Massive cleanup.
(send_contents): Remove incorrect optimization - restore even
empty lines because they may be touched by the viewer.
From Denis Vlasenko <vda_unique@iname.com>
len and vcs_name.
(check_file): Set console_minor to the minor device number of
the console. Disallow /dev/tty0.
(detect_console): Don't parse tty_name, instead make sure that
it corresponds to console_minor. Check console first. Fallback
to /dev/vcc/a* if /dev/vcsa* cannot be opened.
(save_console): Use console_minor.
(restore_console): Likewise.
allowed luser to write '\0' char to any symlinkable file in Linux
system which don't ensure that fd's 0, 1, and 2 are open on startup
of a SUID/SGID binary.
Based on patch from bugtrack by Maurycy Prodeus <z33d@ETH-SECURITY.NET>.
* cons.saver.c (main): dup2() may be interrupted; take this into
account. Do we need to fcntl() stderr, or is it enough to close()
it before recreating it?
Wed Jan 27 03:17:44 1999 Timur Bakeyev <mc@bat.ru>
* Converted memory managment to Glib. Now we use g_new()/g_malloc()/
g_strdup()/g_free() routings. Also, copy_strings() replaced by
g_strconcat(), strcasecmp() -> g_strcasecmp(),and sprintf() by
g_snprintf().
* Some sequences of malloc()/sprintf() changed to g_strdup_printf().
* mad.[ch]: Modified, to work with new GLib's memory managment. Fixed
a missing #undef for tempnam, which caused dead loop. Add several new
functions to emulate GLib memory managment.
*main.c, mad.[ch]: Add a new switch "-M", which allows to redirect MAD
messages to the file.
* util.[ch], utilunix.c: Modified, deleted our variants of strcasecmp()
and strdup() - we have g_ equivalences. Remove get_full_name() - it is
similar to concat_dir_and_file(). Some other tricks with g_* functions.
* global.h: Modified, extended. Now it is main memory mangment include -
i.e. all inclusions of <stdlib.h>, <malloc.h>, <glib.h>, "fs.h", "mem.h",
"util.h" and "mad.h" done there. This elimanates problem with proper or-
der of #include's.
* All around the source - changed order of #include's, most of them gone
to global.h (see above), minor changes, like "0" -> NULL in string func-
tions.
