First cut of the sctp man pages. Still need work.

15 files changed, 1791 insertions, 1 deletions

diff --git a/lib/libc/net/Makefile.inc b/lib/libc/net/Makefile.inc
index ddc1a1b..39e1147 100644
--- a/lib/libc/net/Makefile.inc
+++ b/lib/libc/net/Makefile.inc
@@ -51,7 +51,10 @@ MAN+=	addr2ascii.3 byteorder.3 ethers.3 eui64.3 \
 	inet.3 inet_net.3 \
 	inet6_opt_init.3 inet6_option_space.3 inet6_rth_space.3 \
 	inet6_rthdr_space.3 linkaddr.3 \
-	nsdispatch.3 rcmd.3 rcmdsh.3 resolver.3 sockatmark.3
+	nsdispatch.3 rcmd.3 rcmdsh.3 resolver.3 sockatmark.3 \
+        sctp_bindx.3 sctp_connectx.3 sctp_freepaddrs.3 \
+        sctp_getaddrlen.3 sctp_getassocid.3 sctp_getpaddrs.3 \
+        sctp_opt_info.3 sctp_recvmsg.3 sctp_send.3 sctp_sendmsg.3 \
 
 MLINKS+=addr2ascii.3 ascii2addr.3
 MLINKS+=byteorder.3 htonl.3 byteorder.3 htons.3 byteorder.3 ntohl.3 \
@@ -81,6 +84,10 @@ MLINKS+=inet.3 addr.3 inet.3 inet_addr.3 inet.3 inet_aton.3 \
 	inet.3 inet_network.3 inet.3 inet_ntoa.3 \
 	inet.3 inet_ntop.3 inet.3 inet_pton.3 \
 	inet.3 network.3 inet.3 ntoa.3 
+MLINKS+= sctp_send.3 sctp_sendx.3
+MLINKS+= sctp_sendmsg.3 sctp_sendmsgx.3
+MLINKS+= sctp_freepaddrs.3 sctp_freeladdrs.3
+MLINKS+= sctp_getpaddrs.3 sctp_getladdrs.3
 MLINKS+=inet_net.3 inet_net_ntop.3 inet_net.3 inet_net_pton.3
 MLINKS+=inet6_opt_init.3 inet6_opt_append.3 \
 	inet6_opt_init.3 inet6_opt_find.3 \
diff --git a/lib/libc/net/sctp_bindx.3 b/lib/libc/net/sctp_bindx.3
new file mode 100644
index 0000000..0c0b10b
--- /dev/null
+++ b/lib/libc/net/sctp_bindx.3
@@ -0,0 +1,109 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     From: @(#)send.2	8.2 (Berkeley) 2/21/94
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_BINDX 3
+.Os
+.Sh NAME
+.Nm sctp_bindx
+.Nd bind or unbind an SCTP socket to a list of addresses.
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft int
+.Fn sctp_bindx "int s" "struct sockaddr *addrs" "int num" "int type"
+.Sh DESCRIPTION
+The
+.Fn sctp_bindx
+call binds or unbinds a address or a list of addresses to an
+SCTP endpoint. This allows a user to bind a subset of
+addresses. The
+.Fn sctp_bindx
+call operates similarly to 
+.Fn bind
+but allows a list of addresses and also allows a bind or an
+unbind. The argument
+.Fa s
+must be a valid SCTP socket descriptor. The argument
+.Fa addrs
+is a list of addresses (where the list may be only 1 in
+length) that the user wishes to bind or unbind to the
+socket. The argument
+.Fa type
+must be one of the following values.
+.Pp
+.Dv SCTP_BINDX_ADD_ADDR
+This value indicates that the listed address(es) need to
+be added to the endpoint.
+.Pp
+.Dv SCTP_BINDX_DEL_ADDR
+This value indicates that the listed address(es) need to
+be removed from the endpoint.
+.Pp
+Note that when a user adds or deletes an address to an
+association if the dynamic address flag "net.inet.sctp.auto_asconf"
+is enabled any associations in the endpoint will attempt to
+have the address(es) added dynamically to the existing
+association.
+.Sh RETURN VALUES
+The call returns 0 on success and -1 upon failure.
+.Sh ERRORS
+The
+.Fn sctp_bindx
+can return the following errors.
+.Bl -tag -width Er
+.It Bq Er EINVAL
+This value is returned if the
+.Fa type
+field is not one of the allowed values (see above).
+.It Bq Er ENOMEM
+This value is returned if the number of addresses
+being added causes a memory allocation failure in 
+the call.
+.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 ,
+.Xr bind 2 ,
+
diff --git a/lib/libc/net/sctp_connectx.3 b/lib/libc/net/sctp_connectx.3
new file mode 100644
index 0000000..b556472
--- /dev/null
+++ b/lib/libc/net/sctp_connectx.3
@@ -0,0 +1,98 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_CONNECTX 3
+.Os
+.Sh NAME
+.Nm sctp_connectx
+.Nd connect an sctp socket with multiple destination addresses.
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft int
+.Fn sctp_connectx "int s" "struct sockaddr *" "int addrcnt"
+.Sh DESCRIPTION
+The
+.Fn sctp_connectx
+call attempts to initiate an association to a peer SCTP
+endpoint. The call operates similarly to
+.Fn connect
+but it also provides the ability to specify multiple destination
+addresses for the peer. This allows a fault tolerant method
+of initiating an association. When one of the peers addresses
+is unreachable, the subsequent listed addresses will also be used
+to setup the association with the peer. 
+.Pp
+The user also needs to consider that any address listed in an 
+.Fn sctp_connectx
+call is also consider "confirmed".
+A confirmed address is one in
+which the SCTP transport will trust is a part of the association
+and it will not send a confirmation heartbeat to it with
+a random nonce. 
+.Pp
+If the peer SCTP stack does not list one or more of
+the provided addresses in its response message then 
+the extra addresses sent in the
+.Fn sctp_connectx
+call will be silently discarded from the association.
+.Sh RETURN VALUES
+The call returns 0 on success and -1 upon failure.
