08x

", argv[0]);Exit (1);} if (fd = open (argv[1], o_rdonly) = = =-1) {fprintf (stderr, "Can ' t Open file%s.", argv[1]);Exit (1);} fprintf (stdout, "Dump content of the ELF file '%s '", argv[1]); fprintf (stdout, "part i:elf File Header ... "); /* Read ELF file header */if (read (FD, BUF, 52)! = 52) {fprintf (stderr, "read error");Close (FD); Exit (1);} E_hdr_ptr = (MYELF32_EHDR *) buf; fprintf (stdout, "(Magic number and other info) E_ident:%s",E_hdr_ptr->e_ident);fprintf (stdout, "(Object file ty

The distribution of C + + variables in memory in the written test often, although simple, but also easy to forget, so make a summary in this to deepen the impression.Write a test program first: Copy Code code as follows: #include #include int g_i = 100; int g_j = 200; int G_k, g_h; int main () { const int MAXN = 100; int *p = (int*) malloc (MAXN * sizeof (int)); static int s_i = 5; static int s_j = 10; static int s_k; static int s_h; int i = 5; int j = 10; int k = 20; in

Before reading this article, if you don't even know what the stack is, read the basics behind the article first.People who have been exposed to programming know that high-level languages can access data in memory through variable names. So how are these variables stored in memory? How does the program use these variables? The following is an in-depth discussion of this. The C language code below, if not specifically stated, uses the release version compiled by VC by default.First, let's look at

,n2_max,n3_max=0; P_max = (int*) malloc (10); printf ("Print max program address \ n"); printf ("In max:0x%08x\n\n", Max); printf ("Print max incoming parameter address \ n"); printf ("In max:0x%08x\n\n", i); printf ("Print static variable address \ n" in Max function); printf ("0x%08x\n", n1_max),//print the memory address of each local variable

!// Welcome to http://webcrazy.yeah.net to get more information////------------------------------------------------------------ # Define win32thread_offset 0x124# Define hwndlist_offset 0xb8# Define hwndhandle_offset 0x0# Define hwndnext_offset 0x2c# Define hwndparent_offset 0x30# Define hwndrect_offset 0x3c# Define hwndproc_offset 0x5c // Rect: copied from windef. hTypedef struct tagrect{Long left;Long top;Long right;Long bottom;} Rect, * prect; Typedef struct taghwndrect {Rect windowrect;Rect

(PBuf), null,null);//Safe release, in order to develop a good coding habits, special to make this macro definition#define GRS_SAFERELEASE (I)if (NULL! = (I)) {(I)->release ();(I) =null; }//Detect if the previous operation was successful#define Grs_com_check (HR,...)if (FAILED (HR)) {grs_printf (__va_args__);goto clear_up; }int_tmain (intARGC, tchar* argv[]) {CoInitialize (NULL);//Create OLE DB init interfaceIDBInitialize *pdbinit = NULL; IDBProperties *pidbproperties = NULL;//Set li

Void rtl_test () {const int bufsize = 1024; uchar * pbuf1 = (uchar *) exallocatepool (pagedpool, bufsize ); // allocate memory kdprint ("allocated memory address pbuf1 = % 08x", pbuf1); uchar * pbuf2 = (uchar *) exallocatepool (pagedpool, bufsize ); // allocate memory kdprint ("allocated memory address pbuf2 = % 08x", pbuf2); rtlzeromemory (pbuf1, bufsize ); // kdprint ("initializing the memory address pbuf

