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path: root/shell/hush.c
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2009-10-18hush: handle empty execsMike Frysinger
Sometimes variable expansions yield empty strings, and if they happen to be a command someone wants to run like `$foo`, then hush currently segfaults. So handle `` and $(). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-15hush: add a printf builtinMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-15hush: unify handling of builtin appletsMike Frysinger
Saves about 10 bytes for each additional builtin applet. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-12ash,hush: fix $RANDOM in children being repeatedDenys Vlasenko
function old new delta next_random 46 68 +22 forkshell 248 263 +15 expand_vars_to_list 2118 2131 +13 run_pipe 1775 1782 +7 popstring 134 140 +6 builtin_umask 123 121 -2 ash_main 1356 1336 -20 get_local_var_value 125 104 -21 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/3 up/down: 63/-43) Total: 20 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-11hush: shrink $RANDOM supportDenys Vlasenko
function old new delta get_local_var_value 104 125 +21 hush_main 1024 983 -41 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-09hush: fix cut-n-paste error in last commitDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-09hush: add support for $RANDOM. If on:Denys Vlasenko
function old new delta hush_main 983 1024 +41 get_local_var_value 72 104 +32 block_signals 155 161 +6 reset_traps_to_defaults 211 214 +3 builtin_wait 268 271 +3 pseudo_exec_argv 198 200 +2 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 6/0 up/down: 87/0) Total: 87 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-09hush: support $PPIDDenys Vlasenko
function old new delta get_local_var_value 33 72 +39 hush_main 951 983 +32 block_signals 152 155 +3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 74/0) Total: 74 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-08*: code shrink via NOINLINEDenys Vlasenko
function old new delta expand_vars_to_list - 2118 +2118 lzo1x_optimize - 1429 +1429 run_pipe 358 1775 +1417 arith_apply - 1335 +1335 mainQSort3 - 1198 +1198 logdir_open - 1163 +1163 rewrite - 1039 +1039 dump_identity - 987 +987 do_shm - 884 +884 cpio_o - 863 +863 cpio_main 1450 560 -890 ipcs_main 3442 2523 -919 bb_dump_dump 2611 1488 -1123 process_dev 4572 3405 -1167 logdirs_reopen 1308 86 -1222 arith 2084 707 -1377 mainSort 2622 1202 -1420 do_lzo_compress 2276 799 -1477 run_list 2491 943 -1548 expand_variables 2280 135 -2145 ------------------------------------------------------------------------------ (add/remove: 9/0 grow/shrink: 1/10 up/down: 12433/-13288) Total: -855 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-29ash,hush: share stringDenys Vlasenko
function old new delta optschanged 133 139 +6 hush_main 997 982 -15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 6/-15) Total: -9 bytes text data bss dec hexfilename 823160 445 7668 831273 caf29busybox_old 823102 445 7668 831215 caeefbusybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-27ash,hush: make trap output short signal names, without SIG prefixDenys Vlasenko
function old new delta evalvar 1373 1371 -2 builtin_trap 457 441 -16 trapcmd 260 236 -24 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-25hush: do not reset to default "" traps in subshellDenys Vlasenko
function old new delta reset_traps_to_defaults 164 211 +47 builtin_umask 123 121 -2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-25hush: document a TODO. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-24hush: small speed optimization. +10 bytes.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-24ash,hush: fix trap reporting: s/SIGEXIT/EXIT/Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-23*: more portability fixes by Dan FandrichDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-23hush: fix `trap`Denys Vlasenko
function old new delta expand_variables 2217 2280 +63 static.argv - 8 +8 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-21hush: better wording in comments. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-12hush: make memleak debugging more robustDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-12hush: code shrink by Dan Fandrich (dan AT coneharvesters.com)Denys Vlasenko
function old new delta find_function_slot - 47 +47 run_list 2508 2491 -17 find_function 40 8 -32 builtin_unset 227 165 -62 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-06remove some GNUisms. by Dan Fandrich (dan AT coneharvesters.com)Denys Vlasenko
function old new delta logdirs_reopen 1310 1308 -2 read_line_input 4757 4753 -4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-6) Total: -6 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-05hush: export PWDDenys Vlasenko
