1 files changed, 157 insertions, 0 deletions
diff --git a/source/core/StarNetImpl.hpp b/source/core/StarNetImpl.hpp
new file mode 100644
index 0000000..80d75da
--- /dev/null
+++ b/source/core/StarNetImpl.hpp
@@ -0,0 +1,157 @@
+#ifdef STAR_SYSTEM_FAMILY_WINDOWS
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <stdio.h>
+#else
+#ifdef STAR_SYSTEM_FREEBSD
+#include <sys/types.h>
+#include <sys/socket.h>
+#endif
+#include <errno.h>
+#include <string.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/udp.h>
+#include <netinet/tcp.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#endif
+
+#include "StarHostAddress.hpp"
+
+#ifndef AI_ADDRCONFIG
+#define AI_ADDRCONFIG 0
+#endif
+
+namespace Star {
+
+#ifdef STAR_SYSTEM_FAMILY_WINDOWS
+struct WindowsSocketInitializer {
+  WindowsSocketInitializer() {
+    WSADATA wsaData;
+    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
+      fatalError("WSAStartup failed", false);
+  };
+};
+static WindowsSocketInitializer g_windowsSocketInitializer;
+#endif
+
+inline String netErrorString() {
+#ifdef STAR_SYSTEM_WINDOWS
+  LPVOID lpMsgBuf = NULL;
+
+  FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+      NULL,
+      WSAGetLastError(),
+      MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
+      (LPTSTR)&lpMsgBuf,
+      0,
+      NULL);
+
+  String result = String((char*)lpMsgBuf);
+
+  if (lpMsgBuf != NULL)
+    LocalFree(lpMsgBuf);
+
+  return result;
+#else
+  return strf("%s - %s", errno, strerror(errno));
+#endif
+}
+
+inline bool netErrorConnectionReset() {
+#ifdef STAR_SYSTEM_FAMILY_WINDOWS
+  return WSAGetLastError() == WSAECONNRESET || WSAGetLastError() == WSAENETRESET;
+#else
+  return errno == ECONNRESET || errno == ETIMEDOUT;
+#endif
+}
+
+inline bool netErrorInterrupt() {
+#ifdef STAR_SYSTEM_FAMILY_WINDOWS
+  return WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK;
+#else
+  return errno == EAGAIN || errno == EINTR || errno == EWOULDBLOCK;
+#endif
+}
+
+inline void setAddressFromNative(HostAddressWithPort& addressWithPort, NetworkMode mode, struct sockaddr_storage* sockAddr) {
+  switch (mode) {
+    case NetworkMode::IPv4: {
+      struct sockaddr_in* addr4 = (struct sockaddr_in*)sockAddr;
+      addressWithPort = HostAddressWithPort(mode, (uint8_t*)&(addr4->sin_addr.s_addr), ntohs(addr4->sin_port));
+      break;
+    }
+    case NetworkMode::IPv6: {
+      struct sockaddr_in6* addr6 = (struct sockaddr_in6*)sockAddr;
+      addressWithPort = HostAddressWithPort(mode, (uint8_t*)&addr6->sin6_addr.s6_addr, ntohs(addr6->sin6_port));
+      break;
+    }
+    default:
+      throw NetworkException("Invalid network mode for setAddressFromNative");
+  }
+}
+
+inline void setNativeFromAddress(HostAddressWithPort const& addressWithPort, struct sockaddr_storage* sockAddr, socklen_t* sockAddrLen) {
+  switch (addressWithPort.address().mode()) {
+    case NetworkMode::IPv4: {
+      struct sockaddr_in* addr4 = (struct sockaddr_in*)sockAddr;
+      *sockAddrLen = sizeof(*addr4);
+
+      memset(addr4, 0, *sockAddrLen);
+      addr4->sin_family = AF_INET;
+      addr4->sin_port = htons(addressWithPort.port());
+      memcpy(((char*)&addr4->sin_addr.s_addr), addressWithPort.address().bytes(), addressWithPort.address().size());
+
+      break;
+    }
+    case NetworkMode::IPv6: {
+      struct sockaddr_in6* addr6 = (struct sockaddr_in6*)sockAddr;
+      *sockAddrLen = sizeof(*addr6);
+
+      memset(addr6, 0, *sockAddrLen);
+      addr6->sin6_family = AF_INET6;
+      addr6->sin6_port = htons(addressWithPort.port());
+      memcpy(((char*)&addr6->sin6_addr.s6_addr), addressWithPort.address().bytes(), addressWithPort.address().size());
+      break;
+    }
+    default:
+      throw NetworkException("Invalid network mode for setNativeFromAddress");
+  }
+}
+
+#ifdef STAR_SYSTEM_FAMILY_WINDOWS
+inline bool invalidSocketDescriptor(SOCKET socket) {
+  return socket == INVALID_SOCKET;
+}
+#else
+inline bool invalidSocketDescriptor(int socket) {
+  return socket < 0;
+}
+#endif
+
+struct SocketImpl {
+  SocketImpl() {
+    socketDesc = 0;
+  }
+
+  void setSockOpt(int level, int optname, const void* optval, socklen_t len) {
+#ifdef STAR_SYSTEM_FAMILY_WINDOWS
+    int ret = ::setsockopt(socketDesc, level, optname, (const char*)optval, len);
+#else
+    int ret = ::setsockopt(socketDesc, level, optname, optval, len);
+#endif
+    if (ret < 0)
+      throw NetworkException(strf("setSockOpt failed to set %d, %d: %s", level, optname, netErrorString()));
+  }
+
+#ifdef STAR_SYSTEM_FAMILY_WINDOWS
+  SOCKET socketDesc;
+#else
+  int socketDesc;
+#endif
+};
+
+}