FASM struc WSADATA

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Absolute_30h

Joined: 22 Jun 2015
Posts: 2

Absolute_30h 22 Jun 2015, 16:02

I badly understand English

Why?

FASM WSOCK32.INC

Code:

struct WSADATA
  wVersion   dw ?
  wHighVersion   dw ?
  szDescription  db 256+1 dup (?)
  szSystemStatus db 128+1 dup (?)
  iMaxSockets    dw ?
  iMaxUdpDg  dw ?
  _padding_  db 2 dup (?)
  lpVendorInfo   dd ?

msdn.microsoft.com

Code:

struct WSAData {
  WORD           wVersion;
  WORD           wHighVersion;
  char           szDescription[WSADESCRIPTION_LEN+1];
  char           szSystemStatus[WSASYS_STATUS_LEN+1];
  unsigned short iMaxSockets;
  unsigned short iMaxUdpDg;
  char FAR       *lpVendorInfo;
} WSADATA

Where _padding_ ?!?

Last edited by Absolute_30h on 22 Jun 2015, 16:05; edited 1 time in total

22 Jun 2015, 16:02

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 19254
Location: In your JS exploiting you and your system

revolution 22 Jun 2015, 16:05

The C compiler automatically inserts padding to align each field "naturally".

22 Jun 2015, 16:05

Absolute_30h

Joined: 22 Jun 2015
Posts: 2

Absolute_30h 22 Jun 2015, 16:27

thank you very much

22 Jun 2015, 16:27

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