[2549] Simplified functions writing an address to a buffer.

src/lib/dhcp/iface_mgr.cc

@@ -470,7 +470,7 @@ IfaceMgr::getLocalAddress(const IOAddress& remote_addr, const uint16_t port) {
     asio::error_code err_code;
     // If remote address is broadcast address we have to
     // allow this on the socket.
-    if (remote_addr.getAddress().is_v4() &&
+    if (remote_addr.isV4() &&
         (remote_addr == IOAddress(DHCP_IPV4_BROADCAST_ADDRESS))) {
         // Socket has to be open prior to setting the broadcast
         // option. Otherwise set_option will complain about
@@ -557,9 +557,7 @@ int IfaceMgr::openSocket6(Iface& iface, const IOAddress& addr, uint16_t port) {
         addr6.sin6_scope_id = if_nametoindex(iface.getName().c_str());
     }
 
-    memcpy(&addr6.sin6_addr,
-           addr.getAddress().to_v6().to_bytes().data(),
-           sizeof(addr6.sin6_addr));
+    memcpy(&addr6.sin6_addr, &addr.toBytes()[0], sizeof(addr6.sin6_addr));
 #ifdef HAVE_SA_LEN
     addr6.sin6_len = sizeof(addr6);
 #endif
@@ -661,7 +659,7 @@ IfaceMgr::send(const Pkt6Ptr& pkt) {
     to.sin6_family = AF_INET6;
     to.sin6_port = htons(pkt->getRemotePort());
     memcpy(&to.sin6_addr,
-           pkt->getRemoteAddr().getAddress().to_v6().to_bytes().data(),
+           &pkt->getRemoteAddr().toBytes()[0],
            16);
     to.sin6_scope_id = pkt->getIndex();
 

src/lib/dhcp/option6_addrlst.cc

@@ -72,7 +72,7 @@ void Option6AddrLst::pack(isc::util::OutputBuffer& buf) {
 
     for (AddressContainer::const_iterator addr=addrs_.begin();
          addr!=addrs_.end(); ++addr) {
-        buf.writeData(addr->getAddress().to_v6().to_bytes().data(), V6ADDRESS_LEN);
+        buf.writeData(&addr->toBytes()[0], V6ADDRESS_LEN);
     }
 }
 

src/lib/dhcp/option6_iaaddr.cc

@@ -52,8 +52,7 @@ void Option6IAAddr::pack(isc::util::OutputBuffer& buf) {
     buf.writeUint16(len() - getHeaderLen());
 
 
-    buf.writeData(addr_.getAddress().to_v6().to_bytes().data(),
-                  isc::asiolink::V6ADDRESS_LEN);
+    buf.writeData(&addr_.toBytes()[0], isc::asiolink::V6ADDRESS_LEN);
 
     buf.writeUint32(preferred_);
     buf.writeUint32(valid_);

src/lib/dhcp/option_data_types.cc

@@ -146,27 +146,8 @@ OptionDataTypeUtil::readAddress(const std::vector<uint8_t>& buf,
 void
 OptionDataTypeUtil::writeAddress(const asiolink::IOAddress& address,
                                  std::vector<uint8_t>& buf) {
-    // @todo There is a ticket 2396 submitted, which adds the
-    // functionality to return a buffer representation of
-    // IOAddress. If so, this function can be simplified.
-    if (address.getAddress().is_v4()) {
-        asio::ip::address_v4::bytes_type addr_bytes =
-            address.getAddress().to_v4().to_bytes();
-        // Increase the buffer size by the size of IPv4 address.
-        buf.resize(buf.size() + addr_bytes.size());
-        std::copy_backward(addr_bytes.begin(), addr_bytes.end(),
-                           buf.end());
-    } else if (address.getAddress().is_v6()) {
-        asio::ip::address_v6::bytes_type addr_bytes =
-            address.getAddress().to_v6().to_bytes();
-        // Incresase the buffer size by the size of IPv6 address.
-        buf.resize(buf.size() + addr_bytes.size());
-        std::copy_backward(addr_bytes.begin(), addr_bytes.end(),
-                           buf.end());
-    } else {
-        isc_throw(BadDataTypeCast, "the address " << address.toText()
-                  << " is neither valid IPv4 not IPv6 address.");
-    }
+    const std::vector<uint8_t>& vec = address.toBytes();
+    buf.insert(buf.end(), vec.begin(), vec.end());
 }
 
