- enlarge buffer to avoid snprintf() truncation

reinstate NULL cast by request, where the NULL was being passed as a vararg

NULL does not need a cast

Fix up still more casts; use NULL instead of (char *)0.

sprinkle static

Fix two serious string-handling bugs (one exploitable, one probably
exploitable) and also add proper checking/paranoia in several other
places.

sprintf -> snprintf, plus some use of strlcpy/strlcat where appropriate
XXX: there's still one sprintf left which will take some hacking to expunge.

ANSIfy function declarations. All object file diffs inspected.

Change getdate() to getdatestr() since the former maybe present on systems
supporting X/Open System Interfaces Extension (XSI) getdate() in <time.h>.
This prevents a function prototype conflict.

branches: 1.9.16; 1.9.26; 1.9.38; 1.9.40; 1.9.42;
Hack is now BSD-licensed. Thanks to Andries Brouwer, Jay Fenlason and
CWI <http://www.cwi.nl/~aeb/games/hack/hack.html>. Via OpenBSD.
Addresses part of PR bin/5850.

Make mostly gcc -W clean, and other cleanup:
Use const.
Add __noreturn__ attributes.
Add a __format__ attribute.
Add __unused__ attributes.
Use symbolic constants for open() and lseek().
Declare types of all function parameters; convert some function
definitions to ISO C form.
Ensure standard file descriptors are open on startup.
Check for errors writing output of makedefs.
Avoid duplicate definitions of variables.

fix redundant decls and nested externs. while I am here change my copyright
to TNF.

Fix Y2K buffer overflow (from OpenBSD).

branches: 1.5.4;
WARNsify...

Removed "extern int errno"; Added #include <errno.h> if not already present.

merge with Lite, new RCS id conventions, etc.

Add RCS identifiers, remove some completely useless RCS logs and patchkit
headers, and a few other insignificant changes.

branches: 1.1.1;
Initial revision