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141 lines
3.5 KiB
Groff
141 lines
3.5 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" From: @(#)send.2 8.2 (Berkeley) 2/21/94
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.\" $FreeBSD$
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.\"
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.Dd June 18, 2011
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.Dt SCTP_OPT_INFO 3
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.Os
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.Sh NAME
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.Nm sctp_opt_info
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.Nd get SCTP socket information
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In sys/types.h
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.In sys/socket.h
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.In netinet/sctp.h
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.Ft int
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.Fn sctp_opt_info "int sd" "sctp_assoc_t id" "int opt" "void *arg" "socklen_t *size"
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.Sh DESCRIPTION
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The
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.Fn sctp_opt_info
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call provides a multi-os compatible method for getting
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specific
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.Fn getsockopt
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data where an association identification needs to be passed
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into the operating system.
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For
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.Fx
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a direct
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.Fn getsockopt
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may be used, since
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.Fx
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has the ability to pass information
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into the operating system on a
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.Fn getsockopt
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call.
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Other operating systems may not have this ability.
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For those
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who wish to write portable code amongst multiple operating systems
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this call should be used for the following SCTP
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socket options.
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.Pp
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.Dv SCTP_RTOINFO
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.Pp
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.Dv SCTP_ASSOCINFO
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.Pp
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.Dv SCTP_PRIMARY_ADDR
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.Pp
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.Dv SCTP_PEER_ADDR_PARAMS
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.Pp
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.Dv SCTP_DEFAULT_SEND_PARAM
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.Pp
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.Dv SCTP_MAX_SEG
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.Pp
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.Dv SCTP_AUTH_ACTIVE_KEY
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.Pp
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.Dv SCTP_DELAYED_SACK
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.Pp
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.Dv SCTP_MAX_BURST
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.Pp
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.Dv SCTP_CONTEXT
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.Pp
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.Dv SCTP_EVENT
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.Pp
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.Dv SCTP_DEFAULT_SNDINFO
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.Pp
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.Dv SCTP_DEFAULT_PRINFO
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.Pp
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.Dv SCTP_STATUS
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.Pp
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.Dv SCTP_GET_PEER_ADDR_INFO
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.Pp
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.Dv SCTP_PEER_AUTH_CHUNKS
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.Pp
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.Dv SCTP_LOCAL_AUTH_CHUNKS
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.Sh RETURN VALUES
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The call returns 0 on success and -1 upon error.
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.Sh ERRORS
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The
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.Fn sctp_opt_info
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function can return the following errors:
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.Bl -tag -width Er
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.It Bq Er EINVAL
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The argument
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.Fa arg
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value was invalid.
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.It Bq Er EOPNOTSUPP
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The argument
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.Fa opt
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was not one of the above listed SCTP socket
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options.
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.It Bq Er EBADF
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The argument
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.Fa s
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is not a valid descriptor.
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.It Bq Er ENOTSOCK
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The argument
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.Fa s
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is not a socket.
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.El
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.Sh SEE ALSO
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.Xr getsockopt 2 ,
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.Xr sctp 4
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.Sh BUGS
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Because the structure used for
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.Fa arg
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of the
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.Dv SCTP_MAX_BURST
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socket option has changed in FreeBSD 9.0 and higher,
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using
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.Dv SCTP_MAX_BURST
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as
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.Fa opt
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is only supported in FreeBSD 9.0 and higher.
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