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In-depth understanding of const,mutable and volatile in C + +

I always think that const represents a constant, a constant is a value that cannot be modified, but does not understand the implementation of const, and even do not know the existence of mutable and volatile, recently in the book to see this part of the knowledge, so this article will be detailed analysis of these keywords. Here are a few questions to consider first: 1. The difference between const int A and int const A. 2. The difference between const char* s and Char *const S.

Python automatic attack script

"% memory_fileregistry.register_global_options (config, commands. Command) registry.register_global_options (config, addrspace. Baseaddressspace) from Volatility.plugins.registry.registryapi import Registryapifrom Volatility.plugins.registry.lsadump Import hashdumpregistry = registryapi (config) registry.populate_offsets () SAM_ offset = Nonesys_offset = nonefor offset in registry.all_offsets:if registry.all_offsets[offset].endswith ("\\SAM") : Sam_offset = offset print "[*] sam:0x%

Php to get apk package information, php to get apk package _ PHP Tutorial

; getString ($ this-> get32 ($ o); $ o + = 8; break; default: throw new Exception ('block Type error', 3); break;} $ this-> skip ($ o); $ child = array (); while ($ this-> length> $ left) {$ c = $ this-> parse Block (); if ($ props $ c) $ child [] = $ c; if ($ left =-1 $ c ['type'] = self: END_TAG) {$ left = $ this-> length; break ;}} if ($ this-> length! = $ Left) throw new Exception ('block Overflow error', 4); if ($ props) {$ props ['type'] = $ type; $ props ['size'] = $ size; $ props ['chi

ALICTF2016FlappyPigWriteUp (customs clearance policy of the winning team FlappyPig) (2)

a = k [0], B = k [1], c = k [2], d = k [3];/* cache key */ For (I = 0; I {/* Basic cycle start */ Z-= (y Y-= (z Sum-= delta;/* end cycle */ } V [0] = y; V [1] = z; } Voidmain () { Unsigned long plain2 [2] = {0xed17ff5d, 0xe987f714 }; Decrypt (plain2, key ); Printf ("% 08x % 08x", plain2 [0], plain2 [1]); Unsigned long plain3 [2] = {0xdca14228, 0x32f7970a }; Decrypt (plain3, key ); Print

Steps for PHP to get the APK package information

($this->length > $left) { $c = $this->parseblock (); if ($props $c) $child [] = $c; if ($left = =-1 $c [' type '] = = Self::end_tag) { $left = $this->length; Break } } if ($this->length! = $left) throw new Exception (' Block Overflow Error ', 4); if ($props) { $props [' type '] = $type; $props [' size '] = $size; $props [' child '] = $child; return $props; }else { return false; } } Private function Getattributevalue ($a) { $type = $a [' Val_type ']; $data = $a [' Val_data ']; Switch ($type)

MD5 Algorithm Implementation

, uint32_t c, uint32_t d) const {char res[33] = {0}; sprintf(res, "%08x%08x%08x%08x", _reverse(a), _reverse(b), _reverse(c), _reverse(d));return res;}inline uint32_t MD5::_reverse(const uint32_t n) const {return ((n 0x000000ff) }void MD5::prepare(const char *buf, int32_t len, char *outbuf, int32_t outlen) { int3

Wchar_t wide character set research and com bstr Variant

: 11 62 EC 4E // Press enter \ r 0d \ n 0a Printf ( " Char * Text: % s 0x % 08x 0x % 08x \ nansi encoding: " , Lpsztext, lpsztext ,* Lpsztext); print_hex_to_file (stdout ,( Const Uint8_t *) lpsztext, strlen (lpsztext) + 1 , 16 ); // BSTR bstrtext compiled by this function = _ Com_util: convertstringtobstr (lpsztext); wprintf (L " BSTR text: % s 0x % 08x 0

