gprs_udp.h

gprs协议实现

#ifndef GPRS_UDP_H
#define GPRS_UDP_H  1
/* UDP port numbers */
#define ECHOPORT    7       	/* Echo */
#define MINEPORT    1024    	/* Start of ephemeral (temporary) port numbers */
#define MAXEPORT    9999    	/* Max ephemeral port number */
#define MYPORT      9000	/* my used UDP Port No. */

/* Prototypes */
short is_udp(short len);
void make_udp(NODE *srcep, NODE *destp, unsigned short dlen);
void UDP_Handler (unsigned short len);
unsigned short check_udp(UDPKT *udp, unsigned long sip, unsigned long dip, unsigned short ulen);
void swap_udp(UDPKT *udp);
void udp_transmit(NODE *sp, NODE *dp, void *dat, unsigned short len);
void getudp_srce(NODE *np);
short  getudp_locdest(NODE *np);
#endif
/* EOF */