1 /* SCTP kernel Implementation: User API extensions. 2 * 3 * peeloff.c 4 * 5 * Distributed under the terms of the LGPL v2.1 as described in 6 * http://www.gnu.org/copyleft/lesser.txt 7 * 8 * This file is part of the user library that offers support for the 9 * SCTP kernel Implementation. The main purpose of this 10 * code is to provide the SCTP Socket API mappings for user 11 * application to interface with the SCTP in kernel. 12 * 13 * This implementation is based on the Socket API Extensions for SCTP 14 * defined in <draft-ietf-tsvwg-sctpsocket-10.txt. 15 * 16 * (C) Copyright IBM Corp. 2001, 2003 17 * 18 * Written or modified by: 19 * Sridhar Samudrala <sri (at) us.ibm.com> 20 */ 21 22 #include <sys/socket.h> /* struct sockaddr_storage, setsockopt() */ 23 #include <netinet/sctp.h> /* SCTP_SOCKOPT_BINDX_* */ 24 #include <errno.h> 25 26 /* Branch off an association into a seperate socket. This is a new SCTP API 27 * described in the section 8.2 of the Sockets API Extensions for SCTP. 28 * This is implemented using the getsockopt() interface. 29 */ 30 int 31 sctp_peeloff(int fd, sctp_assoc_t associd) 32 { 33 sctp_peeloff_arg_t peeloff; 34 socklen_t peeloff_size = sizeof(peeloff); 35 int err; 36 37 peeloff.associd = associd; 38 peeloff.sd = 0; 39 err = getsockopt(fd, SOL_SCTP, SCTP_SOCKOPT_PEELOFF, &peeloff, 40 &peeloff_size); 41 if (err < 0) { 42 return err; 43 } 44 45 return peeloff.sd; 46 47 } /* sctp_peeloff() */ 48