+.Sh ERRORS
+The
+.Fn sctp_connectx
+can return the following errors.
+.Bl -tag -width Er
+.It Bq Er EINVAL
+An address listed has an invalid family or no
+addresses were provided.
+.It Bq Er E2BIG
+The size of the address list exceeds the amount of
+data provided.
+.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 ,
+.Xr connect 2 ,
+
diff --git a/lib/libc/net/sctp_freepaddrs.3 b/lib/libc/net/sctp_freepaddrs.3
new file mode 100644
index 0000000..74c810a
--- /dev/null
+++ b/lib/libc/net/sctp_freepaddrs.3
@@ -0,0 +1,71 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     From: @(#)send.2	8.2 (Berkeley) 2/21/94
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_FREEPADDRS 3
+.Os
+.Sh NAME
+.Nm sctp_freepaddrs
+.Nm sctp_freeladdrs
+.Nd release the memory returned from a previous call.
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft void
+.Fn sctp_freepaddrs "struct sockaddr *" 
+.Ft void
+.Fn sctp_freeladdrs "struct sockaddr *" 
+
+.Sh DESCRIPTION
+The function
+.Fn sctp_freepaddrs
+and
+.Fn sctp_freeladdrs
+are used to release the memory allocated by previous
+calls to
+.Fn sctp_getpaddrs
+or
+.Fn sctp_getladdrs
+respectively.
+.Sh RETURN VALUES
+none.
+.El
+.Sh SEE ALSO
+.Xr sctp 4 ,
+.Xr sctp_getpaddrs 3 ,
+.Xr sctp_getladdrs 3 ,
+
diff --git a/lib/libc/net/sctp_getaddrlen.3 b/lib/libc/net/sctp_getaddrlen.3
new file mode 100644
index 0000000..64a83f6
--- /dev/null
+++ b/lib/libc/net/sctp_getaddrlen.3
@@ -0,0 +1,80 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     From: @(#)send.2	8.2 (Berkeley) 2/21/94
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_GETADDRLEN 3
+.Os
+.Sh NAME
+.Nm sctp_getaddrlen
+.Nd return the address length of an address family
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft int
+.Fn sctp_getaddrlen "sa_family_t family""
+.Sh DESCRIPTION
+The
+.Fn sctp_getaddrlen
+returns the size of a specific address family. This function
+is provided for application binary compatability since it
+provides the application with the size the operating system
+thinks the specific address family is. Note that the function
+will actually create an SCTP socket and then gather the
+information via a
+.Fn getsockopt
+system calls. If for some reason a SCTP socket cannot
+be created or the getsockopt fails, an error will be returned 
+with errno set as specified in the
+.Fn socket
+or
+.Fn getsockopt
+system call.
+.Sh RETURN VALUES
+The call returns the number of bytes that the operating
+system expects for the specific address family or -1.
+.Sh ERRORS
+The
+.Fn sctp_getaddrlen
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The address family specified does NOT exist.
+.El
+.Sh SEE ALSO
+.Xr sctp 4 ,
+.Xr socket 2 ,
+.Xr getsockopt 2 ,
+
diff --git a/lib/libc/net/sctp_getassocid.3 b/lib/libc/net/sctp_getassocid.3
new file mode 100644
index 0000000..e3dc7d3
--- /dev/null
+++ b/lib/libc/net/sctp_getassocid.3
@@ -0,0 +1,76 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" 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 ,
+
diff --git a/lib/libc/net/sctp_getpaddrs.3 b/lib/libc/net/sctp_getpaddrs.3
new file mode 100644
index 0000000..8ff3670
--- /dev/null
+++ b/lib/libc/net/sctp_getpaddrs.3
@@ -0,0 +1,100 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     From: @(#)send.2	8.2 (Berkeley) 2/21/94
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_GETPADDR 3
+.Os
+.Sh NAME
+.Nm sctp_getpaddrs
+.Nm sctp_getladdrs
+.Nd return a list of addresses to the caller.
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft int
+.Fn sctp_getpaddrs "int s" "sctp_assoc_t asocid" "struct sockaddr **addrs"
+.Ft int
+.Fn sctp_getladdrs "int s" "sctp_assoc_t asocid" "struct sockaddr **addrs"
+.Sh DESCRIPTION
+The
+.Fn sctp_getpaddrs
+function is used to get the list of the peers addresses.
+The 
+.Fn sctp_getladdrs
+function is used to get the list of the local addresses.
+The association of interest is identified by the
+.Fa asocid
+argument. The addresses are returned in a newly allocated
+array of socket addresses returned in the argument
+.Fa addrs
+upon success.
+ .Pp
+After the caller is through the function
+.Fn sctp_freepaddrs
+or
+.Fn sctp_freeladdrs
+should be used to release the memory allocated by these
+calls.
+.Sh RETURN VALUES
+The call returns -1 upon failure and a count of
+the number of addresses returned in
+.Fa addrs
+upon success.
+.Sh ERRORS
+The functions can return the following errors.
+.Bl -tag -width Er
+.It Bq Er EINVAL
+An address listed has an invalid family or no
+addresses were provided.
+.It Bq Er ENOMEM
+The call cannot allocate memory to hold the
+socket addresses.
+.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 ,
+.Xr sctp_freepaddrs 3 ,
+.Xr sctp_freeladdrs 3 ,
+.Xr getsockopt 2 ,
+
diff --git a/lib/libc/net/sctp_opt_info.3 b/lib/libc/net/sctp_opt_info.3
new file mode 100644
index 0000000..00b8af5
--- /dev/null
+++ b/lib/libc/net/sctp_opt_info.3
@@ -0,0 +1,109 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     From: @(#)send.2	8.2 (Berkeley) 2/21/94
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_OPT_INFO 3
+.Os
+.Sh NAME
+.Nm sctp_opt_info
+.Nd get sctp socket information
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft int
+.Fn sctp_opt_info "int s" "sctp_assoc_t" "int opt" "void *arg" "socklen_t *size"
+.Sh DESCRIPTION
+The
+.Fn sctp_opt_info
+call provides a multi-os compatible method for getting
+specific 
+.Fn getsockopt
+data where an association identification needs to be passed
+into the operating system. For FreeBSD a direct
+.Fn getsockopt
+may be used, since FreeBSD has the ability to pass information
+into the operating system on a
+.Fn getsockopt
+call. Other operating systems may not have this ability. For those
+who wish to write portable code amongst multiple operating system
+this call should be used for the for the following sctp
+socket options.
