X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fio%2Fraw_socket.cxx;h=d93d971653e15a8904d777f2bc1b7f5e3d1a27a1;hb=201cb61f842ef50a19438e3872ba22e588fa1afc;hp=cf7b20f7bf873b869ace2287e9093c3dc68c19cb;hpb=ed7f2df04e6d30cd654d816257049fa506d97f0b;p=simgear.git

diff --git a/simgear/io/raw_socket.cxx b/simgear/io/raw_socket.cxx
index cf7b20f7..d93d9716 100644
--- a/simgear/io/raw_socket.cxx
+++ b/simgear/io/raw_socket.cxx
@@ -17,7 +17,7 @@
 
      You should have received a copy of the GNU Library General Public
      License along with this library; if not, write to the Free Software
-     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
 */
 
 #ifdef HAVE_CONFIG_H
@@ -63,6 +63,8 @@
 #include <simgear/structure/exception.hxx>
 #include <simgear/threads/SGThread.hxx>
 
+using std::string;
+
 namespace {
 
 class Resolver : public SGThread
@@ -311,6 +313,10 @@ bool IPAddress::lookupNonblocking(const char* host, IPAddress& addr)
 
 const char* IPAddress::getHost () const
 {
+    if (!addr) {
+        return NULL;
+    }
+    
   static char buf [32];
 	long x = ntohl(addr->sin_addr.s_addr);
 	sprintf(buf, "%d.%d.%d.%d",
@@ -321,21 +327,37 @@ const char* IPAddress::getHost () const
 
 unsigned int IPAddress::getIP () const
 {
+    if (!addr) {
+        return 0;
+    }
+    
 	return addr->sin_addr.s_addr;
 }
 
 unsigned int IPAddress::getPort() const
 {
+    if (!addr) {
+        return 0;
+    }
+    
   return ntohs(addr->sin_port);
 }
 
 void IPAddress::setPort(int port)
 {
+    if (!addr) {
+        return;
+    }
+    
     addr->sin_port = htons(port);
 }
 
 unsigned int IPAddress::getFamily () const
 {
+    if (!addr) {
+        return 0;
+    }
+    
 	return addr->sin_family;
 }
 
@@ -363,7 +385,11 @@ const char* IPAddress::getLocalHost ()
 
 bool IPAddress::getBroadcast () const
 {
-  return (addr->sin_addr.s_addr == INADDR_BROADCAST);
+    if (!addr) {
+        return false;
+    }
+    
+    return (addr->sin_addr.s_addr == INADDR_BROADCAST);
 }
 
 unsigned int IPAddress::getAddrLen() const
@@ -381,6 +407,11 @@ struct sockaddr* IPAddress::getAddr() const
     return (struct sockaddr*) addr;
 }
 
+bool IPAddress::isValid() const
+{
+    return (addr != NULL);
+}
+
 Socket::Socket ()
 {
   handle = -1 ;