fixed problem reading long lines

git-svn-id: file:///home/svn/framework3/trunk@7687 4d416f70-5f16-0410-b530-b9f4589650da

lib/msf/core/exploit/ftp.rb

@@ -129,17 +129,31 @@ module Exploit::Remote::Ftp
 	end
 	
 	#
-	# This method reads a response up until the end of it as designated by FTP
-	# resposne continuation stuff
+	# This method reads an FTP response based on FTP continuation stuff
 	#
 	def recv_ftp_resp(nsock = self.sock)
 		found_end = FALSE
 		resp = ""
 		left = ""
 		while TRUE
-			got = nsock.get_once(-1, ftp_timeout)
-			return got if not got
+			data = nsock.get_once(-1, ftp_timeout)
+			return data if not data
 			
+			got = left + data
+			left = ""
+			
+			# handle the end w/o newline case
+			enlidx = got.rindex(0x0a)
+			if enlidx != (got.length-1)
+				if not enlidx
+					left << got
+					next
+				else
+					left << got.slice!((enlidx+1)..got.length)
+				end
+			end
+			
+			# split into lines
 			rarr = got.split(/\r?\n/)
 			rarr.each do |ln|
 				if not found_end
@@ -154,7 +168,7 @@ module Exploit::Remote::Ftp
 				end
 			end
 			if found_end
-				throw "ut oh!" if !left.empty?
+				throw "ut oh!" if left.length > 0
 				return resp
 			end
 		end