+.Pp
+.Dv SCTP_RTOINFO 
+.Pp
+.Dv SCTP_ASSOCINFO
+.Pp
+.Dv SCTP_PRIMARY_ADDR
+.Pp
+.Dv SCTP_SET_PEER_PRIMARY_ADDR
+.Pp
+.Dv SCTP_STATUS
+.Pp
+.Dv SCTP_GET_PEER_ADDR_INFO
+.Pp
+.Dv SCTP_AUTH_ACTIVE_KEY
+.Pp
+.Dv SCTP_PEER_AUTH_CHUNKS
+.Pp
+.Dv SCTP_LOCAL_AUTH_CHUNKS
+.Sh ERRORS
+The
+.Fn sctp_opt_info
+can return the following errors.
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The argument
+.Fa arg
+value was invalid.
+.It Bq Er EOPNOTSUPP
+The argument
+.Fa opt
+was not one of the above listed SCTP socket
+options.
+.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 ,
+.Xr getsockopt 2 ,
+
diff --git a/lib/libc/net/sctp_recvmsg.3 b/lib/libc/net/sctp_recvmsg.3
new file mode 100644
index 0000000..a7a2019
--- /dev/null
+++ b/lib/libc/net/sctp_recvmsg.3
@@ -0,0 +1,272 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_RECVMSG 3
+.Os
+.Sh NAME
+.Nm sctp_recvmsg
+.Nd send a message from an SCTP socket
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft ssize_t
+.Ft ssize_t
+.Fn sctp_recvmsg "int s" "void *msg" "size_t len" "struct sockaddr * restrict from" "socklen_t * restrict fromlen" "struct sctp_sndrcvinfo *sinfo" "int *flags"
+.Sh DESCRIPTION
+The
+.Fn sctp_recvmsg
+system calls
+is used to receive a message from another SCTP endpoint.
+The
+.Fn sctp_recvmsg
+call is used by one-to-one (SOCK_STREAM) type sockets after a
+sucessful 
+.Fn connect 2
+call or after the application has performed a 
+.Fn listen 
+followed by a sucessful 
+.Fn accept 2
+For a one-to-many (SOCK_SEQPACKET)type socket, an endpoint may call
+.Fn sctp_recvmsg
+after having implicitly started an association via one
+of the send calls including
+.Fn sctp_sendmsg 2
+.Fn sendto 2
+and
+.Fn sendmsg 2
+Or, an application may also receive a message after having
+called
+.Fn listen 2
+with a postive backlog to enable the reception of new associations.
+.Pp
+.Pp
+The address of the sender is held in the
+.Fa from
+argument with 
+.Fa fromlen
+specifying its size. At the completion of a sucessful
+.Fn sctp_recvmsg
+call
+.Fa from
+will hold the address of the peer and
+.Fa fromlen
+will hold the length of that address. Note that
+the address is bounded by the inital value of 
+.Fa fromlen
+which is used as an in/out variable.
+.Pp
+The length of the message 
+.Fa msg
+to be received is bounded by
+.Fa len .
+If the message is to long to fit in the users
+receive buffer, then the 
+.Fa flags
+argument will NOT have the MSG_EOF flag
+applied. If the message is a complete message then
+the 
+.Fa flags
+argument will have MSG_EOF set. Locally detected errors are 
+indicated by a return value of -1 with errno set accordingly.
+The 
+.Fa flags
+argument may also hold the value MSG_NOTIFICATION. When this
+occurs this indicates that the message received is NOT from
+the peer endpoint, but instead is a notification from the
+SCTP stack (see
+.Fn sctp 4
+for more details). Note that no notifications are ever
+given unless the user subscribes to such notifications using
+the SCTP_EVENTS socket option.
+.Pp
+If no messages is available at the socket then
+.Fn sctp_recvmsg
+normally blocks on the reception of a message or NOTIFICATION, unless the socket has been placed in
+non-blocking I/O mode.
+The
+.Xr select 2
+system call may be used to determine when it is possible to
+receive a message.
+.Pp
+
+The 
+.Fa sinfo
+argument is defined as follows.
+.Bd -literal
+struct sctp_sndrcvinfo {
+	u_int16_t sinfo_stream;  /* Stream arriving on */
+	u_int16_t sinfo_ssn;     /* Stream Sequence Number */
+	u_int16_t sinfo_flags;   /* Flags on the incoming message */
+	u_int32_t sinfo_ppid;    /* The ppid field */
+	u_int32_t sinfo_context; /* context field */
+	u_int32_t sinfo_timetolive; /* not used by sctp_recvmsg */
+	u_int32_t sinfo_tsn;        /* The transport sequence number */
+	u_int32_t sinfo_cumtsn;     /* The cumulative acknowledgment point  */
+	sctp_assoc_t sinfo_assoc_id; /* The association id of the peer */
+};
+.Ed
+
+The
+.Fa sinfo->sinfo_ppid
+is an opaque 32 bit value that is passed transparently
+through the stack from the peer endpoint. 
+Note that the stack passes this value without regard to byte
+order.
+.Pp
+The
+.Fa sinfo->sinfo_flags
+field may include the following:
+.Bd -literal
+#define SCTP_UNORDERED 	  0x0400	/* Message is un-ordered */
+.Ed
+.Pp
+The
+.Dv SCTP_UNORDERED
+flag is used to specify that the message arrived with no
+specific order and was delivered to the peer application
+as soon as possible. When this flag is absent the message
+was delivered in order within the stream it was received.
