handle missing targets more gracefully, stub out linux and x86_64 support detection

git-svn-id: file:///home/svn/framework3/trunk@8729 4d416f70-5f16-0410-b530-b9f4589650da

modules/exploits/multi/http/tomcat_mgr_deploy.rb

@@ -101,6 +101,10 @@ class Metasploit3 < Msf::Exploit::Remote
 
 				when /Windows/
 					plat = 'win'
+
+				when /Linux/
+					plat = 'linux'
+
 				end
 
 			when /OS Architecture: /
@@ -109,11 +113,21 @@ class Metasploit3 < Msf::Exploit::Remote
 
 				when 'x86'
 					arch = ARCH_X86
+
+				when 'x86_64'
+					arch = ARCH_X86_64
+
 				end
 
 			end
 		}
 
+		# No arch or platform found?
+		if (not arch or not plat)
+			return nil
+		end
+		#print_status("Remote server is %s %s" % [plat, arch])
+
 		# see if we have a match
 		targets.each { |t|
 			if (t['Platform'] == plat) and (t['Arch'] == arch)