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