CVS log for epic4/source/ssl.c

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Another merge.

Yikes.  Merged to become consistent with HEAD.  Sorry for all the commits,
I'll be quiet again soon. :)
-wd

* Remove colon at end of RETURN_MSTR so it is like others.
* Unify dgets() and SSL_dgets()
* Add a 4th argument to dgets(), an (SSL *) for ssl reads, NULL for normals
* Integrate SSL stuff more tightly by removing unecessary #ifdef's
* Change 'enable_ssl' to 'try_ssl' to avoid confusion with 'ssl_enabled'
* Remove uneccesary members of (Window)
* #include "functions.h" in any file implementing built in functions.
* panic if ssl op attempted on non-ssl connection.
* Don't call functions in RETURN_* macros. (they're evaled twice)
* Nuke #ifdef 0'd uses of 'ceiling_of_display'

Update copyright notices and copyright dates.

* Applied Ay-Ars SSL patch:
  * Copyright notices added to ssl code files.
  * --ssl-ver switch removed (configure script hasn't been rebuilt).
  * Code changes/cleanups which I haven't checked, but which seem to work
    well.
  * Documentation changes.
* Fix for a memory leak in foreach when continue or break are used.
* Moved the server_established hook into register_server so that it is not
  triggered when an unsuccessful attempt to connect is made.
* Feeble stab at fixing an intermittent server related coredump.
* Cleaned commandqueues script up a bit.

Remove a // comment in ssl.c -- C90 (which we target) doesn't have that.
Document the rest of the stuff that's changed in KNOWNBUGS.

Bulk commit:
1) Fix typos in KNOWNBUGS
2) Flesh out the things in UPDATES that need documenting
3) Add target_file_write() to files.[ch] for send_text()'s use.
4) Create "reg.h", to hold protos for reg.c
5) Add some missing protos.
6) If /redirect'ing to 0 or to @<fd>, don't output to the screen.
7) Messages sent to target 0 are dropped (/redirect 0 now actually sends
   to target 0, and epic drops it.)  You can /query 0 now if you want.
8) Messages sent to @NUMBER get sent to the NUMBER file, where NUMBER is
   returned by $open().  For example, to paste stuff to log but not to screen:
        @fd = open(FILE w)
        query @$fd
        <paste some stuff>
        query
        @close($fd)
   or
        @fd = open(FILE w)
        redirect @$fd lastlog foo
        @close($fd)
9) Add a function to reg.c to compile a pattern into a regex -- experimental.
10) Fix some compile warnings regarding ssl.

Applied the SSL patch from ay-ar.

Details are in README.SSL.  This works well at this point, but there may
be teething problems.