(e.g. "<service> connection accepted from: <ip_addr> port <num>").
Some strcpy->SAFECOPY, sprintf->SAFEPRINTF replacements for good measure.

(i.e. posted to yourself). It's confusing when testing the scan for messages
"to you" if messages also *from* you aren't listed. :-)

Don't allow the use of -if, -ix, -ic options when not a *nix build.

terminal width) - only used when the QUOTEWRAP option is set. Common values:
0 - current behavior, wrap the quote file to the current terminal width
80 - wrap 80 columns specifically (actually, 79)
9999 - unwrap to long lines (one line per paragraph)

terminal width) - only used when the QUOTEWRAP option is set. Common values:
0 - current behavior, wrap the quote file to the current terminal width
80 - wrap 80 columns specifically (actually, 79)
9999 - unwrap to long lines (one line per paragraph)

Actually, previously it was wrapping to current terminal width minus 4 when
QUOTEWRAP was enabled. Now, make that current terminal width minus 1
(when quotewrap_cols is set to 0).

When responding to AreaFix requests, it's normal for create_netmail() to be
called with a NULL 'msg' argument value - so don't try to dereference it
(for the "cols" header field value) if it's NULL. Thanks to Mark Lewis for the
bug report.

(default: off) - when enabled, the current terminal width (columns) will be
saved in the msg header.
When using the internal msg editor or raw intput mode, the columns are always
saved in the message editor. fseditor.js should have this option enabled.
In SCFG, this option is called "Record Terminal Width".

(default: off) - when enabled, the current terminal width (columns) will be
saved in the msg header.
When using the internal msg editor or raw intput mode, the columns are always
saved in the message editor. fseditor.js should have this option enabled.

MIME-encoded/embedded attachments.
We probably will want to do this for SMTP-posted messages (to subs) too.

don't care about filenames.
smb/mime_getattachment() now supports filenames with spaces in them. If we need
to strip or convert to short filenames, do that in the application/script code,
not in smblib.

indicate that a message's body text contains one or more MIME-encoded/embedded
attachments - so that entities won't have to parse the message headers/body
to determine whether or not a message has MIME-attachments.

*_net_type hfield has a value of 0 (NET_NONE) - according to smbdefs.h.

console.msghdr_top_of_screen):
a hack to let scripts know whether the most-recently displayed message header
was displayed on the top of the terminal screen (or not). This allows us to
show avatars at the top of the screen when the header is up there, rather than
relevative to the bottom of the header (the pos can vary, depending on stuff).

strrchr() here to find terminating chars (quotes, parens, brackets).
e.g. '"Joe Shmoe" <joe@shmoe.com>, "Fred Smith" <fred@smith.org>'
would be parsed as 'Joe Shmoe" <joe@shmoe.com>, "Fred Smith'.

'data_length', but not always (e.g. may include text from some header
fields, excludes any non-text data fields).
Mark 'data_length' msg header property as read-only.

back in 1993, but were never needed/used.

header fields. Eliminate smb_getcontenttype() - now unnecessary.

the string being passed around.

or NULL if not relevant (not a MIME-encoded message).
Added smb_countattachments(): returns the number of file attachments in a
MIME-encoded message.
Added SMBMSGTXT_NO_TAILS definition to be used in place of '0' for
common smb_getmsgtxt() mode argument value.
The amount of white-space after "Content-Type:" and the content-type value
is now more flexible (0 or +1 spaces/tabs are fine).

sendfile() no longer logs "attachment" when a file description is provided.

download_file_attachments() and expose via new JS "bbs" method. Currently
this only reall works for the mail base.

since the smb_t already contains a subnum and we were passing a pointer to the
sbbs_t::smb to lower-level called-functions anyway.
Let's not mix-up class-scope with function arguments.

Fix the missing carriage-returns in the shell (bash) prompts by always building with the stderr logging
support (in *nix builds) - but run-time disable as desired via EX_NOLOG option. I've been wanting to get
rid of that "XTERN_*" macro for a long time anyway (it's "XTRN" damn-it!). :-)