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| * ash: fix sleep built-in not running INT trap immediately on ^CDenys Vlasenko2023-04-101-9/+7
| | | | | | | | | | | | | | function old new delta sleep_for_duration 169 149 -20 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * mkfs_vfat: do not generate same volume_id when run in rapid successionDenys Vlasenko2023-04-101-2/+3
| | | | | | | | | | | | | | function old new delta mkfs_vfat_main 1502 1523 +21 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * seq: accept negative parametersDenys Vlasenko2023-04-102-2/+24
| | | | | | | | | | | | | | | | | | | | function old new delta seq_main 429 476 +47 packed_usage 34557 34538 -19 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 47/-19) Total: 28 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | wget: enable progress bar in default configurationRon Yorston2023-04-163-3/+3
| | | | | | | | | | | | For some reason the progress bar in wget has never been enabled. Costs 1536-1600 bytes.
* | libbb: don't build useless functionsRon Yorston2023-04-162-0/+8
| | | | | | | | | | | | | | | | | | | | The functions ndelay_on(), ndelay_off() and close_on_exec_on() don't do anything useful because our fcntl(2) implementation doesn't support the features they require. Replace them with stubs. Saves 176-208 bytes.
* | ash: more Unix-style path fixesRon Yorston2023-04-161-7/+19
| | | | | | | | | | | | | | | | | | | | | | Commit 950b318a2 (ash: Unix-style paths, shell builtins and applets) broke running of Unix-style absolute paths from the shell by PATH search. The copy of the program name on the stack should only be used in the first call to tryexec() otherwise it interferes with the use of the stack by padvance(). Also, bring the code to handle Unix-style paths in find_command() into line with the revised code in shellexec().
* | win32: further fix incorrect path search in spawnvpRon Yorston2023-04-161-1/+3
| | | | | | | | | | | | | | | | Commit 9581d2396 (win32: fix incorrect path search in spawnvp) fixed the unwanted PATH search for relative or absolute paths but broke the desired PATH search for Unix-style paths. (GitHub issue #310)
* | win32: fix incorrect path search in spawnvpRon Yorston2023-04-141-3/+1
| | | | | | | | | | | | | | | | | | Commit 26ba73098e (win32: search PATH for missing Unix-style executables) rearranged the code of mingw_spawnvp(). As a result commands with a relative or absolute path could be incorrectly searched for on PATH. (GitHub issue #310)
* | Merge branch 'busybox' into mergeRon Yorston2023-04-0920-122/+271
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| * libbb: consolidate NOMMU fix of restoring high bit in argv[0][0]Denys Vlasenko2023-04-065-9/+8
| | | | | | | | | | | | | | | | | | | | | | function old new delta fork_or_rexec 46 56 +10 bootchartd_main 1087 1079 -8 cpio_main 674 661 -13 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 10/-21) Total: -11 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: sleep builtin with no arguments should not exitDenys Vlasenko2023-04-032-2/+15
| | | | | | | | | | | | | | | | | | | | function old new delta sleep_main 116 143 +27 .rodata 105245 105268 +23 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 50/0) Total: 50 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * hush: printf builtin with no arguments should not exitDenys Vlasenko2023-04-031-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: code shrink: do not take address of prefix(), allowing it to inlineDenys Vlasenko2023-04-031-8/+4
| | | | | | | | | | | | | | | | | | | | function old new delta getjob 281 285 +4 prefix 13 - -13 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/0 up/down: 4/-13) Total: -9 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: code shrink - reuse is_prefixed_with() from libbbDenys Vlasenko2023-04-031-2/+4
| | | | | | | | | | | | | | | | | | | | | | function old new delta changepath 67 68 +1 legal_pathopt 70 66 -4 prefix 34 13 -21 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 1/-25) Total: -24 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: get rid of separate mail_var_path_changed flag variableDenys Vlasenko2023-04-031-10/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can just clear mailtime_hash to zero and have the same effect. function old new delta changemail 8 11 +3 mail_var_path_changed 1 - -1 cmdloop 398 382 -16 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/1 up/down: 3/-17) Total: -14 bytes text data bss dec hex filename 1054786 559 5020 1060365 102e0d busybox_old 1054773 559 5020 1060352 102e00 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: fix still-broken new mail detectionDenys Vlasenko2023-04-031-4/+4
| | | | | | | | | | | | | | | | padvance() exit condition is return value < 0, not == 0. After MAIL changing twice, the logic erroneously concluded that "you have new mail". Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: fix broken new mail detectionDenys Vlasenko2023-04-031-1/+0
| | | | | | | | | | | | | | | | | | | | Mea culpa, in "Do not allocate stack string in padvance" commit (I left an extraneous "break" statement). function old new delta cmdloop 329 398 +69 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * hush (NOMMU): fix LINENO in execed childrenDenys Vlasenko2023-04-011-0/+15
