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* flua: unbreak the buildKyle Evans2025-10-042-0/+709
| | | | | | | | | Local tree pollution let this escape. *sigh*. Pointy hat: kevans Pointy hat: kevans Pointy hat: kevans Fixes: 9c7db0931d486ce ("flua: move lposix back into flua for now")
* flua: kick out the remaining builtin modulesKyle Evans2025-10-046-1505/+0
| | | | | | | | | | | | | Bootstrap flua has some magic now to handle modules by building them in and discovering them via linker sets. This is slightly cleaner than always building them in and baking them into loadedlibs for both bootstrap and system flua. Adjust the stand build now that these three libs have their own new homes. Reviewed by: bapt, emaste Differential Revision: https://reviews.freebsd.org/D51891
* Revert "flua: kick out the remaining builtin modules"Kyle Evans2025-10-046-0/+1505
| | | | | This reverts commit 80ada959004c4386880e47b11618f8abfc2d80e1, because bootstrap flua is about to get backed out.
* flua: kick out the remaining builtin modulesKyle Evans2025-10-036-1505/+0
| | | | | | | | | | | | | Bootstrap flua has some magic now to handle modules by building them in and discovering them via linker sets. This is slightly cleaner than always building them in and baking them into loadedlibs for both bootstrap and system flua. Adjust the stand build now that these three libs have their own new homes. Reviewed by: bapt, emaste Differential Revision: https://reviews.freebsd.org/D51891
* flua: fbsd: allow stdout to be captured for exec() processesKyle Evans2025-07-091-13/+82
| | | | | | | | | | | | | | | | | | | | | | | This allows us to do things like: ``` local fp = assert(fbsd.exec({"ls", "-l"}, true)) local fpout = assert(fp:stdout()) while true do local line = fpout:read("l") if not line then break end print("Read: " .. line) end fp:close() ``` The makeman lua rewrite will use it to capture `make showconfig` output for processing. Reviewed by: bapt Differential Revision: https://reviews.freebsd.org/D50539
* flua: fbsd: return a process handle to operate on when we exec()Kyle Evans2025-07-091-8/+86
| | | | | | | | | | | This gives us some way to be able to write to stdin if we want to, or as a future improvement, will allow us to extract stdout from the process. The handle is setup to close and waitpid() on close/gc so that existing users wouldn't necessarily leak for the lifetime of the script if they weren't adopted to the new model. Reviewed by: bapt Differential Revision: https://reviews.freebsd.org/D50538
* flua: fbsd: avoid leaking stdin pipes on errorKyle Evans2025-07-091-6/+10
| | | | | | | | | | | | Additionally, there's no way to get to the end without a valid stdin_pipe[1] at the moment, so don't check for it. stdin_pipe[0] is closed earlier, as the parent shouldn't need the read-side of the pipe. While we're here, also free the file actions earlier and on error -- they're not necessary once posix_spawnp() has returned. Reviewed by: bapt Differential Revision: https://reviews.freebsd.org/D50537
* lposix: Clean up the posix namespace definitionsMark Johnston2025-07-072-18/+41
| | | | | | | | | | | | | | | | | | | | | | | | The posix module is subdivided according to C headers; for instance, posix.unistd contains routines available from unistd.h, such as chown(2). A quirk of our implementation is that each of the modules is a direct entry in the global table. That is, there is no "posix" table. Instead, "posix.foo" and "posix.bar.baz" are both top-level tables. This is surprising and goes against Lua's shorthand of using "." to access keys in a table. lua-posix also doesn't work this way. Rework things so that "posix" and "posix.sys" are proper tables. Existing flua code which uses require() to bind posix submodules to a name will be unaffected. Code which accesses them directly using something like _G["posix.sys.utsname"].uname() will be broken, but I don't think anything like that exists. In particular, it is now possible to call posix.sys.utsname.uname() without any require statements. Reviewed by: imp, bapt MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D51158
* lposix: Use reentrant passwd and group lookup functionsMark Johnston2025-07-041-10/+19
| | | | | | | | | | | | | The implementation of chown() in the posix module handles user and group names as well as numeric IDs. When resolving names, be sure to use reentrant lookup functions rather than assuming it's safe to clobber the internal buffers used by getpwnam() and getgrnam(). Fix some style nits while here. Reviewed by: imp, bapt MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D46555
* flua: add posix.unistd.execpIsaac Freund2025-05-121-0/+57
| | | | | | | | This matches the interface of lposix, although I do wonder why they went with execp rather than execvp for the function name here. Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D50177
* flua: add posix.unistd.dup2()Isaac Freund2025-05-121-0/+34
| | | | | | Reviewed by: emaste Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D50176
* flua: clean up lposix argument checkingIsaac Freund2025-05-111-68/+43
| | | | | | | | | | | | | | | | | The key insight here is that the luaL_check*() and luaL_opt*() functions will happily take indexes that are larger than the stack top and print a useful error message. This means that there is no need to check if too few arguments have been received prior to checking the types of individual arguments. This patch also replaces a couple reimplementations of luaL_opt*() functions with the luaL helpers. References: https://www.lua.org/manual/5.4/manual.html#4.1.2 Reviewed by: emaste, kevans Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D50273
* flua: lposix: add fnmatch functionStefan Eßer2024-10-282-0/+42
| | | | | | | | | | | The fnmatch function matches a string against a shell-style filename pattern. It is a complex function and cannot easily be implenented using regular expressions. Adding fnmatch to flua increases the amd64 binary by less than 1 KB. Approved by: markj MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D46849
* Fix the cross-build after recent commitsKyle Evans2024-09-301-0/+2
| | | | | | | | | | | - Provide a sys/md4.h in the cross-build environment to fix bootstrap of libmd. - flua now exposes WTRAPPED which isn't incredibly common- make it conditional, we probably won't be using it in any bootstrap context any time soon. Fixes: 442e0975ee4b3 ("Consolidate md4 implementations written in C") Fixes: c2caf3b3313fe ("flua: posix: add more useful functions [...]")
