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From: @(#)send.2 8.2 (Berkeley) 2/21/94
.Dd August 1, 2018 .Dt SCTP_OPT_INFO 3 .Os .Sh NAME .Nm sctp_opt_info .Nd get SCTP socket information .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/types.h n sys/socket.h n netinet/sctp.h .Ft int .Fn sctp_opt_info "int sd" "sctp_assoc_t id" "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 those who wish to write portable code amongst multiple operating systems this call should be used for the following SCTP socket options.
p .Dv SCTP_RTOINFO
p .Dv SCTP_ASSOCINFO
p .Dv SCTP_PRIMARY_ADDR
p .Dv SCTP_PEER_ADDR_PARAMS
p .Dv SCTP_DEFAULT_SEND_PARAM
p .Dv SCTP_MAX_SEG
p .Dv SCTP_AUTH_ACTIVE_KEY
p .Dv SCTP_DELAYED_SACK
p .Dv SCTP_MAX_BURST
p .Dv SCTP_CONTEXT
p .Dv SCTP_EVENT
p .Dv SCTP_DEFAULT_SNDINFO
p .Dv SCTP_DEFAULT_PRINFO
p .Dv SCTP_STATUS
p .Dv SCTP_GET_PEER_ADDR_INFO
p .Dv SCTP_PEER_AUTH_CHUNKS
p .Dv SCTP_LOCAL_AUTH_CHUNKS .Sh RETURN VALUES The call returns 0 on success and -1 upon error. .Sh ERRORS The .Fn sctp_opt_info function can return the following errors: l -tag -width Er t Bq Er EBADF The argument .Fa s is not a valid descriptor. t Bq Er EINVAL The argument .Fa arg value was invalid. t Bq Er ENOTSOCK The argument .Fa s is not a socket. t Bq Er EOPNOTSUPP The argument .Fa opt was not one of the above listed SCTP socket options. .El .Sh SEE ALSO .Xr getsockopt 2 , .Xr getsockopt2 2 , .Xr sctp 4 .Rs .%R RFC .%N 6458 .%T "Sockets API Extensions for the Stream Control Transmission Protocol (SCTP)" .%D December 2011 .Re .Sh HISTORY This function first appeared in .Nx 9.0 .
Indexes created Sat Sep 20 22:09:52 GMT 2025