/* * sdpdemo: A simple sdp application that recieves SAP/SDP data. * * (c) 2002 Argonne National Laboratory/University of Chicago */#include <sys/time.h>#include <ctype.h>#include <inttypes.h>#include <stdio.h>#include <stdlib.h>#include <string.h>#include <unistd.h>#include "uclconf.h"#include "config_unix.h"#include "config_win32.h"#include "debug.h"#include "memory.h"#include "sap.h"#include "sdp.h"static voidsap_handler(sap_packet *packet){  sdp *session = NULL;  char *new_payload = NULL;  print_sap_packet(packet);   session = sdp_parse(packet->payload);  printf("Original Packet: \n++++\n%s++++\n", session->original);  sdp_print(session);  new_payload = sdp_make(session);  if(strcmp(packet->payload, new_payload) != 0)    printf("The two sdp payloads are different!\n");  xfree(new_payload);  sdp_free(session);  /* This is causing a seg fault, and a memory leak */  /*  xfree(packet); */}intmain(){  struct sap *session = NULL;  struct timeval timeout;  session = sap_init("224.2.127.254", 9875, 127, sap_handler);  timeout.tv_sec = 0;  timeout.tv_usec = 0;  while(1)     sap_recv(session, &timeout);  sap_done(session);  return 0;}