| Austin Schuh | 8d0a285 | 2019-12-28 22:54:28 -0800 | [diff] [blame^] | 1 | .\" (C) Copyright Sridhar Samudrala IBM Corp. 2004, 2005. |
| 2 | .\" |
| 3 | .\" Permission is granted to distribute possibly modified copies |
| 4 | .\" of this manual provided the header is included verbatim, |
| 5 | .\" and in case of nontrivial modification author and date |
| 6 | .\" of the modification is added to the header. |
| 7 | .\" |
| 8 | .TH SCTP_GETLADDRS 3 2005-10-25 "Linux 2.6" "Linux Programmer's Manual" |
| 9 | .SH NAME |
| 10 | sctp_getladdrs \- Returns all locally bound addresses on a socket. |
| 11 | .SH SYNOPSIS |
| 12 | .nf |
| 13 | .B #include <sys/types.h> |
| 14 | .B #include <sys/socket.h> |
| 15 | .B #include <netinet/sctp.h> |
| 16 | .sp |
| 17 | .BI "int sctp_getladdrs(int " sd ", sctp_assoc_t " assoc_id , |
| 18 | .BI " struct sockaddr **" addrs ); |
| 19 | .sp |
| 20 | .BI "void sctp_freeladdrs(struct sockaddr *" addrs ); |
| 21 | .fi |
| 22 | .SH DESCRIPTION |
| 23 | .BR sctp_getladdrs |
| 24 | returns all locally bound addresses on a socket. On return, |
| 25 | .I addrs |
| 26 | will point to a dynamically allocated packed array of |
| 27 | .B sockaddr |
| 28 | structures of the appropriate type for each local address. The caller |
| 29 | should use |
| 30 | .BR sctp_freeladdrs |
| 31 | to free the memory. Note that the in/out parameter |
| 32 | .I addrs |
| 33 | must not be NULL. |
| 34 | .PP |
| 35 | If |
| 36 | .I sd |
| 37 | is an IPv4 socket, the addresses returned will be all IPv4 addresses. If |
| 38 | .I sd |
| 39 | is an IPv6 socket, the addresses returned can be a mix of IPv4 or IPv6 |
| 40 | addresses. |
| 41 | .PP |
| 42 | For one-to-many style sockets, |
| 43 | .I id |
| 44 | specifies the association to query. For one-to-one style sockets, |
| 45 | .I id |
| 46 | is ignored. |
| 47 | .PP |
| 48 | If the |
| 49 | .I id |
| 50 | field is set to 0, then the locally bound addresses are returned |
| 51 | without regard to any particular association. |
| 52 | .PP |
| 53 | .BR sctp_freeladdrs |
| 54 | frees all the resources allocated by |
| 55 | .BR sctp_getladdrs |
| 56 | .SH "RETURN VALUE" |
| 57 | On success, |
| 58 | .BR sctp_getladdrs |
| 59 | returns the number of local addresses bound to the socket. If the socket |
| 60 | is unbound, 0 is returned and the value of |
| 61 | .I *addrs |
| 62 | is undefined. On error, |
| 63 | .BR sctp_getladdrs |
| 64 | returns -1 and the value of |
| 65 | .I *addrs |
| 66 | is undefined. |
| 67 | .SH "SEE ALSO" |
| 68 | .BR sctp (7) |
| 69 | .BR sctp_bindx (3), |
| 70 | .BR sctp_connectx (3), |
| 71 | .BR sctp_sendmsg (3), |
| 72 | .BR sctp_sendv (3), |
| 73 | .BR sctp_send (3), |
| 74 | .BR sctp_recvmsg (3), |
| 75 | .BR sctp_recvv (3), |
| 76 | .BR sctp_peeloff (3), |
| 77 | .BR sctp_getpaddrs (3), |
| 78 | .BR sctp_opt_info (3), |