IDA简易教程(9)

for (int i = 0;

i < PRODUCTS_COUNT; i++) {

if (! check_product( products[i].category)) {

printf(\product !!!\\n\

break; }

if

(products[i].category == SOFTWARE) {

if (!

check_software(

products[i].p.software.info)) {

printf(\ software !!!\\n\

break; } } pop ecx

test eax, eax

jnz short product_is_valid

push offset aInvalidProduct ; format call _printf pop ecx

jmp short exit

; ------------------------------------------------------------

product_is_valid: ; CODE XREF: main+E0j mov edx, esi shl edx, 4 add edx, esi

cmp [ebx+edx*8+product_t.category], SOFTWARE

jnz short print_product mov ecx, esi shl ecx, 4 add ecx, esi push

[ebx+ecx*8+product_t.p.software.info] ; software_info

call check_software pop ecx

test eax, eax

jnz short print_product

push offset aInvalidSoftwar ; format call _printf pop ecx

jmp short exit

; -----------------------------------------------------------

print_product: ; CODE XREF: main+FBj main+110j

imul eax, esi, 88h add eax, ebx

push eax ; product call print_product pop ecx inc esi cmp esi, 4

print_product(&produc jl short loop_verify_print_product

exit: ; CODE XREF: main+EDj main+11Dj

ts[i]); }

free(products); }

push ebx ; block call _free pop ecx pop edi pop esi pop ebx pop ebp retn main endp

; [COLLAPSED AREA .text2. PRESS KEYPAD \TO EXPAND]

; [COLLAPSED AREA .text2. PRESS KEYPAD \TO EXPAND]

; Section 2. (virtual address 0000A000) ; Virtual size : 00003000 ( 12288.)

; Section size in file : 00002800 ( 10240.)

; Offset to raw data for section: 00009400 ; Flags C0000040: Data Readable Writable ; Alignment : 16 bytes ?

; ------------------------------------------------------------

; Segment type: Pure data

; Segment permissions: Read/Write

_data segment para public 'DATA' use32 assume cs:_data ;org 40A000h

; [COLLAPSED AREA .data1. PRESS KEYPAD \

TO EXPAND]

customer_t customers[] = {

{ 1,

\ 'm' }, { 2,

\ 'm' }, { 3,

\ 'f' }, { 0 } };

customers dd 1 ; id ; DATA XREF: main+11o db

'Peter',0,0,0,0,0,0,0,0,0,0,0,0,0,0, ... ; name

dd 'm' ; sex dd 2 ; id db

'John',0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,... ; name

dd 'm' ; sex dd 3 ; id db

'Mary',0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,... ; name

dd 'f' ; sex dd 0 ; id db

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, ... ; name

db 0 ; name dd 0 ; sex

aIdaQuickstartG db 'IDA QuickStart Guide',0 ; DATA XREF: ... db 6Bh dup(0)

book_t ida_book = { \QuickStart

Guide\

softwares_t softwares = { 3,

{ { { PC,

WINDOWS|DOS,

DISASSEMBLY }, \ { { PC|MAC, WINDOWS|OS_X,

RECOVERY }, \

softwares dd 3 ; count ; DATA XREF: main+62o

dd PC or WINDOWS or DOS or DISASSEMBLY; softs.info

db 'IDA

Pro',0,0,0,0,0,0,0,0,0,0,0,0,0, ...; softs.name

dd PC or MAC or WINDOWS or OS_X or

{ { PC, WINDOWS,

CRYPTOGRAPHY }, \ } };

RECOVERY; softs.info db

'PhotoRescue',0,0,0,0,0,0,0,0,0,0,0, ...; softs.name

dd PC or WINDOWS or CRYPTOGRAPHY; softs.info db

'aCrypt',0,0,0,0,0,0,0,0,0,0,0,0,0,0,...; softs.name

aWeDonTSellHardwareForThe db 'We don',27h,'t sell hardware ... ; DATA XREF: check_product+Eo ...

aCustomer04xSC db 'CUSTOMER X: %s (%c)',0Ah,0 ; ...

aBookS db 'BOOK: %s',0Ah,0 ; DATA XREF: print_book+6o

aSoftwareS db 'SOFTWARE: %s:',0 ; DATA XREF: ...

aPc db ' PC',0 ; DATA XREF: print_software+27r

aMac db ' MAC',0 ; DATA XREF: print_software+3Br

asc_40A31B db ';',0 ; DATA XREF: print_software+45r

aWindows db ' WINDOWS',0 ; DATA XREF: ... aDos db ' DOS',0 ; DATA XREF: print_software+72r

aOsX db ' OS-X',0 ; DATA XREF: print_software+89r

asc_40A331 db ';',0 ; DATA XREF: print_software+93r

aDisassembly db ' DISASSEMBLY',0 ; DATA XREF: ...

aRecovery db ' RECOVERY',0 ; DATA XREF: ...

aCryptography db ' CRYPTOGRAPHY',0 ; DATA XREF: ...

asc_40A358 db 0Ah,0 ; DATA XREF: print_software+D8r

aProduct04x db 'PRODUCT X: ',0 ; DATA XREF: ...

aCustomers db 'CUSTOMERS:',0Ah,0 ; DATA XREF: ...

aProducts db 0Ah ; DATA XREF: main+C0o db 'PRODUCTS:',0Ah,0

aInvalidProduct db 'Invalid product !!!',0Ah,0 ; ... aInvalidSoftwar db 'Invalid software !!!',0Ah,0 ; ...

TOP 附录

#include

// our structures // ==============

// information about our customers struct customer_t { // a typical structure long id; char name[32];

char sex; // 'm'ale - 'f'emale };

// we sell books struct book_t {

char title[128]; // an ASCII string };

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说教育文库IDA简易教程(9)在线全文阅读。