luad, branch HEAD

move check for full peer table

2026-06-01T14:51:38Z

commit f2b13bc34cbf2f7b2ef9ee54a31b6d2c411c7ccc parent 3e8640e54f5515974675d1ccc1e92d06f94d831d Author: Daniel Barlow Date: Mon, 1 Jun 2026 15:51:38 +0100 move check for full peer table if we can't accept any more connections, don't poll the socket

swap pollfds order

2026-06-01T13:40:51Z

commit 3e8640e54f5515974675d1ccc1e92d06f94d831d parent 12c7abd3b0299395bb5071cf9313cf45ac896cdb Author: Daniel Barlow Date: Mon, 1 Jun 2026 14:40:51 +0100 swap pollfds order

if message exceeds buffer size, disconnect instead of running lua

2026-06-01T13:11:45Z

commit 12c7abd3b0299395bb5071cf9313cf45ac896cdb parent 0d7dfa957070d4c6311472f595846d36873befc3 Author: Daniel Barlow Date: Mon, 1 Jun 2026 14:11:45 +0100 if message exceeds buffer size, disconnect instead of running lua

-Wall -Werror

2026-05-26T18:41:13Z

commit 0d7dfa957070d4c6311472f595846d36873befc3 parent ae1e109cd1b54ec7c91d2e0d1aa25808f339b2dd Author: Daniel Barlow Date: Tue, 26 May 2026 19:41:13 +0100 -Wall -Werror

remove unused variable

2026-05-26T18:18:57Z

commit ae1e109cd1b54ec7c91d2e0d1aa25808f339b2dd parent cbdd65ecdaec1458d19365962dbe401c4fa3cc17 Author: Daniel Barlow Date: Tue, 26 May 2026 19:18:57 +0100 remove unused variable

remove useless check for fd > 0

2026-05-26T18:14:58Z

commit cbdd65ecdaec1458d19365962dbe401c4fa3cc17 parent 0e03b0a763b24a63b8f41aff5e28318e0ee8e57c Author: Daniel Barlow Date: Tue, 26 May 2026 19:14:58 +0100 remove useless check for fd > 0 we can't even be here if the fd is not valid

print error if garbage received from client

2026-05-26T18:14:04Z

commit 0e03b0a763b24a63b8f41aff5e28318e0ee8e57c parent 2fea793900d4a0fbfe3fb292bdfa759599341e81 Author: Daniel Barlow Date: Tue, 26 May 2026 19:14:04 +0100 print error if garbage received from client

remove fork_lua return value check

2026-05-26T18:09:43Z

commit 2fea793900d4a0fbfe3fb292bdfa759599341e81 parent 1b018b3db487aa68b89af5e459fa64ece8c24f96 Author: Daniel Barlow Date: Tue, 26 May 2026 19:09:43 +0100 remove fork_lua return value check as it dies on failure anyway

check recvmsg return

2026-05-26T18:08:34Z

commit 1b018b3db487aa68b89af5e459fa64ece8c24f96 parent adf7f542bb09d6cb4fe4417ae97b50ae4f558b21 Author: Daniel Barlow Date: Tue, 26 May 2026 19:08:34 +0100 check recvmsg return

check for total fds passed inc. previous cmsgs

2026-05-26T18:08:12Z

commit adf7f542bb09d6cb4fe4417ae97b50ae4f558b21 parent a820bbf9330bc46238b6d284a90e8ac88f9691de Author: Daniel Barlow Date: Tue, 26 May 2026 19:08:12 +0100 check for total fds passed inc. previous cmsgs

verify we get exactly 3 fds from client

2026-05-19T20:50:02Z

commit a820bbf9330bc46238b6d284a90e8ac88f9691de parent 7e123822485df1e01abf2a698f10b21540f4c24e Author: Daniel Barlow Date: Tue, 19 May 2026 21:50:02 +0100 verify we get exactly 3 fds from client

why do we return NULL

2026-05-19T20:32:39Z

commit 7e123822485df1e01abf2a698f10b21540f4c24e parent 59da5998b89b8c1aa724dad0eecd0b444af11fdc Author: Daniel Barlow Date: Tue, 19 May 2026 21:32:39 +0100 why do we return NULL