 void

src/lib/dhcp/option_definition.cc

@@ -382,7 +382,7 @@ OptionDefinition::writeToBuffer(const std::string& value,
             if (!address.isV4() && !address.isV6()) {
                 isc_throw(BadDataTypeCast, "provided address " << address.toText()
                           << " is not a valid "
-                          << (address.getAddress().is_v4() ? "IPv4" : "IPv6")
+                          << (address.isV4() ? "IPv4" : "IPv6")
                           << " address");
             }
             OptionDataTypeUtil::writeAddress(address, buf);

src/lib/dhcp/tests/option_custom_unittest.cc

@@ -38,15 +38,8 @@ public:
     /// @param [out] buf output buffer.
     void writeAddress(const asiolink::IOAddress& address,
                       std::vector<uint8_t>& buf) {
-        if (address.isV4()) {
-            asio::ip::address_v4::bytes_type buf_addr =
-                address.getAddress().to_v4().to_bytes();
-            buf.insert(buf.end(), buf_addr.begin(), buf_addr.end());
-        } else if (address.isV6()) {
-            asio::ip::address_v6::bytes_type buf_addr =
-                address.getAddress().to_v6().to_bytes();
-            buf.insert(buf.end(), buf_addr.begin(), buf_addr.end());
-        }
+        const std::vector<uint8_t>& vec = address.toBytes();
+        buf.insert(buf.end(), vec.begin(), vec.end());
     }
 
     /// @brief Write integer (signed or unsigned) into a buffer.

src/lib/dhcp/tests/option_data_types_unittest.cc

@@ -34,15 +34,8 @@ public:
     /// @param [out] buf output buffer.
     void writeAddress(const asiolink::IOAddress& address,
                       std::vector<uint8_t>& buf) {
-        if (address.isV4()) {
-            asio::ip::address_v4::bytes_type buf_addr =
-                address.getAddress().to_v4().to_bytes();
-            buf.insert(buf.end(), buf_addr.begin(), buf_addr.end());
-        } else if (address.isV6()) {
-            asio::ip::address_v6::bytes_type buf_addr =
-                address.getAddress().to_v6().to_bytes();
-            buf.insert(buf.end(), buf_addr.begin(), buf_addr.end());
-        }
+        const std::vector<uint8_t>& vec = address.toBytes();
+        buf.insert(buf.end(), vec.begin(), vec.end());
     }
 
     /// @brief Write integer (signed or unsigned) into a buffer.

