SCTP_PEELOFF - Online Linux Manual PageSection : 3
Updated : 2005-10-25
Source : Linux 2.6
Note : Linux Programmer's Manual
NAMEsctp_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);
DESCRIPTIONsctp_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 VALUEOn success, the new socket descriptor representing the branched-off asociation is returned. On error, −1 is returned, and errno is set appropriately.
ERRORSEBADF 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.
NOTESsctp_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 ALSOsctp(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), 0
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