don't leak passed fds in parent

2026-05-19T20:32:24Z

commit 59da5998b89b8c1aa724dad0eecd0b444af11fdc parent 20bf3b8fba247b300b1cc92093c735f0cf184d56 Author: Daniel Barlow Date: Tue, 19 May 2026 21:32:24 +0100 don't leak passed fds in parent

allocate peer_fds on stack

2026-05-19T20:30:37Z

commit 20bf3b8fba247b300b1cc92093c735f0cf184d56 parent a0a8bd0de4d55c3e0a8f419ef72023d0082c1bba Author: Daniel Barlow Date: Tue, 19 May 2026 21:30:37 +0100 allocate peer_fds on stack

hardcode 3 fds

2026-05-19T20:27:02Z

commit a0a8bd0de4d55c3e0a8f419ef72023d0082c1bba parent d5c2503150f2b65d666b93240346a5a3ba6901ff Author: Daniel Barlow Date: Tue, 19 May 2026 21:27:02 +0100 hardcode 3 fds

note the (unfulfilled) requirement for fds_from_msg

2026-05-19T20:26:30Z

commit d5c2503150f2b65d666b93240346a5a3ba6901ff parent cafb33d5f0b5eedac444e410fa2ae1e500e7c6ea Author: Daniel Barlow Date: Tue, 19 May 2026 21:26:30 +0100 note the (unfulfilled) requirement for fds_from_msg

die

2026-05-19T20:21:56Z

commit cafb33d5f0b5eedac444e410fa2ae1e500e7c6ea parent eaede95bac98194a74eae342aabd6046117584a6 Author: Daniel Barlow Date: Tue, 19 May 2026 21:21:56 +0100 die

check malloc failure

2026-05-19T20:21:45Z

commit eaede95bac98194a74eae342aabd6046117584a6 parent 0b9189a4129049050ac801418d6c2d9754a27a55 Author: Daniel Barlow Date: Tue, 19 May 2026 21:21:45 +0100 check malloc failure

off-by-one

2026-05-19T16:59:25Z

commit 0b9189a4129049050ac801418d6c2d9754a27a55 parent 3788f97dbf79bcfe2989577afecc418aeb0c9cfd Author: Daniel Barlow Date: Tue, 19 May 2026 17:59:25 +0100 off-by-one

whitespace

2026-05-19T16:58:51Z

commit 3788f97dbf79bcfe2989577afecc418aeb0c9cfd parent 1d1b986e6d3578db533c06db563c7573a2d74f23 Author: Daniel Barlow Date: Tue, 19 May 2026 17:58:51 +0100 whitespace

check for space in peers table before accepting new request

2026-05-19T16:58:12Z

commit 1d1b986e6d3578db533c06db563c7573a2d74f23 parent f7ef74ea057fd903d52f80beb61e374e63819093 Author: Daniel Barlow Date: Tue, 19 May 2026 17:58:12 +0100 check for space in peers table before accepting new request

apparently C has booleans now

2026-05-19T16:57:49Z

commit f7ef74ea057fd903d52f80beb61e374e63819093 parent e2685769d04bd7c2f92255e5744d6cdee161e95e Author: Daniel Barlow Date: Tue, 19 May 2026 17:57:49 +0100 apparently C has booleans now

make the peers table a global

2026-05-19T16:54:36Z

commit e2685769d04bd7c2f92255e5744d6cdee161e95e parent 262fc6437c1f1ca2c1bb08da00d9ff8b5ed54efd Author: Daniel Barlow Date: Tue, 19 May 2026 17:54:36 +0100 make the peers table a global less complicated when the size is known at compile time

die with sensible error message if socket path too long

2026-05-18T22:26:48Z

commit 262fc6437c1f1ca2c1bb08da00d9ff8b5ed54efd parent 9569ba3cfa0614ffd9921de81144604e5f343ccb Author: Daniel Barlow Date: Mon, 18 May 2026 23:26:48 +0100 die with sensible error message if socket path too long

update README

2026-05-18T22:21:13Z

commit 9569ba3cfa0614ffd9921de81144604e5f343ccb parent 79313f1d5565009a608160e0aa830fa12be97c73 Author: Daniel Barlow Date: Mon, 18 May 2026 23:21:13 +0100 update README