src/lib/dhcp/tests/option_definition_unittest.cc

@@ -207,10 +207,9 @@ TEST_F(OptionDefinitionTest, ipv6AddressArray) {
     // Write addresses to the buffer.
     OptionBuffer buf(addrs.size() * asiolink::V6ADDRESS_LEN);
     for (int i = 0; i < addrs.size(); ++i) {
-        asio::ip::address_v6::bytes_type addr_bytes =
-            addrs[i].getAddress().to_v6().to_bytes();
-        ASSERT_EQ(asiolink::V6ADDRESS_LEN, addr_bytes.size());
-        std::copy(addr_bytes.begin(), addr_bytes.end(),
+        const std::vector<uint8_t>& vec = addrs[i].toBytes();
+        ASSERT_EQ(asiolink::V6ADDRESS_LEN, vec.size());
+        std::copy(vec.begin(), vec.end(),
                   buf.begin() + i * asiolink::V6ADDRESS_LEN);
     }
     // Create DHCPv6 option from this buffer. Once option is created it is
@@ -306,10 +305,9 @@ TEST_F(OptionDefinitionTest, ipv4AddressArray) {
     // Write addresses to the buffer.
     OptionBuffer buf(addrs.size() * asiolink::V4ADDRESS_LEN);
     for (int i = 0; i < addrs.size(); ++i) {
-        asio::ip::address_v4::bytes_type addr_bytes =
-            addrs[i].getAddress().to_v4().to_bytes();
-        ASSERT_EQ(asiolink::V4ADDRESS_LEN, addr_bytes.size());
-        std::copy(addr_bytes.begin(), addr_bytes.end(),
+        const std::vector<uint8_t> vec = addrs[i].toBytes();
+        ASSERT_EQ(asiolink::V4ADDRESS_LEN, vec.size());
+        std::copy(vec.begin(), vec.end(),
                   buf.begin() + i * asiolink::V4ADDRESS_LEN);
     }
     // Create DHCPv6 option from this buffer. Once option is created it is
@@ -512,11 +510,10 @@ TEST_F(OptionDefinitionTest, recordIAAddr6) {
     OptionPtr option_v6;
     asiolink::IOAddress addr_v6("2001:0db8::ff00:0042:8329");
     OptionBuffer buf(asiolink::V6ADDRESS_LEN);
-    ASSERT_TRUE(addr_v6.getAddress().is_v6());
-    asio::ip::address_v6::bytes_type addr_bytes =
-        addr_v6.getAddress().to_v6().to_bytes();
-    ASSERT_EQ(asiolink::V6ADDRESS_LEN, addr_bytes.size());
-    std::copy(addr_bytes.begin(), addr_bytes.end(), buf.begin());
+    ASSERT_TRUE(addr_v6.isV6());
+    const std::vector<uint8_t>& vec = addr_v6.toBytes();
+    ASSERT_EQ(asiolink::V6ADDRESS_LEN, vec.size());
+    std::copy(vec.begin(), vec.end(), buf.begin());
 
     for (int i = 0; i < option6_iaaddr_len - asiolink::V6ADDRESS_LEN; ++i) {
         buf.push_back(i);

src/lib/dhcpsrv/addr_utilities.cc

@@ -54,7 +54,7 @@ isc::asiolink::IOAddress firstAddrInPrefix6(const isc::asiolink::IOAddress& pref
 
     // First we copy the whole address as 16 bytes.
     uint8_t packed[V6ADDRESS_LEN];
-    memcpy(packed, prefix.getAddress().to_v6().to_bytes().data(), 16);
+    memcpy(packed, &prefix.toBytes()[0], 16);
 
     // If the length is divisible by 8, it is simple. We just zero out the host
     // part. Otherwise we need to handle the byte that has to be partially
@@ -132,7 +132,7 @@ isc::asiolink::IOAddress lastAddrInPrefix6(const isc::asiolink::IOAddress& prefi
 
     // First we copy the whole address as 16 bytes.
     uint8_t packed[V6ADDRESS_LEN];
-    memcpy(packed, prefix.getAddress().to_v6().to_bytes().data(), 16);
+    memcpy(packed, &prefix.toBytes()[0], 16);
 
     // if the length is divisible by 8, it is simple. We just fill the host part
     // with ones. Otherwise we need to handle the byte that has to be partially

src/lib/dhcpsrv/alloc_engine.cc

@@ -36,11 +36,11 @@ AllocEngine::IterativeAllocator::increaseAddress(const isc::asiolink::IOAddress&
     // First we copy the whole address as 16 bytes.
     if (addr.isV4()) {
         // IPv4
-        std::memcpy(packed, addr.getAddress().to_v4().to_bytes().data(), 4);
+        std::memcpy(packed, &addr.toBytes()[0], 4);
         len = 4;
     } else {
         // IPv6
-        std::memcpy(packed, addr.getAddress().to_v6().to_bytes().data(), 16);
+        std::memcpy(packed, &addr.toBytes()[0], 16);
         len = 16;
     }