A mirror of https://github.com/rmyorston/busybox-w32.git https://git.lua4.win/busybox-w32/atom?h=su_cmd2 2023-04-23T08:04:01+00:00 2023-04-23T08:04:01+00:00 Ron Yorston rmy@pobox.com 2023-04-23T08:00:04+00:00 urn:sha1:0575aaaa0779812752427badbc0f80a09aac02a4 Export the function xappendword() from make. Use it in drop and watch. Saves 8-80 bytes, an unusually large disparity. 2023-04-16T09:02:01+00:00 Ron Yorston rmy@pobox.com 2023-04-16T09:02:01+00:00 urn:sha1:e3e510b52695bbf5c55d83c971dc23813325cfc9 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) 2023-04-14T17:45:07+00:00 Ron Yorston rmy@pobox.com 2023-04-14T17:36:29+00:00 urn:sha1:9581d23964c7efad6f8e74e754e36c1ad292cf45 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) 2023-04-05T08:32:42+00:00 Ron Yorston rmy@pobox.com 2023-04-05T08:32:42+00:00 urn:sha1:9db9b34adaad1a9ebe892eaea486cfe0610bad8d 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) 2023-03-25T15:04:15+00:00 Ron Yorston rmy@pobox.com 2023-03-25T15:04:15+00:00 urn:sha1:f4178f8d0b97baea0bb6a6444fc37171c83ad316 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. 2023-03-19T10:26:24+00:00 Ron Yorston rmy@pobox.com 2023-03-19T10:26:24+00:00 urn:sha1:d9e8bb61cf380264511a4524281af2ca57498bce 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. 2023-03-19T10:25:23+00:00 Ron Yorston rmy@pobox.com 2023-03-19T10:25:23+00:00 urn:sha1:b0e7a401d51402c052563f55331c8b9001a1215c Remove the runuser applet, leaving only drop. Move drop from util-linux to miscutils. A command of the form 'drop -c command' causes the BusyBox shell to be used, just like 'drop' without any arguments. A simple OpenSSH configuration with 'drop.exe' as DefaultShell and no DefaultShellArguments now works both for interactive login and to run a command. This is useful for older versions of OpenSSH which don't support DefaultShellArguments. Saves 208-232 bytes. 2023-03-19T10:24:43+00:00 Ron Yorston rmy@pobox.com 2023-03-19T10:24:43+00:00 urn:sha1:6de29a7e5346bea9c1c2ad4faf4010ee78f1a97b Make quote_arg() always return an allocated string so we can free it unconditionally. Always use argv[1] as the first part of the command string. Saves 48 bytes. 2023-03-17T13:20:53+00:00 Ron Yorston rmy@pobox.com 2023-03-17T13:20:53+00:00 urn:sha1:cb50586aedc9725fb14dbb25263bba1598726037 Commit 93a63809f9 (win32: add support for the euro currency symbol) caused all invocations of busybox-w32 to change code page 850 to 858. This has been known to cause problems with fonts in PowerShell (GitHub issue #207). Delay changing the code page until an i/o operation is imminent. Instances of PowerShell started by the `drop` applet during ssh login thus no longer have their code page adjusted. 2023-03-16T15:37:15+00:00 Ron Yorston rmy@pobox.com 2023-03-16T15:21:41+00:00 urn:sha1:87e7e7b1e61caa87112e3cf6527b606086b6b688 The 'drop' alias for 'runuser' relaxes a number of constraints that were introduced for compatibility: - It works even if the current process doesn't have elevated privileges. - It isn't necessary to specify the name of the user. - Any command can be invoked, not just the BusyBox shell. - If the command doesn't specify a path 'drop' will first look for a BusyBox applet then search PATH. Adds 320-336 when built along with runuser. (GitHub issue #240)