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  1. /* NLM (NetWare Loadable Module) support for BFD.
  2.    Copyright 1993, 1994, 2005, 2010 Free Software Foundation, Inc.
  3.  
  4.    Written by Fred Fish @ Cygnus Support
  5.  
  6.    This file is part of BFD, the Binary File Descriptor library.
  7.  
  8.    This program is free software; you can redistribute it and/or modify
  9.    it under the terms of the GNU General Public License as published by
  10.    the Free Software Foundation; either version 3 of the License, or
  11.    (at your option) any later version.
  12.  
  13.    This program is distributed in the hope that it will be useful,
  14.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16.    GNU General Public License for more details.
  17.  
  18.    You should have received a copy of the GNU General Public License
  19.    along with this program; if not, write to the Free Software
  20.    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21.    MA 02110-1301, USA.  */
  22.  
  23. /* This file is part of NLM support for BFD, and contains the portions
  24.    that describe how NLM is represented externally by the BFD library.
  25.    I.E. it describes the in-file representation of NLM.  It requires
  26.    the nlm/common.h file which contains the portions that are common to
  27.    both the internal and external representations.
  28.  
  29.    Note that an NLM header consists of three parts:
  30.  
  31.    (1)  A fixed length header that has specific fields of known length,
  32.         at specific offsets in the file.
  33.  
  34.    (2)  A variable length header that has specific fields in a specific
  35.         order, but some fields may be variable length.
  36.  
  37.    (3)  A auxiliary header that has various optional fields in no specific
  38.         order.  There is no way to identify the end of the auxiliary headers
  39.         except by finding a header without a recognized 'stamp'.
  40.  
  41.    The exact format of the fixed length header unfortunately varies
  42.    from one NLM target to another, due to padding.  Each target
  43.    defines the correct external format in a separate header file.  */
  44.    
  45. /* NLM Header.  */
  46.  
  47. /* The version header is one of the optional auxiliary headers and
  48.    follows the fixed length and variable length NLM headers.  */
  49.  
  50. typedef struct nlmNAME(external_version_header)
  51. {
  52.  
  53.   /* The header is recognized by "VeRsIoN#" in the stamp field. */
  54.   char stamp[8];
  55.  
  56.   unsigned char majorVersion[NLM_TARGET_LONG_SIZE];
  57.  
  58.   unsigned char minorVersion[NLM_TARGET_LONG_SIZE];
  59.  
  60.   unsigned char revision[NLM_TARGET_LONG_SIZE];
  61.  
  62.   unsigned char year[NLM_TARGET_LONG_SIZE];
  63.  
  64.   unsigned char month[NLM_TARGET_LONG_SIZE];
  65.  
  66.   unsigned char day[NLM_TARGET_LONG_SIZE];
  67.  
  68. } NlmNAME(External_Version_Header);
  69.  
  70.  
  71. typedef struct nlmNAME(external_copyright_header)
  72. {
  73.  
  74.   /* The header is recognized by "CoPyRiGhT=" in the stamp field. */
  75.  
  76.   char stamp[10];
  77.  
  78.   unsigned char copyrightMessageLength[1];
  79.  
  80.   /* There is a variable length field here called 'copyrightMessage'
  81.      that is the length specified by copyrightMessageLength. */
  82.  
  83. } NlmNAME(External_Copyright_Header);
  84.  
  85.  
  86. typedef struct nlmNAME(external_extended_header)
  87. {
  88.  
  89.   /* The header is recognized by "MeSsAgEs" in the stamp field. */
  90.  
  91.   char stamp[8];
  92.  
  93.   unsigned char languageID[NLM_TARGET_LONG_SIZE];
  94.  
  95.   unsigned char messageFileOffset[NLM_TARGET_LONG_SIZE];
  96.  
  97.   unsigned char messageFileLength[NLM_TARGET_LONG_SIZE];
  98.  
  99.   unsigned char messageCount[NLM_TARGET_LONG_SIZE];
  100.  
  101.   unsigned char helpFileOffset[NLM_TARGET_LONG_SIZE];
  102.  
  103.   unsigned char helpFileLength[NLM_TARGET_LONG_SIZE];
  104.  
  105.   unsigned char RPCDataOffset[NLM_TARGET_LONG_SIZE];
  106.  
  107.   unsigned char RPCDataLength[NLM_TARGET_LONG_SIZE];
  108.  
  109.   unsigned char sharedCodeOffset[NLM_TARGET_LONG_SIZE];
  110.  
  111.   unsigned char sharedCodeLength[NLM_TARGET_LONG_SIZE];
  112.  
  113.   unsigned char sharedDataOffset[NLM_TARGET_LONG_SIZE];
  114.  
  115.   unsigned char sharedDataLength[NLM_TARGET_LONG_SIZE];
  116.  
  117.   unsigned char sharedRelocationFixupOffset[NLM_TARGET_LONG_SIZE];
  118.  
  119.   unsigned char sharedRelocationFixupCount[NLM_TARGET_LONG_SIZE];
  120.  
  121.   unsigned char sharedExternalReferenceOffset[NLM_TARGET_LONG_SIZE];
  122.  
  123.   unsigned char sharedExternalReferenceCount[NLM_TARGET_LONG_SIZE];
  124.  
  125.   unsigned char sharedPublicsOffset[NLM_TARGET_LONG_SIZE];
  126.  
  127.   unsigned char sharedPublicsCount[NLM_TARGET_LONG_SIZE];
  128.  
  129.   unsigned char sharedDebugRecordOffset[NLM_TARGET_LONG_SIZE];
  130.  
  131.   unsigned char sharedDebugRecordCount[NLM_TARGET_LONG_SIZE];
  132.  
  133.   unsigned char sharedInitializationOffset[NLM_TARGET_ADDRESS_SIZE];
  134.  
  135.   unsigned char SharedExitProcedureOffset[NLM_TARGET_ADDRESS_SIZE];
  136.  
  137.   unsigned char productID[NLM_TARGET_LONG_SIZE];
  138.  
  139.   unsigned char reserved0[NLM_TARGET_LONG_SIZE];
  140.  
  141.   unsigned char reserved1[NLM_TARGET_LONG_SIZE];
  142.  
  143.   unsigned char reserved2[NLM_TARGET_LONG_SIZE];
  144.  
  145.   unsigned char reserved3[NLM_TARGET_LONG_SIZE];
  146.  
  147.   unsigned char reserved4[NLM_TARGET_LONG_SIZE];
  148.  
  149.   unsigned char reserved5[NLM_TARGET_LONG_SIZE];
  150.  
  151. } NlmNAME(External_Extended_Header);
  152.  
  153.  
  154. typedef struct nlmNAME(external_custom_header)
  155. {
  156.  
  157.   /* The header is recognized by "CuStHeAd" in the stamp field. */
  158.   char stamp[8];
  159.  
  160.   /* Length of this header.  */
  161.   unsigned char length[NLM_TARGET_LONG_SIZE];
  162.  
  163.   /* Offset to data.  */
  164.   unsigned char dataOffset[NLM_TARGET_LONG_SIZE];
  165.  
  166.   /* Length of data.  */
  167.   unsigned char dataLength[NLM_TARGET_LONG_SIZE];
  168.  
  169.   /* Stamp for this customer header--we recognize "CyGnUsEx".  */
  170.   char dataStamp[8];
  171.  
  172. } NlmNAME(External_Custom_Header);
  173.