RasDial problem

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inskipp

Joined: 23 Jun 2003
Posts: 25
Location: Poland

inskipp 16 Oct 2004, 11:53

I'm trying to use the RasDial function, but it returns ERROR_BUFFER_INVALID.
I think the problem is in RASDIALPARAMS declaration, becose I have the same problem with RasGetEntryDialParams fuction.
Here is part of my code:

Code:

     mov     edi,rasdialparams
   xor     eax,eax
     mov     ecx,sizeof.RASDIALPARAMS
    rep     stosb
       
    mov     [rasdialparams.dwSize],sizeof.RASDIALPARAMS
 ;mov    [rasdialparams.szPhoneNumber],'*'
 invoke  lstrcpy,rasdialparams.szEntryName,_entryname
        invoke  lstrcpy,rasdialparams.szUserName,_user
      invoke  lstrcpy,rasdialparams.szPassword,_pass
      
    lea     eax,[.hConn]
        mov     dword[eax],0
        invoke  RasDial,0,0,rasdialparams,0,0,eax

(...)
rasdialparams RASDIALPARAMS

and the RASDIALPARAMS definition (taken from a ras.h file):

Code:

RAS_MaxDeviceName     =128
RAS_MaxDeviceType     =16
RAS_MaxEntryName      =256
RAS_MaxPhoneNumber    =128
RAS_MaxAreaCode       =10
RAS_MaxPadType        =32
RAS_MaxX25Address     =200
RAS_MaxFacilities     =200
RAS_MaxUserData       =200
RAS_MaxDnsSuffix      =256
RAS_MaxCallbackNumber =RAS_MaxPhoneNumber

UNLEN              = 256
PWLEN          = 256
DNLEN          = 15

struc RASDIALPARAMS
{  
  .dwSize                dd ?
  .szEntryName          rb RAS_MaxEntryName+1 
  .szPhoneNumber      rb RAS_MaxPhoneNumber+1
  .szCallbackNumber  rb RAS_MaxCallbackNumber+1 
  .szUserName            rb UNLEN + 1
  .szPassword           rb PWLEN + 1
  .szDomain             rb DNLEN + 1
  .dwSubEntry           dd ?
  .dwCallbackId         dd ?
}
struct RASDIALPARAMS

Maybe someone used this fuction bedore, or see an error in my code.

16 Oct 2004, 11:53

i-don

Joined: 18 Jul 2003
Posts: 66

i-don 16 Oct 2004, 12:18

Try delete { and } symbols in RASDIALPARAMS struct.

e.g.:

Code:

struc RASDIALPARAMS
  .dwSize               dd ?
  .szEntryName          rb RAS_MaxEntryName+1 
  .szPhoneNumber        rb RAS_MaxPhoneNumber+1
  .szCallbackNumber     rb RAS_MaxCallbackNumber+1 
  .szUserName           rb UNLEN + 1
  .szPassword           rb PWLEN + 1
  .szDomain             rb DNLEN + 1
  .dwSubEntry           dd ?
  .dwCallbackId         dd ?
ends

16 Oct 2004, 12:18

inskipp

Joined: 23 Jun 2003
Posts: 25
Location: Poland

inskipp 16 Oct 2004, 13:03

I downloaded FASM 1.48 with the new macro set, change it in that way, but it still returns ERROR_BUFFER_INVALID. The problem must be somewhere else.

16 Oct 2004, 13:03

inskipp

Joined: 23 Jun 2003
Posts: 25
Location: Poland

inskipp 16 Oct 2004, 15:08

I invoked RasDial with the RASDIALPARAMS initialized from 1 byte to 4096.
It works, when it's 736 or 1052 .
In my case sizeof.RASDIALPARAMS=1057, so my structure is 5 bytes to long, but I don't now why.

16 Oct 2004, 15:08

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