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2022-08-30fix [ --help ] and [[ --help ]]Denys Vlasenko
function old new delta show_usage_if_dash_dash_help 72 79 +7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-30*: style fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-27ash: optional sleep builtinShawn Landden
function old new delta sleepcmd - 10 +10 builtintab 352 360 +8 .rodata 105264 105271 +7 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/0 up/down: 25/0) Total: 25 bytes Signed-off-by: Shawn Landden <shawnlandden@tutanota.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-26devmem: add 128-bit widthAaro Koskinen
Add 128-bit width if the compiler provides the needed type. function old new delta devmem_main 405 464 +59 .rodata 109025 109043 +18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 77/0) Total: 77 bytes Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-26tree: unicode tweak (use normal space char, 0x20)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-26tree: make it unicode-awareDenys Vlasenko
function old new delta tree_print 396 420 +24 .rodata 105251 105266 +15 tree_main 86 91 +5 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 44/0) Total: 44 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-22xxd -r: handle offsetsDenys Vlasenko
function old new delta xxd_main 1076 1439 +363 .rodata 105239 105251 +12 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 375/0) Total: 375 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-22xxd: add two more testcasesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-22xxd -r: without -p, stop at more than one whitespace, closes 14786Denys Vlasenko
function old new delta xxd_main 888 1076 +188 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-22libbb: make '--help' handling more consistentRon Yorston
Running an applet with '--help' as its only argument is treated as a special case. If additional arguments follow '--help' the behaviour is inconsistent: - applets which call single_argv() print help and do nothing else; - applets which call getopt() report "unrecognized option '--help'" and print help anyway; - expr says "expr: syntax error" and doesn't print help; - printenv silently ignores '--help', prints any other variables and doesn't print help; - realpath says "--help: No such file or directory", prints the path of any other files and doesn't print help. If the first argument is '--help' ignore any other arguments and print help. This is more consistent and most likely what the user wanted. See also commit 6bdfbc4cb (libbb: fix '--help' handling in FEATURE_SH_NOFORK=y). function old new delta show_usage_if_dash_dash_help 75 69 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-6) Total: -6 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-18bc: hopefully fix bug 14956 (use-after-free)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-02ash: fix use-after-free in bash pattern substitutionSören Tempel
function old new delta subevalvar 1566 1564 -2 Signed-off-by: Sören Tempel <soeren@soeren-tempel.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-02udhcpc6: downgrade "opening listen socket" log level to 2Denys Vlasenko
This matches udhcpc for IPv4. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-02udhcpc6: fix sending of renew messagesDenys Vlasenko
function old new delta d6_listen_socket - 150 +150 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-02vi: add 'ZQ' quitting commandGrob Grobmann
Busybox vi provides the 'ZZ' command to save and close the similar 'ZQ' command just exits without saving. function old new delta do_cmd 4222 4244 +22 Signed-off-by: Grob Grobmann <grobgrobmann@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-02ping: fix typo in --help textHenrique Rodrigues
Signed-off-by: Henrique Rodrigues <henrique.rodrigues@ist.utl.pt> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-02ash: fix use-after-free in pattern substituon codeDenys Vlasenko
Patch by soeren@soeren-tempel.net The idx variable points to a value in the stack string (as managed by STPUTC). STPUTC may resize this stack string via realloc(3). If this happens, the idx pointer needs to be updated. Otherwise, dereferencing idx may result in a use-after free. function old new delta subevalvar 1562 1566 +4 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-08-02ash: fix ifs cleanup on error pathsDenys Vlasenko
Patch by Alex Gorinson <algore3698@gmail.com> function old new delta evalvar 477 495 +18 varvalue 603 618 +15 subevalvar 1557 1572 +15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 48/0) Total: 48 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-07-29sort: fix sort -s -u, closes 14871Denys Vlasenko
function old new delta sort_main 851 856 +5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-07-29sort: fix -k2M (wasn't skipping leading whitespace)Denys Vlasenko
function old new delta compare_keys 848 862 +14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-07-13udhcpc6: add missed big-endian conversionsDenys Vlasenko
function old new delta option_to_env 686 694 +8 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-07-13tls: P256: remove NOP macro sp_256_norm_8()Denys 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>
2022-07-11shaNNNsum: accept one-space "HASH FILENAME" format for -c, closes 14866Denys Vlasenko
function old new delta md5_sha1_sum_main 496 501 +5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-07-03lineedit: get PWD from ashRon Yorston
The line editing code and ash disagree when the current directory is changed to a symbolic link: ~ $ mkdir real ~ $ ln -s real link ~ $ cd link ~/real $ pwd /home/rmyf36/link Note the prompt says we're in ~/real. Bash does: [rmy@random ~]$ cd link [rmy@random link]$ pwd /home/rmyf36/link Ash uses the name supplied by the user while the line editing code calls getcwd(3). The discrepancy can be avoided by fetching the value of PWD from ash. Hush calls getcwd(3) when the directory is changed so there's no disagreement with the line editing code. There is no standard how shells should handle cd'ing into symlinks. function old new delta parse_and_put_prompt 838 869 +31 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-06-30tree: new appletRoger Knecht
Adds the tree program to list directories and files in a tree structure. function old new delta tree_print - 343 +343 scandir64 - 330 +330 scandir - 330 +330 tree_main - 86 +86 .rodata 105150 105228 +78 packed_usage 34511 34557 +46 alphasort64 - 31 +31 alphasort - 31 +31 strcoll - 5 +5 applet_names 2801 2806 +5 applet_main 1616 1620 +4 applet_suid 101 102 +1 applet_install_loc 202 203 +1 ------------------------------------------------------------------------------ (add/remove: 11/0 grow/shrink: 6/0 up/down: 1291/0) Total: 1291 bytes Signed-off-by: Roger Knecht <rknecht@pm.me> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-06-26vi: handle autoindent in 'cc' commandRon Yorston
