04-17-2011
Quote:
Originally Posted by
vistastar
Why can't socket() in sys/socket.h be seen as a syscall, since it is provieded by OS?
It
can be a system call but isn't always. On some systems it is, or at least used to be, a library.
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LEARN ABOUT DEBIAN
sctp_peeloff
SCTP_PEELOFF(3) Linux Programmer's Manual SCTP_PEELOFF(3)
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);
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.
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.
SEE ALSO
sctp(7) sctp_bindx(3), sctp_connectx(3), sctp_sendmsg(3), sctp_send(3), sctp_recvmsg(3), sctp_getpaddrs(3), sctp_getladdrs(3),
sctp_opt_info(3),
Linux 2.6 2005-10-25 SCTP_PEELOFF(3)