busybox-w32/debianutils, branch su_cmd2

win32: code shrink detection of executables

2023-03-16T10:47:09+00:00

Add a function, file_is_win32_exe(), to detect if a path refers to an executable. It tries adding extensions if necessary. Use this in a number of places to replace common code of the form path = alloc_ext_space(cmd); if (add_win32_extension(path) || file_is_executable(path)) Saves 32-48 bytes.

win32: revert special treatment of Unix-style absolute paths

2022-10-26T10:47:42+00:00

Commit 605972390 (win32: handle Unix-style absolute paths for executables) added special treatment of paths for executables starting with a slash. Such paths are absolute on Unix but are relative to the current drive on Windows. On reflection this commit did more than necessary. Later commits provided special treatment only for paths starting with locations traditionally used to contain binaries on Unix. This is probably sufficient. Problems introduced by commit 605972390 include: - If the current drive isn't the system drive tab completion of a command starting with a slash confusingly references the system drive. - Building busybox-w32 with w64devkit fails on drives other than the system drive. Revert the changes introduced by commit 605972390. This saves 192 bytes. (GitHub issue #239)

win32: search PATH for missing Unix-style executables

2022-05-06T08:30:43+00:00

Commit 41ef232fc5 (win32: use built-in applets for non-existent binaries with Unix-style paths) alters what happens when trying to find an executable. If all of the following apply: - the pathname starts with one of the standard directories for Unix executables (/bin, /usr/bin, /sbin, /usr/sbin); - the file isn't found relative to the system root; - the basename matches an applet then the applet is run. Further extend the procedure so that if the first two conditions are met and either: - the PREFER_APPLETS and SH_STANDALONE features are enabled and the basename *doesn't* match an applet or - the PREFER_APPLETS and SH_STANDALONE features are disabled then PATH is searched for the basename. This affects: - how interpreters and binaries are spawned by mingw_spawn_interpreter() and mingw_spawnvp(); - how 'which' and the shell search for binaries. Special steps need to be taken in the shell to avoid treating shell built-ins and functions as applets. As a consequence of this change: - An executable that isn't an applet, say curl.exe, can be run as /usr/bin/curl so long as it's in a directory in PATH. It doesn't have to be in C:/usr/bin. - If the PREFER_APPLETS and SH_STANDALONE features are disabled binaries can be run using paths referring to standard Unix directories even if they're installed elsewhere in PATH.

which,ash: changes to which/command/type

2022-05-01T10:03:10+00:00

Change how 'which' detects if it was run from a standalone shell: the shell passes the undocumented '-s' option. This is stricter and more reliable than the previous method of checking the name of the binary. Add a function to determine the binary associated with a given applet name. This makes it possible for 'which' and 'command -v' to list the correct binary even for applets other than 'busybox'. For example, when the binary is called 'sh.exe' 'which sh' will report its path. In standalone shell mode 'command -V' and 'type' now report "xxx is a builtin applet" rather than "xxx is xxx", which is true but not very illuminating. (GitHub issue #248)

Merge busybox into merge

2022-01-06T07:46:38+00:00

Fix merge conflict in miscutils/less.c. Use exit_SUCCESS() where possible.

libbb: code shrink: introduce and use [_]exit_SUCCESS()

2022-01-05T21:16:06+00:00

function old new delta exit_SUCCESS - 7 +7 _exit_SUCCESS - 7 +7 run_pipe 1562 1567 +5 pseudo_exec_argv 399 400 +1 finish 86 87 +1 start_stop_daemon_main 1109 1107 -2 shutdown_on_signal 38 36 -2 runsv_main 1662 1660 -2 redirect 1070 1068 -2 read_line 79 77 -2 pause_and_low_level_reboot 54 52 -2 list_i2c_busses_and_exit 483 481 -2 less_exit 12 10 -2 identify 4123 4121 -2 grep_file 1161 1159 -2 getty_main 1519 1517 -2 fsck_minix_main 2681 2679 -2 free_session 132 130 -2 fdisk_main 4739 4737 -2 clean_up_and_exit 53 51 -2 bsd_select 1566 1564 -2 bb_daemonize_or_rexec 198 196 -2 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 3/17 up/down: 21/-34) Total: -13 bytes Signed-off-by: Denys Vlasenko

Merge busybox into merge

2021-12-27T08:21:55+00:00

Fix merge conflict in coreutils/timeout.c.

which: add -a to help text

2021-11-09T12:51:22+00:00

function old new delta packed_usage 34075 34079 +4 Signed-off-by: Denys Vlasenko

Merge branch 'busybox' into merge

2021-06-07T10:34:06+00:00

run-parts: permit dot later in file name

2021-06-05T16:40:58+00:00

See https://gist.github.com/andyshinn/3ae01fa13cb64c9d36e7#gistcomment-2044506 To test: mkdir /tmp/testrp printf "#!/bin/sh\necho test\n" > /tmp/testrp/test.sh chmod a+x /tmp/testrp/* busybox run-parts /tmp/testrp test mv /tmp/testrp/test.sh /tmp/testrp/.test.sh busybox run-parts /tmp/testrp # no output function old new delta act 190 200 +10 Signed-off-by: Ján Sáreník Signed-off-by: Denys Vlasenko