When the 'cc' command is invoked with autoindent enabled it should use the indent of the first line being changed. The size of the indent has to be established before char_insert() is called as the lines being changed are deleted. Introduce a new global variable, newindent, to handle this. The indentcol global is now effectively a static variable in char_insert(). function old new delta do_cmd 4247 4308 +61 vi_main 416 422 +6 char_insert 891 875 -16 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 67/-16) Total: 51 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-06-26vi: fix regression in autoindent handlingRon Yorston
Suppose autoindent is enabled and we have a line with an initial tab where we want to split the words onto separate lines: split the words One way to do this is with the sequence 'f r<CR>;r<CR>', but in BusyBox vi the result is: split he words This is a regression introduced by commit 9659a8db1 (vi: remove autoindent from otherwise empty lines). The amount of indentation is being recorded when the 'r' command inserts a newline but isn't subsequently reset. A fix is to only record the indent when in insert or replace mode. Proper handling of the 'o' and 'O' commands then requires them to switch to insert mode before calling char_insert() to insert a newline. function old new delta char_insert 884 891 +7 do_cmd 4243 4247 +4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 11/0) Total: 11 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-06-26ash,hush: use HOME for tab completion and promptsRon Yorston
ash and hush correctly use the value of HOME for tilde expansion. However the line editing code in libbb obtains the user's home directory by calling getpwuid(). Thus tildes in tab completion and prompts may be interpreted differently than in tilde expansion. When the line editing code is invoked from a shell make it use the shell's interpretation of tilde. This is similar to how GNU readline and bash collaborate. function old new delta get_homedir_or_NULL 29 72 +43 optschanged 119 126 +7 hush_main 1204 1211 +7 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 57/0) Total: 57 bytes v2: Always check for HOME before trying the password database: this is what GNU readline does. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-06-26libbb: restore special handling of nomsg errorsRon Yorston
The functions bb_perror_nomsg() and bb_perror_nomsg_and_die() are used to print error messages where no specific information is available. For example: $ busybox mktemp -p / mktemp: (null): Permission denied mktemp(3) doesn't tell us the name of the file it tried to create. However, printing '(null)' is a regression introduced by commit 6937487be (libbb: reduce the overhead of single parameter bb_error_msg() calls). Restore the previous behaviour by reverting the changes to the two functions mentioned: $ busybox mktemp -p / mktemp: Permission denied function old new delta bb_perror_nomsg_and_die 7 14 +7 bb_perror_nomsg 7 14 +7 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 14/0) Total: 14 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-12top: improve large PID display in memory ('s') modeDenys Vlasenko
function old new delta display_topmem_process_list 530 564 +34 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-12examples/var_service/dhcp_if: make helper scripts more talkativeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-10top: code shrinkDenys Vlasenko
function old new delta display_process_list 1186 1168 -18 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-10top: code shrinkDenys Vlasenko
function old new delta display_process_list 1191 1186 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-10top: fix display of large PID/PPIDDenys Vlasenko
function old new delta display_process_list 1077 1191 +114 .rodata 104803 104807 +4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 118/0) Total: 118 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-03seedrng: do not hash in a constant string, it's not adding entropyDenys Vlasenko
function old new delta seedrng_main 906 880 -26 .rodata 104899 104873 -26 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-52) Total: -52 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-02seedrng: restore error check on fsyncDenys Vlasenko
Or else security people will never stop nagging us. function old new delta seedrng_main 884 906 +22 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-02seedrng: it's not a part of util-linux, move to miscutilsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-02init: do not set HOMEDenys Vlasenko
function old new delta .rodata 104906 104899 -7 init_main 786 776 -10 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-17) Total: -17 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-02tsort: new appletDavid Leonard
function old new delta tsort_main - 578 +578 .rodata 104884 104906 +22 applet_names 2759 2765 +6 applet_main 1596 1600 +4 packed_usage 34290 34288 -2 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 3/1 up/down: 610/-2) Total: 608 bytes Signed-off-by: David Leonard <d+busybox@adaptive-enterprises.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-02crond: implement support for setting PATH in crontab filesPaul Fox
It's very inconvenient for a cron user not to be able to set a "personal" PATH for their cron jobs, as is possible with other crons function old new delta load_crontab 868 942 +74 .rodata 104878 104884 +6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 80/0) Total: 80 bytes Signed-off-by: Paul Fox <pgf@foxharp.boston.ma.us> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-01style fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-01seedrng: manually inline seed_rngBernhard Reutner-Fischer
We can now remove a separate buffer function old new delta seedrng_main 930 884 -46 Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-01seedrng: shorten --help, assorted small cleanupsDenys Vlasenko
function old new delta packed_usage 34295 34290 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-01seedrng: reduce MAX_SEED_LEN from 512 to 256Denys Vlasenko
As proposed by Jason. getrandom() is more likely to block on reads larger than this. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-01seedrng: do not hash lengths, they are very predictableDenys Vlasenko
function old new delta seedrng_main 982 930 -52 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-01seedrng: code shrinkDenys Vlasenko
function old new delta seedrng_main 994 982 -12 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-05-01seedrng: explain why we need locking and fsync'ingDenys Vlasenko
Also, do not test for locking errors: on Linux, they do not happen. function old new delta .rodata 104900 104878 -22 seedrng_main 1022 994 -28 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-04-30seedrng: remove redundant assignmentDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-04-30seedrng: re-add fsync after unlink, and explain its purposeDenys Vlasenko
function old new delta seedrng_main 1003 1022 +19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>