authenticate.c: seed gen_challenge() from /dev/urandom, add an "auth digest" floor
to refuse weak negotiated digests, and fstat the opened --password-file fd rather
than re-stat the pathname; checksum.c carries auth_digest_rank(). socket.c: reject
control bytes in the daemon host before a proxy CONNECT and bind the stunnel server
cert to the requested hostname. clientserver/access: warn when proxy-protocol
fail-closes. loadparm + daemon-parm: only shell-quote %RSYNC_*% for shell-executed
hooks, and add the auth-digest / proxy-protocol-hosts module parameters.
The code now derives all the struct defines, default value assignments,
parser-param defines, and lp_foo() accessor functions from a single list
of daemon parameters.
Andrew Tridgell