RuhNetConsulting
/
rtpengine
mirror of https://github.com/sipwise/rtpengine


								#ifndef _STUN_H_

								#define _STUN_H_


								#include <string.h>

								#include <arpa/inet.h>


								static inline int is_stun(const char *bx, int len) {

									const unsigned char *b = (const void *) bx;

									const u_int32_t *u;


									if (len < 20)

										return 0;

									if ((b[0] & 0xb0) != 0x00)

										return 0;

									if ((b[3] & 0x3) != 0x0)

										return 0;

									u = (const void *) &b[4];

									if (*u != htonl(0x2112A442))

										return 0;


									return 1;

								}


								int stun(const char *buf, int len);


								#endif