Merge remote-tracking branch 'mvo/feature/apt-show-nice' into debian/experimental...

[apt.git] / methods / connect.cc

diff --git a/methods/connect.cc b/methods/connect.cc
index 145001fb37c2aa637cfaecca46b944a0acc2b001..fc7a72ee93a00ef9d3f9a9886d2ba9a7e083145c 100644 (file)
--- a/methods/connect.cc
+++ b/methods/connect.cc
@@ -11,30 +11,41 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
-#include "connect.h"
+#include <config.h>
+
 #include <apt-pkg/error.h>
 #include <apt-pkg/fileutl.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/acquire-method.h>
+#include <apt-pkg/configuration.h>
 
 #include <stdio.h>
 #include <errno.h>
 #include <unistd.h>
 #include <sstream>
 
+#include<set>
+#include<string>
+
 // Internet stuff
 #include <netinet/in.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
 #include <netdb.h>
 
+#include "connect.h"
 #include "rfc2553emu.h"
 #include <apti18n.h>
                                                                        /*}}}*/
 
-static string LastHost;
+static std::string LastHost;
 static int LastPort = 0;
 static struct addrinfo *LastHostAddr = 0;
 static struct addrinfo *LastUsed = 0;
 
+// Set of IP/hostnames that we timed out before or couldn't resolve
+static std::set<std::string> bad_addr;
+
 // RotateDNS - Select a new server from a DNS rotation                 /*{{{*/
 // ---------------------------------------------------------------------
 /* This is called during certain errors in order to recover by selecting a 
@@ -50,7 +61,7 @@ void RotateDNS()
 // DoConnect - Attempt a connect operation                             /*{{{*/
 // ---------------------------------------------------------------------
 /* This helper function attempts a connection to a single address. */
-static bool DoConnect(struct addrinfo *Addr,string Host,
+static bool DoConnect(struct addrinfo *Addr,std::string Host,
                      unsigned long TimeOut,int &Fd,pkgAcqMethod *Owner)
 {
    // Show a status indicator
@@ -64,6 +75,10 @@ static bool DoConnect(struct addrinfo *Addr,string Host,
               NI_NUMERICHOST|NI_NUMERICSERV);
    Owner->Status(_("Connecting to %s (%s)"),Host.c_str(),Name);
 
+   // if that addr did timeout before, we do not try it again
+   if(bad_addr.find(std::string(Name)) != bad_addr.end())
+      return false;
+
    /* If this is an IP rotation store the IP we are using.. If something goes
       wrong this will get tacked onto the end of the error message */
    if (LastHostAddr->ai_next != 0)
@@ -88,6 +103,7 @@ static bool DoConnect(struct addrinfo *Addr,string Host,
    /* This implements a timeout for connect by opening the connection
       nonblocking */
    if (WaitFd(Fd,true,TimeOut) == false) {
+      bad_addr.insert(bad_addr.begin(), std::string(Name));
       Owner->SetFailReason("Timeout");
       return _error->Error(_("Could not connect to %s:%s (%s), "
                           "connection timed out"),Host.c_str(),Service,Name);
@@ -104,6 +120,9 @@ static bool DoConnect(struct addrinfo *Addr,string Host,
       errno = Err;
       if(errno == ECONNREFUSED)
          Owner->SetFailReason("ConnectionRefused");
+      else if (errno == ETIMEDOUT)
+        Owner->SetFailReason("ConnectionTimedOut");
+      bad_addr.insert(bad_addr.begin(), std::string(Name));
       return _error->Errno("connect",_("Could not connect to %s:%s (%s)."),Host.c_str(),
                           Service,Name);
    }
@@ -114,7 +133,7 @@ static bool DoConnect(struct addrinfo *Addr,string Host,
 // Connect - Connect to a server                                       /*{{{*/
 // ---------------------------------------------------------------------
 /* Performs a connection to the server */
-bool Connect(string Host,int Port,const char *Service,int DefPort,int &Fd,
+bool Connect(std::string Host,int Port,const char *Service,int DefPort,int &Fd,
             unsigned long TimeOut,pkgAcqMethod *Owner)
 {
    if (_error->PendingError() == true)
@@ -146,8 +165,20 @@ bool Connect(string Host,int Port,const char *Service,int DefPort,int &Fd,
       struct addrinfo Hints;
       memset(&Hints,0,sizeof(Hints));
       Hints.ai_socktype = SOCK_STREAM;
+      Hints.ai_flags = AI_ADDRCONFIG;
       Hints.ai_protocol = 0;
       
+      if(_config->FindB("Acquire::ForceIPv4", false) == true)
+         Hints.ai_family = AF_INET;
+      else if(_config->FindB("Acquire::ForceIPv6", false) == true)
+         Hints.ai_family = AF_INET6;
+      else
+         Hints.ai_family = AF_UNSPEC;
+
+      // if we couldn't resolve the host before, we don't try now
+      if(bad_addr.find(Host) != bad_addr.end()) 
+        return _error->Error(_("Could not resolve '%s'"),Host.c_str());
+
       // Resolve both the host and service simultaneously
       while (1)
       {
@@ -163,6 +194,7 @@ bool Connect(string Host,int Port,const char *Service,int DefPort,int &Fd,
                  DefPort = 0;
                  continue;
               }
+              bad_addr.insert(bad_addr.begin(), Host);
               Owner->SetFailReason("ResolveFailure");
               return _error->Error(_("Could not resolve '%s'"),Host.c_str());
            }
@@ -173,8 +205,11 @@ bool Connect(string Host,int Port,const char *Service,int DefPort,int &Fd,
               return _error->Error(_("Temporary failure resolving '%s'"),
                                    Host.c_str());
            }
-           return _error->Error(_("Something wicked happened resolving '%s:%s' (%i)"),
-                                Host.c_str(),ServStr,Res);
+           if (Res == EAI_SYSTEM)
+              return _error->Errno("getaddrinfo", _("System error resolving '%s:%s'"),
+                                      Host.c_str(),ServStr);
+           return _error->Error(_("Something wicked happened resolving '%s:%s' (%i - %s)"),
+                                Host.c_str(),ServStr,Res,gai_strerror(Res));
         }
         break;
       }
@@ -220,6 +255,6 @@ bool Connect(string Host,int Port,const char *Service,int DefPort,int &Fd,
 
    if (_error->PendingError() == true)
       return false;   
-   return _error->Error(_("Unable to connect to %s %s:"),Host.c_str(),ServStr);
+   return _error->Error(_("Unable to connect to %s:%s:"),Host.c_str(),ServStr);
 }
                                                                        /*}}}*/