function old new delta set_pwd_var - 36 +36 hush_main 941 951 +10 evalvar 1365 1363 -2 ash_main 1364 1362 -2 builtin_cd 75 72 -3 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/3 up/down: 46/-7) Total: 39 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-21msh: aliased to hushDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-20hush: enable "lash is deprecated, please use hush instead" messageDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-20hush: do not process options after non-option argsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-12hush: fix \<newline> handling on NOMMUDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-12hush tests: remove the requirement that .config is in ../..Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-15remove trailing whitespaceDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-14ash: fix . builtinDenys Vlasenko
Also, move [[ ]] comment to test.c and expand it Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-10added comments about [[ ]] to ash and hush. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-10hush: add HUSH_BASH_COMPAT, make [[ special handling depend on itDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-09hush: specially handle [[ - suppress globbing & multiword expansionDenys Vlasenko
It's a bashism, but is surprisingly easy to do and costs very little code. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-07hush: drop REDIRECT_INVALID; other minor tweaksDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-07hush: fix a segfault in export builtinDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-06hush: make builtins work in pipes (eval ... | ...) on NOMMUDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-05*: add FAST_FUNC to function ptrs where it makes senseDenys Vlasenko
function old new delta evalcommand 1195 1209 +14 testcmd - 10 +10 printfcmd - 10 +10 echocmd - 10 +10 func_exec 270 276 +6 echo_dg 104 109 +5 store_nlmsg 85 89 +4 pseudo_exec_argv 195 198 +3 dotcmd 287 290 +3 machtime_stream 29 31 +2 discard_stream 24 26 +2 argstr 1299 1301 +2 killcmd 108 109 +1 evalfor 226 227 +1 daytime_stream 43 44 +1 run_list 2544 2543 -1 lookupvar 62 61 -1 ipaddr_modify 1310 1309 -1 ... parse_stream 2254 2245 -9 evalpipe 356 347 -9 collect_if 210 197 -13 read_opt 869 851 -18 handle_dollar 681 658 -23 print_addrinfo 1342 1303 -39 iterate_on_dir 156 59 -97 print_route 1709 1609 -100 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 12/130 up/down: 74/-767) Total: -693 bytes text data bss dec hex filename 841748 467 7872 850087 cf8a7 busybox_old 841061 467 7872 849400 cf5f8 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-03hush: document a TODO in export builtinDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-03hush: fix a case when backgrounded cmd makes shell hangDenys Vlasenko
Signed-off-by: Bayram Kurumahmut <kbayram@ubicom.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-03hush: add support for local builtinDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-01hush: unify syntax_error_unterm_{ch,str} a bitMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-01hush: push down expansion var in handle_dollar()Mike Frysinger
Declare the variable in the scope it is used rather than the entire function scope so it's obvious it is only used there. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-01hush: add support for special vars in bracesMike Frysinger
Some people like to use ${?} rather than $?, so make sure we support all the special single char vars that use this form. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-01nc, hush: cosmetic cleanups, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-29read_key: drop optimization where we read 3 bytes at onceDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-28hust: trivial simplification in builtin_typeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-28hush: fix bug 353 (wrong handling of \x in assignments)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-28hush: optimize type builtin a bit moreDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-28hush: optimize type builtin a bitDenys Vlasenko
function old new delta builtin_type 130 125 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-27hush: implement `type`Mike Frysinger
Implement support for the POSIX `type` command. Only POSIX stuff is supported here, no bash extensions like -p or -P. In the process, split the $PATH searching code out of builtin_source() and into its own find_in_path() function so we don't duplicate it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-05-27hush: remove outdated TODO and superfluous macro; fix compile breakageDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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