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.\" Copyright (c) 1983, 1991, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
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.Dd October 30, 2007
.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 netinet/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
.Fn sctp_generic_sendmsg
and
.Fn sctp_generic_sendmsg_iov
are the true system calls used by the
.Xr sctp_sendmsg 3
and 
.Xr sctp_send 3
function calls.
These are more efficient since they are
true system calls but they are specific to
.Fx
and can be expected
.Em not
to be present on any other operating
system.
For detailed usage please see either the
.Xr sctp_send 3
or
.Xr sctp_sendmsg 3
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_send 3 ,
.Xr sctp_sendmsg 3 ,
.Xr sctp_sendmsgx 3 ,
.Xr sctp_sendx 3 ,
.Xr sctp 4
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