string (now used by ctrl/NodeFormUnit.cpp and printnodedat).

validating parameters.
getnodedat() now closes the file if the record could not be locked/read.

statistics file (dsts.dab).

permanently locked under some circumstances on Win32.

Get rid of startup.h kludge but makeing YIELD() an empty macro in nopen and
getuserdat

are used by OS).

(skipping deleted or inactive user records).

node messages that must be freed by the caller (or NULL if no message).

get/put/adjustuserrec functions will not auto-determine the record length if
passed 0 for the length.

handled by newuserdat() instead of sbbs_t::logoffstats(), so the SS_NEWUSER
sys_status bit has no internal use (but is still set). This change increments
the new user counter sooner (at account creation, rather than logoff) and
includes calls to the system.new_user() method in the stats.

variants (gmtime_r, localtime_r, and ctime_r) for thread-safe operation on Unix

outside the sbbs_t class).

Copied printnodedat() function from node.c (with mod to print user names).

bcc/linux sopen/lock to succeed.

putnodedat() doesn't need to lock record (already locked by getnodedat).

GMT/UTC.