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authorBrian Haley <brian.haley@hp.com>2006-12-12 20:09:49 -0500
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-13 19:48:25 -0500
commitbefffe901649e2cc421d0d150c4379d01658cf6b (patch)
treea990965641fb181bdf1228d2a347ecdf87ab8742 /include/linux/nodemask.h
parent832e3ca62d6ee1893db05f5202c24ae5331e19ba (diff)
[IPV6]: Fix IPV6_UNICAST_HOPS getsockopt().
> Relevant standard (RFC 3493) notes: > > The IPV6_UNICAST_HOPS option may be used with getsockopt() to > determine the hop limit value that the system will use for subsequent > unicast packets sent via that socket. > > I don't reckon -1 could be the hop limit value. -1 means un-initialized. > IMHO, the value from > case 1 (if socket is connected to some destination), otherwise case 2 > (if bound to a scope interface) or ultimately the default hop limit > ought to be returned instead, as it will be most often correct, while > the current behavior is always wrong, unless setsockopt() has been used > first. I don't if some people may think doing a route lookup in > getsockopt might be overly expensive, but at least the two other cases > should be ok, particularly the last one. The following patch seems to work for me, but this code has behaved this way for a while, so don't know if it will break any existing apps. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/nodemask.h')
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