Modified some file names.

src/ip_address.cpp

@@ -0,0 +1,89 @@
+/*
+ * libtins is a net packet wrapper library for crafting and
+ * interpreting sniffed packets.
+ *
+ * Copyright (C) 2011 Nasel
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <stdexcept>
+#include <sstream>
+#include "ip_address.h"
+#include "endianness.h"
+
+using std::string;
+
+namespace Tins{
+IPv4Address::IPv4Address(uint32_t ip) 
+: ip_addr(Endian::be_to_host(ip)) {
+    
+}
+
+IPv4Address::IPv4Address(const char *ip) {
+    ip_addr = ip ? ip_to_int(ip) : 0; 
+}
+
+IPv4Address::IPv4Address(const std::string &ip) 
+: ip_addr(ip_to_int(ip)) {
+      
+} 
+
+IPv4Address::operator uint32_t() const { 
+    return Endian::host_to_be(ip_addr); 
+}
+
+std::string IPv4Address::to_string() const {
+    std::ostringstream oss;
+    oss << *this;
+    return oss.str();
+}
+
+uint32_t IPv4Address::ip_to_int(const string &ip) {
+    uint32_t result(0), i(0), end, bytes_found(0);
+    while(i < ip.size() && bytes_found < 4) {
+        uint16_t this_byte(0);
+        end = i + 3;
+        while(i < ip.size() && i < end && ip[i] != '.') {
+            if(ip[i] < '0' || ip[i] > '9')
+                throw std::runtime_error("Non-digit character found in ip");
+            this_byte = (this_byte * 10)  + (ip[i] - '0');
+            i++;
+        }
+        if (this_byte > 0xFF) {
+            throw std::runtime_error("Byte greater than 255");
+        }
+        result = (result << 8) | (this_byte & 0xFF);
+        bytes_found++;
+        if(bytes_found < 4 && i < ip.size() && ip[i] == '.')
+            i++;
+    }
+    if(bytes_found < 4 || (i < ip.size() && bytes_found == 4))
+        throw std::runtime_error("Invalid ip address");
+    return result;
+}
+
+std::ostream &operator<<(std::ostream &output, const IPv4Address &addr) {
+    int mask(24);
+    uint32_t ip_addr = addr.ip_addr;
+    while(mask >=0) {
+        output << ((ip_addr >> mask) & 0xff);
+        if(mask)
+            output <<  '.';
+        mask -= 8;
+    }
+    return output;;
+}
+}