The callback from libgit2 only provides a hostname (without the port),
but the `known_hosts` file indexes the public keys based on the full
host (e.g. `[localhost]:123` for a host behind a specific port).
As a result, it was unable to find the correct public key for the
hostname when it was added to the `known_hosts` file with the port.
To work around this, we add the user provided host that includes the
port to the `PublicKeyAuth` strategy, and use this to find the right
entry in the `known_hosts` file, after having validated that the
hostname provided to the callback matches the hostname of the host
provided by the user.
Signed-off-by: Hidde Beydals <hello@hidde.co>
Philip Laine
Hidde Beydals