vanhoefm

paramSmsManager.sendDataMessage(
   (String)localObject1,        // Destination address: Phone number entered by the user
   null,                        // Source address: null means the current default SMSC is used
   A,                           // Destination port: Random number between 16000 and 16099
   paramString.getBytes(),      // Data: "WhatsApp <code> WhatsApp internal use - safe to discard"
   (PendingIntent)localObject2, // Sent Intent: Not important for this discussion
   null                         // Delivery Intent: Not important for this discussion
);

vanhoefm

typedef char my_bool;

/*
  Check that scrambled message corresponds to the password; the function
  is used by server to check that recieved reply is authentic.

RETURN VALUE
  0  password is correct
  !0  password is invalid
*/

vanhoefm

-- Wireshark LUA script to handle Gamespy Packets
trivial_proto = Proto("gamespy","Gamespy Protocol")
-- XOR Cipher:
local tab = {  -- tab[i][j] = xor(i-1, j-1)
  {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, },
  {1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14, },
  {2, 3, 0, 1, 6, 7, 4, 5, 10, 11, 8, 9, 14, 15, 12, 13, },
  {3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12, },
  {4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11, },
  {5, 4, 7, 6, 1, 0, 3, 2, 13, 12, 15, 14, 9, 8, 11, 10, },

vanhoefm

#include <stdio.h>

int main(int argc, char *argv[], char *envp[])
{
	int esp;

	printf("env: %p\narg: %p\nesp: %p\n", envp, argv, &esp);
	while (*envp != NULL) {
		printf("%s\n", *envp);
		++envp;

vanhoefm

#define	SHELL_PATH	"/bin/sh"	/* Path of the shell.  */
#define	SHELL_NAME	"sh"		/* Name to give it.  */

static int do_system(const char *line)
{
	if (fork() == 0) {
		const char *new_argv[4];
		new_argv[0] = SHELL_NAME;
		new_argv[1] = "-c";
		new_argv[2] = line;

vanhoefm

int main()
{
	running_setuid = uidget();
	...
	if (running_setuid && privileged_mode == 0)
		disable_priv_mode();
	...	
	// start interactive shell or execute command
}

vanhoefm

struct malloc_chunk {
  INTERNAL_SIZE_T      prev_size;  /* Size of previous chunk (if free).  */
  INTERNAL_SIZE_T      size;       /* Size in bytes, including overhead. */

  struct malloc_chunk* fd;         /* double links -- used only if free. */
  struct malloc_chunk* bk;

  /* Only used for large blocks: pointer to next larger size.  */
  struct malloc_chunk* fd_nextsize; /* double links -- used only if free. */
  struct malloc_chunk* bk_nextsize;

vanhoefm

#include <string.h>
#include <stdlib.h>
#include <stdio.h>

int main(int argc, char *argv[])
{
  char *buf1 = malloc(128);
  char *buf2 = malloc(256);

  read(fileno(stdin), buf1, 200);

vanhoefm

#include <string.h>
#include <stdlib.h>
#include <stdio.h>

int main(int argc, char *argv[])
{
  char *buf1 = malloc(256);
	char *buf2 = malloc(512);
	char *buf3 = malloc(1024);
	char *top, *aftertop;

vanhoefm

/* Take a chunk off a bin list */
void unlink(malloc_chunk *P, malloc_chunk *BK, malloc_chunk *FD)
{
	FD = P->fd;
	BK = P->bk;
	FD->bk = BK;
	BK->fd = FD;
}