| | | | | | | | | | | | | | | | | | | | | | function old new delta hush_main 1815 1851 +36 re_execute_shell 601 635 +34 .rodata 102721 102726 +5 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 75/0) Total: 75 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * hush: speed up "big heredoc" codeDenys Vlasenko2023-04-011-7/+15
| | | | | | | | | | | | | | | | | | | | function old new delta hush_main 1810 1815 +5 .rodata 102723 102721 -2 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 5/-2) Total: 3 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * hush: add TODO commentDenys Vlasenko2023-04-011-0/+3
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: code shrinkDenys Vlasenko2023-04-011-3/+3
| | | | | | | | | | | | | | | | | | | | function old new delta describe_command 323 320 -3 dotcmd 324 309 -15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-18) Total: -18 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: exec: Stricter pathopt parsing - lost chunkDenys Vlasenko2023-03-311-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: improve trap and jobs builtins in child shellsRon Yorston2023-03-313-6/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The trap and jobs builtins can be used to report information about traps and jobs. This works when they're called from the current shell but in a child shell the required information is usually cleared. Special hacks allow: - trap to work with command substitution; - jobs to work with command substitution or in a pipeline. Neither works with process substitution. - Relax the test for the trap hack so it also supports pipelines. - Pass the command to be evaluated to forkshell() in evalbackcmd() so trap and jobs both work with process substitution. function old new delta forkchild 629 640 +11 argstr 1502 1496 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 11/-6) Total: 5 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * modprobe: call finit_module with MODULE_INIT_COMPRESSED_FILE if module name ↵Denys Vlasenko2023-03-312-2/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | doesn't end with .ko IOW: if name doesn't end with .ko, assume it's .gz/.xz or similar, and ask kernel to uncompress it. If finit_module(MODULE_INIT_COMPRESSED_FILE) fails, retry with finit_module(0). function old new delta bb_init_module 151 197 +46 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * ash: make EPOCH variables work if RANDOM is disabledRon Yorston2023-03-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 1d37186fe2 (ash: add bash-compatible EPOCH variables) added support for the EPOCHSECONDS and EPOCHREALTIME variables. These variables are dynamic and therefore require the VDYNAMIC flag to be non-zero. However, this is only the case if support for the RANDOM variable is enabled. Give VDYNAMIC a non-zero value if either EPOCH variables or RANDOM are enabled. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * lineedit: fix matching of directories when searching PATHRon Yorston2023-03-291-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 8baa643a3 (lineedit: match local directories when searching PATH) included subdirectories of the current directory in the search when tab-completing commands. Unfortunately a short time later commit 1d180cd74 (lineedit: use strncmp instead of is_prefixed_with (we know the length)) broke this feature by returning an incorrect length for the array of paths. Fix the length and reinstate matching of subdirectories. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * libbb/sha: do not read shaNI variable twice, and factor out its settingDenys Vlasenko2023-03-291-12/+16
| | | | | | | | | | | | | | | | | | | | | | | | My gcc inlines both calls, so instead of "-20 bytes" I get only this: function old new delta sha256_begin 84 83 -1 sha1_begin 114 111 -3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-4) Total: -4 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * libbb/sha: fix sha-NI instruction detectionDenys Vlasenko2023-03-291-2/+2
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * httpd: do not mangle cgi-bin/SCRIPT/params URLsDenys Vlasenko2023-03-281-36/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | If cgi-bin/ prefix is seen, do not test the rest for existence, whether it's a dir, and such. function old new delta handle_incoming_and_exit 2200 2212 +12 Reported here: https://lists.zx2c4.com/pipermail/cgit/2023-March/004825.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * find: implement -okDavid Leonard2023-03-282-3/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html -ok utility_name [argument ...] ; The -ok primary shall be equivalent to -exec, except that the use of a <plus-sign> to punctuate the end of the primary expression need not be supported, and find shall request affirmation of the invocation of utility_name using the current file as an argument by writing to standard error as described in the STDERR section. If the response on standard input is affirmative, the utility shall be invoked. Otherwise, the command shall not be invoked and the value of the -ok operand shall be false. function old new delta do_exec 438 517 +79 parse_params 1833 1845 +12 static.params 288 292 +4 .rodata 100771 100775 +4 packed_usage 34543 34541 -2 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/1 up/down: 99/-2) Total: 97 bytes Signed-off-by: David Leonard <d+busybox@adaptive-enterprises.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * fixdep: avoid underflow when end of entry doesn't coincide with EOFArsen Arsenović2023-02-271-0/+5
