htmachoimg.cc

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/*
 *      HT Editor
 *      htmachoimg.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 "log.h"
#include "htmachoimg.h"
#include "htpal.h"
#include "htstring.h"
#include "formats.h"
#include "snprintf.h"
#include "tools.h"

#include "machostruc.h"
#include "macho_analy.h"

static ht_view *htmachoimage_init(bounds *b, ht_streamfile *file, ht_format_group *group)
{
        ht_macho_shared_data *macho_shared=(ht_macho_shared_data *)group->get_shared_data();

//      if (macho_shared->ident.e_ident[MACHO_EI_CLASS]!=MACHOCLASS32) return 0;

        LOG("%s: Mach-O: loading image (starting analyser)...", file->get_filename());
        MachoAnalyser *p = new MachoAnalyser();
        p->init(macho_shared, file);

        bounds c=*b;
        ht_group *g=new ht_group();
        g->init(&c, VO_RESIZE, DESC_MACHO_IMAGE"-g");
        AnalyInfoline *head;

        c.y+=2;
        c.h-=2;
        ht_macho_aviewer *v=new ht_macho_aviewer();
        v->init(&c, DESC_MACHO_IMAGE, VC_EDIT | VC_GOTO | VC_SEARCH, file, group, p, macho_shared);

        c.y-=2;
        c.h=2;
        head=new AnalyInfoline();
        head->init(&c, v, ANALY_STATUS_DEFAULT);

        v->attachInfoline(head);

/* find lowest/highest address */
        Address *low = NULL;
        Address *high = NULL;

        MACHOAddress l, h;
        l = (dword)-1;
        h = 0;
        MACHO_SECTION *s = macho_shared->sections.sections;
        for (UINT i=0; i < macho_shared->sections.count; i++) {
                if (macho_valid_section(s, 0)) {
                        if (s->vmaddr < l) l = s->vmaddr;
                        if ((s->vmaddr + s->vmsize > h) && s->vmsize) h=s->vmaddr + s->vmsize - 1;
                }
                s++;
        }
        low = p->createAddress32(l);
        high = p->createAddress32(h);

        ht_analy_sub *analy=new ht_analy_sub();

        if (low->compareTo(high) < 0) {
                analy->init(file, v, p, low, high);
                v->analy_sub = analy;
                v->insertsub(analy);
        } else {
                delete analy;
                v->done();
                delete v;
                head->done();          
                delete head;
                g->done();
                delete g;
                delete high;
                delete low;
                return NULL;
        }
        
        delete high;
        delete low;

        v->sendmsg(msg_complete_init, 0);

        Address *tmpaddr = NULL;
/*      switch (macho_shared->ident.e_ident[MACHO_EI_CLASS]) {
                case MACHOCLASS32: {
                        tmpaddr = p->createAddress32(macho_shared->header32.e_entry);
                        break;
                }
                case MACHOCLASS64: {
                        tmpaddr = p->createAddress64(macho_shared->header64.e_entry);
                        break;
                }
        }*/
//      tmpaddr = p->createAddress32(macho_shared->header32.e_entry);
        
//      v->gotoAddress(tmpaddr, NULL);
//      delete tmpaddr;
        MACHO_COMMAND_U **pp = macho_shared->cmds.cmds;
        for (UINT i=0; i < macho_shared->cmds.count; i++) {
                if (((*pp)->cmd.cmd == LC_UNIXTHREAD) || ((*pp)->cmd.cmd == LC_THREAD)) {
                        MACHO_THREAD_COMMAND *s = (MACHO_THREAD_COMMAND*)*pp;
                        Address *entry;
                        switch (macho_shared->header.cputype) {
                        case MACHO_CPU_TYPE_POWERPC:
                                entry = p->createAddress32(s->state.state_ppc.srr0);
                                break;
                        case MACHO_CPU_TYPE_I386:
                                entry = p->createAddress32(s->state.state_i386.eip);
                                break;
                        default: assert(0);
                        }
                        v->gotoAddress(entry, NULL);
                        delete entry;
                        break;
                }
                pp++;
        }

        g->insert(head);
        g->insert(v);

        g->setpalette(palkey_generic_window_default);

//      macho_shared->v_image=v;
        return g;
}

format_viewer_if htmachoimage_if = {
        htmachoimage_init,
        0
};

/*
 *      CLASS ht_macho_aviewer
 */
void ht_macho_aviewer::init(bounds *b, char *desc, int caps, ht_streamfile *File, ht_format_group *format_group, Analyser *Analy, ht_macho_shared_data *MACHO_shared)
{
        ht_aviewer::init(b, desc, caps, File, format_group, Analy);
        macho_shared = MACHO_shared;
}

void ht_macho_aviewer::setAnalyser(Analyser *a)
{
        ((MachoAnalyser *)a)->macho_shared = macho_shared;
        ((MachoAnalyser *)a)->file = file;
        analy = a;
        analy_sub->setAnalyser(a);
}

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