[v2: added clean-ups, backed off on some of the build silencing]

This is a rather large rearrangement of how a subset of the parser global
variables are defined. Right now, there are unit tests built without
linking against parser_main.c. As a result, none of the globals defined in
parser_main.c could be used in the code that is built for unit tests
(misc, regex, symtab, variable). To get a clean build, either stubs needed
to be added to "#ifdef UNIT_TEST" blocks in each .c file, or we had to
depend on link-time optimizations that would throw out the unused routines.

First, this is a problem because all the compile-time warnings had to be
explicitly silenced, so reviewing the build logs becomes difficult on
failures, and we can potentially (in really unlucky situations) test
something that isn't actually part of the "real" parser.

Second, not all compilers will allow this kind of linking (e.g. mips gcc),
and the missing symbols at link time will fail the entire build even though
they're technically not needed.

To solve all of this, I've moved all of the global variables used in lex,
yacc, and main to parser_common.c, and adjusted the .h files. On top of
this, I made sure to fully link the tst builds so all symbols are resolved
(including aare lib) and removedonly  tst build-log silencing (for now,
deferring to another future patchset to consolidate the build silencing).

Signed-off-by: Kees Cook <kees.cook@canonical.com>

parser/parser_main.c

@@ -2,7 +2,7 @@
  *   Copyright (c) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
  *   NOVELL (All rights reserved)
  *
- *   Copyright (c) 2010
+ *   Copyright (c) 2010, 2011
  *   Canonical, Ltd. (All rights reserved)
  *
  *   This program is free software; you can redistribute it and/or
@@ -58,46 +58,26 @@
 #define UNPRIVILEGED_OPS (!(PRIVILEGED_OPS))
 
 const char *parser_title	= "AppArmor parser";
-const char *parser_copyright	= "Copyright (C) 1999-2008 Novell Inc.\nCopyright 2009-2010 Canonical Ltd.";
+const char *parser_copyright	= "Copyright (C) 1999-2008 Novell Inc.\nCopyright 2009-2011 Canonical Ltd.";
 
 char *progname;
-int option = OPTION_ADD;
 int opt_force_complain = 0;
 int binary_input = 0;
-int names_only = 0;
 int dump_vars = 0;
 int dump_expanded_vars = 0;
-dfaflags_t dfaflags = DFA_CONTROL_TREE_NORMAL | DFA_CONTROL_TREE_SIMPLE | DFA_CONTROL_MINIMIZE | DFA_CONTROL_MINIMIZE_HASH_TRANS | DFA_CONTROL_MINIMIZE_HASH_PERMS;
-int conf_verbose = 0;
-int conf_quiet = 0;
-int kernel_load = 1;
 int show_cache = 0;
 int skip_cache = 0;
 int skip_read_cache = 0;
 int write_cache = 0;
-#ifdef FORCE_READ_IMPLIES_EXEC
-int read_implies_exec = 1;
-#else
-int read_implies_exec = 0;
-#endif
 int preprocess_only = 0;
 int skip_mode_force = 0;
 struct timespec mru_tstamp;
 
-char *subdomainbase = NULL;
 char *match_string = NULL;
 char *flags_string = NULL;
-int regex_type = AARE_DFA;
-int perms_create = 0;		/* perms contain create flag */
-int kernel_supports_network = 1;	/* kernel supports network rules */
-int net_af_max_override = -1;		/* use kernel to determine af_max */
-char *profile_namespace = NULL;
-int flag_changehat_version = FLAG_CHANGEHAT_1_5;
-FILE *ofile = NULL;
 
 /* per-profile settings */
 int force_complain = 0;
-char *profilename = NULL;
 
 struct option long_options[] = {
 	{"add", 		0, 0, 'a'},
@@ -322,31 +302,6 @@ static void display_optimize(char *command)
 	print_flag_table(optflag_table);
 }
 
-void pwarn(char *fmt, ...)
-{
-	va_list arg;
-	char *newfmt;
-	int rc;
-
-	if (conf_quiet || names_only || option == OPTION_REMOVE)
-		return;
-
-	rc = asprintf(&newfmt, _("Warning from %s (%s%sline %d): %s"),
-		      profilename ? profilename : "stdin",
-		      current_filename ? current_filename : "",
-		      current_filename ? " " : "",
-		      current_lineno,
-		      fmt);
-	if (!newfmt)
-		return;
-
-	va_start(arg, fmt);
-	vfprintf(stderr, newfmt, arg);
-	va_end(arg);
-
-	free(newfmt);
-}
-
 static int process_args(int argc, char *argv[])
 {
 	int c, o;