#include <unistd.h> 
#include <stdlib.h> 
#include <stdio.h> 
#include <errno.h> 
#include <netinet/ip.h> 
#include <netinet/sctp.h> 
 
/* Build: gcc -lrt -lsctp bindx.test.c -o bindxtest */ 
 
int 
main(int argc, char* argv[]) 
{ 
	int	rc; 
	int	len; 
	int	out; 
	int	val = 32 * 1024; 
	struct sockaddr_storage	client_addr; 
	struct sockaddr_in6		addrs[2]; 
	struct sctp_paddrparams	params; 
	 
	out = socket(AF_INET6, SOCK_SEQPACKET, IPPROTO_SCTP); 
	if (out == -1) { 
		printf("socket failed, out=%d, errno=%d, %s\n", out, errno, strerror(errno)); 
		exit(-1); 
	} 
	 
	printf("socket = %d\n",out); 
	rc = setsockopt(out, SOL_SOCKET, SO_SNDBUF, &val, sizeof(val)); 
	if (rc < 0) { 
		printf("setsockopt SNDBUF failed rc=%d, %s\n", rc, strerror(errno)); 
		exit(-1); 
	} 
	 
	rc = setsockopt(out, SOL_SOCKET, SO_RCVBUF, &val, sizeof(val)); 
	if (rc < 0) { 
		printf("setsockopt RCVBUF failed rc=%d, %s\n", rc, strerror(errno)); 
		exit(-1); 
	} 
 
	memset((void *)&addrs, 0, sizeof(addrs)); 
	if (inet_pton(AF_INET6, "::ffff:192.168.1.168", &addrs[0].sin6_addr) < 0) 
		printf("inet_pton(0) failed\n"); 
	addrs[0].sin6_family = AF_INET6; 
	addrs[0].sin6_port = htons(5060); 
	 
	if (inet_pton(AF_INET6, "::ffff:192.168.3.168", &addrs[1].sin6_addr) < 0) 
		printf("inet_pton(1) failed\n"); 
	addrs[1].sin6_family = AF_INET6; 
	addrs[1].sin6_port = htons(5060); 
 
//printf("sctp_bindx(SCTP_BINDX_ADD_ADDR)\n");

	rc = sctp_bindx(out, (struct sockaddr*)&addrs[0], 1, SCTP_BINDX_ADD_ADDR); 
	if (rc < 0) { 
		printf("sctp_bindx failed rc=%d, %s\n", rc, strerror(errno)); 
		exit(-1); 
	} 
	 
	rc = listen(out,2); 
	if (rc < 0) { 
		printf("listen failed rc=%d, %s\n", rc, strerror(errno)); 
		exit(-1); 
	} 
	 
	len = sizeof(client_addr); 
	if (getsockname(out, (struct sockaddr *)&client_addr, &len) < 0) { 
		printf("getsockname(%d) failed: %s\n", out, strerror(errno)); 
		exit(-1); 
	} 
	 
	system("cat /proc/net/sctp/eps"); 
	 
//printf("sctp_bindx(SCTP_BINDX_ADD_ADDR)\n");

	rc = sctp_bindx(out, (struct sockaddr *)&addrs[1], 1, SCTP_BINDX_ADD_ADDR); 
	if (rc == -1) { 
		printf("bind-1 failed, rc=%d, errno=%d, %s\n", rc, errno, strerror(errno)); 
		exit(-1); 
	} 
	 
	system("cat /proc/net/sctp/eps"); 
	 
//printf("sctp_bindx(SCTP_BINDX_REM_ADDR)\n");

	rc = sctp_bindx(out, (struct sockaddr *)&addrs[1], 1, SCTP_BINDX_REM_ADDR); 
	if (rc == -1) { 
		printf("bind-2 failed, rc=%d, errno=%d, %s\n", rc, errno, strerror(errno)); 
		exit(-1); 
	} 
	 
	system("cat /proc/net/sctp/eps"); 
	 
	exit(0); 
}