Four complaints, and only one of them was the thing it looked like.
**"toybox is too small."** Half true, and the fix cost no licensing at all:
236 of toybox's applets are what defconfig builds, and the rest live in
toys/pending/ -- awk, bc, diff, more, expr, tr, hexdump, stty among them. Same
0BSD tarball, switched off by a config default. 26 of them are on now, 236 ->
268. Not everything: strace wants ptrace, syslogd wants BSD's facilitynames[],
git wants OpenSSL, and those three break the link.
The toybox build also works again on this machine. Its scripts start
#!/bin/bash, which does not exist on NixOS, so the binary in the tree was one
nobody could reproduce; the shebangs are rewritten to /usr/bin/env bash on the
way in. Pending applets are enabled by editing .config directly, because
`make oldconfig` is the obvious way and undoes it -- every pending symbol is
`default n`.
**BusyBox was asked for and is not here.** It is GPL-2.0-only, and `make
ramroot` links the root image *into the kernel binary*, so it would put GPLv2
inside an Apache-2.0 executable -- which is the exact case ports/Makefile's
NOTPORTS filter and docs/licensing.md §4 exist for. nano is the same answer one
version later. Both recorded in licensing.md with what was done instead, since
"no" without an alternative is how a rule gets quietly broken later.
**An editor that is not vi.** kilo, BSD-2-Clause, one 1300-line file, no
dependencies beyond termios and TIOCGWINSZ, both of which zsh already needed.
Installed as /bin/edit as well as /bin/kilo, because somebody with a file to
fix will type `edit`.
**"wget doesn't work."** Not a userland problem, and BusyBox's wget would have
failed identically: nothing on this system could turn a name into an address,
so every program taking a hostname failed in its own way and each looked like
a separate bug. There is still no DNS client in SchOS and there does not need
to be -- musl has a complete resolver and it works over ordinary UDP sockets.
The one missing fact was which nameserver, which the kernel has had all along
from DHCP and never published. /proc/resolv.conf publishes it in resolv.conf's
exact syntax; cmd/resolvconf decides whether it becomes /etc/resolv.conf, and
will not overwrite a hand-written one without -f.
# wget -O - http://example.com/ | head -1
<!doctype html><html lang="en"><head><title>Example Domain</title>
**Something to host with.** cmd/httpd: GET and HEAD, static files, index.html
for a directory and a listing otherwise, a child per connection. No CGI, no
keep-alive, no TLS, no config file. The path check is the only
security-relevant code in it and it refuses rather than normalises -- no
component may be `..`, and percent-decoding happens first, because %2e%2e is
`..` and a check before decoding does not see it. Both forms answer 403.
And the disk is 100 MB, from 32. It is sparse, so the image is 21 MB on the
host. RAMDISK_BLOCKS went 6000 -> 8000 with it: the ramdisk was at 86% and the
next thing added would have broken `make ramroot`, which nobody would have
noticed until they used it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VQ7Qx8E1q1M1bbCq8QLHS2
Job manifests for schinit, SchOS process 1.
Every *.job file in this directory is loaded at boot. Format is sectioned
key = value; # starts a comment, keys are case-insensitive.
Label a reverse-DNS name, as launchd uses. Identity, not a path.
Program the binary to execute
Args argv, space separated. argv[0] is conventionally the
basename, so `Args = sh` for `/bin/sh`.
RunAtLoad start it when schinit loads
KeepAlive restart it when it exits
Disabled load it but do not start it
ThrottleInterval seconds between respawns (default 1)
StandardIn \
StandardOut > paths to open as fd 0, 1, 2
StandardError /
[Socket <name>]
Path a unix socket schinit will hold on the job's behalf and
start the job on first connect
A KeepAlive job that exits with status 78 (sysexits.h's EX_CONFIG) is not
restarted, and schinit says which job stopped and that it stopped on purpose.
This is for a program that has looked at the machine and found nothing here it
can run against -- a driver whose device is absent, say -- which would otherwise
report the same thing every ThrottleInterval for the rest of the uptime. A job
that was killed or crashed carries a signal in its status, never matches, and
comes back exactly as KeepAlive promises.
Socket sections are parsed but not yet acted on -- that is milestone 2, and
demand launching is the whole reason this is shaped after launchd rather than
sysvinit. The key exists now so manifests do not have to change later.
Unknown keys and unknown sections are ignored rather than fatal: a manifest
written for a newer schinit must not stop this one booting the machine.
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