broadcast addr can be NULL

TheAssemblyArmada · Mar 16, 2024 · 2450d58 · 2450d58
1 parent 83c8956
commit 2450d58
Showing 1 changed file with 9 additions and 5 deletions.
diff --git a/common/wspudp.cpp b/common/wspudp.cpp
@@ -266,11 +266,15 @@ bool UDPInterfaceClass::Open_Socket(SOCKET)
             *((uint32_t*)a) = tmp_addr->s_addr;
             LocalAddresses.Add(a);
 
-            tmp_addr = &((struct sockaddr_in*)ifa->ifa_broadaddr)->sin_addr;
-            inet_ntop(AF_INET, tmp_addr, buf, INET_ADDRSTRLEN);
-            sprintf(temp, "RA95: Using broadcast address of: %s\n", buf);
-            fprintf(stderr, temp);
-            Set_Broadcast_Address(buf);
+            if ((struct sockaddr_in*)ifa->ifa_broadaddr == 0) {
+                fprintf(stderr, "RA95: No broadcast address\n");
+            } else {
+                tmp_addr = &((struct sockaddr_in*)ifa->ifa_broadaddr)->sin_addr;
+                inet_ntop(AF_INET, tmp_addr, buf, INET_ADDRSTRLEN);
+                sprintf(temp, "RA95: Using broadcast address of: %s\n", buf);
+                fprintf(stderr, temp);
+                Set_Broadcast_Address(buf);
+            }
         }
     }