consult env var to find socket path

2026-05-18T22:04:38Z

commit 79313f1d5565009a608160e0aa830fa12be97c73 parent a0e760884db30436f22323e87ec858db8d3df284 Author: Daniel Barlow Date: Mon, 18 May 2026 23:04:38 +0100 consult env var to find socket path

improve error reporting

2026-05-18T22:04:23Z

commit a0e760884db30436f22323e87ec858db8d3df284 parent 4a7fc4570466569a9486bc84d87516ab6a133a3f Author: Daniel Barlow Date: Mon, 18 May 2026 23:04:23 +0100 improve error reporting

wait for server to send script's exit status

2026-05-18T20:58:01Z

commit 4a7fc4570466569a9486bc84d87516ab6a133a3f parent e2a87ea5c9097fe26f9213a82f00e2338e92bd2b Author: Daniel Barlow Date: Mon, 18 May 2026 21:58:01 +0100 wait for server to send script's exit status

use static initaliser for msg

2026-05-18T20:12:15Z

commit e2a87ea5c9097fe26f9213a82f00e2338e92bd2b parent 7a567117e16152d00120afd901cd87b90f66934c Author: Daniel Barlow Date: Mon, 18 May 2026 21:12:15 +0100 use static initaliser for msg

tidy up open_socket and explain need for abstract bind

2026-05-18T20:11:25Z

commit 7a567117e16152d00120afd901cd87b90f66934c parent d286b82eba1028731b80d1b1610aca9739ae1634 Author: Daniel Barlow Date: Mon, 18 May 2026 21:11:25 +0100 tidy up open_socket and explain need for abstract bind

add luac to makefile

2026-05-18T19:52:12Z

commit d286b82eba1028731b80d1b1610aca9739ae1634 parent 05d083d5b5cae5ea191b710175786ca256d2ed9b Author: Daniel Barlow Date: Mon, 18 May 2026 20:52:12 +0100 add luac to makefile

no need to call access() here

2026-05-18T19:01:42Z

commit 05d083d5b5cae5ea191b710175786ca256d2ed9b parent 7fdcc89ec178dd27d33629e301189d5d2d353e6f Author: Daniel Barlow Date: Mon, 18 May 2026 20:01:42 +0100 no need to call access() here lua will report an error if the file is not found anyway

WIP luac C translation

2026-05-17T22:57:42Z

commit 7fdcc89ec178dd27d33629e301189d5d2d353e6f parent e3bf89dcdf6588076e04a66bbb150671c84b0854 Author: Daniel Barlow Date: Sun, 17 May 2026 23:57:42 +0100 WIP luac C translation TODO wait for server to send script exit value

delete rust stuff and add a Makefile

2026-05-17T19:38:04Z

commit e3bf89dcdf6588076e04a66bbb150671c84b0854 parent 7c33ceadf4465652dccd2fdac6753a44957b3d9a Author: Daniel Barlow Date: Sun, 17 May 2026 20:38:04 +0100 delete rust stuff and add a Makefile

remove unused python from rustup shell

2026-05-08T12:26:42Z

commit 7c33ceadf4465652dccd2fdac6753a44957b3d9a parent 9b7832a44d2e19ea39b249287ca0c872246366dc Author: Daniel Barlow Date: Fri, 8 May 2026 13:26:42 +0100 remove unused python from rustup shell

WIP rewrite in C

2026-05-14T22:20:11Z

commit 9b7832a44d2e19ea39b249287ca0c872246366dc parent 713d30f9a2f42bcc43c7f5bba53d962fcba207cf Author: Daniel Barlow Date: Thu, 14 May 2026 23:20:11 +0100 WIP rewrite in C $ ls -l result/bin/luad src/luad -r-xr-xr-x 1 root root 415032 Jan 1 1970 result/bin/luad -rwxr-xr-x 1 dan users 21872 May 14 23:18 src/luad it's difficult to argue against that size saving, and we weren't doing much except calling libraries written in C anyway this is WIP as in it's functional mostly but it's a first pass, may contain bugs, needs lint, hardcodes the socket path

fix most compiler warnings

2026-05-13T18:06:38Z

commit 713d30f9a2f42bcc43c7f5bba53d962fcba207cf parent 0a5d7f83f6a30637cb39d539142e59f8dde985b6 Author: Daniel Barlow Date: Wed, 13 May 2026 19:06:38 +0100 fix most compiler warnings

remove fork and nix crates, use libc directly

2026-05-13T18:02:48Z

commit 0a5d7f83f6a30637cb39d539142e59f8dde985b6 parent 4370b6ea999223409870a161cc0c6c28bd50cdfc Author: Daniel Barlow Date: Wed, 13 May 2026 19:02:48 +0100 remove fork and nix crates, use libc directly doesn't seem to make any difference to binary size?