+.Pp
+.Fa sinfo->sinfo_stream
+is the SCTP stream that the message was received on. 
+Streams in SCTP are reliable (or partially reliable) flows of ordered
+messages.
+.Pp
+ The 
+.Fa sinfo->sinfo_context
+field is used only if the local application set a association level
+context with the SCTP_CONTEXT socket option.
+Optionally a user process can use this value to index some application
+specific data structure for all data coming from a specific
+association. 
+.Pp
+The
+.Fa sinfo->sinfo_ssn
+will hold the stream sequence number assigned
+by the peer endpoint if the message is NOT unordered.
+For unordered messages this field holds an undefined value.
+.Pp
+The
+.Fa sinfo->sinfo_tsn
+holds a transport sequence number (TSN) that was assigned
+to this message by the peer endpoint. For messages that fit in or less
+than the path MTU this will be the only TSN assigned.
+Note that for messages that span multiple TSN's this
+value will be one of the TSN's that was used on the
+message.
+.Pp
+The
+.Fa sinfo->sinfo_cumtsn
+holds the current cumulative acknowledgment point of
+the transport association. Note that this may be larger
+or smaller than the TSN assigned to the message itself.
+.Pp
+The 
+sinfo->sinfo_assoc_id
+is the unique association identification that was assigned
+to the association. For one-to-many (SOCK_SEQPACKET) type
+sockets this value can be used to send data to the peer without
+the use of an address field. It is also quite useful in
+setting various socket options on the specific association
+(see 
+.Fn sctp 4
+).
+.Pp
+The 
+sinfo->info_timetolive
+field is not used by 
+.Fa sctp_recvmsg .
+.Sh RETURN VALUES
+The call returns the number of characters sent, or -1
+if an error occurred.
+.Sh ERRORS
+The
+.Fn sctp_recvmsg
+system call
+fail if:
+.Bl -tag -width Er
+.It Bq Er EBADF
+An invalid descriptor was specified.
+.It Bq Er ENOTSOCK
+The argument
+.Fa s
+is not a socket.
+.It Bq Er EFAULT
+An invalid user space address was specified for an argument.
+.It Bq Er EMSGSIZE
+The socket requires that message be sent atomically,
+and the size of the message to be sent made this impossible.
+.It Bq Er EAGAIN
+The socket is marked non-blocking and the requested operation
+would block.
+.It Bq Er ENOBUFS
+The system was unable to allocate an internal buffer.
+The operation may succeed when buffers become available.
+.It Bq Er ENOBUFS
+The output queue for a network interface was full.
+This generally indicates that the interface has stopped sending,
+but may be caused by transient congestion.
+.It Bq Er EHOSTUNREACH
+The remote host was unreachable.
+.It Bq Er ENOTCON
+On a one to one style socket no association exists.
+.It Bq Er ECONNRESET
+An abort was received by the stack while the user was
+attempting to send data to the peer.
+.It Bq Er ENOENT
+On a one to many style socket no address is specified
+so that the association cannot be located or the
+SCTP_ABORT flag was specified on a non-existing association.
+.It Bq Er EPIPE
+The socket is unable to send anymore data
+.Dv ( SBS_CANTSENDMORE
+has been set on the socket).
+This typically means that the socket
+is not connected and is a one-to-one style socket.
+.El
+.Sh SEE ALSO
+.Xr sctp 4 ,
+.Xr sendmsg 3 ,
+.Xr sctp_sendmsg 3 ,
+.Xr sctp_send 3 ,
+.Xr getsockopt 2 ,
+.Xr setsockopt 2 ,
+.Xr recv 2 ,
+.Xr select 2 ,
+.Xr socket 2 ,
+.Xr write 2
+
diff --git a/lib/libc/net/sctp_send.3 b/lib/libc/net/sctp_send.3
new file mode 100644
index 0000000..3a6a879
--- /dev/null
+++ b/lib/libc/net/sctp_send.3
@@ -0,0 +1,324 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_SEND 3
+.Os
+.Sh NAME
+.Nm sctp_send
+.Nm sctp_sendx
+.Nd send a message from an SCTP socket
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft ssize_t
+.Fn sctp_send "int sd" "const void *msg" "size_t len" "const struct sctp_sndrcvinfo *sinfo" "int flags"
+.Ft ssize_t
+.Fn sctp_sendx "int sd" "const void *msg" "size_t len" "struct sockaddr *addrs" "int addrcnt" "const struct sctp_sndrcvinfo *sinfo" "int flags"
+.Sh DESCRIPTION
+The
+.Fn sctp_send
+system calls
+is used to transmit a message to another SCTP endpoint.
+The
+.Fn sctp_send
+may be used to send data to an existing association for both
+one-to-many (SOCK_SEQPACKET) and one-to-one (SOCK_STREAM) socket types.
+The length of the message 
+.Fa msg
+is given by
+.Fa len .
+If the message is too long to pass atomically through the
+underlying protocol, the errno is set to 
+.Er EMSGSIZE
+a -1 is returned, and
+the message is not transmitted.
+.Pp
+No indication of failure to deliver is implicit in a
+.Fn sctp_send
+Locally detected errors are indicated by a return value of -1.
+.Pp
+If no messages space is available at the socket to hold
+the message to be transmitted, then
+.Fn sctp_send
+normally blocks, unless the socket has been placed in
+non-blocking I/O mode.
+The
+.Fn select 2
+system call may be used to determine when it is possible to
+send more data on one-to-one type (SOCK_STREAM) sockets.
+.Pp
+The 
+.Fa sinfo
+structure is used to control various SCTP features
+and has the following format:
+.Bd -literal
+struct sctp_sndrcvinfo {
+	u_int16_t sinfo_stream;  /* Stream sending to */
+	u_int16_t sinfo_ssn;     /* valid for recv only */
+	u_int16_t sinfo_flags;   /* flags to control sending */
+	u_int32_t sinfo_ppid;    /* ppid field */
+	u_int32_t sinfo_context; /* context field */
+	u_int32_t sinfo_timetolive; /* timetolive for PR-SCTP */
+	u_int32_t sinfo_tsn;        /* valid for recv only */
+	u_int32_t sinfo_cumtsn;     /* valid for recv only */
+	sctp_assoc_t sinfo_assoc_id; /* The association id */
+};
+.Ed
+The 
+.Fa sinfo->sinfo_ppid
+argument is an opaque 32 bit value that is passed transparently
+through the stack to the peer endpoint. It will be available on
+reception of a message (see
+.Fn sctp_recvmsg 2
+). Note that the stack passes this value without regard to byte
+order.
