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net: Make DNS lookup code testable

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This commit is contained in:
practicalswift
2020-06-29 09:44:12 +00:00
parent a8b0892b74
commit c6b4bfb4b3
2 changed files with 76 additions and 61 deletions
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21
src/netbase.h
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@@ -64,6 +64,11 @@ struct ProxyCredentials
std::string password;
};
/**
* Wrapper for getaddrinfo(3). Do not use directly: call Lookup/LookupHost/LookupNumeric/LookupSubNet.
*/
std::vector<CNetAddr> WrappedGetAddrInfo(const std::string& name, bool allow_lookup);
enum Network ParseNetwork(const std::string& net);
std::string GetNetworkName(enum Network net);
/** Return a vector of publicly routable Network names; optionally append NET_UNROUTABLE. */
@@ -74,12 +79,16 @@ bool IsProxy(const CNetAddr &addr);
bool SetNameProxy(const proxyType &addrProxy);
bool HaveNameProxy();
bool GetNameProxy(proxyType &nameProxyOut);
bool LookupHost(const std::string& name, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup);
bool LookupHost(const std::string& name, CNetAddr& addr, bool fAllowLookup);
bool Lookup(const std::string& name, CService& addr, int portDefault, bool fAllowLookup);
bool Lookup(const std::string& name, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions);
CService LookupNumeric(const std::string& name, int portDefault = 0);
bool LookupSubNet(const std::string& strSubnet, CSubNet& subnet);
using DNSLookupFn = std::function<std::vector<CNetAddr>(const std::string&, bool)>;
extern DNSLookupFn g_dns_lookup;
bool LookupHost(const std::string& name, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup, DNSLookupFn dns_lookup_function = g_dns_lookup);
bool LookupHost(const std::string& name, CNetAddr& addr, bool fAllowLookup, DNSLookupFn dns_lookup_function = g_dns_lookup);
bool Lookup(const std::string& name, CService& addr, int portDefault, bool fAllowLookup, DNSLookupFn dns_lookup_function = g_dns_lookup);
bool Lookup(const std::string& name, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions, DNSLookupFn dns_lookup_function = g_dns_lookup);
CService LookupNumeric(const std::string& name, int portDefault = 0, DNSLookupFn dns_lookup_function = g_dns_lookup);
bool LookupSubNet(const std::string& strSubnet, CSubNet& subnet, DNSLookupFn dns_lookup_function = g_dns_lookup);
/**
* Create a TCP socket in the given address family.