Source code of Windows XP (NT5)
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//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1992 - 1993.
//
// File: envdef.h
//
// Contents:
//
// Classes:
//
// Functions:
//
// History: 01-05-96 Rohanp Created
//
//----------------------------------------------------------------------------
#ifndef __ENVDEF_H__
#define __ENVDEF_H__
#define MSG_TYPE_NDR 0x00000001 //Msg is an NDR
#define MSG_TYPE_DSL 0x00000002 //Msg has a DL
#define MSG_TYPE_NDE 0x00000004 //Msg is to be NDRed immediately
#define MSG_TYPE_NDP 0x00000008 //NDR sent to POSTMASTER
#define MSG_TYPE_RES 0x00000010 //Msg was already resolved through abook
#define MSG_TYPE_EMIME 0x00000020 //Msg is 8bit mime
#define MSG_TYPE_RQL 0x00000040 //Requeue this message to the sharing queue
#define MSG_TYPE_LRE 0x00000080 //Local recipients were in the retry queue
#define MSG_TYPE_RRE 0x00000100 //Remote recipients were in the retry queue
#define MSG_TYPE_NEW 0x00000200 //Brand new message
#define MSG_TYPE_SQL 0x00000400 //Reading from SQL
#define MSG_TYPE_PKUP 0x00000800 //Reading from Pickup directory
#define MSG_TYPE_ASYNC_RES_STARTED 0x00001000 //Async resolution started
#define MSG_TYPE_ASYNC_RES_STOPPED 0x00002000 //Async resolution stopped
#define MSG_TYPE_LTR_PRESENT 0x00004000 //An LTR is present before addr resolution
//current version of this header
#define CURRENT_HEADER_HIGH_VERSION 1
#define CURRENT_HEADER_LOW_VERSION 0
#define MAKESMTPVERSION(HighVersion, LowVersion) (((HighVersion) << 16) | (LowVersion))
#define ENV_SIGNATURE ((DWORD)'SENV')
#define IsPropertySet(Flags, Option) ((Flags & Option) == Option)
enum HEADER_OFFSET {HDR_VERSION, HDR_TYPE, HDR_LOFFSET, HDR_LSIZE,
HDR_ROFFSET, HDR_RSIZE, HDR_LEXP_TIME,
HDR_RETRY_OFFSET, HDR_RETRY_ELEMENTS,
HDR_ROUTE_SIZE, HDR_REXP_TIME};
/*
The envelope for each message resides in an NTFS
stream in that message file. The envelope has
a header that looks like the following :
struct ENVELOPE_HEADER
{
DWORD Version; // The current version of this structure
DWORD Signature; // Signature (should be 'SENV'
DWORD HdrSize; // Current size of this structure
DWORD BodyOffset; // Offset of the body of the message from beginning
DWORD MsgFlags; // 0 if normal message, 1 if NDR message
DWORD LocalOffset; // Local rcpt. list offset
DWORD RemoteOffset; // Remote rcpt. list offset
DWORD LocalSize; // Size of local rcpt list in bytes
DWORD RemoteSize; // Size of remote rcpt list in bytes
DWORD RouteStructSize; // Size of AB structure, if present
LONGLONG LocalExpireTime; // Time to delete local portion of mail
LONGLONG RemoteExpireTime; // To delete remote portion of mail
};
Right after the envelope header is the address
that was in the "Mail From" line. This address
is stored like "[email protected]\n". The "S"
stands for SENDER. In the code below, the first
byte is always removed when reading the address.
The '\n' is also replaced with a '\0';
In this version the Remote recipient list, if any,
comes right after the senders' address. You can
also find it by seeking RemoteOffset bytes from the
beginning of the file. Once RemoteOffset is reached,
the code reads RemoteSize bytes of data. This is the
total size in bytes of the remote recipient list.
Each recipient address is stored on a line by itself,
with the first letter "R" as in the example below:
[email protected]\n
[email protected]\n
etc.
The local addresses have the same format. The first byte,
'R' stands for recipient and is always removed when building
the address. The '\n' is also removed.
*/
typedef struct _ENVELOPE_HEADER_
{
DWORD Version; // The current version of this structure
DWORD Signature; // Signature (should be 'SENV'
DWORD HdrSize; // Size of this header
DWORD BodyOffset; // Offset of body into file
DWORD MsgFlags; // Has flags noted above
DWORD LocalOffset; // Local rcpt. list offset
DWORD RemoteOffset; // Remote rcpt. list offset
DWORD LocalSize; // Size of local rcpt list in bytes
DWORD RemoteSize; // Size of remote rcpt list in bytes
DWORD RouteStructSize; // Size of AB structure, if present
DWORD RetryOffset; // offset of local recipients to retry
DWORD RetryElements; // Size of retry list
LONGLONG LocalExpireTime; // Time to delete local portion of mail
LONGLONG RemoteExpireTime; // To delete remote portion of mail
} ENVELOPE_HEADER, *PENV_HEADER;
typedef struct _ENVELOPE_HEADER_EX_
{
DWORD ErrorCode;
ABROUTING AbInfo; // Last address in DL we processed
}ENVELOPE_HEADER_EX, *PENV_HEADER_EX;
#endif