PHP Get APK Package information method, PHP get apk package _php Tutorial

; if ($left = =-1 $c [' type '] = = Self::end_tag) {$left = $this->length; Break }} if ($this->length! = $left) throw new Exception (' Block Overflow Error ', 4); if ($props) {$props [' type '] = $type; $props [' size '] = $size; $props [' child '] = $child; return $props; }else {return false; }} Private Function Getattributevalue ($a) {$type = $a [' Val_type ']; $data = $a [' Val_data ']; Switch ($type) {case Self::type_string:return $this->getstrin

PHP uniqid function Slow execution related issues

*) AMP;TV (struct timezone *) NULL); SEC = (int) tv.tv_sec; USEC = (int) (tv.tv_usec% 0x100000); /* The max value USEC can has are 0xf423f, so we use only five hex * digits for usecs. */if (more_entropy) {spprintf (uniqid, 0, "%s%08x%05x%.8f", prefix, sec, USEC, Php_combinED_LCG (Tsrmls_c) * 10); } else {spprintf (uniqid, 0, "%s%08x%05x", prefix, sec, usec); } return_string (uniqid, 0);

Linux User space Access Physical address __linux

Because the project requires, you need to access the actual physical address in Linux userspace. i) User space can be accessed directly by opening the/DEV/MEM device file and then mmap () innuendo static int Read_type () { void * map_base; FILE *f; int type,fd; #define READ_REG32 (REG) (* (volatile int *) (reg)) #define alloc_size (1024) fd = open ("/ Dev/mem ", O_RDWR | O_sync); if (FD) { printf ("Success to Open/dev/mem fd=%08x\n", F

PDF File Standard Fuzzer

#! /Usr/bin/perl# Jeremy Brown [0xjbrown41@gmail.com/jbrownsec.blogspot.com]# Pdf fuzzer -- TAKE IT TO THE HEAD# :) Have fun :) Use PDF: Create;Use Getopt: Std; @ Overflow = (A x 8200, A x 11000, A x 110000, A x 550000, A x 1100000, A x 2200000, "x99" x 12000000, quot; // AAAA quot; x 250, quot; \ AAAA quot; x 250 ); @ Fmtstring = ("% n", "% p ", "% s", "% d", "% x ","% S % p % x % d", "%. 1024d "," %. 1025d "," %. 2048d "," %. 2049d "," %. 4096d "," %. 4097d ","% 99999999999 s", "%

What does it mean to use static to define a variable in a header file

than two variables of the same name will appear this error.Speculation, after all, is to prove that this speculation has to be verified by writing code. This is verified by using the static definition variable in the header file, including the header file in multiple source files, and then outputting the address of the variable in each source file, changing the value of the variable in one source file, and outputting it in another source file. If the output of each source file is different, it

I also want to learn C language-Chapter 6: Address and layout of variables in memory

I learned these two functions early this morning. printf is used to format the output to a standard output device (usually a screen). scanf is a standard input device (generally a keyboard) enter a group of data. In fact, it is not difficult to master these two functions after several hours of practice! I found a problem, that is, why is there an (get address) before the parameter variable in the backend of scanf )!!! But not before the variables in printf ?! Here is an example: #include stdio.

How is the oemaddresstable memory ing table used by WinCE (Author: wogoyixikexie @ gliet)

, (L "-oalpatova (Va = 0x % 08x)/R/N", VA )); Return Va; } //------------------------------------------------------------------------------ // // Function: oalvatopa // // Converts a virtual address (VA) to a physical address (Pa). This routine // Uses the oemaddresstable defined in the platform. // Uint32 oalvatopa (void * PVA) { Oal_address_table * ptable = g_oaladdresstable; Uint32 Va = (uint32) PVA; Udint 32 Pa = 0; Oalmsg (oa

