Alyssa Ross <hi@alyssa.is> writes:

> This series breaks vsockserver apart into two smaller programs,
> vsockserver-socketbinder and vsockserverd.  vsockserver-socketbinder
> binds and listens on an AF_VSOCK socket and then execs into another
> program with the socket as stdin.  vsockserverd accepts connections to
> a socket provided on stdin, and for each connection runs a program
> with the connection socket on stdin and stdout.  vsockserver is
> replaced with a program that builds an argv that just combines these
> two smaller programs and execs into it.
>
> This design is based on s6[1]'s s6-ipcserver,
> s6-ipcserver-socketbinder, and s6-ipcserverd programs.
>
> [1]: https://skarnet.org/software/s6/
> [2]: https://skarnet.org/software/s6-rc/
>
> Alyssa Ross (7):
>   vsock: get cid and port instead of just cid
>   vsock: check socket family before reading sockaddr
>   vsockserver: switch to a non-blocking socket
>   configure: create, to generate config.h
>   log: add die function
>   exec: add execzp()
>   Extract vsockserver-socketbinder and vsockserverd
>
>  .gitignore                      |   7 +-
>  Makefile                        |  33 --------
>  Makefile.in                     |  47 +++++++++++
>  configure                       |  49 ++++++++++++
>  exec.c                          |  22 +++++
>  exec.h                          |   7 ++
>  log.c                           |  10 +++
>  log.h                           |   8 +-
>  vsock.c                         |  32 ++++++--
>  vsock.h                         |  14 +++-
>  vsockserver-socketbinder.c      |  86 ++++++++++++++++++++
>  vsockserver.c                   | 137 +++++++++++++++-----------------
>  vsockserver.c => vsockserverd.c |  73 +++++++++--------
>  13 files changed, 368 insertions(+), 157 deletions(-)
>  delete mode 100644 Makefile
>  create mode 100644 Makefile.in
>  create mode 100755 configure
>  create mode 100644 exec.c
>  create mode 100644 exec.h
>  create mode 100644 vsockserver-socketbinder.c
>  copy vsockserver.c => vsockserverd.c (55%)
>
> -- 
> 2.30.0

Whoops, I messed up the threading.  Implementation begins here:
https://spectrum-os.org/lists/archives/spectrum-devel/20210319025648.17925-1-hi@alyssa.is/