Don't allow resolving of std::string:s with embedded NUL characters.
Avoid using C-style NUL-terminated strings as arguments in the netbase interface
Add tests.
The only place in where C-style NUL-terminated strings are actually needed is here:
+ if (!ValidAsCString(name)) {
+ return false;
+ }
...
- int nErr = getaddrinfo(pszName, nullptr, &aiHint, &aiRes);
+ int nErr = getaddrinfo(name.c_str(), nullptr, &aiHint, &aiRes);
if (nErr)
return false;
Interface changes:
-bool LookupHost(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup);
+bool LookupHost(const std::string& name, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup);
-bool LookupHost(const char *pszName, CNetAddr& addr, bool fAllowLookup);
+bool LookupHost(const std::string& name, CNetAddr& addr, bool fAllowLookup);
-bool Lookup(const char *pszName, CService& addr, int portDefault, bool fAllowLookup);
+bool Lookup(const std::string& name, CService& addr, int portDefault, bool fAllowLookup);
-bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions);
+bool Lookup(const std::string& name, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions);
-bool LookupSubNet(const char *pszName, CSubNet& subnet);
+bool LookupSubNet(const std::string& strSubnet, CSubNet& subnet);
-CService LookupNumeric(const char *pszName, int portDefault = 0);
+CService LookupNumeric(const std::string& name, int portDefault = 0);
-bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, const SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed);
+bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, const SOCKET& hSocketRet, int nTimeout, bool& outProxyConnectionFailed);
It should be noted that the ConnectThroughProxy change (from bool *outProxyConnectionFailed to bool& outProxyConnectionFailed) has nothing to do with NUL handling but I thought it was worth doing when touching this file :)
