Get own IP Address?

BackupUser · Post by **BackupUser** » Sun May 12, 2002 10:28 am

Restored from previous forum. Originally posted by jreimers.

Hello PB profs,

any idea about figuring out my own IP-address?

IÂ´ve tried with API Call GetAdaptersInfo_, parameters seems to be correct
(I get description: NDIS 5.0 driver, Adaptername: {xyz...} from reg and the correct MAC).
IP-address is always empty, the link IP_ADAPTER_INFO\next is always NULL.
IÂ´ve tried it also in VB 5.0 with the example in API-Guide vrom KPD (which I also used translated in PB), results are the same!
Of course, I have a NIC and IP installed, OS = W2K prof SP2

BackupUser · Post by **BackupUser** » Sun May 12, 2002 12:19 pm

Restored from previous forum. Originally posted by tranquil.

Hello PB profs,

any idea about figuring out my own IP-address?

IÂ´ve tried with API Call GetAdaptersInfo_, parameters seems to be correct
(I get description: NDIS 5.0 driver, Adaptername: {xyz...} from reg and the correct MAC).
IP-address is always empty, the link IP_ADAPTER_INFO\next is always NULL.
IÂ´ve tried it also in VB 5.0 with the example in API-Guide vrom KPD (which I also used translated in PB), results are the same!
Of course, I have a NIC and IP installed, OS = W2K prof SP2

Some time ago I posted a little codesnip that collects all IPs of your local system. Its very easy.

Code: Select all



      ; Convert Asigned Word to normal Byte
      
        Procedure.l calc(va.b)
          If va.b0
               ipb1.b=PeekB(ipadr.l)
               ip1.l=calc(ipb1.b)
               ipb2.b=PeekB(ipadr.l+1)
               ip2.l=calc(ipb2.b)
               ipb3.b=PeekB(ipadr.l+2)
               ip3.l=calc(ipb3.b)
               ipb4.b=PeekB(ipadr.l+3)
               ip4.l=calc(ipb4.b)
               localips$(ip)=Str(ip1.l)+"."+Str(ip2.l)+"."+Str(ip3.l)+"."+Str(ip4.l)
               st$+localips$(ip)+Chr(10):ip+1:offset.l+4
             EndIf
        Until h_addr_list=0
      ProcedureReturn ip
    EndProcedure

After calling the procedure, all available IPs should written into the array localips()

Hope it helps.
Mike

Tranquilizer/ Secretly!
Registred PureBasic User

BackupUser · Post by **BackupUser** » Sun May 12, 2002 1:23 pm

Restored from previous forum. Originally posted by PB.

> any idea about figuring out my own IP-address?

I haven't tried this myself, but v3.10 has an IPAddressGadget() which probably
does what you want...

PB - Registered PureBasic Coder

BackupUser · Post by **BackupUser** » Sun May 12, 2002 3:55 pm

Restored from previous forum. Originally posted by jreimers.

> any idea about figuring out my own IP-address?

I haven't tried this myself, but v3.10 has an IPAddressGadget() which probably
does what you want...

PB - Registered PureBasic Coder

thanks to PB, but it doesnÂ´t, IPAddressGadget() offers only filling in theIP

jreimers

BackupUser · Post by **BackupUser** » Sun May 12, 2002 4:02 pm

Restored from previous forum. Originally posted by jreimers.

Thanks to tranquil,

this seems to make sense, but because Your code only returns empty strings (I think because winsock isnÂ´t initialized and there are no error traps).
Do You have annother code snippet including the winsock initialisation?

Would be nice!

BackupUser · Post by **BackupUser** » Sun May 12, 2002 8:24 pm

Restored from previous forum. Originally posted by fred.

Just add 'InitNetwork()' and it should work..

Fred - AlphaSND

BackupUser · Post by **BackupUser** » Mon May 13, 2002 1:09 pm

Restored from previous forum. Originally posted by jreimers.

Just add 'InitNetwork()' and it should work..

Fred - AlphaSND

YouÂ´re right!
Nevertheless I Wonder, why GetAdaptersInfo_ doesnÂ´t work

jreimers

BackupUser · Post by **BackupUser** » Thu Aug 15, 2002 6:58 pm

Restored from previous forum. Originally posted by ricardo.

Just add 'InitNetwork()' and it should work..

Fred - AlphaSND

I do it and only return void strings.
Im on XP with 2 lan cards and internet, i dont know if this makes not work.

BackupUser · Post by **BackupUser** » Thu Aug 15, 2002 9:14 pm

Restored from previous forum. Originally posted by tranquil.

I'm now using Windows 2000 2 LAN Cards, ISDN Card and Internet.

I get all IPs of my local system with the above procedure correctly. Hm...

Mike

Tranquilizer/ Secretly!
http://www.secretly.de
Registred PureBasic User

BackupUser · Post by **BackupUser** » Thu Aug 15, 2002 10:02 pm

Restored from previous forum. Originally posted by ricardo.

I'm now using Windows 2000 2 LAN Cards, ISDN Card and Internet.
I get all IPs of my local system with the above procedure correctly. Hm...

But what can i doing wrong?
I add the InitNetwork()line at the begginig and the rest of the code as is and nothing, only void strings.
If i check what is happenning i saw that:

adr.l=gethostbyname_(*buffer) get a value
h_name.l=PeekL(adr.l) ;Point to host name get a value
ip=0:offset.l=0
Repeat
h_addr_list=PeekL(adr.l+16+offset.l) ; List of Addresses (IPs) void

and the ofcourse it skip this part (since h_addr_list = 0)

If h_addr_list0
...

thats why im getting no results.

BackupUser · Post by **BackupUser** » Fri Aug 16, 2002 6:13 am

Restored from previous forum. Originally posted by Danilo.

