00001 /* 00002 * HT Editor 00003 * nestruct.h 00004 * 00005 * Copyright (C) 1999-2002 Stefan Weyergraf (stefan@weyergraf.de) 00006 * 00007 * This program is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License version 2 as 00009 * published by the Free Software Foundation. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00019 */ 00020 00021 #ifndef __NESTRUCT_H_ 00022 #define __NESTRUCT_H_ 00023 00024 #define NE_MAGIC0 'N' 00025 #define NE_MAGIC1 'E' 00026 00027 #define NE_OS_UNKNOWN 0x0000 00028 #define NE_OS_OS2 0x0001 00029 #define NE_OS_WINDOWS 0x0002 00030 #define NE_OS_DOS4 0x0003 00031 00032 #define NE_FLAGS_NOTAPROCESS 0x8000 /* Not a process */ 00033 #define NE_FLAGS_ERRORS 0x2000 /* Errors in image */ 00034 #define NE_FLAGS_SELFLOAD 0x0800 00035 00036 #define NE_FLAGS_NOTWINCOMPAT 0x0100 /* Not compatible with P.M. Windowing */ 00037 #define NE_FLAGS_WINCOMPAT 0x0200 /* Compatible with P.M. Windowing */ 00038 #define NE_FLAGS_WINAPI 0x0300 /* Uses P.M. Windowing API */ 00039 00040 #define NE_FLAGS_FLOAT 0x0080 /* Floating-point instructions */ 00041 #define NE_FLAGS_I80386 0x0040 /* 80386 instructions */ 00042 #define NE_FLAGS_I80286 0x0020 /* 80286 instructions */ 00043 #define NE_FLAGS_I8086 0x0010 /* 8086 instructions */ 00044 #define NE_FLAGS_PROT_ONLY 0x0008 /* Runs in protected mode only */ 00045 #define NE_FLAGS_PPLI 0x0004 /* Per-Process Library Initialization */ 00046 #define NE_FLAGS_INST 0x0002 /* Instance data */ 00047 #define NE_FLAGS_SOLO 0x0001 /* Solo data */ 00048 00049 struct NE_HEADER { 00050 word magic; // Magic number 00051 byte ver; // Version number 00052 byte rev; // Revision number 00053 word enttab; // Offset of Entry Table 00054 word cbenttab; // Number of bytes in Entry Table 00055 dword crc; // Checksum of whole file 00056 word flags; // Flag word 00057 word autodata; // Automatic data segment number 00058 word heap; // Initial heap allocation 00059 word stack; // Initial stack allocation 00060 dword csip; // Initial CS:IP setting 00061 dword sssp; // Initial SS:SP setting 00062 word cseg; // Count of file segments 00063 word cmod; // Entries in Module Reference Table 00064 word cbnrestab; // Size of non-resident name table 00065 word segtab; // Offset of Segment Table 00066 word rsrctab; // Offset of Resource Table 00067 word restab; // Offset of resident name table 00068 word modtab; // Offset of Module Reference Table 00069 word imptab; // Offset of Imported Names Table 00070 dword nrestab; // Offset of Non-resident Names Table 00071 word cmovent; // Count of movable entries 00072 word align; // Segment alignment shift count 00073 word cres; // Count of resource segments 00074 byte os; // Target Operating system 00075 byte flagsothers; // Other .EXE flags 00076 word pretthunks; // offset to return thunks 00077 word psegrefbytes; // offset to segment ref. bytes 00078 word swaparea; // Minimum code swap area size 00079 word expver; // Expected Windows version number 00080 }; 00081 00082 /* 00083 * segment 00084 */ 00085 00086 struct NE_SEGMENT { 00087 word offset HTPACKED; 00088 word size HTPACKED; 00089 word flags HTPACKED; 00090 word minalloc