Remove unused NSE library requires

for lib in nselib/*.lua*; do l=${lib#*/}; l=${l%.lua*}; find . -name \
  \*.lua -o -name \*.nse | xargs grep -l "require .$l\>" | xargs grep \
  -c "\<$l\." | grep ':0$' | awk -F: '{print "'$l'", $1}'; done

Did not remove calls to stdnse.silent_require since these can be used to
abort script execution if OpenSSL is not included, even if the script
does not directly call openssl.* (perhaps it uses comm.tryssl instead,
for instance).

Also did not remove require "strict", since that library is special and
modifies the environment.

nselib/data/http-devframework-fingerprints.lua

@@ -2,7 +2,6 @@ local http = require "http"
 local io = require "io"
 local string = require "string"
 local table = require "table"
-local url = require "url"
 
 ---
 -- http-devframework-fingerprints.lua

scripts/broadcast-eigrp-discovery.nse

@@ -1,6 +1,5 @@
 local eigrp = require "eigrp"
 local nmap = require "nmap"
-local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"
 local bin = require "bin"

scripts/broadcast-pppoe-discover.nse

@@ -1,4 +1,3 @@
-local bin = require "bin"
 local nmap = require "nmap"
 local pppoe = require "pppoe"
 local stdnse = require "stdnse"

scripts/cassandra-info.nse

@@ -2,8 +2,6 @@ local creds = require "creds"
 local nmap = require "nmap"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
-local bin = require "bin"
-local string = require "string"
 local table = require "table"
 
 local cassandra = stdnse.silent_require "cassandra"

scripts/cccam-version.nse

@@ -1,7 +1,5 @@
-local bin = require "bin"
 local nmap = require "nmap"
 local shortport = require "shortport"
-local string = require "string"
 local formulas = require "formulas"
 
 description = [[

scripts/duplicates.nse

@@ -2,7 +2,6 @@ local ipOps = require "ipOps"
 local nmap = require "nmap"
 local ssh1 = require "ssh1"
 local stdnse = require "stdnse"
-local string = require "string"
 local table = require "table"
 
 description = [[

scripts/hostmap-bfk.nse

@@ -1,4 +1,3 @@
-local dns = require "dns"
 local http = require "http"
 local io = require "io"
 local ipOps = require "ipOps"

scripts/hostmap-ip2hosts.nse

@@ -44,7 +44,6 @@ license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
 categories = {"external", "discovery"}
 
-local dns = require "dns"
 local ipOps = require "ipOps"
 local io = require "io"
 local http = require "http"

scripts/http-adobe-coldfusion-apsa1301.nse

@@ -24,7 +24,6 @@ local http = require "http"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local string = require "string"
-local url = require "url"
 
 portrule = shortport.http
 local DEFAULT_PATH = "/CFIDE/adminapi/"

scripts/http-devframework.nse

@@ -41,7 +41,6 @@ categories = {"discovery", "intrusive"}
 author = "George Chatzisofroniou"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
-local http = require "http"
 local nmap = require "nmap"
 local shortport = require "shortport"
 local stdnse = require "stdnse"

scripts/http-dlink-backdoor.nse

@@ -37,7 +37,6 @@ categories = {"exploit","vuln"}
 
 local http = require "http"
 local shortport = require "shortport"
-local stdnse = require "stdnse"
 local string = require "string"
 local vulns = require "vulns"
 

scripts/http-errors.nse

@@ -37,7 +37,6 @@ categories = {"discovery", "intrusive"}
 author = "George Chatzisofroniou"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
-local http = require "http"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"

scripts/http-exif-spider.nse

@@ -27,7 +27,6 @@ license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 categories = {"intrusive"}
 
 local shortport = require 'shortport'
-local http = require 'http'
 local stdnse = require 'stdnse'
 local httpspider = require 'httpspider'
 local string = require 'string'

scripts/http-form-fuzzer.nse

@@ -56,7 +56,6 @@ local http = require 'http'
 local stdnse = require 'stdnse'
 local string = require 'string'
 local table = require 'table'
-local tab = require 'tab'
 local url = require 'url'
 
 -- generate a charset that will be used for fuzzing

scripts/http-frontpage-login.nse

@@ -2,7 +2,6 @@ local stdnse = require "stdnse"
 local shortport = require "shortport"
 local http = require "http"
 local string = require "string"
-local url = require "url"
 local vulns = require "vulns"
 