+.Pp
+The
+.Fa sinfo->sinfo_flags
+argument may include one or more of the following:
+.Bd -literal
+#define SCTP_EOF 	  0x0100	/* Start a shutdown procedures */
+#define SCTP_ABORT	  0x0200	/* Send an ABORT to peer */
+#define SCTP_UNORDERED 	  0x0400	/* Message is un-ordered */
+#define SCTP_ADDR_OVER	  0x0800	/* Override the primary-address */
+#define SCTP_SENDALL      0x1000	/* Send this on all associations */
+					/* for the endpoint */
+/* The lower byte is an enumeration of PR-SCTP policies */
+#define SCTP_PR_SCTP_TTL  0x0001	/* Time based PR-SCTP */
+#define SCTP_PR_SCTP_BUF  0x0002	/* Buffer based PR-SCTP */
+#define SCTP_PR_SCTP_RTX  0x0003	/* Number of retransmissions based PR-SCTP */
+.Ed
+.Pp
+The flag 
+.Dv SCTP_EOF
+is used to instruct the SCTP stack to queue this message
+and then start a graceful shutdown of the association. All
+remaining data in queue will be sent after which the association
+will be shutdown.
+.Pp
+.Dv SCTP_ABORT
+is used to immediately terminate an association. An abort
+is sent to the peer and the local TCB is destroyed.
+.Pp
+.Dv SCTP_UNORDERED
+is used to specify that the message being sent has no
+specific order and should be delivered to the peer application
+as soon as possible. When this flag is absent messages
+are delivered in order within the stream they are sent, but without
+respect to order to peer streams.
+.Pp
+The flag
+.Dv SCTP_ADDR_OVER
+is used to specify that an specific address should be used. Normally
+SCTP will use only one of a multi-homed peers address as the primary
+address to send to. By default, no matter what the 
+.Fa to
+argument is, this primary address is used to send data. By specifying
+this flag, the user is asking the stack to ignore the primary address
+and instead use the specified address not only has a lookup mechanism
+to find the association but also has the actual address to send to.
+.Pp
+For a one-to-many type (SOCK_SEQPACKET) socket the flag
+.Dv SCTP_SENDALL
+can be used as a convient way to make one send call and have
+all associations that are under the socket get a copy of the message.
+Note that this mechanism is quite efficent and makes only one actual
+copy of the data which is shared by all the associations for sending.
+.Pp
+The remaining flags are used for the partial reliabilty extension (RFC3758)
+and will only be effective if the peer endpoint supports this extension.
+This option specify's what local policy the local endpoint should use
+in skipping data. If none of these options are set, then data is
+never skipped over.
+.Pp
+.Dv SCTP_PR_SCTP_TTL
+Is used to indicate that a time based lifetime is being applied
+to the data. The
+.Fa sinfo->sinfo_timetolive
+argument is then a number of milliseconds for which the data is
+attempted to be transmitted. If that many milliseconds ellapses
+and the peer has not acknowledge the data, the data will be
+skipped and no longer transmitted. Note that this policy does
+not even assure that the data will ever be sent. In times of a congestion
+with large amounts of data being queued, the 
+.Fa sinfo->sinfo_timetolive
+may expire before the first transmission is ever made.
+.Pp
+The
+.Dv SCTP_PR_SCTP_BUF
+based policy transforms the
+.Fa sinfo->sinfo_timetolive 
+field into a total number of bytes allowed on the outbound
+send queue. If that number or more bytes are in queue, then
+other buffer based sends are looked to be removed and
+skipped. Note that this policy may also result in the data
+never being sent if no buffer based sends are in queue and
+the maximum specified by 
+.Fa timetolive 
+bytes is in queue.
+.Pp
+The
+.Dv SCTP_PR_SCTP_RTX
+policy transforms the
+.Fa sinfo->sinfo_timetolive 
+into a number of retransmissions to allow. This policy
+always assures that at a minimum one send attempt is
+made of the data. After which no more than 
+.Fa sinfo->sinfo_timetolive
+retransmissions will be made before the data is skipped.
+.Pp
+.Fa sinfo->sinfo_stream
+is the SCTP stream that you wish to send the
+message on. Streams in SCTP are reliable (or partially reliable) flows of ordered
+messages. 
+.Pp
+The
+.Fa sinfo->sinfo_assoc_id
+field is used to 
+select the association to send to on an one-to-many socket. For a
+one-to-one socket, this field is ignored.
+.Pp
+.Fa sinfo->sinfo_context
+field is used only in the event the message cannot be sent. This is an opaque
+value that the stack retains and will give to the user when a failed send
+is given if that notification is enabled (see
+.Tn sctp
+). Normally a user process can use this value to index some application
+specific data structure when a send cannot be fulfilled.
+.Pp
+The
+.Fa flags
+argument holds the same meaning and values has those found in
+.Fn sendmsg 2
+but is generally ignored by SCTP.
+.Pp
+The fields
+.Fa sinfo->sinfo_ssn ,
+.Fa sinfo->sinfo_tsn ,
+and
+.Fa sinfo->sinfo_cumtsn 
+are used only when receiving messages and are thus ignored by
+.Fn sctp_send.
+The function
+.Fn sctp_sendx 
+has the same properties as 
+.Fn sctp_send
+with the additional arguments of an array of sockaddr structures
+passed in. With the 
+.Fa addrs
+argument being given as an array of addresses to be sent to and
+the
+.Fa addrcnt
+argument indicating how many socket addresses are in the passed
+in array. Note that all of the addresses will only be used
+when an implicit association is being setup. This allows the
+user the equivilant behavior as doing a
+.Fn sctp_connectx
+followed by a 
+.Fn sctp_send
+to the association. Note that if the association id.