| | | | | | | | | | | | | | Bug: https://bugs.gentoo.org/893776 Closes: https://bugs.busybox.net/show_bug.cgi?id=15326 Signed-off-by: Arsen Arsenović <arsen@gentoo.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * unzip: document some options we might supportDenys Vlasenko2023-02-231-0/+7
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * unzip: clear SUID/GID bits, implement -K to not clear themDenys Vlasenko2023-02-221-3/+12
| | | | | | | | | | | | | | | | | | | | | | function old new delta unzip_main 2656 2715 +59 packed_usage 34517 34552 +35 .rodata 105250 105251 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 95/0) Total: 95 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * top: stop using div() from libc, compilers now do it betterDenys Vlasenko2023-02-131-9/+16
| | | | | | | | | | | | | | | | | | | | function old new delta div 23 - -23 display_process_list 1237 1178 -59 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 0/1 up/down: 0/-82) Total: -82 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | ash: remove ASH_IGNORE_CR config optionRon Yorston2023-04-096-33/+10
| | | | | | | | | | | | | | | | | | | | | | | | No further problems with CRLF handling have been reported. Remove the configuration option that allowed some recent changes to be turned off. Also, prevent some WIN32 code from being included in the POSIX build. The faulty code is from commit 64c8f5f3d (ash: add support for INT trap). These changes don't alter the default WIN32 build.
* | xargs: kill children when interrupted by Ctrl-CRon Yorston2023-04-071-3/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A user was running the following command in a clone of the busybox-w32 repo from a busybox-w32 shell using Git for Windows: git rev-list --all | xargs git grep main.c Using Ctrl-C to interrupt the command resulted in the familiar problem that two processes ended up competing for user input: in this case the busybox-w32 shell and the Git for Windows pager, less. Make the problem go away (in this particular case) by killing all the children of xargs when it's interrupted. This is probably a sensible thing to do for other circumstances too. Adds 64-100 bytes. (GitHub issue #306)
* | win32: ignore ctrl-c in parent of execve(2)Ron Yorston2023-04-051-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The execve(2) system call is emulated for Microsoft Windows. This requires the creation of a new process. The old process remains active, waiting for the "execed" child to exit so it can pass on its exit status. Previously this was achieved using P_WAIT mode in the call to spawnve(). However the parent of the execve(2) process may still be able to catch Ctrl-C interrupts. This can lead to unwanted behaviour, such as a shell and its children competing for input. Force the waiting process to ignore Ctrl-C interrupts. Costs 64-80 bytes. (GitHub issue #303)
* | ash: special treatment for read builtinRon Yorston2023-04-051-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When INT is being trapped the read builtin gets special treatment in bash. In a top-level interactive shell interrupting the read with Ctrl-C clears the input and allows the user to enter a new string. In a subshell Ctrl-C really does interrupt the read and the trap isn't executed. zsh works similarly, except that in the latter case the trap is executed. dash interrupts the read and executes the trap in both cases. ksh also interrupts the read in both cases but only executes the trap in the first. Implement the bash behaviour. (GitHub issue #303)
* | ash: reinstate fix for ctrl-c issueRon Yorston2023-04-051-1/+1
| | | | | | | | | | Reinstate the change introduced in commit 96c104a61c (ash: try harder to avoid ctrl-c issue). It was removed during recent work on traps.
* | ash: add support for INT trapRon Yorston2023-04-033-10/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The trap builtin now handles INT. As before, other signals (from a limited list) are accepted but their traps don't have any effect. There's some variability in how shells handle traps. This patch upholds that proud tradition. Various changes are needed to make this work: - Line editing has a new flag to ignore Ctrl-C. - If INT is being trapped or ignored don't call raise_interrupt(). - A minimal implementation of dotrap() is provided. - Call dotrap() when the read builtin or line input detect Ctrl-C. - Adjust Ctrl-C detection when the INT trap is changed. - Set may_have_traps when an INT trap is set. Costs 368-448 bytes. (GitHub issue #303)
* | win32: add fake HUP and QUIT signalsRon Yorston2023-04-032-2/+4
| | | | | | | | | | | | | | | | | | | | | | It's fairly common for shell scripts to trap this set of signals: EXIT HUP INT QUIT TERM (or the numeric equivalent: 0 1 2 3 15) Add definitions for SIGHUP and SIGQUIT. We don't take any action if traps are defined for them, but at least scripts won't fail. (GitHub issue #303)
* | ash: fix POSIX buildRon Yorston2023-04-031-0/+2
| | | | | | | | | | | | Commit 950b318a2 (ash: Unix-style paths, shell builtins and applets) added a call to stack_add_ext_space() which should only be included when building for Microsoft Windows.
