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Man Pages


Manual Reference Pages  -  SCTP_OPT_INFO (3)

NAME

sctp_opt_info - get SCTP socket information

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Bugs

LIBRARY


.Lb libc

SYNOPSIS


.In sys/types.h
.In sys/socket.h
.In netinet/sctp.h int sctp_opt_info int sd sctp_assoc_t id int opt void *arg socklen_t *size

DESCRIPTION

The sctp_opt_info call provides a multi-os compatible method for getting specific getsockopt data where an association identification needs to be passed into the operating system. For
.Fx a direct getsockopt may be used, since
.Fx has the ability to pass information into the operating system on a getsockopt call. Other operating systems may not have this ability. For those who wish to write portable code amongst multiple operating systems this call should be used for the following SCTP socket options.

SCTP_RTOINFO

SCTP_ASSOCINFO

SCTP_PRIMARY_ADDR

SCTP_PEER_ADDR_PARAMS

SCTP_DEFAULT_SEND_PARAM

SCTP_MAX_SEG

SCTP_AUTH_ACTIVE_KEY

SCTP_DELAYED_SACK

SCTP_MAX_BURST

SCTP_CONTEXT

SCTP_EVENT

SCTP_DEFAULT_SNDINFO

SCTP_DEFAULT_PRINFO

SCTP_STATUS

SCTP_GET_PEER_ADDR_INFO

SCTP_PEER_AUTH_CHUNKS

SCTP_LOCAL_AUTH_CHUNKS

RETURN VALUES

The call returns 0 on success and -1 upon error.

ERRORS

The sctp_opt_info function can return the following errors:
[EINVAL]
  The argument arg value was invalid.
[EOPNOTSUPP]
  The argument opt was not one of the above listed SCTP socket options.
[EBADF]
  The argument s is not a valid descriptor.
[ENOTSOCK]
  The argument s is not a socket.

SEE ALSO

getsockopt(2), sctp(4)

BUGS

Because the structure used for arg of the SCTP_MAX_BURST socket option has changed in FreeBSD 9.0 and higher, using SCTP_MAX_BURST as opt is only supported in FreeBSD 9.0 and higher.
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