NAME
rtable_walk —
iterate over a routing table
SYNOPSIS
#include
<net/rtable.h>
int
rtable_walk(unsigned int
rtableid, sa_family_t af, struct
rtentry **prt, int (*func)(struct rtentry *, void *,
unsigned int), void *arg);
DESCRIPTION
The
rtable_walk()
function iterates over the routing table rtableid and
applies func to all entries of address family
af.
The iteration is interrupted as soon as
func returns a non-zero value. If
prt is not NULL when the
iteration is interrupted, it is set to the current routing entry. In that
case
rtfree()
must be called on the routing entry pointed to by
prt.
CONTEXT
rtable_walk() can be called during
autoconf or from process context.
RETURN VALUES
rtable_walk() returns any non-zero value
returned by func. It may also fail with:
- [
EAFNOSUPPORT] - A routing table with ID of rtableid and address family of af doesn't exist.