[tests] Check CIPAddress::pton(..)

test/filelist.maf

@@ -2,6 +2,7 @@
 SOURCES
 test_buffer.cpp
 test_bonding.cpp
+test_common.cpp
 test_connection_timeout.cpp
 test_many_connections.cpp
 test_cryspr.cpp

test/test_common.cpp

@@ -0,0 +1,67 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gtest/gtest.h"
+#include "utilities.h"
+#include "common.h"
+
+void test_cipaddress_pton(const char* peer_ip, int family, const uint32_t (&ip)[4])
+{
+    const int port = 4200;
+
+    // Peer
+    sockaddr_storage ss;
+    ss.ss_family = family;
+
+    void* sin_addr = nullptr;
+    if (family == AF_INET)
+    {
+        sockaddr_in* const sa = (sockaddr_in*)&ss;
+        sa->sin_port          = htons(port);
+        sin_addr              = &sa->sin_addr;
+    }
+    else // IPv6
+    {
+        sockaddr_in6* const sa = (sockaddr_in6*)&ss;
+        sa->sin6_port          = htons(port);
+        sin_addr               = &sa->sin6_addr;
+    }
+
+    ASSERT_EQ(inet_pton(family, peer_ip, sin_addr), 1);
+    const sockaddr_any peer(ss);
+
+    // HOST
+    sockaddr_any host(family);
+    host.hport(port);
+
+    CIPAddress::pton(host, ip, peer);
+    EXPECT_EQ(peer, host) << "Peer " << peer.str() << " host " << host.str();
+}
+
+// Example IPv4 address: 192.168.0.1
+TEST(CIPAddress, IPv4_pton)
+{
+    const char*    peer_ip = "192.168.0.1";
+    const uint32_t ip[4]   = {htobe32(0xC0A80001), 0, 0, 0};
+    test_cipaddress_pton(peer_ip, AF_INET, ip);
+}
+
+// Example IPv6 address: 2001:db8:85a3:8d3:1319:8a2e:370:7348
+TEST(CIPAddress, IPv6_pton)
+{
+    const char*    peer_ip = "2001:db8:85a3:8d3:1319:8a2e:370:7348";
+    const uint32_t ip[4]   = {htobe32(0x20010db8), htobe32(0x85a308d3), htobe32(0x13198a2e), htobe32(0x03707348)};
+
+    test_cipaddress_pton(peer_ip, AF_INET6, ip);
+}
+
+// Example IPv4 address: 192.168.0.1
+// Maps to IPv6 address: 0:0:0:0:0:FFFF:192.168.0.1
+// Simplified: 	                 ::FFFF:192.168.0.1
+TEST(CIPAddress, IPv4_in_IPv6_pton)
+{
+    const char*    peer_ip = "::ffff:192.168.0.1";
+    const uint32_t ip[4]   = {0, 0, htobe32(0x0000FFFF), htobe32(0xC0A80001)};
+
+    test_cipaddress_pton(peer_ip, AF_INET6, ip);
+}