SCTP_PEELOFF
Section: Linux Programmer's Manual (3)
Updated: 2005-10-25
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NAME
sctp_peeloff - Branch off an association into a separate socket.
SYNOPSIS
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/sctp.h>
int sctp_peeloff(int sd, sctp_assoc_t assoc_id);
int sctp_peeloff_flags(int sd, sctp_assoc_t assoc_id, unsigned flags);
DESCRIPTION
sctp_peeloff
branches off an existing association
assoc_id
on a one-to-many style socket
sd
into a separate socket. The new socket is a one-to-one style socket.
This is particularly desirable when, for instance, the application wishes to
have a number of sporadic message senders/receivers remain under the original
one-to-many style socket, but branch off those assocations carrying high volume
data traffic into their own separate socket descriptors.
sctp_peeloff_flags
is a variant of sctp_peeloff, in which flags describing the behavior of
the newly peeled off socket can be specified. Currently the supported flags
are:
- SOCK_NONBLOCK
-
Specifies that the new socket should not block on io operations.
- SOCK_CLOEXEC
-
Specifies that the new socket should be closed when the owning process calls
exec.
RETURN VALUE
On success, the new socket descriptor representing the branched-off asociation is returned.
On error, -1 is returned, and
errno
is set appropriately.
ERRORS
- EBADF
-
sd
is not a valid descriptor.
- EINVAL
-
The assoc id passed is invalid or if the socket is a one-to-one style socket.
- ENOTSOCK
-
Argument is a descriptor for a file, not a socket.
NOTES
- sctp_peeloff_flags is a linux specific variant of sctp_peeloff. While it will compile on other systems, its use will result in an error return. Portable code should use sctp_peeloff.
-
SEE ALSO
sctp(7)
sctp_bindx(3),
sctp_connectx(3),
sctp_sendmsg(3),
sctp_sendv(3),
sctp_send(3),
sctp_recvmsg(3),
sctp_recvv(3),
sctp_getpaddrs(3),
sctp_getladdrs(3),
sctp_opt_info(3),
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- NOTES
-
- SEE ALSO
-
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