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patchdiff2/parser.cpp at master · CrackerCat/patchdiff2 · GitHub
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/*
Patchdiff2
Portions (C) 2010 - 2011 Nicolas Pouvesle
Portions (C) 2007 - 2009 Tenable Network Security, Inc.
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, see <http://www.gnu.org/licenses/>.
*/
#
include
"
precomp.h
"
#
include
"
parser.h
"
#
include
"
sig.h
"
#
include
"
os.h
"
#
include
"
pchart.h
"
#
include
"
system.h
"
/*
------------------------------------------------
*/
/*
function : parse_idb
*/
/*
description: generates a list of signatures for
*/
/*
the current idb
*/
/*
------------------------------------------------
*/
slist_t
*
parse_idb
() {
slist_t
*sl;
psig_t
*sig;
size_t
fct_num, i;
qvector<
ea_t
> class_l;
fct_num =
get_func_qty
();
sl =
siglist_init
(fct_num,
NULL
);
if
(!sl) {
return
NULL
;
}
for
(i =
0
; i < fct_num; i++) {
sig =
sig_generate
(i, class_l);
if
(sig) {
//
removes 1 line jump functions
if
(sig->
sig
==
0
|| sig->
lines
<=
1
) {
sig_free
(sig);
}
else
{
siglist_add
(sl, sig);
}
}
}
if
(!
siglist_realloc
(sl, class_l.
size
())) {
siglist_free
(sl);
return
NULL
;
}
for
(i =
0
; i < class_l.
size
(); i++) {
sig =
sig_class_generate
(class_l[i]);
if
(sig) {
siglist_add
(sl, sig);
}
}
siglist_sort
(sl);
return
sl;
}
/*
------------------------------------------------
*/
/*
function : parse_fct
*/
/*
description: generates a list of signatures for
*/
/*
the current function
*/
/*
------------------------------------------------
*/
slist_t
*
parse_fct
(
ea_t
ea,
char
options) {
slist_t
* sl;
psig_t
* sig;
func_t
* fct;
int
i, k;
pflow_chart_t
* fchart;
short
opcodes[
256
];
char
buf[
512
];
fct =
get_func
(ea);
if
(!fct) {
return
NULL
;
}
if
(!
pget_func_name
(ea, buf,
sizeof
(buf))) {
return
NULL
;
}
fchart =
new
pflow_chart_t
(fct);
sl =
siglist_init
(fchart->
nproper
,
NULL
);
if
(!sl) {
return
NULL
;
}
for
(i =
0
; i < fchart->
nproper
; i++) {
memset
(opcodes,
'
\0
'
,
sizeof
(opcodes));
sig =
sig_init
();
if
(!sig) {
siglist_free
(sl);
delete
fchart;
return
NULL
;
}
sig_set_start
(sig, fchart->
blocks
[i].
startEA
);
sig_set_name
(sig, buf);
for
(k =
0
; k < fchart->
nsucc
(i); k++) {
sig_add_sref
(sig, fchart->
blocks
[i].
succ
[k].
ea
, fchart->
blocks
[i].
succ
[k].
type
,
CHECK_REF
);
}
sig_add_block
(sig, opcodes, fchart->
blocks
[i].
startEA
, fchart->
blocks
[i].
endEA
,
1
, options);
sig_calc_sighash
(sig, opcodes,
1
);
siglist_add
(sl, sig);
}
siglist_sort
(sl);
delete
fchart;
return
sl;
}
/*
------------------------------------------------
*/
/*
function : parse_second_idb
*/
/*
description: generates a list of signatures for
*/
/*
another idb
*/
/*
------------------------------------------------
*/
slist_t
*
parse_second_idb
(
char
**file,
options_t
*opt) {
char
ext[
10
];
qsnprintf
(ext,
sizeof
(ext),
"
.%s
"
,
IDB_EXT
);
*file =
askfile_c
(
0
, ext,
"
IDA Database
"
);
if
(!*file) {
msg
(
"
Failed to open second IDB
\n
"
);
return
NULL
;
}
return
system_parse_idb
(
BADADDR
, *file, opt);
}
/*
------------------------------------------------
*/
/*
function : parse_second_fct
*/
/*
description: generates a list of signatures for
*/
/*
another fct
*/
/*
------------------------------------------------
*/
slist_t
*
parse_second_fct
(
ea_t
ea,
char
*file,
options_t
*opt){
return
system_parse_idb
(ea, file, opt);
}
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