1 /* NLM (NetWare Loadable Module) support for BFD.
2    Copyright 1993, 1994 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
21 
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 */
46 
47 /* NLM Header */
48 
49 /* The version header is one of the optional auxiliary headers and
50    follows the fixed length and variable length NLM headers. */
51 
52 typedef struct nlmNAME(external_version_header)
53 {
54 
55   /* The header is recognized by "VeRsIoN#" in the stamp field. */
56   char stamp[8];
57 
58   unsigned char majorVersion[NLM_TARGET_LONG_SIZE];
59 
60   unsigned char minorVersion[NLM_TARGET_LONG_SIZE];
61 
62   unsigned char revision[NLM_TARGET_LONG_SIZE];
63 
64   unsigned char year[NLM_TARGET_LONG_SIZE];
65 
66   unsigned char month[NLM_TARGET_LONG_SIZE];
67 
68   unsigned char day[NLM_TARGET_LONG_SIZE];
69 
70 } NlmNAME(External_Version_Header);
71 
72 
73 typedef struct nlmNAME(external_copyright_header)
74 {
75 
76   /* The header is recognized by "CoPyRiGhT=" in the stamp field. */
77 
78   char stamp[10];
79 
80   unsigned char copyrightMessageLength[1];
81 
82   /* There is a variable length field here called 'copyrightMessage'
83      that is the length specified by copyrightMessageLength. */
84 
85 } NlmNAME(External_Copyright_Header);
86 
87 
88 typedef struct nlmNAME(external_extended_header)
89 {
90 
91   /* The header is recognized by "MeSsAgEs" in the stamp field. */
92 
93   char stamp[8];
94 
95   unsigned char languageID[NLM_TARGET_LONG_SIZE];
96 
97   unsigned char messageFileOffset[NLM_TARGET_LONG_SIZE];
98 
99   unsigned char messageFileLength[NLM_TARGET_LONG_SIZE];
100 
101   unsigned char messageCount[NLM_TARGET_LONG_SIZE];
102 
103   unsigned char helpFileOffset[NLM_TARGET_LONG_SIZE];
104 
105   unsigned char helpFileLength[NLM_TARGET_LONG_SIZE];
106 
107   unsigned char RPCDataOffset[NLM_TARGET_LONG_SIZE];
108 
109   unsigned char RPCDataLength[NLM_TARGET_LONG_SIZE];
110 
111   unsigned char sharedCodeOffset[NLM_TARGET_LONG_SIZE];
112 
113   unsigned char sharedCodeLength[NLM_TARGET_LONG_SIZE];
114 
115   unsigned char sharedDataOffset[NLM_TARGET_LONG_SIZE];
116 
117   unsigned char sharedDataLength[NLM_TARGET_LONG_SIZE];
118 
119   unsigned char sharedRelocationFixupOffset[NLM_TARGET_LONG_SIZE];
120 
121   unsigned char sharedRelocationFixupCount[NLM_TARGET_LONG_SIZE];
122 
123   unsigned char sharedExternalReferenceOffset[NLM_TARGET_LONG_SIZE];
124 
125   unsigned char sharedExternalReferenceCount[NLM_TARGET_LONG_SIZE];
126 
127   unsigned char sharedPublicsOffset[NLM_TARGET_LONG_SIZE];
128 
129   unsigned char sharedPublicsCount[NLM_TARGET_LONG_SIZE];
130 
131   unsigned char sharedDebugRecordOffset[NLM_TARGET_LONG_SIZE];
132 
133   unsigned char sharedDebugRecordCount[NLM_TARGET_LONG_SIZE];
134 
135   unsigned char sharedInitializationOffset[NLM_TARGET_ADDRESS_SIZE];
136 
137   unsigned char SharedExitProcedureOffset[NLM_TARGET_ADDRESS_SIZE];
138 
139   unsigned char productID[NLM_TARGET_LONG_SIZE];
140 
141   unsigned char reserved0[NLM_TARGET_LONG_SIZE];
142 
143   unsigned char reserved1[NLM_TARGET_LONG_SIZE];
144 
145   unsigned char reserved2[NLM_TARGET_LONG_SIZE];
146 
147   unsigned char reserved3[NLM_TARGET_LONG_SIZE];
148 
149   unsigned char reserved4[NLM_TARGET_LONG_SIZE];
150 
151   unsigned char reserved5[NLM_TARGET_LONG_SIZE];
152 
153 } NlmNAME(External_Extended_Header);
154 
155 
156 typedef struct nlmNAME(external_custom_header)
157 {
158 
159   /* The header is recognized by "CuStHeAd" in the stamp field. */
160   char stamp[8];
161 
162   /* Length of this header.  */
163   unsigned char length[NLM_TARGET_LONG_SIZE];
164 
165   /* Offset to data.  */
166   unsigned char dataOffset[NLM_TARGET_LONG_SIZE];
167 
168   /* Length of data.  */
169   unsigned char dataLength[NLM_TARGET_LONG_SIZE];
170 
171   /* Stamp for this customer header--we recognize "CyGnUsEx".  */
172   char dataStamp[8];
173 
174 } NlmNAME(External_Custom_Header);
175