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58 lines
2.4 KiB
C
58 lines
2.4 KiB
C
/* msdos.h - MS-DOS and derived executable header information
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Copyright (C) 1999-2021 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifndef _MSDOS_H
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#define _MSDOS_H
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#define IMAGE_DOS_SIGNATURE 0x5a4d /* MZ */
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#define IMAGE_OS2_SIGNATURE 0x454e /* NE */
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#define IMAGE_OS2_SIGNATURE_LE 0x454c /* LE */
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#define IMAGE_OS2_SIGNATURE_LX 0x584c /* LX */
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#define IMAGE_NT_SIGNATURE 0x00004550 /* PE\0\0 */
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struct external_DOS_hdr
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{
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/* DOS header fields - always at offset zero in the EXE file. */
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char e_magic[2]; /* Magic number. */
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char e_cblp[2]; /* Bytes on last page of file. */
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char e_cp[2]; /* Pages in file. */
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char e_crlc[2]; /* Relocations. */
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char e_cparhdr[2]; /* Size of header in paragraphs. */
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char e_minalloc[2]; /* Minimum extra paragraphs needed. */
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char e_maxalloc[2]; /* Maximum extra paragraphs needed. */
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char e_ss[2]; /* Initial (relative) SS value. */
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char e_sp[2]; /* Initial SP value. */
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char e_csum[2]; /* Checksum. */
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char e_ip[2]; /* Initial IP value. */
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char e_cs[2]; /* Initial (relative) CS value. */
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char e_lfarlc[2]; /* File address of relocation table. */
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char e_ovno[2]; /* Overlay number. */
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char e_res[4][2]; /* Reserved words, all 0x0. */
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char e_oemid[2]; /* OEM identifier. */
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char e_oeminfo[2]; /* OEM information. */
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char e_res2[10][2]; /* Reserved words, all 0x0. */
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char e_lfanew[4]; /* File address of new exe header, usually 0x80. */
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char dos_message[16][4]; /* Other stuff, always follow DOS header. */
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};
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/* The actual DOS header only includes up to the e_ovno field. */
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#define DOS_HDR_SIZE (offsetof (struct external_DOS_hdr, e_res))
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#endif /* _MSDOS_H */
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