HTPACKED; 00091 }; 00092 00093 #define NE_DATA 0x0001 00094 00095 #define NE_ITERATED 0x0008 00096 #define NE_MOVABLE 0x0010 00097 #define NE_SHARABLE 0x0020 00098 #define NE_PRELOAD 0x0040 00099 #define NE_READONLY 0x0080 00100 #define NE_HASRELOC 0x0100 00101 #define NE_CONFORMING 0x0200 00102 /* 2 bits priv-level */ 00103 #define NE_DISCARDABLE 0x1000 00104 #define NE_32BIT 0x2000 00105 #define NE_HUGE 0x4000 00106 00107 /* 00108 * entrypoint table 00109 */ 00110 00111 struct NE_ENTRYPOINT_HEADER { 00112 byte entry_count HTPACKED; 00113 byte seg_index HTPACKED; 00114 }; 00115 00116 /* 00H 1 Entry point flags 00117 Bit(s) Significance 00118 0 0 = entry point not exported 00119 1 = entry point exported 00120 1 0 = entry point uses instance data 00121 1 = entry point uses single data 00122 2 Reserved 00123 3Ä7 Number of stack parameter words 00124 01H 2 Int 3FH instruction (CDH 3FH) 00125 03H 1 Segment number of entry point 00126 04H 2 Offset of entry point within segment 00127 */ 00128 00129 #define NE_ENT_FLAGS_EXPORTED 0x01 00130 #define NE_ENT_FLAGS_SINGLE_DATA 0x02 00131 00132 #define NE_ENT_FLAGS_PARAM_WORDS 0xf8 00133 00134 struct NE_ENTRYPOINT_MOVABLE { 00135 byte flags HTPACKED; 00136 word int3f HTPACKED; 00137 byte seg HTPACKED; 00138 word offset HTPACKED; 00139 }; 00140 00141 /* 00H 1 Entry point flags (See above) 00142 01H 2 Offset of entry point within segment*/ 00143 00144 struct NE_ENTRYPOINT_FIXED { 00145 byte flags HTPACKED; 00146 word offset HTPACKED; 00147 }; 00148 00149 /* relocations */ 00150 00151 struct NE_RELOC_HEADER { 00152 byte type HTPACKED; 00153 byte flags HTPACKED; 00154 word src_ofs HTPACKED; 00155 }; 00156 00157 #define NE_RF_ADD 0x04 /* Additive fixup */ 00158 00159 #define NE_RF_RT_MASK 0x03 /* Reference type mask */ 00160 00161 #define NE_RF_INTERNAL 0x00 /* Internal reference */ 00162 #define NE_RF_IMPORT_ORD 0x01 /* Import by ordinal */ 00163 #define NE_RF_IMPORT_NAME 0x02 /* Import by name */ 00164 #define NE_RF_OSFIXUP 0x03 /* Operating system fixup */ 00165 00166 #define NE_RT_MASK 0x0f /* Source type mask */ 00167 #define NE_RT_OFS8 0x00 /* lo byte */ 00168 #define NE_RT_SEG16 0x02 /* 16-bit segment */ 00169 #define NE_RT_PTR32 0x03 /* 32-bit pointer */ 00170 #define NE_RT_OFS16 0x05 /* 16-bit offset */ 00171 #define NE_RT_PTR48 0x0B /* 48-bit pointer */ 00172 #define NE_RT_OFS32 0x0D /* 32-bit offset */ 00173 00174 struct NE_RELOC_INTERNAL { 00175 byte seg; 00176 byte reserved; 00177 word ofs; 00178 }; 00179 00180 struct NE_RELOC_IMPORT { 00181 word module; 00182 union { 00183 word ord; 00184 word name_ofs; 00185 }; 00186 }; 00187 00188 struct NE_RELOC_FIXUP { 00189 word type; 00190 word reserved; 00191 }; 00192 00193 extern byte NE_HEADER_struct[]; 00194 extern byte NE_SEGMENT_struct[]; 00195 extern byte NE_ENTRYPOINT_HEADER_struct[]; 00196 extern byte NE_ENTRYPOINT_MOVABLE_struct[]; 00197 extern byte NE_ENTRYPOINT_FIXED_struct[]; 00198 extern byte NE_RELOC_HEADER_struct[]; 00199 extern byte NE_RELOC_INTERNAL_struct[]; 00200 extern byte NE_RELOC_IMPORT_struct[]; 00201 extern byte NE_RELOC_FIXUP_struct[]; 00202 00203 #endif /* __NESTRUCT_H_ */ 00204
1.3.5