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/**
* @namespace biew_plugins_auto
* @file plugins/bin/arch.c
* @brief This file contains implementation of Archive file format decoder.
* @version -
* @remark this source file is part of Binary vIEW project (BIEW).
* The Binary vIEW (BIEW) is copyright (C) 1995 Nick Kurshev.
* All rights reserved. This software is redistributable under the
* licence given in the file "Licence.en" ("Licence.ru" in russian
* translation) distributed in the BIEW archive.
* @note Requires POSIX compatible development system
*
* @author Nick Kurshev
* @since 1999
* @note Development, fixes and improvements
**/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "bmfile.h"
#include "bin_util.h"
#include "biewhelp.h"
#include "bconsole.h"
#include "biewutil.h"
#include "reg_form.h"
#include "tstrings.h"
#include "plugins/bin/arch.h"
#include "plugins/disasm.h"
#include "biewlib/pmalloc.h"
#include "biewlib/biewlib.h"
#include "biewlib/kbd_code.h"
ar_hdr arch;
static unsigned long __FASTCALL__ ShowARCHHeader( void )
{
unsigned long fpos,ldat;
unsigned evt;
TWindow * w;
struct tm * tm;
char sout[50];
fpos = BMGetCurrFilePos();
w = CrtDlgWndnls(" This is COFF or a.out archive ",54,6);
twGotoXY(1,1);
strncpy(sout,(char *)arch.ar_name,16);
sout[16] = 0;
twPrintF("Name = %s\n",sout);
strncpy(sout,(char *)arch.ar_date,12);
sout[12] = 0;
ldat = atol(sout);
tm = localtime((time_t *)&ldat);
strftime(sout,sizeof(sout),"%X %x",tm);
twPrintF("Date = %s\n",sout);
strncpy(sout,(char *)arch.ar_uid,6);
sout[6] = 0;
twPrintF("Owner UID = %s\n",sout);
strncpy(sout,(char *)arch.ar_gid,6);
sout[6] = 0;
twPrintF("Owner GID = %s\n",sout);
strncpy(sout,(char *)arch.ar_mode,8);
sout[8] = 0;
twPrintF("File mode = %s\n",sout);
strncpy(sout,(char *)arch.ar_size,10);
sout[10] = 0;
twPrintF("File size = %s bytes",sout);
do
{
evt = GetEvent(drawEmptyPrompt,NULL,w);
}
while(!(evt == KE_ESCAPE || evt == KE_F(10)));
CloseWnd(w);
return fpos;
}
static tBool __NEAR__ __FASTCALL__ archReadModList(memArray *obj,unsigned nnames,unsigned long *addr)
{
unsigned long foff,flen;
unsigned i;
char stmp[80];
flen = bmGetFLength();
for(i = 0;i < nnames;i++)
{
tBool is_eof;
/**
Some archives sometimes have big and sometimes little endian.
Here is a horrible attempt to determine it.
*/
foff = addr[i];
if(foff > flen) foff = ByteSwapL(foff);
if(IsKbdTerminate()) break;
bmReadBufferEx(stmp,sizeof(ar_sub_hdr),foff,BM_SEEK_SET);
is_eof = bmEOF();
stmp[sizeof(ar_sub_hdr)-2] = 0;
if(!ma_AddString(obj,is_eof ? CORRUPT_BIN_MSG : stmp,True)) break;
if(is_eof) break;
}
return True;
}
static unsigned long __FASTCALL__ archModLst( void )
{
memArray *obj;
unsigned long *addr;
unsigned nnames;
unsigned long rnames,bnames;
unsigned long fpos,flen;
fpos = BMGetCurrFilePos();
flen = bmGetFLength();
rnames = bmReadDWordEx(sizeof(ar_hdr),BM_SEEK_SET);
bnames = ByteSwapL(rnames);
/**
Some archives sometimes have big and sometimes little endian.
Here is a horrible attempt to determine it.
*/
if(!(nnames = (unsigned)min(rnames,bnames))) { NotifyBox(NOT_ENTRY,"Archive modules list"); return fpos; }
/**
Some archives sometimes have length and sometimes number of entries
Here is a horrible attempt to determine it.
*/
if(!(nnames%4)) nnames/=sizeof(unsigned long);
if(!(obj = ma_Build(nnames,True))) return fpos;
if(!(addr = PMalloc(sizeof(unsigned long)*nnames))) goto exit;
bmReadBufferEx(addr,sizeof(unsigned long)*nnames,sizeof(ar_hdr)+sizeof(unsigned long),BM_SEEK_SET);
if(archReadModList(obj,nnames,addr))
{
int ret;
ret = ma_Display(obj," Archive modules list ",LB_SELECTIVE,-1);
if(ret != -1)
{
/**
Some archives sometimes have big and sometimes little endian.
Here is a horrible attempt to determine it.
*/
fpos = addr[ret];
if(fpos > flen) fpos = ByteSwapL(fpos);
fpos += sizeof(ar_sub_hdr);
}
}
free(addr);
exit:
ma_Destroy(obj);
return fpos;
}
static tBool __FASTCALL__ IsArch( void )
{
char str[16];
bmReadBufferEx(str,sizeof(str),0,BM_SEEK_SET);
return strncmp(str,"!<arch>\012",8) == 0;
}
static void __FASTCALL__ ArchInit( void )
{
bmReadBufferEx(&arch,sizeof(arch),0,BM_SEEK_SET);
}
static void __FASTCALL__ ArchDestroy( void )
{
}
static tBool __FASTCALL__ archAddrResolv(char *addr,unsigned long cfpos)
{
/* Since this function is used in references resolving of disassembler
it must be seriously optimized for speed. */
tBool bret = True;
if(cfpos < sizeof(ar_hdr))
{
strcpy(addr,"arch.h:");
strcpy(&addr[7],Get2Digit(cfpos));
}
else bret = False;
return bret;
}
static unsigned long __FASTCALL__ archHelp( void )
{
hlpDisplay(10001);
return BMGetCurrFilePos();
}
static int __FASTCALL__ arch_platform( void ) { return DISASM_DEFAULT; }
REGISTRY_BIN archTable =
{
"arch (Archive)",
{ "ArcHlp", NULL, "ModLst", NULL, NULL, NULL, NULL, NULL, NULL, NULL },
{ archHelp, NULL, archModLst, NULL, NULL, NULL, NULL, NULL, NULL, NULL },
IsArch, ArchInit, ArchDestroy,
ShowARCHHeader,
NULL,
NULL,
arch_platform,
NULL,
archAddrResolv,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
};
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