* | ash: Unix-style paths, shell builtins and appletsRon Yorston2023-03-311-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some shell builtins also exist as applets: echo, printf, pwd and test, for example. If such an applet is referenced using a Unix- style path, e.g. /usr/bin/echo, the applet should be run rather than the builtin. Instead the current code says: sh: /usr/bin/echo: file not found Rearrange the tests in shellexec() so the correct behaviour occurs. Actually, the error message was also incorrect due to a separate bug. Commit d71cb67ff (win32: revert special treatment of Unix-style absolute paths) failed to allocate space on the stack so that the command passed to tryexec() could have an extension added if required.
* | ash: changes to evalsubshell()Ron Yorston2023-03-281-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When a spawn_forkshell() was required in evalsubshell() two calls to expredir() were being made: one in the parent and one in the child. Rearrange the code so there's only one call, in the child. The call to expredir() in the child is necessary because copynode() doesn't take a copy of expfname in the nfile node. Code could be added to do this but it's cheaper to call expredir(). Add code in forkshell_evalsubshell() to turn off the EV_TESTED flag for background processes. I haven't found a case where this makes a difference but no doubt somebody would have eventually.
* | drop: adjust environment on privilege changeRon Yorston2023-03-272-5/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some environment variables are subject to special treatment: USER, LOGNAME, HOME and SHELL are initialised when the shell starts if they don't already have a value. Some adjustments are necessary when changing privilege level: - USERNAME is added to the set of variables subject to special treatment. Unlike the others this is normally set on Windows. - The special variables are now also updated on shell start up if the current process is running with elevated privileges. This is necessary so USER, USERNAME and LOGNAME have the correct value. - USER, USERNAME and LOGNAME are set to the name of the unprivileged user when elevated privileges are dropped, though not if they've been changed from the expected value of "root". Costs 160-208 bytes. (GitHub issue #300)
* | win32: use CheckTokenMembership() to check privilegeRon Yorston2023-03-251-14/+16
| | | | | | | | | | | | | | Rewrite the test for the reduced-privilege token: check whether the BUILTIN\Administrators group is enabled. This seems more directly relevant than the previous check for restrictions on the token.
* | lineedit: fix matching of directories when searching PATHRon Yorston2023-03-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 8baa643a3 (lineedit: match local directories when searching PATH) included subdirectories of the current directory in the search when tab-completing commands. Unfortunately a short time later commit 1d180cd74 (lineedit: use strncmp instead of is_prefixed_with (we know the length)) broke this feature by returning an incorrect length for the array of paths. Fix the length and reinstate matching of subdirectories. Signed-off-by: Ron Yorston <rmy@pobox.com>
* | drop: cdrop and pdrop don't need shellRon Yorston2023-03-233-12/+38
| | | | | | | | | | | | | | | | | | The cdrop and pdrop variants don't require the binary to include a shell. Removing this dependency makes it possible to build cdrop/pdrop as a much smaller standalone binaries. Update the default configuration to build a standalone make binary to exclude drop/cdrop/pdrop.
* | drop: search PATH for cmd.exe/PowerShellRon Yorston2023-03-231-27/+25
| | | | | | | | | | | | | | | | | | Rather than hardcode the paths of cmd.exe and PowerShell find them by searching PATH. Saves 104-128 bytes. (GitHub issue #240)
* | drop: add cdrop and pdrop aliasesRon Yorston2023-03-194-4/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add cdrop and pdrop applets as aliases for drop. If a command isn't specified these use cmd.exe and PowerShell instead of the BusyBox shell. This makes it possible to choose the default shell used for SSH connections even in older versions of OpenSSH that don't support the DefaultShellArguments registry key. Note that to get cmd.exe to run a command rather than an interactive shell it's necessary to set the DefaultShellCommandOption registry key to '/c'. Costs 248-272 bytes.
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-05 09:34:19 +0000