+.Fa sinfo->sinfo_assoc_id
+field is 0, then the first address will be used to look up
+the association in place of the association id. If both
+an address and and association id are specified, the association
+id has priority. 
+.Sh RETURN VALUES
+The call returns the number of characters sent, or -1
+if an error occurred.
+.Sh ERRORS
+The
+.Fn sctp_send
+system call
+fail if:
+.Bl -tag -width Er
+.It Bq Er EBADF
+An invalid descriptor was specified.
+.It Bq Er ENOTSOCK
+The argument
+.Fa s
+is not a socket.
+.It Bq Er EFAULT
+An invalid user space address was specified for an argument.
+.It Bq Er EMSGSIZE
+The socket requires that message be sent atomically,
+and the size of the message to be sent made this impossible.
+.It Bq Er EAGAIN
+The socket is marked non-blocking and the requested operation
+would block.
+.It Bq Er ENOBUFS
+The system was unable to allocate an internal buffer.
+The operation may succeed when buffers become available.
+.It Bq Er ENOBUFS
+The output queue for a network interface was full.
+This generally indicates that the interface has stopped sending,
+but may be caused by transient congestion.
+.It Bq Er EHOSTUNREACH
+The remote host was unreachable.
+.It Bq Er ENOTCON
+On a one to one style socket no association exists.
+.It Bq Er ECONNRESET
+An abort was received by the stack while the user was
+attempting to send data to the peer.
+.It Bq Er ENOENT
+On a one to many style socket no address is specified
+so that the association cannot be located or the
+SCTP_ABORT flag was specified on a non-existing association.
+.It Bq Er EPIPE
+The socket is unable to send anymore data
+.Dv ( SBS_CANTSENDMORE
+has been set on the socket).
+This typically means that the socket
+is not connected and is a one-to-one style socket.
+.El
+.Sh SEE ALSO
+.Xr sctp 4 ,
+.Xr sendmsg 2 ,
+.Xr sctp_sendmsg 3 ,
+.Xr sctp_recvmsg 3 ,
+.Xr sctp_connectx 3 ,
+.Xr getsockopt 2 ,
+.Xr recv 2 ,
+.Xr select 2 ,
+.Xr socket 2 ,
+.Xr write 2
+.Sh BUGS
+Because
+.Fn sctp_send
+may have multiple associations under one endpoint, a
+select on write will only work for a one-to-one style
+socket.
+
diff --git a/lib/libc/net/sctp_sendmsg.3 b/lib/libc/net/sctp_sendmsg.3
new file mode 100644
index 0000000..b771bc0
--- /dev/null
+++ b/lib/libc/net/sctp_sendmsg.3
@@ -0,0 +1,297 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     From: @(#)send.2	8.2 (Berkeley) 2/21/94
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_SENDMSG 3
+.Os
+.Sh NAME
+.Nm sctp_sendmsg
+.Nm sctp_sendmsgx
+.Nd send a message from an SCTP socket
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft ssize_t
+.Fn sctp_sendmsg "int s" "const void *msg" "size_t len" "const struct sockaddr *to" "socklen_t tolen" "uint32_t ppid" "uint32_t flags" "uint16_t stream_no" "uint32_t timetolive" "uint32_t context"
+.Ft ssize_t
+.Fn sctp_sendmsgx "int s" "const void *msg" "size_t len" "const struct sockaddr *to" "int addrcnt" "uint32_t ppid" "uint32_t flags" "uint16_t stream_no" "uint32_t timetolive" "uint32_t context"
+
+.Sh DESCRIPTION
+The
+.Fn sctp_sendmsg
+system calls
+is used to transmit a message to another SCTP endpoint.
+The
+.Fn sctp_sendmsg
+may be used at any time. If the socket is a one-to-many type (SOCK_SEQPACKET)
+socket then an attempt to send to an address that no association exists to will
+implicitly create a new association. Data sent in such an instance will result in
+the data being sent on the third leg of the SCTP four-way handshake. Note that if
+the socket is a one-to-one type (SOCK_STREAM) socket then an association must
+be in existance (by use of the 
+.Fn connect 2
+system call). Calling 
+.Fn sctp_sendmsg
+or
+.Fn sctp_sendmsgx
+on a non-connected one-to-one socket will result in the errno being set to
+.Er ENOTCONN
+a -1 being returned, and the message is not transmitted.
+.Pp
+The address of the target is given by
+.Fa to
+with
+.Fa tolen
+specifying its size.
+The length of the message 
+.Fa msg
+is given by
+.Fa len .
+If the message is too long to pass atomically through the
+underlying protocol, the errno is set to 
+.Er EMSGSIZE
+a -1 is returned, and
+the message is not transmitted.
+.Pp
+No indication of failure to deliver is implicit in a
+.Fn sctp_sendmsg 2
+Locally detected errors are indicated by a return value of -1.
+.Pp
+If no messages space is available at the socket to hold
+the message to be transmitted, then
+.Fn sctp_sendmsg 2
+normally blocks, unless the socket has been placed in
+non-blocking I/O mode.
+The
+.Fn select 2
+system call may be used to determine when it is possible to
+send more data on one-to-one type (SOCK_STREAM) sockets.
+.Pp
+The 
+.Fa ppid
+argument is an opaque 32 bit value that is passed transparently
+through the stack to the peer endpoint. It will be available on
+reception of a message (see
+.Fn sctp_recvmsg 2
+). Note that the stack passes this value without regard to byte
+order.
