'\" te
.\" Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved.
.TH sctp_send 3SOCKET "19 Mar 2004" "SunOS 5.11" "Sockets Library Functions"
.SH NAME
sctp_send \- send message from an SCTP socket
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lsocket\fR \fB -lnsl \fR \fB -lsctp \fR [ \fIlibrary\fR... ]
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/sctp.h>

\fBssize_t\fR \fBsctp_send\fR(\fBint\fR \fIs\fR, \fBconst void *\fR\fImsg\fR, \fBsize_t *\fR\fIlen\fR,
     \fBconst struct sctp_sndrcvinfo *\fR\fIsinfo\fR, \fBint\fR \fIflags\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBsctp_send()\fR function sends messages from one-to-one and one-to-many style SCTP endpoints. The following parameters can be set:
.sp
.ne 2
.mk
.na
\fB\fIs\fR\fR
.ad
.RS 7n
.rt  
Socket created by \fBsocket\fR(3SOCKET)
.RE

.sp
.ne 2
.mk
.na
\fB\fImsg\fR\fR
.ad
.RS 7n
.rt  
Message to be sent
.RE

.sp
.ne 2
.mk
.na
\fB\fIlen\fR\fR
.ad
.RS 7n
.rt  
Size of the message to be sent in bytes
.RE

.sp
.LP
The caller completes the \fIsinfo\fR parameter with values used to send a message. Such values might include the stream number, payload protocol identifier, time to live, and the SCTP message flag and context. For a one-to-many socket, the association ID can be specified in the \fIsinfo\fR parameter to send a message to the association represented in the ID.
.sp
.LP
Flags supported for \fBsctp_send()\fR are reserved for future use.
.SH RETURN VALUES
.sp
.LP
Upon successful completion, the \fBsctp_send()\fR function returns the number of bytes sent. The function returns \fB-1\fR if an error occurs.
.SH ERRORS
.sp
.LP
The \fBsctp_send()\fR function fails under the following conditions.
.sp
.ne 2
.mk
.na
\fB\fBEBADF\fR\fR
.ad
.RS 16n
.rt  
The \fIs\fR argument is an invalid file descriptor.
.RE

.sp
.ne 2
.mk
.na
\fB\fBENOTSOCK\fR\fR
.ad
.RS 16n
.rt  
The \fIs\fR argument is not a socket.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEOPNOTSUPP\fR\fR
.ad
.RS 16n
.rt  
\fBMSG_ABORT\fR or \fBMSG_EOF\fR is set in the \fBsinfo_flags\fR field of \fBsinfo\fR for a one-to-one style SCTP socket.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEPIPE\fR\fR
.ad
.RS 16n
.rt  
The socket is shutting down and no more writes are allowed.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEAGAIN\fR\fR
.ad
.RS 16n
.rt  
The socket is non-blocking and the transmit queue is full.
.RE

.sp
.ne 2
.mk
.na
\fB\fBENOTCONN\fR\fR
.ad
.RS 16n
.rt  
There is no established association.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 16n
.rt  
Control message length is incorrect.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 16n
.rt  
Specified destination address does not belong to the association.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 16n
.rt  
The \fBstream_no\fR is outside the number of outbound streams supported by the association.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEAFNOSUPPORT\fR\fR
.ad
.RS 16n
.rt  
Address family of the specified destination address is other than \fBAF_INET\fR or \fBAF_INET6\fR.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelSafe
.TE

.SH SEE ALSO
.sp
.LP
\fBaccept\fR(3SOCKET), \fBbind\fR(3SOCKET), \fBconnect\fR(3SOCKET), \fBin.h\fR(3HEAD), \fBlibsctp\fR(3LIB), \fBlisten\fR(3SOCKET), \fBsctp_sendmsg\fR(3SOCKET), \fBsendmsg\fR(3SOCKET), \fBsocket\fR(3SOCKET), \fBsocket.h\fR(3HEAD), \fBsctp\fR(7P)