 

scripts/http-mobileversion-checker.nse

@@ -30,7 +30,6 @@ local shortport = require "shortport"
 local httpspider = require "httpspider"
 local stdnse = require "stdnse"
 local table = require "table"
-local string = require "string"
 
 getLastLoc = function(host, port, useragent)
 

scripts/http-referer-checker.nse

@@ -24,7 +24,6 @@ categories = {"discovery", "safe"}
 author = "George Chatzisofroniou"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
-local http = require "http"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"

scripts/http-sitemap-generator.nse

@@ -48,7 +48,6 @@ license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 categories = {"discovery", "intrusive"}
 
 local shortport = require 'shortport'
-local http = require 'http'
 local stdnse = require 'stdnse'
 local url = require 'url'
 local httpspider = require 'httpspider'

scripts/http-title.nse

@@ -1,11 +1,8 @@
-local dns = require "dns"
 local http = require "http"
-local ipOps = require "ipOps"
 local nmap = require "nmap"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local string = require "string"
-local url = require "url"
 
 description = [[
 Shows the title of the default page of a web server.

scripts/http-useragent-tester.nse

@@ -52,7 +52,6 @@ local httpspider = require "httpspider"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"
-local string = require "string"
 
 getLastLoc = function(host, port, useragent)
 

scripts/http-xssed.nse

@@ -30,7 +30,6 @@ categories = {"safe", "external", "discovery"}
 local http = require "http"
 local nmap = require "nmap"
 local shortport = require "shortport"
-local stdnse = require "stdnse"
 local table = require "table"
 local string = require "string"
 

scripts/ip-forwarding.nse

@@ -2,7 +2,6 @@ local dns = require "dns"
 local nmap = require "nmap"
 local packet = require "packet"
 local stdnse = require "stdnse"
-local string = require "string"
 local ipOps = require "ipOps"
 
 description = [[

scripts/ms-sql-dac.nse

@@ -2,7 +2,6 @@ local coroutine = require "coroutine"
 local mssql = require "mssql"
 local nmap = require "nmap"
 local stdnse = require "stdnse"
-local string = require "string"
 local table = require "table"
 
 description = [[

scripts/msrpc-enum.nse

@@ -1,6 +1,5 @@
 local msrpc = require "msrpc"
 local smb = require "smb"
-local string = require "string"
 local stdnse = require "stdnse"
 local table = require "table"
 

scripts/rmi-vuln-classloader.nse

@@ -1,7 +1,6 @@
 local bin = require "bin"
 local rmi = require "rmi"
 local shortport = require "shortport"
-local stdnse = require "stdnse"
 local string = require "string"
 local vulns = require "vulns"
 

scripts/rpc-grind.nse

@@ -1,7 +1,6 @@
 local stdnse = require "stdnse"
 local nmap = require "nmap"
 local rpc = require "rpc"
-local datafiles = require "datafiles"
 local bin = require "bin"
 local math = require "math"
 local io = require "io"

scripts/sip-enum-users.nse

@@ -7,7 +7,6 @@ local stdnse = require "stdnse"
 local table = require "table"
 local math = require "math"
 local brute = require "brute"
-local creds = require "creds"
 local unpwdb = require "unpwdb"
 
 description = [[

scripts/smb-vuln-ms10-054.nse

@@ -1,7 +1,5 @@
 local bin = require "bin"
-local msrpc = require "msrpc"
 local smb = require "smb"
-local string = require "string"
 local vulns = require "vulns"
 local stdnse = require "stdnse"
 

scripts/socks-auth-info.nse

@@ -1,6 +1,5 @@
 local shortport = require "shortport"
 local socks = require "socks"
-local stdnse = require "stdnse"
 local table = require "table"
 
 description = [[

scripts/sstp-discover.nse

@@ -1,4 +1,3 @@
-local nmap = require 'nmap'
 local comm = require 'comm'
 local string = require 'string'
 local stdnse = require 'stdnse'

scripts/targets-ipv6-multicast-echo.nse

@@ -2,7 +2,6 @@ local coroutine = require "coroutine"
 local nmap = require "nmap"
 local packet = require "packet"
 local stdnse = require "stdnse"
-local string = require "string"
 local tab = require "tab"
 local table = require "table"
 local target = require "target"

scripts/teamspeak2-version.nse

@@ -2,7 +2,6 @@ local comm = require "comm"
 local shortport = require "shortport"
 local nmap = require "nmap"
 local bin = require "bin"
-local stdnse = require "stdnse"
 local string = require "string"
 
 description = [[

scripts/tls-nextprotoneg.nse

@@ -1,5 +1,4 @@
 local nmap = require "nmap"
-local string = require "string"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"

scripts/whois-domain.nse

@@ -79,7 +79,6 @@ author = "George Chatzisofroniou"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 categories = {"discovery", "external", "safe"}
 
-local http = require "http"
 local io = require "io"
 local ipOps = require "ipOps"
 local math = require "math"