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What's this?

This fork of openssh-portable is a slightly polished version of the PowerShell (i.e. Microsoft) port of openssh-portable proper.

Our approach is to introduce as few changes as possible, however some have been dictated by the environment we are targeting (building with CLang-backed MinGW for armv7/Windows RT).

Changes

• Meson build system (rather than a Visual Studio solution). Minor (and mostly uniform) changes in include paths.
• OpenSSL (as it is readily available in our distro) rather than LibreSSL.
• The implementation of arc4random (notably, arc4random.c), mutilated to death in the PowerShell port, has been resuscitated and seems to work now.
• TBA

Zone Yellow

• No FIDO2 and no hardware security support (USB dongles / NFC smart cards). That's a wholly separate dependency graph to bring in, and it's not within our (chiefly, in-lab on-device deployment and debugging) use cases impatiently waiting for a minimal working SSH port.
• Unreformed calls to fork() (stubbed to "fail always") remain on the following execution paths:

1. ssh.c — control_persist_detach (ssh -f)
2. sshconnect.c — ssh_proxy_fdpass_connect (ProxyCommand in ssh_config)
3. sshconnect.c — ssh_local_cmd (PermitLocalCommand in ssh_config)
4. sshconnect2.c — ssh_keysign (backed by /usr/libexec/ssh-keysign and seemingly unsupported)