IP plug-in

Author: sunjammer (talk, contrib)

Links

Ipdll.zip (9 KB)

Description

Version: 1.0.

Returns the IP's for your machine.

How to use

get_ip DLL Function

Syntax

ip::get_ip
Pop "ResultVar"

Parameters

ResultVar

Returns the IP's for your machine in the format below:

ip;[ip2;[...]]

Use the CheckIP function in the example script below to check the type of IP's they are. Use GetNextIP function to advance to the next IP addresses.

Example Script

outfile IpTest.exe
name IpTest
 
; get_ip example
; by Hendri Adriaens
; HendriAdriaens@hotmail.com
;
; Usage:
; ip::get_ip
; Output: 'ip1;ip2;ip3;ip4;'
; (semi-colon delimited IP's list, on stack)
;
; Uses NSIS script to retrieve
; separate IP-addresses and to
; test whether or not it is an
; internet IP-address. Based on
; information by Joost Verburg:
;   These ranges are for local networks: 
;   10.x.x.x / 255.0.0.0 
;   172.16.x.x / 255.255.0.0 to 172.31.x.x / 255.255.0.0 
;   192.168.x.x / 255.255.255.0 
;   169.254.x.x / 255.255.0.0
; and:
;   169.254.x.x is an Automatic Private IP Address,
;   which you get when there is no DHCP server available,
;   for example, Windows gives these addresses when you check
;   "Obtain an IP address automatically" and you have no DHCP server.
;
; Further information has also been found at:
; http://home.t-online.de/home/TschiTschi/ip_adressierung.htm
;
; Script supplies two funcions:
; GetNextIp : get any IP (network and internet)
; CheckIP   : determine IP type (see function header for available types)
; Script uses the VersionCheck
; function to test IP's.
 
 
Section
  ; Code to use actual ExtensionDLL
  ; Current script provides an example
 
  ip::get_ip
  Pop $0
 
  ; test entry
  ;StrCpy $0 '192.168.0.100;127.0.0.1;152.168.0.101;169.254.0.1;'
 
  Loop:
  Push $0
  Call GetNextIp
  Call CheckIp
  Pop $2 ; Type of current IP-address
  Pop $1 ; Current IP-address
  Pop $0 ; Remaining addresses
  StrCmp $2 '1' '' NoLoopBackIp
    MessageBox MB_OK "LoopBack IP-address: $1"
    Goto Continue
  NoLoopBackIp:
  StrCmp $2 '2' '' NoAPA
    MessageBox MB_OK "Automatic Private IP-address: $1"
    Goto Continue
  NoAPA:
  StrCmp $2 '3' '' NoLanIp
    MessageBox MB_OK "Network IP-address: $1"
    Goto Continue
  NoLanIp:
  MessageBox MB_OK "Internet IP-address: $1"
  Continue:
  StrCmp $0 '' ExitLoop Loop
  ExitLoop:
SectionEnd
 
; Function GetNextIp
; input: head of stack
; format: 'ip1;ip2;ip3;ip4;'
; output: 'ip1' head of stack
;         'ip2;ip3;ip4;' second entry of stack
 
Function GetNextIp
  Exch $0
  Push $1
  Push $2
  Strcpy $2 0             ; Counter
  Loop:
    IntOp $2 $2 + 1
    StrCpy $1 $0 1 $2
    StrCmp $1 '' ExitLoop
    StrCmp $1 ';' '' Loop
    StrCpy $1 $0 $2       ; IP-address
    IntOp $2 $2 + 1
    StrCpy $0 $0 '' $2    ; Remaining string
  ExitLoop:
  Pop $2
  Push $0
  Exch 2
  Pop $0
  Exch $1
FunctionEnd
 
; Function CheckIP
; input: IP-address on stack
; output: additional entry on stack
;         1 - LoopBack IP (localhost, indicates no connection to a LAN or to the internet).
;         2 - Automatic Private IP Address (no DHCP server).
;         3 - Network IP.
;         4 - Internet IP.
; Eg:
; Push '192.168.0.100'
; Call CheckIP
; Pop $0 ; Contains '3'
; Pop $1 ; Contains '192.168.0.100'
 
