diff options
| author | Cory Fields <cory-nospam-@coryfields.com> | 2017-05-23 20:04:38 -0400 |
|---|---|---|
| committer | Cory Fields <cory-nospam-@coryfields.com> | 2017-06-14 18:05:00 -0400 |
| commit | 7f31762cb6261806542cc6d1188ca07db98a6950 (patch) | |
| tree | 6ed637d6ebbb0a3d572b1dfa02bbd152fbae6c32 /src/net.cpp | |
| parent | fbf5d3ba15161f71cbb84a51c1703c22b651e8a9 (diff) | |
| download | bitcoin-7f31762cb6261806542cc6d1188ca07db98a6950.tar.xz | |
net: add an internal subnet for representing unresolved hostnames
We currently do two resolves for dns seeds: one for the results, and one to
serve in addrman as the source for those addresses.
There's no requirement that the source hostname resolves to the stored
identifier, only that the mapping is unique. So rather than incurring the
second lookup, combine a private subnet with a hash of the hostname.
The resulting v6 ip is guaranteed not to be publicy routable, and has only a
negligible chance of colliding with a user's internal network (which would be
of no consequence anyway).
Diffstat (limited to 'src/net.cpp')
| -rw-r--r-- | src/net.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/net.cpp b/src/net.cpp index 75d1719e86..e10016d983 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -240,7 +240,7 @@ bool RemoveLocal(const CService& addr) /** Make a particular network entirely off-limits (no automatic connects to it) */ void SetLimited(enum Network net, bool fLimited) { - if (net == NET_UNROUTABLE) + if (net == NET_UNROUTABLE || net == NET_INTERNAL) return; LOCK(cs_mapLocalHost); vfLimited[net] = fLimited; |