#include <stdio.h>
#include <stdlib.h>
#include <sys/select.h>  
#include <sys/socket.h>  
#include <arpa/inet.h>  
#include <netdb.h> 
#include <string.h> 
#include <unistd.h> 
#include <netinet/in.h> 
#include <fcntl.h> 
#include <time.h> 
#include <sys/types.h>
#include <pthread.h>
#include <net/if.h>
#include <errno.h>
#include <assert.h>
#define HELLO_WORLD_SERVER_PORT    6666 
#define LENGTH_OF_LISTEN_QUEUE 1
#define BUFFER_SIZE 1024
#define FILE_NAME_MAX_SIZE 512
#define SERVER_PORT 8888
#define BUFF_LEN 512
#define SERVER_IP "172.0.5.182"
#define SOL_IP		0
#define IP_RETOPTS	7
#define	IPOPT_CONTROL		0x00
#define IPOPT_COPY		0x80
#define IPOPT_LSRR	(3 |IPOPT_CONTROL|IPOPT_COPY)
#define MAXLINE   256
#define MAX_MMSG_NUM 10
//#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )

//#define CMSG_DATA(cmsg)	((void *)((char *)(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr))))
int send_opt(int fd1){
	
	
	int clifd;
	struct sockaddr_in ser_addr;
	char buf[BUFF_LEN] = "TEST UDP MSG!\n";
	char option[41]="\x83\x0b\x04\x01\x02\x03\x04\x05\x06\x07\x08";
	struct msghdr  msg;
	 //struct sockaddr_un servaddr ; 
	struct iovec iov  ;
	 struct cmsghdr *cmptr;  
	 char buf_con[CMSG_SPACE(11)];
         int  fd ; 
	char* p;
clifd=fd1;
	
	//clifd = socket(AF_INET, SOCK_DGRAM, 0);
	//if(clifd < 0)
     //{
         //printf("create socket fail!\n");
         //return -1;
     //}
    ser_addr.sin_family = AF_INET;
    //ser_addr.sin_addr.s_addr = inet_addr(SERVER_IP);
    ser_addr.sin_addr.s_addr = htonl(INADDR_ANY);//0;  //注意网络序转换
    ser_addr.sin_port = htons(SERVER_PORT);  //注意网络序转换
	iov.iov_base =(void*)buf;
	iov.iov_len = MAXLINE;
	
	msg.msg_namelen =sizeof(ser_addr);
	msg.msg_name=&ser_addr;
	msg.msg_iovlen =1;
	msg.msg_iov =&iov;
	 /*cmptr = CMSG_FIRSTHDR(&msg);  
	 cmptr->cmsg_level = SOL_IP;    
	 cmptr->cmsg_type = IP_RETOPTS; 
	//msg.msg_control=option;
	//msg.msg_controllen =9;
	CMSG_DATA(cmptr) = option; 
	//cmptr->cmsg_level = SOL_SOCKET;  
	cmptr->cmsg_len = CMSG_LEN(9); */
	msg.msg_control = buf_con;
	msg.msg_controllen = sizeof(buf_con);
	cmptr=CMSG_FIRSTHDR(&msg);
	cmptr->cmsg_level = SOL_IP; 
	cmptr->cmsg_type = IP_RETOPTS; 
	cmptr->cmsg_len = CMSG_LEN(11);
	p=CMSG_DATA(cmptr);
	memcpy(p,option,11);
	sendmsg(clifd, &msg, 0);
	printf("ok\n");
	return 0;
}






int main()
{
	int clifd = socket(AF_INET, SOCK_DGRAM, 0);
	if(clifd < 0)
     {
         printf("create socket fail!\n");
         return -1;
     }
	while(1)
	{
		send_opt(clifd);
	}
	
	return 0;
}