X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/b830f576a81751f4b04bc889fa82aaca0e6fc3ea..d415fc795a69d6a5039964e88f97561183d6ab44:/methods/connect.cc

diff --git a/methods/connect.cc b/methods/connect.cc
index 171622fa5..f768169d1 100644
--- a/methods/connect.cc
+++ b/methods/connect.cc
@@ -164,7 +164,14 @@ static bool ConnectToHostname(std::string const &Host, int const Port,
       struct addrinfo Hints;
       memset(&Hints,0,sizeof(Hints));
       Hints.ai_socktype = SOCK_STREAM;
-      Hints.ai_flags = AI_ADDRCONFIG;
+      Hints.ai_flags = 0;
+      if (_config->FindB("Acquire::Connect::IDN", true) == true)
+	 Hints.ai_flags |= AI_IDN;
+      // see getaddrinfo(3): only return address if system has such a address configured
+      // useful if system is ipv4 only, to not get ipv6, but that fails if the system has
+      // no address configured: e.g. offline and trying to connect to localhost.
+      if (_config->FindB("Acquire::Connect::AddrConfig", true) == true)
+	 Hints.ai_flags |= AI_ADDRCONFIG;
       Hints.ai_protocol = 0;
       
       if(_config->FindB("Acquire::ForceIPv4", false) == true)
@@ -273,21 +280,35 @@ bool Connect(std::string Host,int Port,const char *Service,
       if (_config->FindB("Acquire::EnableSrvRecords", true) == true)
          GetSrvRecords(Host, DefPort, SrvRecords);
    }
-   // we have no SrvRecords for this host, connect right away
-   if(SrvRecords.size() == 0)
-      return ConnectToHostname(Host, Port, Service, DefPort, Fd, 
-                                    TimeOut, Owner);
 
+   size_t stackSize = 0;
    // try to connect in the priority order of the srv records
-   while(SrvRecords.size() > 0)
+   std::string initialHost{std::move(Host)};
+   while(SrvRecords.empty() == false)
    {
+      _error->PushToStack();
+      ++stackSize;
+      // PopFromSrvRecs will also remove the server
       Host = PopFromSrvRecs(SrvRecords).target;
-      if(ConnectToHostname(Host, Port, Service, DefPort, Fd, TimeOut, Owner))
+      auto const ret = ConnectToHostname(Host, Port, Service, DefPort, Fd, TimeOut, Owner);
+      if (ret)
+      {
+	 while(stackSize--)
+	    _error->RevertToStack();
          return true;
-
-      // we couldn't connect to this one, use the next
-      SrvRecords.erase(SrvRecords.begin());
+      }
    }
+   Host = std::move(initialHost);
 
-   return false;
+   // we have no (good) SrvRecords for this host, connect right away
+   _error->PushToStack();
+   ++stackSize;
+   auto const ret = ConnectToHostname(Host, Port, Service, DefPort, Fd,
+	 TimeOut, Owner);
+   while(stackSize--)
+      if (ret)
+	 _error->RevertToStack();
+      else
+	 _error->MergeWithStack();
+   return ret;
 }