+.Pp
+The
+.Fa flags
+argument may include one or more of the following:
+.Bd -literal
+#define SCTP_EOF 	  0x0100	/* Start a shutdown procedures */
+#define SCTP_ABORT	  0x0200	/* Send an ABORT to peer */
+#define SCTP_UNORDERED 	  0x0400	/* Message is un-ordered */
+#define SCTP_ADDR_OVER	  0x0800	/* Override the primary-address */
+#define SCTP_SENDALL      0x1000	/* Send this on all associations */
+					/* for the endpoint */
+/* The lower byte is an enumeration of PR-SCTP policies */
+#define SCTP_PR_SCTP_TTL  0x0001	/* Time based PR-SCTP */
+#define SCTP_PR_SCTP_BUF  0x0002	/* Buffer based PR-SCTP */
+#define SCTP_PR_SCTP_RTX  0x0003	/* Number of retransmissions based PR-SCTP */
+.Ed
+.Pp
+The flag 
+.Dv SCTP_EOF
+is used to instruct the SCTP stack to queue this message
+and then start a graceful shutdown of the association. All
+remaining data in queue will be sent after which the association
+will be shutdown.
+.Pp
+.Dv SCTP_ABORT
+is used to immediately terminate an association. An abort
+is sent to the peer and the local TCB is destroyed.
+.Pp
+.Dv SCTP_UNORDERED
+is used to specify that the message being sent has no
+specific order and should be delivered to the peer application
+as soon as possible. When this flag is absent messages
+are delivered in order within the stream they are sent, but without
+respect to order to peer streams.
+.Pp
+The flag
+.Dv SCTP_ADDR_OVER
+is used to specify that an specific address should be used. Normally
+SCTP will use only one of a multi-homed peers address as the primary
+address to send to. By default, no matter what the 
+.Fa to
+argument is, this primary address is used to send data. By specifying
+this flag, the user is asking the stack to ignore the primary address
+and instead use the specified address not only has a lookup mechanism
+to find the association but also has the actual address to send to.
+.Pp
+For a one-to-many type (SOCK_SEQPACKET) socket the flag
+.Dv SCTP_SENDALL
+can be used as a convient way to make one send call and have
+all associations that are under the socket get a copy of the message.
+Note that this mechanism is quite efficent and makes only one actual
+copy of the data which is shared by all the associations for sending.
+.Pp
+The remaining flags are used for the partial reliabilty extension (RFC3758)
+and will only be effective if the peer endpoint supports this extension.
+This option specify's what local policy the local endpoint should use
+in skipping data. If none of these options are set, then data is
+never skipped over.
+.Pp
+.Dv SCTP_PR_SCTP_TTL
+Is used to indicate that a time based lifetime is being applied
+to the data. The
+.Fa timetolive
+argument is then a number of milliseconds for which the data is
+attempted to be transmitted. If that many milliseconds ellapses
+and the peer has not acknowledge the data, the data will be
+skipped and no longer transmitted. Note that this policy does
+not even assure that the data will ever be sent. In times of a congestion
+with large amounts of data being queued, the 
+.Fa timetolive
+may expire before the first transmission is ever made.
+.Pp
+The
+.Dv SCTP_PR_SCTP_BUF
+based policy transforms the
+.Fa timetolive 
+field into a total number of bytes allowed on the outbound
+send queue. If that number or more bytes are in queue, then
+other buffer based sends are looked to be removed and
+skipped. Note that this policy may also result in the data
+never being sent if no buffer based sends are in queue and
+the maximum specified by 
+.Fa timetolive 
+bytes is in queue.
+.Pp
+The
+.Dv SCTP_PR_SCTP_RTX
+policy transforms the
+.Fa timetolive 
+into a number of retransmissions to allow. This policy
+always assures that at a minimum one send attempt is
+made of the data. After which no more than 
+.Fa timetolive
+retransmissions will be made before the data is skipped.
+.Pp
+.Fa stream_no
+is the SCTP stream that you wish to send the
+message on. Streams in SCTP are reliable (or partially reliable) flows of ordered
+messages. The 
+.Fa context
+field is used only in the event the message cannot be sent. This is an opaque
+value that the stack retains and will give to the user when a failed send
+is given if that notification is enabled (see
+.Tn sctp
+). Normally a user process can use this value to index some application
+specific data structure when a send cannot be fulfilled.
+.Fn sctp_sendmsgx
+is identical to 
+.Fn sctp_sendmsg
+with the exception that it takes a array of sockaddr structures in the
+argument
+.Fa to
+and adds the additional argument
+.Fa addrcnt
+which specifies how many addresses are in the array. This allows a
+caller to implictly setup an association passing multiple addresses
+as if an
+.Fn sctp_connectx 
+had been called to setup the association.
+.Sh RETURN VALUES
+The call returns the number of characters sent, or -1
+if an error occurred.
+.Sh ERRORS
+The
+.Fn sctp_sendmsg 2
+system call
+fail if:
+.Bl -tag -width Er
+.It Bq Er EBADF
+An invalid descriptor was specified.
+.It Bq Er ENOTSOCK
+The argument
+.Fa s
+is not a socket.
+.It Bq Er EFAULT
+An invalid user space address was specified for an argument.
+.It Bq Er EMSGSIZE
+The socket requires that message be sent atomically,
+and the size of the message to be sent made this impossible.
+.It Bq Er EAGAIN
+The socket is marked non-blocking and the requested operation
+would block.
+.It Bq Er ENOBUFS
+The system was unable to allocate an internal buffer.
+The operation may succeed when buffers become available.
+.It Bq Er ENOBUFS
+The output queue for a network interface was full.
+This generally indicates that the interface has stopped sending,
+but may be caused by transient congestion.
+.It Bq Er EHOSTUNREACH
+The remote host was unreachable.
+.It Bq Er ENOTCON
+On a one to one style socket no association exists.
+.It Bq Er ECONNRESET
+An abort was received by the stack while the user was
+attempting to send data to the peer.
+.It Bq Er ENOENT
+On a one to many style socket no address is specified
+so that the association cannot be located or the
+SCTP_ABORT flag was specified on a non-existing association.
+.It Bq Er EPIPE
+The socket is unable to send anymore data
+.Dv ( SBS_CANTSENDMORE
+has been set on the socket).
+This typically means that the socket
+is not connected and is a one-to-one style socket.
