add new config options "Acquire::ForceIPv4" and

[apt.git] / methods / connect.cc

diff --git a/methods/connect.cc b/methods/connect.cc
index 16fb6e793519c6e590a2df9d3029a92337767401..35f4723ce33b2dbb3fac9cb96059107e95eba21c 100644 (file)
--- a/methods/connect.cc
+++ b/methods/connect.cc
@@ -15,6 +15,9 @@
 
 #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>
@@ -35,13 +38,13 @@
 #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<string> bad_addr;
+static std::set<std::string> bad_addr;
 
 // RotateDNS - Select a new server from a DNS rotation                 /*{{{*/
 // ---------------------------------------------------------------------
@@ -58,7 +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
@@ -73,7 +76,7 @@ static bool DoConnect(struct addrinfo *Addr,string Host,
    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(string(Name)) != bad_addr.end())
+   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
@@ -100,7 +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(), string(Name));
+      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);
@@ -119,7 +122,7 @@ static bool DoConnect(struct addrinfo *Addr,string Host,
          Owner->SetFailReason("ConnectionRefused");
       else if (errno == ETIMEDOUT)
         Owner->SetFailReason("ConnectionTimedOut");
-      bad_addr.insert(bad_addr.begin(), string(Name));
+      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);
    }
@@ -130,7 +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)
@@ -165,6 +168,13 @@ bool Connect(string Host,int Port,const char *Service,int DefPort,int &Fd,
       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());
@@ -195,6 +205,9 @@ bool Connect(string Host,int Port,const char *Service,int DefPort,int &Fd,
               return _error->Error(_("Temporary failure resolving '%s'"),
                                    Host.c_str());
            }
+           if (Res == EAI_SYSTEM)
+              return _error->Error(_("System error resolving '%s:%s' (%s)"),
+                                   Host.c_str(),ServStr,strerror(errno));
            return _error->Error(_("Something wicked happened resolving '%s:%s' (%i - %s)"),
                                 Host.c_str(),ServStr,Res,gai_strerror(Res));
         }