Diff: Endpoint.cpp

Revision:

16:2d471deff212

Parent:

6:cd2e5559786d

--- a/Endpoint.cpp	Mon Aug 13 09:38:00 2012 +0000
+++ b/Endpoint.cpp	Fri Mar 01 15:30:16 2013 +0000
@@ -1,61 +1,73 @@
-/* Copyright (C) 2012 mbed.org, MIT License
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
- * and associated documentation files (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge, publish, distribute,
- * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or
- * substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
- * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-#include "Socket/Socket.h"
-#include "Socket/Endpoint.h"
-#include <cstring>
-
-using std::memset;
-
-Endpoint::Endpoint()  {
-    reset_address();
-}
-Endpoint::~Endpoint() {}
-
-void Endpoint::reset_address(void) {
-    memset(&_remoteHost, 0, sizeof(struct sockaddr_in));
-    _ipAddress[0] = '\0';
-}
-
-int Endpoint::set_address(const char* host, const int port) {
-    //Resolve DNS address or populate hard-coded IP address
-    struct hostent *server = ::gethostbyname(host);
-    if (server == NULL)
-        return -1; //Could not resolve address
-    
-    reset_address();
-    
-    // Set IP address
-    std::memcpy((char*) &_remoteHost.sin_addr.s_addr,
-                (char*) server->h_addr_list[0], server->h_length);
-    _remoteHost.sin_family = AF_INET;
-    
-    // Set port
-    _remoteHost.sin_port = htons(port);
-    
-    return 0;
-}
-
-char* Endpoint::get_address() {
-    if ((_ipAddress[0] == '\0') && (_remoteHost.sin_addr.s_addr != 0))
-            inet_ntoa_r(_remoteHost.sin_addr, _ipAddress, sizeof(_ipAddress));
-    return _ipAddress;
-}
-
-int   Endpoint::get_port() {
-    return ntohs(_remoteHost.sin_port);
-}
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "Socket/Socket.h"
+#include "Socket/Endpoint.h"
+#include <cstring>
+#include <cstdio>
+
+Endpoint::Endpoint()  {
+    reset_address();
+}
+Endpoint::~Endpoint() {}
+
+void Endpoint::reset_address(void) {
+    std::memset(&_remoteHost, 0, sizeof(struct sockaddr_in));
+    _ipAddress[0] = '\0';
+}
+
+#include "stdio.h"
+
+int Endpoint::set_address(const char* host, const int port) {
+    reset_address();
+    
+    // IP Address
+    char address[5];
+    char *p_address = address;
+    
+    // Dot-decimal notation
+    int result = std::sscanf(host, "%3u.%3u.%3u.%3u",
+        (unsigned int*)&address[0], (unsigned int*)&address[1],
+        (unsigned int*)&address[2], (unsigned int*)&address[3]);
+    
+    if (result != 4) {
+        // Resolve address with DNS
+        struct hostent *host_address = lwip_gethostbyname(host);
+        if (host_address == NULL)
+            return -1; //Could not resolve address
+        p_address = (char*)host_address->h_addr_list[0];
+    }
+    std::memcpy((char*)&_remoteHost.sin_addr.s_addr, p_address, 4);
+    
+    // Address family
+    _remoteHost.sin_family = AF_INET;
+    
+    // Set port
+    _remoteHost.sin_port = htons(port);
+    
+    return 0;
+}
+
+char* Endpoint::get_address() {
+    if ((_ipAddress[0] == '\0') && (_remoteHost.sin_addr.s_addr != 0))
+            inet_ntoa_r(_remoteHost.sin_addr, _ipAddress, sizeof(_ipAddress));
+    return _ipAddress;
+}
+
+int   Endpoint::get_port() {
+    return ntohs(_remoteHost.sin_port);
+}