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net, refactor: pass reference for peer address in GetReachabilityFrom

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The address of the peer always exists (because addr is a member of
CNode), so it was not possible to pass a nullptr before.
Also remove NET_UNKNOWN, which is unused now.
This commit is contained in:
Martin Zumsande
2023-04-11 16:10:28 -04:00
parent 62d73f5370
commit e4d541c7cf
4 changed files with 9 additions and 13 deletions
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16
src/netaddress.cpp
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@@ -723,19 +723,16 @@ std::vector<unsigned char> CNetAddr::GetAddrBytes() const
// private extensions to enum Network, only returned by GetExtNetwork,
// and only used in GetReachabilityFrom
static const int NET_UNKNOWN = NET_MAX + 0;
static const int NET_TEREDO = NET_MAX + 1;
int static GetExtNetwork(const CNetAddr *addr)
static const int NET_TEREDO = NET_MAX;
int static GetExtNetwork(const CNetAddr& addr)
{
if (addr == nullptr)
return NET_UNKNOWN;
if (addr->IsRFC4380())
if (addr.IsRFC4380())
return NET_TEREDO;
return addr->GetNetwork();
return addr.GetNetwork();
}
/** Calculates a metric for how reachable (*this) is from a given partner */
int CNetAddr::GetReachabilityFrom(const CNetAddr *paddrPartner) const
int CNetAddr::GetReachabilityFrom(const CNetAddr& paddrPartner) const
{
enum Reachability {
REACH_UNREACHABLE,
@@ -750,7 +747,7 @@ int CNetAddr::GetReachabilityFrom(const CNetAddr *paddrPartner) const
if (!IsRoutable() || IsInternal())
return REACH_UNREACHABLE;
int ourNet = GetExtNetwork(this);
int ourNet = GetExtNetwork(*this);
int theirNet = GetExtNetwork(paddrPartner);
bool fTunnel = IsRFC3964() || IsRFC6052() || IsRFC6145();
@@ -790,7 +787,6 @@ int CNetAddr::GetReachabilityFrom(const CNetAddr *paddrPartner) const
case NET_IPV6: return REACH_IPV6_WEAK;
case NET_IPV4: return REACH_IPV4;
}
case NET_UNKNOWN:
case NET_UNROUTABLE:
default:
switch(ourNet) {