Obtain the Intel series CPU serial number

// Obtain the intelcpu ID: Void intelcpuiddlg: onbuttoncpuid (){Unsigned long S1, S2;Unsigned char vendor_id [] = "------------------";Cstring str1, str2, str3;_ ASM{XOR eax, eaxCpuidMoV dword ptr vendor_id, EBXMoV dword ptr vendor_id [+ 4], EDXMoV dword ptr vendor_id [+ 8], ECx}Str1.format ("% s", vendor_id );_ ASM // obtain the high 32-bit CPU ID{MoV eax, 01 HXOR edX, EDXCpuidMoV S2, eax}Str2.format ("% 08x-", S2 ); _ ASM // obtain the 64-bit low C

Windows Kernel Driver: a more stable way to locate real kiservicetable

;} // get KeServiceDescriptorTable rvadwKSDT-=(DWORD)hKernel;// find KiServiceTableif (!(dwKiServiceTable=FindKiServiceTable(hKernel,dwKSDT))) {printf("Can't find KiServiceTable.../n");return;} printf("KiServiceTable==%08X/n/nDumping 'old' ServiceTable:/n/n",dwKiServiceTable+dwKernelBase);// let's dump KiServiceTable contents// MAY FAIL!!!// should get right ServiceLimit here, but this is trivial in the kernel modeGetHeaders((PBYTE)hKernel,pfh,poh,psh

List hidden processes by reading kiwaitinlisthead

(stderr, "lineartophys return 0, page table not in/R/N ");Return 0;}// Fprintf (stderr, "lineartophys return % 08x/R/N", paddr );Return (pvoid) paddr;} Ulong getdata (pvoid ADDR){Ulong phys = (ulong) lineartophys (Pulong) g_pmapphysicalmemory, (pvoid) ADDR );If (Phys = 0) return 0;Pulong TMP = (Pulong) mapviewoffile (g_hmpm, 4, 0, Phys 0xfffff000, 0x1000 );If (TMP = 0 ){Exit (-1 );}Ulong ret = TMP [(Phys 0 xfff)> 2];Unmapviewoffile (TMP );Return re

Operating file in Windows Kernel Driver (reprinted 1)

| FILE_SYNCHRONOUS_IO_NONALERT * @ Return: read successful: STATUS_SUCCESS; read failed: NTSTATUS error code */ _ Inline NTSTATUS MyCreateFile (out phandle lpFileHandle, IN PUNICODE_STRING usFileName, In ulong dwDesiredAccess, In ulong dww.access, In ulong dwCreateDisposition, In ulong dwcreateoptions) { Ntstatus = status_unsuccessful; Object_attributes oaname; Io_status_block iosblock; If (lpfilehandle! = NULL usfilename! = NULL usfilename-> buffer! = NULL) { If (passive_level! = Kegetcurren

I am a USB flash drive for Linux (33) confused batch transmission (2)

(BCS-> tag! = US-> tag | BCS-> Status> us_bulk_stat_phase ){ 1052 us_debugp ("Bulk logical error \ n "); 1053 return usb_stor_transport_error; 1054} 1055 1056/* some broken devices report odd signatures, so we do not check them 1057 * forvalidity against the spec. we store the first one we see, 1058 * andcheck subsequent transfers for validity against this signature. 1059 */ 1060 if (! US-> bcs_signature ){ 1061 US-> bcs_signature = BCS-> signature; 1062 if (US-> bcs_signature! = Cpu_to_le32 (u

Com.2 using examples to illustrate the use of COM (set wallpaper with IActiveDesktop)

Active Desktop HRESULT HR = ::CoCreateInstance( clsid_activedesktop, NULL, clsctx_inproc_server, iid_iactivedesktop, (void*) pactivedesktop); if (FAILED(hr)) { printf("Create activedesktop failure:0x%08x\n",hr); return -1; }2.1 Call the SetWallpaper method to set the desktop wallpaper. uses_conversion; hr=pactivedesktop-setwallpaper( a2w("F:\\My Documents\\My pictures\\xinsrc_55203051817196711110236.jpg "), 0); if (FAILED(hr)) { printf("Set

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