+.El
+.Sh SEE ALSO
+.Xr sctp 4 ,
+.Xr sendmsg 3 ,
+.Xr connect 2 ,
+.Xr sctp_connectx 3 ,
+.Xr getsockopt 2 ,
+.Xr recv 2 ,
+.Xr select 2 ,
+.Xr socket 2 ,
+.Xr write 2
+.Sh BUGS
+Because in the one-to-many style socket the
+.Fn sctp_sendmsg 
+or
+.Fn sctp_sendmsgx
+may have multiple associations under one endpoint, a
+select on write will only work for a one-to-one style
+socket.
+
diff --git a/lib/libc/sys/Makefile.inc b/lib/libc/sys/Makefile.inc
index 8d2a92e..a753820 100644
--- a/lib/libc/sys/Makefile.inc
+++ b/lib/libc/sys/Makefile.inc
@@ -84,6 +84,7 @@ MAN+=	_exit.2 abort2.2 accept.2 access.2 acct.2  adjtime.2 \
 	sigaction.2 sigaltstack.2 sigpending.2 sigprocmask.2 sigqueue.2 \
 	sigreturn.2 sigstack.2 sigsuspend.2 sigwait.2 sigwaitinfo.2 \
 	socket.2 socketpair.2 stat.2 statfs.2 \
+        sctp_generic_recvmsg.2  sctp_generic_sendmsg.2  sctp_peeloff.2 \
 	swapon.2 symlink.2 sync.2 sysarch.2 syscall.2 \
 	timer_create.2 timer_delete.2 timer_settime.2 \
 	truncate.2 umask.2 undelete.2 \
diff --git a/lib/libc/sys/sctp_generic_recvmsg.2 b/lib/libc/sys/sctp_generic_recvmsg.2
new file mode 100644
index 0000000..c4abc6a
--- /dev/null
+++ b/lib/libc/sys/sctp_generic_recvmsg.2
@@ -0,0 +1,76 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_GENERIC_RECVMSG 2
+.Os
+.Sh NAME
+.Nm sctp_generic_recvmsg
+.Nd receive data from a peer.
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft int
+.Fn sctp_generic_recvmsg "int s" "struct iovec *iov" "int iovlen" "struct sockaddr *from" "socklen_t *fromlen" "struct sctp_sndrcvinfo *sinfo" "int *msgflags"
+.Ft int
+.Sh DESCRIPTION
+The
+.Fn sctp_generic_recvmsg
+is the true system calls used by the
+.Fn sctp_recvmsg
+function call. This call is more efficient since it is a
+true system calls but it is specific to FreeBSD and
+can be expected NOT to be present on any other Operating
+System. For detailed useage please see either the
+.Fn sctp_recvmsg 
+function call. 
+.Sh RETURN VALUES
+The call returns the number of bytes read on success and -1 upon failure.
+.Sh ERRORS
+.Bl -tag -width Er
+.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 ,
+.Xr sctp_recvmsg 3 ,
+
diff --git a/lib/libc/sys/sctp_generic_sendmsg.2 b/lib/libc/sys/sctp_generic_sendmsg.2
new file mode 100644
index 0000000..8d96e69
--- /dev/null
+++ b/lib/libc/sys/sctp_generic_sendmsg.2
@@ -0,0 +1,88 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_GENERIC_SENDMSG 2
+.Os
+.Sh NAME
+.Nm sctp_generic_sendmsg
+.Nm sctp_generic_sendmsg_iov
+.Nd send data to a peer.
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft int
+.Fn sctp_generic_sendmsg "int s" "void *msg" "int msglen" "struct sockaddr *to" "socklen_t len" "struct sctp_sndrcvinfo *sinfo" "int flags"
+.Ft int
+.Fn sctp_generic_sendmsg_iov "int s" "struct iovec *iov" "int iovlen" "struct sockaddr *to" "struct sctp_sndrcvinfo *sinfo" "int flags"
+
+.Sh DESCRIPTION
+The
+.Fn sctp_generic_sendmsg
+and
+.Fn sctp_generic_sendmsg_iov
+are the true system calls used by the
+.Fn sctp_sendmsg
+and 
+.Fn sctp_send
+function calls. These are more efficient since they are
+true system calls but they are specific to FreeBSD and
+can be expected NOT to be present on any other Operating
+System. For detailed useage please see either the
+.Fn sctp_send
+or
+.Fn sctp_sendmsg
+function calls. 
+.Sh RETURN VALUES
+The call returns the number of bytes written on success and -1 upon failure.
+.Sh ERRORS
+.Bl -tag -width Er
+.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 ,
+.Xr sctp_send 3 ,
+.Xr sctp_sendx 3 ,
+.Xr sctp_sendmsg 3 ,
+.Xr sctp_sendmsgx 3 ,
+
diff --git a/lib/libc/sys/sctp_peeloff.2 b/lib/libc/sys/sctp_peeloff.2
new file mode 100644
index 0000000..7daec46
--- /dev/null
+++ b/lib/libc/sys/sctp_peeloff.2
@@ -0,0 +1,82 @@
+.\" 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
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 15, 2006
+.Dt SCTP_PEELOFF 2
+.Os
+.Sh NAME
+.Nm sctp_peeloff
+.Nd detach an association from an one-to-many socket to its on sd
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In sys/sctp.h
+.Ft int
+.Fn sctp_peeloff "int s" "sctp_assoc_t id"
+.Sh DESCRIPTION
+The
+.Fn sctp_peeloff
+system call attempts detach the association specified by
+.Fa id
+into its own seperate socket.
+.Pp
+.Sh RETURN VALUES
+The call returns -1 on failure and the new socket descriptor
+upon success.
+.Sh ERRORS
+The
+.Fn sctp_peeloff
+can return the following errors.
+.Bl -tag -width Er
+.It Bq Er ENOTCONN
+The 
+.Fa id
+given to the call does not map to a valid
+association.
+.It Bq Er E2BIG
+The size of the address list exceeds the amount of
+data provided.
+.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 ,
+