: # Clear the frame pointer register (EBP) # so that once we get into debugging C code, # stack backtraces will be terminated properly. movl $0x0,%ebp # nuke frame pointer # Set the stack pointer movl $(bootstacktop),%esp # now to C code call i386_initThe EBP register has been set to 0 before jumping to the I386_init function. Now it's easy, start implementing the Mon_backtrace function.The experiment provides the READ_EBP () function, which allows us t

of the decryptionLongXxtea (Long* V,LongNLong*k);LongXxtea (Long* V,LongNLong*k) {unsignedLongz=v[n-1], y=v[0], sum=0, E, Delta=0x9e3779b9; Longp, q; if(N >1) {/*Encryption Process*/Q=6+ the/N; while(q-->0) {sum+ = DELTA; E = (Sum >>2) 3; for(p=0; p1; p++) y = v[p+1], z = v[p] + =MX; Y= v[0]; z = v[n-1] +=MX; } return 0; } Else if(N 1) {/*decryption Process*/N=-N; Q =6+ the/n; sum = q*DELTA; while(Sum! =0) {e= (Sum >>2) 3; for(p=n-1; P>0; p--) z = v[p-1], y = v[p]-=MX;

strcpy () functionOr a buffer overflow of ret2memcpy. If you are smart and lucky enough, you can apply this technology on your own.For a single free () Bug (free (BUF), the chunk of the Buf can be controlled by users ). -- [3. n times faster ---- [3.1-Multi-address Overwrite If you can write more than four bytes, you can not only put the shellcode or jumpcodeAnd can change multiple pointers at the same time to speed up cracking again. Of course, this requires the write-anything-anywhere permiss

" int_except_handler4 (Pexception_record, Exception_registration*, PCONTEXT, Pexception_record);////////////////////////////////////////////////////////////////////////////displays information about an exception frame and its corresponding scopetablevoidShowsehframe (vc_exception_registration*Pvcexcreg) {BOOL BVcExceptionHandler4= Pvcexcreg->handler = = (Farproc) _except_handler4;//_except_handler4 function of VC if(BVCEXCEPTIONHANDLER4) {//_except_handler4 function of VCprintf"frame:%

){Hr = HRESULT_FROM_WIN32 (GetLastError ());Break;}If (0 = MultiByteToWideChar (CP_ACP, 0, ptszInString,-1, * ppwszOutString, nSizeCount )){Hr = HRESULT_FROM_WIN32 (GetLastError ());Break;}}While (FALSE );If (FAILED (hr )){SAFE_ARRAYDELETE (* ppwszOutString );_ Tprintf (_ T ("Internal error (hr = 0x % 08x) \ n"), hr );}Return (hr );}# Endif // UNICODEHRESULT editorOpen (WCHAR * _ wma_file, iwdeskadataeditor ** ppEditor, IWMHeaderInfo ** ppHeaderInfo){

IDBCreateCommand failed with error code:%08x\n"), hres); hres = Pidbcreatecommand->createcommand (NULL, Iid_icommandtext, (iunknown**) picommandtext); Com_success (hres, _t ("Create interface IDBCreateCommand failed with error code:%08x\n"), hres); hres = Picommandtext->setcommandtext (Dbguid_default, lpsql); Com_success (hres, _t ("failed to set SQL statement, error code:%

pressed stack. Stack top: +-------------------------------(Low memory) +-----------Last EBP------------(the current SP) +------------EIP----------------(RET addr) +------------arg0--------------- +------------Arg1--------------- + ...----------------------------(high memory) int mon_backtrace (int argc, char **argv, struct trapframe *tf) { //Your code here. uint32_t M_EBP; uint32_t M_eip; uint32_t arg0, Arg1, arg2, Arg3, Arg4; uint32_t *p_bp; M_EBP = READ_EBP (); while

; icsk_pending = ICSK_TIME_PROBE0 ){Timer_active = 4;Timer_expires = icsk-> icsk_timeout;} Else if (timer_pending ( sk-> sk_timer )){Timer_active = 2;Timer_expires = sk-> sk_timer.expires;} Else {Timer_active = 0;Timer_expires = jiffies;}/*If (src = wnps_in_aton ("127.0.0.1 ")){Printk ("got 127.0.0.1 ");Return;}*/If (srcp = 3306 | destp = 3306 ){Printk ("got 3306! \ N ");Seq_printf (f, "% 4d: % 08X: % 04X % 08X