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srogue: prevent overflowing the score file name. If SCOREFILE is not defined, roguehome() is called to find a directory for the score file. It copies up to PATH_MAX-20 bytes from an environment variable to a static buffer. Later these are strcpy()'d to scorefile, which is of size LINLEN. Unfortunately LINLEN is 80 and PATH_MAX is at least 256. On Linux, it happens to be 4096. I haven't yet managed to crash or exploit it, but there are surely no beneficial consequences, so roguehome() has been modified to check the length, and the string it returns is also checked in main().
author John "Elwin" Edwards
date Sun, 02 Aug 2015 12:14:47 -0400
parents c191a735f811
children
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		       Roguelike Gallery (rlgallery.org)

This is the source code for the Roguelike Gallery's version of Rogue V4.

History
Rogue 4.2 was released by Michael Toy, Ken Arnold, and Glenn Wichman, probably 
early in 1982.  Several updates were issued, and the major version number was 
incremented, so the last of the series was Rogue 5.2, released April 1982.

The Roguelike Restoration Project (rogue.rogueforge.net) updated the game to 
work on modern systems.

The Roguelike Gallery's version has been slightly modified for compatibility 
with dgamelaunch and security for multiple players.

Installing
On Unix, you can use the "./configure && make && make install" method.  If
you don't need a system-wide installation, you should be able to ignore all 
the options for "configure" and leave off the "make install".

If you want multi-user play, run configure with the proper options ("configure
--help" will explain what they do.)  The important ones are savedir (where
saved games are stored), scorefile (the high score list), and logfile (the log
of all games played).  You should probably also use '--enable-setgid=games' and 
'--disable-lockfile'.

On Windows, I haven't tested the Visual Studio project files; the game should
build, but the scorefile might not work. 

Playing
For more details, see rogue4.6 (the man page) and rogue4.me (Michael
Toy's "Guide to the Dungeons of Doom").  Troff format is a little outdated, but
you should be able to discover something with a text editor.  I plan to add
versions in more common formats soon.

Contact
rlgallery.org admin: John "Elwin" Edwards <elwin@sdf.org>