how can I make getaddrinfo return 'sctp' protocol?

Asked Jun 03 '16 at 01:45

Active Jun 03 '16 at 01:45

Viewed 162 times

struct addrinfo hint, *result;
int res, sfd;

memset(&hint, 0, sizeof(struct addrinfo));
hint.ai_family   = AF_INET;
hint.ai_socktype = SOCK_STREAM;

res = getaddrinfo(NULL, port, &hint, &result);

I think getaddrinfo should return two addrinfo when using 'SOCK_STREAM'. One protocol is tcp, the other protocol is sctp. However, getaddrinfo only return tcp protocol. I don't know why ?

I use ubuntu 14.04, linux kernel 3.19.0 and install sctp protocol by typing: apt-get install libsctp-dev

asked Jun 03 '16 at 01:45

Pengcheng

SCTP is using SOCK_SEQPACKET not SOCK_STREAM. – Steffen Ullrich Jun 03 '16 at 02:17
sctp_socket = socket(PF_INET, SOCK_STREAM, IPPROTO_SCTP); url: http://www.openss7.org/man2html?sctp(7) – Pengcheng Jun 03 '16 at 02:19
So do you have CONFIG_SCTP_TCP_COMPATIBLE set in your kernel configuration which according to this man page is required to have SOCK_STREAM available? – Steffen Ullrich Jun 03 '16 at 02:24

how can I make getaddrinfo return 'sctp' protocol?

0 Answers0