resolve the resulting warnings.

and send_mlsx().
Fix numerous printf-style argument bugs, many in the TLS and MLSx support.

Put "TLS" in the failure log messages rather than repeating "FTP".

Was this pasted from somewhere else?

- Since rev 1.556, mailproc_to_match[] would only ever contain one mail
  processor (index) value, even if the RCPT TO address matched multiple
  mail processor "To" keys in mailproc.ini, so only the first-matching
  mail processor (with a "To" key) would be executed for the msg.
- mailproc_match, meaning the destination was a non-passthrough
  external mail processor, in which case the destination (RCPT TO) address
  may *not* match a valid local user account, would be set for *passthru*
  mail processors potentially resulting in the following error (and an
  undelivered mail message): !SMTP can't deliver mail to user #0
  only set mailproc_match to a valid mail proc index if the recipient matches a
  non-passthru mail processor.

Windows debug build.

instead of stdout.

not known/available (e.g. certain types of SSH login failures).

to use this function in bbs_thread() for SSH failed login attempts and thus
enable the perm-IP-filtering (LoginAttemptFilterThreshold) functionality.
Right now, it's only a "bad login" if the "Getting channel type" doesn't
return "session", but we could (and likely will) use it for more SSH login
failure modes which indicate a likely hack-attempt.

description string ('node') in SSH-related log messages (e.g. errors) from the
output_thread: No more "Node 0" log entries from here.

    "Deprecated file open mode: 'e'"
If this is your script generating this warning, either remove the 'e' from
the File open() mode string (it had no effect anyway) or change to 'x' to
get the real/working exclusive-open functionality (added in v3.17).

(e.g. for a QNET hub or timed event).

simply ignored when converted to the underlying open mode passed to sopen().
Deprecate this flag and log a warning when it is detected as used in a script:
Deprecated open flag used: 'e'
Added 'x' (exclsuive-open) mode flag which:
1. was tested to work as intended
2. is consistent with the C11 standard for fopen() mode flags
3. won't cause existing scripts to suddenly break

these errors are coming from.

new user signup process with that name (just fall-through to a normal login
prompt).

(Argus and Mystic's BinkP mailers don't support encryption).

if it didn't already exist.

Created struct fidoaddr (5D address), though it's only used (so far)
in pktdump.c - doesn't really need to be packed.

If you're not using BinkIT (you're using some other FidoNet mailer), you can
safely ignore all the settings/options.
A lot of the online help for the new settings/menus needs to be written
still and the wiki now needs a lot of update to reflect the changes.
The "title" of this program was changed, again, from "SBBSecho Config" to
"[Synchronet] FidoNet Config" since it configures more than just SBBSecho
now.

(e.g. "Zones=1,2,3,4,5,6").

if the thread returns before js_initcx() is called.

discard).
Also, trim trailing white-spaces.

sdl_con.c: In function ‘sdl_mouse_thread’:
sdl_con.c:1424:1: warning: no return statement in function returning non-void

channel we ignore/close, we would get a separate warning for each chunk of
data on that channel until we read past the close.  Instead, if we're closing
a channel, we note the channel ID, and simply discard the information
immediately on the most recently closed channel.

A remote could still cause a bunch of log output by multiplexing two or more
writes to invalid channels, but nobody seems to do that, so this should be
good for now.

syncprog and the commit log again).

of the #if !NO_SOCKET_SUPPORT block. Fixes Windows build of addfiles
and other utils.