The sbbs_t::wordwrap[] buffer was 81 characters (80 printable characters, plus
NUL terminator) and sbbs_t.getstr(), when used with the K_WRAP mode flag could
potentially write more than 81 characters to this buffer (e.g. when using a
wider than 80 column terminal and writing a message with the internal line
editor which calls sbbs_t::getstr(... K_WRAP)) - would corrupt sbbs_t members
after wordwrap[], which included pointers that would be freed in the sbbs_t
destructor (~sbbs_t) and subsequently page/segfault as seen in issue #545.

This change increases the wordwrap buffer to likely twice the same needed
(maximum columns + NUL terminator) and adds wordwrap bounds checking to
sbbs_t::getstr().

There were comments indicating crash sightings in the sbsb_t destructor going
back to 2002, so this commit removes those comments.

Thanks to Nelgin for providing the gdb dump details ('print *this') that was
the clue needed to reach the root-cause determination.

This fixes issue #545.

Useful when debugging mail issues, e.g. with MIME-encoded mail

Fixes issue #544

Need to use this for creating nightly sbbs_src.tgz file

Also suppress the diff errors when the git_*.h files don't exist

DDMsgReader: Ctrl-C is now supported for message searches to abort the search.

See merge request !281

To be consistent with sbbs's utf8_normalize_str() function behavior.

MRC enhancements: Nicklist toggle, timestamps, and improved default alias

See merge request !280

Removed backup_level option from save_cfg()

This seems kind of circular doesn't it? Anyway, add a new SCFG->System->
Advanced->Configuration Backup option to set the number of config (.ini)
file backups to keep (default is 5).

Eliminate the scfg -b option (used to manually over-ride the default
backup level of 5).

Fix for issue #542

DDMsgReader: Added default color definitions for indexed reader mode in case they aren't specified in the theme .cfg file

See merge request !279

DDMsgReader: Added default color definitions for indexed reader mode in case they aren't specified in the theme .cfg file

DDMsgReader: Added "indexed" reader mode and made a fix to print utf-8 characters properly on non utf-8 terminals. Fixes issue #354 and issue #541

Closes #354 and #541

See merge request !278

DDMsgReader: Added "indexed" reader mode and made a fix to print utf-8 characters properly on non utf-8 terminals. Fixes issue #354 and issue #541

Added key buffer flush to prevent auto skipping prompts. Version updated to 1.1.

See merge request !277

When multiple servers are recycling at the same time, (e.g. due to saved
change in SCFG) they'd each call sbbs_read_ini() with a shared global_startup
struct, which in turn calls sbbs_free_ini(), which would free all the
allocated network interface lists (including the global_startup one) using
iniFreeStringList (just a wrapper for strListFree), but iniFreeStringList()
does NOT modify (NULLify) the freed-pointer, so your second or third server
that called sbbs_read_ini(), with the shared MainForm->global structure, would
*again* free the same global interface list. This bug actually has always
existed because get_ini_globals() freed the global interface list in the same
way, except it *immediately* re-allocated a new one by calling
iniGetStringList(), so the time window (opportunity) for this race condition
to occur was much smaller. Truly, SBBSCTRL should use a mutex or other
mechanism to protect the shared global_startup struct, but this is a first
step to a full fix: sbbs_free_ini() should (and now does) nullify the freed
network interface pointers by using strListFree() directly. I haven't been
able to reproduce the crash upon recycle in SBBSCTRL after making this change.

MRC client updates for Synchronet

See merge request !276

warning: format not a string literal and no format arguments

Weird this warning is happening for me with GCC 12.2 (debug or release build)

Apple Mail apparently uses tabs to indent the charset of nested MIME parts:

e.g.
--Apple-Mail-143B9F0C-6BB4-4C8E-869B-6DE05D6B58CE
Content-Type: text/plain;
<tab>charset=utf-8
Content-Transfer-Encoding: quoted-printable

This fixes issue #483 reported by Nelgin

Error: can't covert options.backup_level to an integer

Default to 10, if not set.

Looks like a typo, in Scan_For_Banned_Clients()

Fix issue #536

Ugh. This is ugly.

smtp_netmail_addr() - not currently used anywhere else, but may be someday.
load/mailutil.js's fidoaddr_to_emailaddr() has this same logic (for FTN addrs
at least and is now used by nntpservice.js).

Also, always pass a buffer to smb_faddrtoa() from the mail server since it's
multi-threaded and its unsafe to pass NULL (using a static local buffer).

smb_faddrtoa() uses a static local buffer if passed NULL and we shouldn't be
doing that from multi-threaded callers.