flua: lposix: add fnmatch function

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.

flua: lposix: add fnmatch function

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

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Fix the cross-build after recent commits

- 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
co

Fix the cross-build after recent commits

- 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 [...]")

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flua: lposix: add more useful functions for general purpose scripts

unistd:
- _exit
- close
- fork
- getpid
- pipe
- read
- write

libgen:
- basename, dirname

stdlib:
- realpath

These are sufficie

flua: lposix: add more useful functions for general purpose scripts

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

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flua: Add wrappers for sys/utsname.h

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

Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

flua: chown(2) binding, fix bad copy/paste

flua: add a chown(2) binding

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
Dif

flua: add a chown(2) binding

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

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flua: implement chmod

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
Differ

flua: implement chmod

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

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Add flua to the base system, install to /usr/libexec

FreeBSDlua ("flua") is a FreeBSD-private lua, flavored with whatever
extensions we need for base system operations. We currently support a subset

Add flua to the base system, install to /usr/libexec

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

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