old new delta .rodata 99277 99290 +13 normalize 177 142 -35 getopt_main 675 622 -53 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 13/-88) Total: -75 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-15ash: introduce bash-like $FUNCNAMEDenys Vlasenko
Patch adapted from Roberto A. Foglietta <roberto.foglietta@gmail.com> work. function old new delta lookupvar 106 150 +44 evalfun 369 408 +39 ash_main 1218 1242 +24 varinit_data 156 168 +12 .rodata 104162 104172 +10 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/0 up/down: 129/0) Total: 129 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-15libbb: code shrink parse_datestrRon Yorston
The default build uses strptime() in parse_datestr() to support the 'month_name d HH:MM:SS YYYY' format of GNU date. If we've linked with strptime() there's an advantage is using it for other formats too. There's no change to the non-default, non-DESKTOP build. function old new delta fmt_str - 106 +106 .rodata 99216 99145 -71 parse_datestr 948 624 -324 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 106/-395) Total: -289 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-14ash: let ignoreeof only affect interactive shellsRon Yorston
Commit fb7d6c89 from Harald van Dijk's gwsh variant of ash (https://github.com/hvdijk/gwsh): ignoreeof is documented as only having an effect for interactive shells, but is implemented as having mostly the same effect for interactive shells as for non-interactive shells. Change the implementation to match the documentation. Test case: $SHELL -o ignoreeof /dev/null function old new delta cmdloop 359 361 +2 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/0 up/down: 2/0) Total: 2 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-14ash: stopped jobs should only prevent exit from interactive shellRon Yorston
When the user tries to exit an interactive shell with stopped jobs present the shell issues a warning and only exits if the user insists by trying to exit again. This shouldn't apply to non-interactive shells. Reported-by: Roberto A. Foglietta <roberto.foglietta@gmail.com> Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-14ash: fix ignoreeof optionRon Yorston
The ignoreeof option should prevent an interactive shell from exiting on EOF. This hasn't worked in BusyBox ash since commit 727752d2d (ash: better fix for ash -c 'echo 5&' and ash -c 'sleep 5&' with testcase). Commit 3b4d04b77e (ash: input: Allow two consecutive calls to pungetc) pulled in improved support for multiple calls to pungetc from dash, thus rendering much of commit 727752d2d obsolete. Removing this old code fixes the problem with ignoreeof. function old new delta __pgetc 605 587 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-18) Total: -18 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-11df: "support" -H as an alias of -hDenys Vlasenko
function old new delta df_main 1065 1068 +3 .rodata 104232 104233 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 4/0) Total: 4 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-10httpd: fix config depsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-10libbb: reuse "bad port" error message stringDenys Vlasenko
function old new delta .rodata 104251 104232 -19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-10blkdiscard: accept -f (force) as no-opDenys Vlasenko
function old new delta .rodata 104250 104251 +1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-09basename: implement -a and -s SUFFIXDenys Vlasenko
function old new delta basename_main 145 207 +62 packed_usage 33914 33950 +36 .rodata 104241 104250 +9 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 107/0) Total: 107 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-09libbb: make bb_lookup_port() abort on bad port namesDenys Vlasenko
Also, no need to preserve errno function old new delta .rodata 104247 104241 -6 bb_lookup_port 97 83 -14 nc_main 1039 1018 -21 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-41) Total: -41 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-09httpd,telnetd: make default port configurableSergey Ponomarev
BusyBox on Termux can't use ports less than 1024 it's patched to change default port for httpd to 8080 and telnetd to 8023. https://github.com/termux/termux-packages/blob/master/packages/busybox/0011-networking-telnetd-default-port.patch https://github.com/termux/termux-packages/blob/master/packages/busybox/0010-networking-httpd-default-port.patch To avoid such patches we can make port configurable. function old new delta packed_usage 33920 33914 -6 Signed-off-by: Sergey Ponomarev <stokito@gmail.com> 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>
2021-09-09ash: eval: Prevent recursive PS4 expansionDenys Vlasenko
Date: Wed, 27 May 2020 13:19:10 +1000 eval: Prevent recursive PS4 expansion Yaroslav Halchenko <yoh@onerussian.com> wrote: > I like to (ab)use PS4 and set -x for tracing execution of scripts. > Reporting time and PID is very useful in this context. > > I am not 100% certain if bash's behavior (of actually running the command > embedded within PS4 string, probably eval'ing it) is actually POSIX > compliant, posh seems to not do that; but I think it is definitely not > desired for dash to just stall: > > - the script: > #!/bin/sh > set -x > export PS4='+ $(date +%T.%N) [$$] ' > echo "lets go" > sleep 1 > echo "done $var" > > - bash: > /tmp > bash --posix test.sh > +export 'PS4=+ $(date +%T.%N) [$$] ' > +PS4='+ $(date +%T.%N) [$$] ' > + 09:15:48.982296333 [2764323] echo 'lets go' > lets go > + 09:15:48.987829613 [2764323] sleep 1 > + 09:15:49.994485037 [2764323] echo 'done ' > done > ... > - dash: (stalls it set -x) > /tmp > dash test.sh > +export PS4=+ $(date +%T.%N) [$$] > ^C^C This patch fixes the infinite loop caused by repeated expansions of PS4. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-08ash: parser: Get rid of PEOADenys Vlasenko
Upstream commit: Date: Wed, 27 May 2020 12:19:13 +1000 parser: Get rid of PEOA PEOA is a special character used to mark an alias as being finished so that we don't enter an infinite loop with nested aliases. It complicates the parser because we have to ensure that it is skipped where necessary and not copied to the resulting token text. This patch removes it and instead delays the marking of aliases until the second pgetc. This has the same effect as the current PEOA code while keeping the complexities within the input code. This adds ~32 bytes of global data: function old new delta __pgetc - 512 +512 freestrings - 95 +95 popfile 86 110 +24 pushstring 141 160 +19 basepf 76 84 +8 syntax_index_table 258 257 -1 S_I_T 30 28 -2 .rodata 104255 104247 -8 pgetc_without_PEOA 13 - -13 xxreadtoken 230 215 -15 popstring 158 120 -38 readtoken1 3110 3045 -65 pgetc 547 22 -525 ------------------------------------------------------------------------------ (add/remove: 2/1 grow/shrink: 3/7 up/down: 658/-667) Total: -9 bytes text data bss dec hex filename 1043102 559 5020 1048681 100069 busybox_old 1043085 559 5052 1048696 100078 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.1 at 2024-11-05 05:29:25 +0000