Replace #define IPV6 with <config defaultbind="ipv6">, and autodetect if not specified

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@12550 e03df62e-2008-0410-955e-edbf42e46eb7

4 files changed, 37 insertions, 41 deletions

diff --git a/src/configreader.cpp b/src/configreader.cpp
index 6f576fcd7..1905b36d0 100644
--- a/src/configreader.cpp
+++ b/src/configreader.cpp
@@ -22,7 +22,7 @@ ServerConfig::ServerConfig()
 {
 	WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0;
 	NoUserDns = OperSpyWhois = HideBans = HideSplits = UndernetMsgPrefix = false;
-	CycleHosts = InvBypassModes = true;
+	WildcardIPv6 = CycleHosts = InvBypassModes = true;
 	dns_timeout = 5;
 	MaxTargets = 20;
 	NetBufferSize = 10240;
@@ -498,6 +498,24 @@ void ServerConfig::Fill()
 	if (!sid.empty() && !ServerInstance->IsSID(sid))
 		throw CoreException(sid + " is not a valid server ID. A server ID must be 3 characters long, with the first character a digit and the next two characters a digit or letter.");
 
+	std::string defbind = options->getString("defaultbind");
+	if (assign(defbind) == "ipv4")
+	{
+		WildcardIPv6 = false;
+	}
+	else if (assign(defbind) == "ipv6")
+	{
+		WildcardIPv6 = true;
+	}
+	else
+	{
+		WildcardIPv6 = true;
+		int socktest = socket(AF_INET6, SOCK_STREAM, 0);
+		if (socktest < 0)
+			WildcardIPv6 = false;
+		else
+			close(socktest);
+	}
 	ConfigTagList tags = ConfTags("uline");
 	for(ConfigIter i = tags.first; i != tags.second; ++i)
 	{
diff --git a/src/listensocket.cpp b/src/listensocket.cpp
index b0fce7b5b..d511d536e 100644
--- a/src/listensocket.cpp
+++ b/src/listensocket.cpp
@@ -11,8 +11,6 @@
  * ---------------------------------------------------
  */
 
-/* $Core */
-
 #include "inspircd.h"
 #include "socket.h"
 #include "socketengine.h"
diff --git a/src/modules/m_spanningtree/capab.cpp b/src/modules/m_spanningtree/capab.cpp
index 1e2fe710a..cb3611d33 100644
--- a/src/modules/m_spanningtree/capab.cpp
+++ b/src/modules/m_spanningtree/capab.cpp
@@ -124,10 +124,6 @@ void TreeSocket::SendCapabilities(int phase)
 	WriteLine("CAPAB CHANMODES :" + BuildModeList(MODETYPE_CHANNEL));
 	WriteLine("CAPAB USERMODES :" + BuildModeList(MODETYPE_USER));
 
-	int ip6 = 0;
-#ifdef IPV6
-	ip6 = 1;
-#endif
 	std::string extra;
 	/* Do we have sha256 available? If so, we send a challenge */
 	if (Utils->ChallengeResponse && (ServerInstance->Modules->Find("m_sha256.so")))
@@ -146,7 +142,6 @@ void TreeSocket::SendCapabilities(int phase)
 			" MAXKICK="+ConvToStr(ServerInstance->Config->Limits.MaxKick)+
 			" MAXGECOS="+ConvToStr(ServerInstance->Config->Limits.MaxGecos)+
 			" MAXAWAY="+ConvToStr(ServerInstance->Config->Limits.MaxAway)+
-			" IP6NATIVE="+ConvToStr(ip6)+
 			" IP6SUPPORT=1"+
 			" PROTOCOL="+ConvToStr(ProtocolVersion)+extra+
 			" PREFIX="+ServerInstance->Modes->BuildPrefixes()+
diff --git a/src/socket.cpp b/src/socket.cpp
index 63b373cce..3ee996193 100644
--- a/src/socket.cpp
+++ b/src/socket.cpp
@@ -145,13 +145,16 @@ bool irc::sockets::aptosa(const std::string& addr, int port, irc::sockets::socka
 	memset(&sa, 0, sizeof(sa));
 	if (addr.empty() || addr.c_str()[0] == '*')
 	{
-#ifdef IPV6
-		sa.in6.sin6_family = AF_INET6;
-		sa.in6.sin6_port = htons(port);
-#else
-		sa.in4.sin_family = AF_INET;
-		sa.in4.sin_port = htons(port);
-#endif
+		if (ServerInstance->Config->WildcardIPv6)
+		{
+			sa.in6.sin6_family = AF_INET6;
+			sa.in6.sin6_port = htons(port);
+		}
+		else
+		{
+			sa.in4.sin_family = AF_INET;
+			sa.in4.sin_port = htons(port);
+		}
 		return true;
 	}
 	else if (inet_pton(AF_INET, addr.c_str(), &sa.in4.sin_addr) > 0)
@@ -210,35 +213,17 @@ std::string irc::sockets::sockaddrs::str() const
 	char buffer[MAXBUF];
 	if (sa.sa_family == AF_INET)
 	{
-#ifndef IPV6
-		if (in4.sin_addr.s_addr == 0)
-		{
-			sprintf(buffer, "*:%u", ntohs(in4.sin_port));
-		}
-		else
-#endif
-		{
-			const uint8_t* bits = reinterpret_cast<const uint8_t*>(&in4.sin_addr);
-			sprintf(buffer, "%d.%d.%d.%d:%u", bits[0], bits[1], bits[2], bits[3], ntohs(in4.sin_port));
-		}
+		const uint8_t* bits = reinterpret_cast<const uint8_t*>(&in4.sin_addr);
+		sprintf(buffer, "%d.%d.%d.%d:%u", bits[0], bits[1], bits[2], bits[3], ntohs(in4.sin_port));
 	}
 	else if (sa.sa_family == AF_INET6)
 	{
-#ifdef IPV6
-		if (!memcmp(all_zero, &in6.sin6_addr, 16))
-		{
-			sprintf(buffer, "*:%u", ntohs(in6.sin6_port));
-		}
-		else
-#endif
-		{
-			buffer[0] = '[';
-			if (!inet_ntop(AF_INET6, &in6.sin6_addr, buffer+1, MAXBUF - 10))
-				return "<unknown>"; // should never happen, buffer is large enough
-			int len = strlen(buffer);
-			// no need for snprintf, buffer has at least 9 chars left, max short len = 5
-			sprintf(buffer + len, "]:%u", ntohs(in6.sin6_port));
-		}
+		buffer[0] = '[';
+		if (!inet_ntop(AF_INET6, &in6.sin6_addr, buffer+1, MAXBUF - 10))
+			return "<unknown>"; // should never happen, buffer is large enough
+		int len = strlen(buffer);
+		// no need for snprintf, buffer has at least 9 chars left, max short len = 5
+		sprintf(buffer + len, "]:%u", ntohs(in6.sin6_port));
 	}
 	else
 		return "<unknown>";