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/* NLM (NetWare Loadable Module) support for BFD.
   Copyright 1993, 1994 Free Software Foundation, Inc.
 
   Written by Fred Fish @ Cygnus Support
 
This file is part of BFD, the Binary File Descriptor library.
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 
/* This file is part of NLM support for BFD, and contains the portions
   that describe how NLM is represented externally by the BFD library.
   I.E. it describes the in-file representation of NLM.  It requires
   the nlm/common.h file which contains the portions that are common to
   both the internal and external representations.
 
   Note that an NLM header consists of three parts:
 
   (1)	A fixed length header that has specific fields of known length,
	at specific offsets in the file. 
 
   (2)  A variable length header that has specific fields in a specific
        order, but some fields may be variable length.
 
   (3)	A auxiliary header that has various optional fields in no specific
        order.  There is no way to identify the end of the auxiliary headers
	except by finding a header without a recognized 'stamp'.
 
   The exact format of the fixed length header unfortunately varies
   from one NLM target to another, due to padding.  Each target
   defines the correct external format in a separate header file.
 
*/
 
/* NLM Header */
 
/* The version header is one of the optional auxiliary headers and
   follows the fixed length and variable length NLM headers. */
 
typedef struct nlmNAME(external_version_header)
{
 
  /* The header is recognized by "VeRsIoN#" in the stamp field. */
  char stamp[8];
 
  unsigned char majorVersion[NLM_TARGET_LONG_SIZE];
 
  unsigned char minorVersion[NLM_TARGET_LONG_SIZE];
 
  unsigned char revision[NLM_TARGET_LONG_SIZE];
 
  unsigned char year[NLM_TARGET_LONG_SIZE];
 
  unsigned char month[NLM_TARGET_LONG_SIZE];
 
  unsigned char day[NLM_TARGET_LONG_SIZE];
 
} NlmNAME(External_Version_Header);
 
 
typedef struct nlmNAME(external_copyright_header)
{
 
  /* The header is recognized by "CoPyRiGhT=" in the stamp field. */
 
  char stamp[10];
 
  unsigned char copyrightMessageLength[1];
 
  /* There is a variable length field here called 'copyrightMessage'
     that is the length specified by copyrightMessageLength. */
 
} NlmNAME(External_Copyright_Header);
 
 
typedef struct nlmNAME(external_extended_header)
{
 
  /* The header is recognized by "MeSsAgEs" in the stamp field. */
 
  char stamp[8];
 
  unsigned char languageID[NLM_TARGET_LONG_SIZE];
 
  unsigned char messageFileOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char messageFileLength[NLM_TARGET_LONG_SIZE];
 
  unsigned char messageCount[NLM_TARGET_LONG_SIZE];
 
  unsigned char helpFileOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char helpFileLength[NLM_TARGET_LONG_SIZE];
 
  unsigned char RPCDataOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char RPCDataLength[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedCodeOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedCodeLength[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedDataOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedDataLength[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedRelocationFixupOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedRelocationFixupCount[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedExternalReferenceOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedExternalReferenceCount[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedPublicsOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedPublicsCount[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedDebugRecordOffset[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedDebugRecordCount[NLM_TARGET_LONG_SIZE];
 
  unsigned char sharedInitializationOffset[NLM_TARGET_ADDRESS_SIZE];
 
  unsigned char SharedExitProcedureOffset[NLM_TARGET_ADDRESS_SIZE];
 
  unsigned char productID[NLM_TARGET_LONG_SIZE];
 
  unsigned char reserved0[NLM_TARGET_LONG_SIZE];
 
  unsigned char reserved1[NLM_TARGET_LONG_SIZE];
 
  unsigned char reserved2[NLM_TARGET_LONG_SIZE];
 
  unsigned char reserved3[NLM_TARGET_LONG_SIZE];
 
  unsigned char reserved4[NLM_TARGET_LONG_SIZE];
 
  unsigned char reserved5[NLM_TARGET_LONG_SIZE];
 
} NlmNAME(External_Extended_Header);
 
 
typedef struct nlmNAME(external_custom_header)
{
 
  /* The header is recognized by "CuStHeAd" in the stamp field. */
  char stamp[8];
 
  /* Length of this header.  */
  unsigned char length[NLM_TARGET_LONG_SIZE];
 
  /* Offset to data.  */
  unsigned char dataOffset[NLM_TARGET_LONG_SIZE];
 
  /* Length of data.  */
  unsigned char dataLength[NLM_TARGET_LONG_SIZE];
 
  /* Stamp for this customer header--we recognize "CyGnUsEx".  */
  char dataStamp[8];
 
} NlmNAME(External_Custom_Header);