icmp.h

实用的程序代码

/*
 * ICMP Header File
 */

#ifndef _ICMP_H
#define	_ICMP_H

#define ICMP_ECHO_REQ_TYPE	8	 /* ping req type */
#define ICMP_ECHO_CODE	        0        /* ping req/reply code */
#define ICMP_ECHO_REPLY_TYPE	0	 /* ping reply type */
#define IP_PROTO_ICMP           1        /* protocol field in IP header */ 
#define ICMP_HDR_LEN            8        /* icmp hdr len */

// icmp header structure
struct xilnet_icmp_hdr {
  unsigned char type;    
  unsigned char	code;
  unsigned short check_sum;
  unsigned short ident;
  unsigned short seq_no;
};


#endif	/* _ICMP_H */