Add some error checking and try again.
Maybe InitNetwork() fails for you...

Code: Select all

Dim localips$(10)
 
    Procedure.l calc(va.b)
       ; Convert Asigned Word to normal Byte
       If va.b0
               ipb1.b=PeekB(ipadr.l)
               ip1.l=calc(ipb1.b)
               ipb2.b=PeekB(ipadr.l+1)
               ip2.l=calc(ipb2.b)
               ipb3.b=PeekB(ipadr.l+2)
               ip3.l=calc(ipb3.b)
               ipb4.b=PeekB(ipadr.l+3)
               ip4.l=calc(ipb4.b)
               localips$(ip)=Str(ip1.l)+"."+Str(ip2.l)+"."+Str(ip3.l)+"."+Str(ip4.l)
               st$+localips$(ip)+Chr(10):ip+1:offset.l+4
             EndIf
        Until h_addr_list=0
      ProcedureReturn ip
    EndProcedure
 
 
 
If InitNetwork()
   IPcount = getIPs()
   If IPcount
     A$ = "IPÂ´s available: "+Str(IPcount)+Chr(13)+Chr(13)
     For a = 0 To IPcount - 1
         A$ + "IP " + Str(a) + " :   " + localips$(a) + Chr(13)
     Next a
   Else
     A$ = "No IPÂ´s found"
   EndIf
   MessageRequester("IP INFO",A$,0)
Else
   MessageRequester("ERROR","Cant initialize Network!",0)
EndIf

cya,
...Danilo

(registered PureBasic user)

BackupUser · Post by **BackupUser** » Fri Aug 16, 2002 6:59 am

Restored from previous forum. Originally posted by Danilo.

@Tranquil:
The line " a=gethostname_(*buffer,2048) " in your
procedure getIPs() is useless (not needed).

Same with " st$+localIPs$(ip)+Chr(10) " - dead code.

Your procedure calc() isnt needed here.
We have StrU() for that in PureBasic.
So the 8 variables ip1, ip2, ip3, ip4, ipb1, ipb2, ipb3, ipb4
are not needed anymore.

Maybe you want to change it, so you can get the
Hostname in localIPs$(0) and all IPs after that:

Code: Select all

IPmax = 10
Dim localips$(IPmax)
 
 
    Procedure.l getIPs()
      Shared localIPs$,IPmax
      *buffer = GlobalAlloc_(#GMEM_FIXED | #GMEM_ZEROINIT, 65536)
      Dim localIPs$(IPmax)  ; Remove all existent IPs from list ( REDIM = Clear )       
      a=gethostname_(*buffer,2048)
      localIPs$(0) = UCase(PeekS(*buffer))
      adr.l=gethostbyname_(*buffer)
      h_name.l=PeekL(adr.l) ;Point to host name
      ip=0:offset.l=0
        Repeat
          h_addr_list=PeekL(adr.l+16+offset.l) ; List of Addresses (IPs)
          ipadr.l=h_addr_list
             If h_addr_list0
               localIPs$(ip+1)=StrU(PeekB(ipadr.l),0)+"."+StrU(PeekB(ipadr.l+1),0)+"."+StrU(PeekB(ipadr.l+2),0)+"."+StrU(PeekB(ipadr.l+3),0)
               ;st$+localIPs$(ip)+Chr(10)
               ip+1:offset.l+4
             EndIf
        Until h_addr_list=0
      ProcedureReturn ip
    EndProcedure
 
 
If InitNetwork()
   IPcount = getIPs()
   If IPcount
     A$ = "IPÂ´s available on: "+Chr(13)+Chr(13)+Chr(34)+localIPs$(0)+Chr(34)+Chr(13)+Chr(13)
     For a = 1 To IPcount
         A$ + "IP " + Str(a) + " :   " + localIPs$(a) + Chr(13)
     Next a
   Else
     A$ = "No IPÂ´s found"
   EndIf
   MessageRequester("IP INFO",A$,0)
Else
   MessageRequester("ERROR","Cant initialize Network!",0)
EndIf

Or just remove this useless lines...

cya,
...Danilo
(registered PureBasic user)

Edited by - Danilo on 16 August 2002 19:21:43

BackupUser · Post by **BackupUser** » Fri Aug 16, 2002 2:15 pm

Restored from previous forum. Originally posted by Franco.

Sorry Danilo, but your code doesn't work on my machine (Win2000-Sp3).

The last 3 digits are:
4294967214
instead of:
174

This is because you have coded:

localIPs$(ip+1)=StrU(PeekB(ipadr.l),0)+"."+StrU(PeekB(ipadr.l+1),0)+"."+StrU(PeekB(ipadr.l+2),0)+"."+StrU(PeekB(ipadr.l+3),2)

instead of:

localIPs$(ip+1)=StrU(PeekB(ipadr.l),0)+"."+StrU(PeekB(ipadr.l+1),0)+"."+StrU(PeekB(ipadr.l+2),0)+"."+StrU(PeekB(ipadr.l+3),0)

Have a nice day...
Franco

Sometimes you have to go a lonely way to accomplish genius things.

BackupUser · Post by **BackupUser** » Fri Aug 16, 2002 4:09 pm

Restored from previous forum. Originally posted by tranquil.

@Danielo:

I know that Calc() isn't needed any more but as I coded this procedure strU did not exist in the PB language.

Cheers

Mike

Tranquilizer/ Secretly!
http://www.secretly.de
Registred PureBasic User

BackupUser · Post by **BackupUser** » Fri Aug 16, 2002 6:23 pm

Restored from previous forum. Originally posted by Danilo.

Thx Franco !!

cya,
...Danilo

(registered PureBasic user)