* flua: lposix: add more useful functions for general purpose scriptsKyle Evans2024-09-302-33/+385
| | | | | | | | | | | | | | | | | | | | | | | | | unistd: - _exit - close - fork - getpid - pipe - read - write libgen: - basename, dirname stdlib: - realpath These are sufficient for a number of real world scenarios. In our first application of them, we use the libgen+stdlib additions to grab the script dir based on argv[0]. The unistd assortment is then used to outsource a bunch of work to forks and report back to the main process. Reviewed by: emaste, imp Differential Revision: https://reviews.freebsd.org/D39083
* flua: Add wrappers for sys/utsname.hMark Johnston2024-09-052-1/+47
| | | | | | | | This allows one to invoke uname from lua scripts. Reviewed by: bapt, kevans, emaste MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D42017
* flua: add fbsd moduleBaptiste Daroussin2023-09-272-0/+166
| | | | | | | | | | | | This module is bundled into flua, it only provides for now the exec function. The point of the function is to be able to execute a program without actually executing a shell. to use it: fbsd.exec({"id", "bapt"}) Reviewed by: manu Differential Revision: https://reviews.freebsd.org/D41840
* Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-162-4/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* Remove $FreeBSD$: one-line .c comment patternWarner Losh2023-08-161-1/+0
| | | | Remove /^/[*/]\s*\$FreeBSD\$.*\n/
* Remove $FreeBSD$: two-line .h patternWarner Losh2023-08-161-2/+0
| | | | Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
* flua: chown(2) binding, fix bad copy/pasteBaptiste Daroussin2022-11-251-1/+1
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* flua: add a chown(2) bindingBaptiste Daroussin2022-11-251-0/+59
| | | | | | | | | The main difference with the chown in luaposix, is that it checks and reports if a user or a group do exist when a string is passed as arguments Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D37479
* stand: lua: enhance lfs.dir() to speed up kernels_autodetectKyle Evans2021-01-291-1/+27
| | | | | | | | | | | | | | | | This eliminates a lot of stat() calls that happen when lualoader renders the menu with the default settings, and greatly speeds up rendering on my laptop. ftype is nil if loader/loader.efi hasn't been updated yet, falling back to lfs.attributes() to test. This is technically incompatible with lfs, but not in a particularly terrible way. Reviewed-by: cem MFC-after: 4 days Differential Revision: https://reviews.freebsd.org/D27542
* flua: implement chmodEd Maste2020-03-132-0/+39
| | | | | | | | | | | | Lua does not provide a native way to change the permission of a file. Submitted by: Yang Wang <2333@outlook.jp> Reviewed by: kevans Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D24036 Notes: svn path=/head/; revision=358960
* Add flua to the base system, install to /usr/libexecKyle Evans2019-11-184-0/+531
FreeBSDlua ("flua") is a FreeBSD-private lua, flavored with whatever extensions we need for base system operations. We currently support a subset of lfs and lposix that are used in the rewrite of makesyscall.sh into lua, added in r354786. flua is intentionally written such that one can install standard lua and some set of lua modules from ports and achieve the same effect. linit_flua is a copy of linit.c from contrib/lua with lfs and lposix added in. This is similar to what we do in stand/. linit.c has been renamed to make it clear that this has flua-specific bits. luaconf has been slightly obfuscated to make extensions more difficult. Part of the problem is that flua is already hard enough to use as a bootstrap tool because it's not in PATH- attempting to do extension loading would require a special bootstrap version of flua with paths changed to protect the innocent. src.lua.mk has been added to make it easy for in-tree stuff to find flua, whether it's bootstrap-flua or relying on PATH frobbing by Makefile.inc1. Reviewed by: brooks, emaste (both earlier version), imp Differential Revision: https://reviews.freebsd.org/D21893 Notes: svn path=/head/; revision=354833
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