busybox-w32/shell, branch long_paths

ash: allow execution of busybox-w32 binary without extension

2026-02-25T09:33:36+00:00

If the busybox-w32 binary didn't have an extension the shell was unable to spawn itself: $ ls -l busybox -rwxrwxr-x 1 rmy rmy 661006 Feb 25 09:37 busybox $ ./busybox sh $ ls sh: unable to spawn shell This happened because the shell used spawnve() from the C runtime to execute itself. Microsoft insists on trying to add an extension to the name of the binary unless it has an explicit '.' as its last character. Use the internal spawnveq() instead, as it handles various quirks like the above. Adds 16-32 bytes. (GitHub issue #566)

ash: fix execution of applets via Unix-style path

2026-02-14T21:09:47+00:00

Merging of upstream changes to ash failed to ensure that applets could be executed using a Unix-style path. Move the necessary code from shellexec() to tryexec(). (GitHub issue #565)

Merge branch 'busybox' into merge

2026-02-12T12:58:38+00:00

ash: fix help builtin and tab completion of builtins

2026-02-09T10:53:01+00:00

Commit 56143ea63 (ash: code shrink: eliminate pstrcmp1()) changed the layout of struct builtincmd so the name member points to the start of the name, not the flag in the first element of the string. This broke the help builtin and tab completion of builtins. Remove the unnecessary '+ 1' in ash_command_name() and helpcmd(). This patch has been submitted upstream.

Merge branch 'busybox' into merge

2026-02-09T10:52:28+00:00

*: use is_prefixed_with() where appropriate

2026-02-07T00:10:55+00:00

function old new delta resume_main 560 556 -4 uuidcache_check_device 107 101 -6 ntp_init 1005 997 -8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-18) Total: -18 bytes Signed-off-by: Denys Vlasenko

*: use xasprintf_inplace() in more places

2026-02-06T10:19:11+00:00

function old new delta .rodata 107009 107018 +9 parse_stream 3075 3069 -6 buffer_print 612 603 -9 expand_args 159 144 -15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/3 up/down: 9/-30) Total: -21 bytes Signed-off-by: Denys Vlasenko

Merge branch 'busybox' into merge

2026-02-04T14:11:59+00:00

ash: remove unnecessary conditional compilation

2026-01-30T08:47:45+00:00

Additional support for background jobs was added in commits 010abea6f and 1403d81c4. The condition ENABLE_PLATFORM_POSIX || JOBS_WIN32 in showjob() is always true. The conditional compilation can be removed.

ash: don't skip exec() if std streams are invalid

2026-01-29T08:02:09+00:00

This didn't produce the expected output when run from ash: ash -c "echo abc | sed s/a/x/" <&- In general, if the last command in the pipe read from stdin the command didn't work; if it read from file descriptor 0 (e.g. cat) it did. Closing a file descriptor caused the corresponding stream to become invalid. For performance reasons the shell in busybox-w32 runs applets without an exec(), but that results in their seeing the invalid stream from their parent. Avoid the problem by calling exec() in such cases. This causes the child process to get a new stdin stream initialised from the file descriptor. The test also applies to stdout and stderr. There's no discernable affect on performance when running the test suite. Adds 64-96 bytes. (GitHub issue #558)