Function CheckIP
  Exch $0
  Push $1
 
  ; Check 127.x.x.x
  Push '127.0.0.0'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 2 '' Range1     ; IP cannot be in range of LoopBack addresses
  Push '127.255.255.255'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 1 LoopBack      ; We found a LoopBack IP
 
  ; Check 10.x.x.x
  Range1:
  Push '10.0.0.0'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 2 '' Range2     ; IP cannot be in range 1
  Push '10.255.255.255'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 1 LanIp         ; We found a LanIp
 
  ; Check 172.16.x.x to 172.31.x.x
  Range2:
  Push '172.16.0.0'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 2 '' Range3     ; IP cannot be in range 2
  Push '172.31.255.255'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 1 LanIp         ; We found a LanIp
 
  ; Check 192.168.x.x
  Range3:
  Push '192.168.0.0'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 2 '' Range4     ; IP cannot be in range 3
  Push '192.168.255.255'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 1 LanIp         ; We found a LanIp
 
  ; Check 169.254.x.x
  Range4:
  Push '169.254.0.0'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 2 '' InternetIp ; It should be an internet IP
  Push '169.254.255.255'
  Push $0
  Call VersionCheck
  Pop $1
  StrCmp $1 1 APA           ; We found an Automatic Private IP Address
 
  Goto InternetIp           ; Remaining addresses are internet IPs
 
  LoopBack:
  StrCpy $1 1
  Goto Exit
 
  APA:
  StrCpy $1 2
  Goto Exit
 
  LanIp:
  StrCpy $1 3
  Goto Exit
 
  InternetIp:
  StrCpy $1 4
 
  Exit:
  Exch $1
  Exch 1
  Exch $0
  Exch 1
FunctionEnd
 
; Function VersionCheck
; input: 'v1', 'v2' on stack
; output 1 - if number 1 is newer
;        2 - if number 2 is newer
;        0 - if it is the same verion
; Eg:
; Push '3.5.1.4'
; Push '3.5'
; Call VersionCheck
; Pop $0 ; now contains 1
 
Function VersionCheck
  Exch $0 ;second versionnumber
  Exch
  Exch $1 ;first versionnumber
  Push $R0 ;counter for $0
  Push $R1 ;counter for $1
  Push $3 ;temp char
  Push $4 ;temp string for $0
  Push $5 ;temp string for $1
  StrCpy $R0 "-1"
  StrCpy $R1 "-1"
  Start:
  StrCpy $4 ""
  DotLoop0:
  IntOp $R0 $R0 + 1
  StrCpy $3 $0 1 $R0
  StrCmp $3 "" DotFound0
  StrCmp $3 "." DotFound0
  StrCpy $4 $4$3
  Goto DotLoop0
  DotFound0:
  StrCpy $5 ""
  DotLoop1:
  IntOp $R1 $R1 + 1
  StrCpy $3 $1 1 $R1
  StrCmp $3 "" DotFound1
  StrCmp $3 "." DotFound1
  StrCpy $5 $5$3
  Goto DotLoop1
  DotFound1:
  Strcmp $4 "" 0 Not4
    StrCmp $5 "" Equal
    Goto Ver2Less
  Not4:
  StrCmp $5 "" Ver2More
  IntCmp $4 $5 Start Ver2Less Ver2More
  Equal:
  StrCpy $0 "0"
  Goto Finish
  Ver2Less:
  StrCpy $0 "1"
  Goto Finish
  Ver2More:
  StrCpy $0 "2"
  Finish:
  Pop $5
  Pop $4
  Pop $3
  Pop $R1
  Pop $R0
  Pop $1
  Exch $0
FunctionEnd

Versions History

1.0

• First version.

Credits

Written by Hendri Adriaens aka Smile2Me...