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+.\" Copyright (c) 1983, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_GETASSOCID 3
+.Os
+.Sh NAME
+.Nm sctp_getassocid
+.Nd return an association id for a specified socket address.
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft sctp_assoc_t
+.Fn sctp_getassocid "int s" "struct sockaddr *addr"
+.Sh DESCRIPTION
+The
+.Fn sctp_getassocid
+call attempts to lookup the specified socket address
+.Fa addr
+and find the respective association identification. 
+.Pp
+.Sh RETURN VALUES
+The call returns the association id upon success and a
+0 is returned upon failure.
+.Sh ERRORS
+The
+.Fn sctp_getassocid
+function can return the following errors.
+.Bl -tag -width Er
+.It Bq Er ENOENT
+The address does not have an association setup to it.
+.It Bq Er EBADF
+The argument
+.Fa s
+is not a valid descriptor.
+.It Bq Er ENOTSOCK
+The argument
+.Fa s
+is not a socket.
+.El
+.Sh SEE ALSO
+.Xr sctp 4 ,
+