luad allow preloading lua in parent process

2026-05-13T16:56:39Z

commit 4370b6ea999223409870a161cc0c6c28bd50cdfc parent 73efb4223387a64ae11490648b51c632a98e4737 Author: Daniel Barlow Date: Wed, 13 May 2026 17:56:39 +0100 luad allow preloading lua in parent process if you have libaries that you require in every lua script, you can use this to load them when luad starts so that they are already there (and maybe sharing ram?) when clients connect.

new file

2026-05-11T06:32:10Z

commit 73efb4223387a64ae11490648b51c632a98e4737 parent 15aad21535c9c627b87a4e7c3b7481a4aee8c613 Author: Daniel Barlow Date: Mon, 11 May 2026 07:32:10 +0100 new file

add README

2026-05-08T22:27:00Z

commit 15aad21535c9c627b87a4e7c3b7481a4aee8c613 parent 9d91c35caed66a8c6e5b6f3f93a07833e8936861 Author: Daniel Barlow Date: Fri, 8 May 2026 23:27:00 +0100 add README

set up arg array in lua

2026-05-08T22:04:02Z

commit 9d91c35caed66a8c6e5b6f3f93a07833e8936861 parent 56c7d48e654fe00e1e118a7c91a9fb91fc813456 Author: Daniel Barlow Date: Fri, 8 May 2026 23:04:02 +0100 set up arg array in lua

remove hard tabs

2026-05-08T21:33:15Z

commit 56c7d48e654fe00e1e118a7c91a9fb91fc813456 parent 4c22cfbe0f69a854cfb8a24649c3d95fe0a3ba39 Author: Daniel Barlow Date: Fri, 8 May 2026 22:33:15 +0100 remove hard tabs

decruft

2026-04-30T20:41:50Z

commit 4c22cfbe0f69a854cfb8a24649c3d95fe0a3ba39 parent f0f7f5d9fa9015558a967bdb06952929109355c8 Author: Daniel Barlow Date: Thu, 30 Apr 2026 21:41:50 +0100 decruft

pass lua exit status or signal to client

2026-04-30T20:41:36Z

commit f0f7f5d9fa9015558a967bdb06952929109355c8 parent 9f0450b2dd0e2ec5670aa96278d7a3a843985b39 Author: Daniel Barlow Date: Thu, 30 Apr 2026 21:41:36 +0100 pass lua exit status or signal to client

wait for lua child to exit before client exits

2026-04-30T19:41:57Z

commit 9f0450b2dd0e2ec5670aa96278d7a3a843985b39 parent 40ae833af3411497de25e68cab0222a3256ec0be Author: Daniel Barlow Date: Thu, 30 Apr 2026 20:41:57 +0100 wait for lua child to exit before client exits * handle sigchld with the self-pipe trick * use libc bindings to poll() to watch that and the socket simultaneously

client: bind socket to abstract name before connect

2026-04-30T19:40:02Z

commit 40ae833af3411497de25e68cab0222a3256ec0be parent 8dbe90e0ad291d83c56e6a1a7081701dfcba22f8 Author: Daniel Barlow Date: Thu, 30 Apr 2026 20:40:02 +0100 client: bind socket to abstract name before connect it seems that the server can't sendto() an unbound peer

parse the datagram payload and fork lua on the file

2026-04-29T20:25:34Z

commit 8dbe90e0ad291d83c56e6a1a7081701dfcba22f8 parent a747b0c8d3871483ee64f865d57dc10ccd828ec0 Author: Daniel Barlow Date: Wed, 29 Apr 2026 21:25:34 +0100 parse the datagram payload and fork lua on the file

initial commit

2026-04-29T18:04:02Z

commit a747b0c8d3871483ee64f865d57dc10ccd828ec0 Author: Daniel Barlow Date: Wed, 29 Apr 2026 19:04:02 +0100 initial commit