htnehead.cc

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/* 
 *      HT Editor
 *      htnehead.cc
 *
 *      Copyright (C) 1999-2002 Stefan Weyergraf (stefan@weyergraf.de)
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License version 2 as
 *      published by the Free Software Foundation.
 *
 *      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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "htatom.h"
#include "htne.h"
#include "httag.h"
#include "formats.h"
#include "snprintf.h"

static ht_mask_ptable neheader[]=
{
        {"magic",                                                       STATICTAG_EDIT_WORD_LE("00000000")},
        {"version",                                             STATICTAG_EDIT_BYTE("00000002")},
        {"revision",                                            STATICTAG_EDIT_BYTE("00000003")},
        {"offset of entry table",                       STATICTAG_EDIT_WORD_LE("00000004")},
        {"size of entry table",                         STATICTAG_EDIT_WORD_LE("00000006")},
        {"crc",                                                 STATICTAG_EDIT_DWORD_LE("00000008")},
        {"flags",                                                       STATICTAG_EDIT_WORD_LE("0000000c")" "STATICTAG_FLAGS("0000000c", ATOM_NE_FLAGS_STR)},
        {"autodata",                                            STATICTAG_EDIT_WORD_LE("0000000e")},
        {"heap min",                                            STATICTAG_EDIT_WORD_LE("00000010")},
        {"stack min",                                           STATICTAG_EDIT_WORD_LE("00000012")},
        {"CS:IP",                                                       STATICTAG_EDIT_WORD_LE("00000016")":"STATICTAG_EDIT_WORD_LE("00000014")},
        {"SS:SP",                                                       STATICTAG_EDIT_WORD_LE("0000001a")":"STATICTAG_EDIT_WORD_LE("00000018")},
        {"number of segments",                          STATICTAG_EDIT_WORD_LE("0000001c")},
        {"number of module references",         STATICTAG_EDIT_WORD_LE("0000001e")},
        {"size of non-resident name table",     STATICTAG_EDIT_WORD_LE("00000020")},
        {"offset of segment table",                     STATICTAG_EDIT_WORD_LE("00000022")},
        {"offset of resource table",                    STATICTAG_EDIT_WORD_LE("00000024")},
        {"offset of resident names table",              STATICTAG_EDIT_WORD_LE("00000026")},
        {"offset of module reference table",    STATICTAG_EDIT_WORD_LE("00000028")},
        {"offset of imported names table",              STATICTAG_EDIT_WORD_LE("0000002a")},
        {"offset of non-resident names table",  STATICTAG_EDIT_DWORD_LE("0000002c")},
        {"number of movable entries",                   STATICTAG_EDIT_WORD_LE("00000030")},
        {"segment alignment shift count",               STATICTAG_EDIT_WORD_LE("00000032")},
        {"number of resource segments",         STATICTAG_EDIT_WORD_LE("00000034")},
        {"target os",                                           STATICTAG_EDIT_BYTE("00000036")" "STATICTAG_DESC_BYTE("00000036", ATOM_NE_OS_STR)},
        {"additional flags",                            STATICTAG_EDIT_BYTE("00000037")},
        {"offset of return thunks",                     STATICTAG_EDIT_WORD_LE("00000038")},
        {"offset of segment reference bytes",   STATICTAG_EDIT_WORD_LE("0000003a")},
        {"minimum code swap area size",         STATICTAG_EDIT_WORD_LE("0000003c")},
        {"expected os version",                         STATICTAG_EDIT_WORD_LE("0000003e")},
        {0, 0}
};

static int_hash ne_os[] =
{
        {NE_OS_UNKNOWN, "all"},
        {NE_OS_OS2, "OS/2"},
        {NE_OS_WINDOWS, "Windows"},
        {NE_OS_DOS4, "DOS 4.x"},
        {0, 0}
};

static ht_tag_flags_s ne_flags[] =
{
        {-1, "NE - file characteristics"},
        {0,  "[00] solo data"},
        {1,  "[01] instance data"},
        {2,  "[02] per-process library initialization"},
        {3,  "[03] protected mode only"},
        {4,  "[04] 8086 instructions"},
        {5,  "[05] 80286 instructions"},
        {6,  "[06] 80386 instructions"},
        {7,  "[07] fpu instructions"},
        {8,  "[08] w0"},
        {9,  "[09] w1"},
        {10, "[10] w2"},
        {11, "[11] bound as family app"},
        {12, "[12] reserved"},
        {13, "[13] errors in image"},
        {14, "[14] reserved"},
        {15, "[15] not a process"},
        {0, 0}
};

static ht_view *htneheader_init(bounds *b, ht_streamfile *file, ht_format_group *group)
{
        ht_ne_shared_data *ne_shared=(ht_ne_shared_data *)group->get_shared_data();

        int h=ne_shared->hdr_ofs;
        ht_uformat_viewer *v=new ht_uformat_viewer();
        v->init(b, DESC_NE_HEADER, VC_EDIT | VC_SEARCH, file, group);
        ht_mask_sub *m=new ht_mask_sub();
        m->init(file, 0);

        register_atom(ATOM_NE_OS, ne_os);
        register_atom(ATOM_NE_FLAGS, ne_flags);

        char info[128];
        ht_snprintf(info, sizeof info, "* NE header at offset %08x", ne_shared->hdr_ofs);
        m->add_mask(info);
        m->add_staticmask_ptable(neheader, h, false);
        v->insertsub(m);

        return v;
}

format_viewer_if htneheader_if = {
        htneheader_init,
        0
};

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