Fix scopeid parsing from avahi -> QHostAddress

libqcp/qcpmodel.cpp

@@ -14,9 +14,7 @@ namespace QCP {
 				case 0: return m_service.hostname();
 				case 1:
 					if (m_service.address().protocol() == QAbstractSocket::IPv6Protocol) {
-						QString scope = m_service.address().scopeId();
-						if (!scope.isEmpty()) scope = "%" + scope;
-						return QString("[%1%2]:%3").arg(m_service.address().toString(), scope).arg(m_service.port());
+						return QString("[%1]:%2").arg(m_service.address().toString()).arg(m_service.port());
 					} else {
 						return QString("%1:%2").arg(m_service.address().toString()).arg(m_service.port());
 					}

libqtavahi/qtavahi.cpp

@@ -14,7 +14,17 @@
 #include <QSize>
 #include <QtEndian>
 
+extern "C" {
 #include <netinet/in.h>
+#include <net/if.h>
+}
+
+static QString ifidx2name(unsigned int ifindex) {
+	char buf[IF_NAMESIZE];
+	char *n = ::if_indextoname(ifindex, buf);
+	if (!n) return QString();
+	return QString::fromUtf8(n, qstrnlen(n, IF_NAMESIZE));
+}
 
 namespace Avahi {
 
@@ -23,12 +33,9 @@ namespace Avahi {
 		case AVAHI_PROTO_INET:
 			return QHostAddress(qFromBigEndian((quint32) address->data.ipv4.address));
 		case AVAHI_PROTO_INET6: {
-				struct sockaddr_in6 a;
-				memset(&a, 0, sizeof(a));
-				a.sin6_family = AF_INET6;
-				a.sin6_scope_id = interface;
-				memcpy(a.sin6_addr.s6_addr, address->data.ipv6.address, 16);
-				return QHostAddress((const sockaddr*) &a);
+				QHostAddress addr((quint8*) address->data.ipv6.address);
+				if (interface >= 0) addr.setScopeId(ifidx2name(interface));
+				return addr;
 			}
 		case AVAHI_PROTO_UNSPEC:
 			return QHostAddress();