mirror of
https://github.com/AlexandreRouma/SDRPlusPlus.git
synced 2025-06-27 12:57:50 +02:00
cleanup
This commit is contained in:
AlexandreRouma
@ -1,5 +1,5 @@
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#pragma once
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#include "net.h"
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#include <utils/net.h>
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#include <dsp/stream.h>
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#include <dsp/types.h>
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#include <memory>
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@ -1,403 +0,0 @@
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#include "net.h"
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#include <string.h>
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#include <codecvt>
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#ifdef _WIN32
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#define WOULD_BLOCK (WSAGetLastError() == WSAEWOULDBLOCK)
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#else
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#define WOULD_BLOCK (errno == EWOULDBLOCK)
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#endif
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namespace net {
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bool _init = false;
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// === Private functions ===
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void init() {
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if (_init) { return; }
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#ifdef _WIN32
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// Initialize WinSock2
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WSADATA wsa;
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if (WSAStartup(MAKEWORD(2, 2), &wsa)) {
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throw std::runtime_error("Could not initialize WinSock2");
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return;
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}
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#else
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// Disable SIGPIPE to avoid closing when the remote host disconnects
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signal(SIGPIPE, SIG_IGN);
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#endif
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_init = true;
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}
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bool queryHost(uint32_t* addr, std::string host) {
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hostent* ent = gethostbyname(host.c_str());
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if (!ent || !ent->h_addr_list[0]) { return false; }
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*addr = *(uint32_t*)ent->h_addr_list[0];
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return true;
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}
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void closeSocket(SockHandle_t sock) {
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#ifdef _WIN32
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shutdown(sock, SD_BOTH);
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closesocket(sock);
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#else
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shutdown(sock, SHUT_RDWR);
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close(sock);
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#endif
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}
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void setNonblocking(SockHandle_t sock) {
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#ifdef _WIN32
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u_long enabled = 1;
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ioctlsocket(sock, FIONBIO, &enabled);
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#else
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fcntl(sock, F_SETFL, O_NONBLOCK);
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#endif
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}
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// === Address functions ===
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Address::Address() {
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memset(&addr, 0, sizeof(addr));
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}
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Address::Address(const std::string& host, int port) {
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// Initialize WSA if needed
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init();
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// Lookup host
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hostent* ent = gethostbyname(host.c_str());
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if (!ent || !ent->h_addr_list[0]) {
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throw std::runtime_error("Unknown host");
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}
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// Build address
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_addr.s_addr = *(uint32_t*)ent->h_addr_list[0];
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addr.sin_port = htons(port);
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}
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Address::Address(IP_t ip, int port) {
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_addr.s_addr = htonl(ip);
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addr.sin_port = htons(port);
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}
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std::string Address::getIPStr() {
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char buf[128];
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IP_t ip = getIP();
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sprintf(buf, "%d.%d.%d.%d", (ip >> 24) & 0xFF, (ip >> 16) & 0xFF, (ip >> 8) & 0xFF, ip & 0xFF);
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return buf;
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}
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IP_t Address::getIP() {
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return htonl(addr.sin_addr.s_addr);
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}
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void Address::setIP(IP_t ip) {
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addr.sin_addr.s_addr = htonl(ip);
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}
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int Address::getPort() {
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return htons(addr.sin_port);
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}
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void Address::setPort(int port) {
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addr.sin_port = htons(port);
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}
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// === Socket functions ===
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Socket::Socket(SockHandle_t sock, const Address* raddr) {
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this->sock = sock;
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if (raddr) {
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this->raddr = new Address(*raddr);
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}
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}
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Socket::~Socket() {
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close();
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if (raddr) { delete raddr; }
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}
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void Socket::close() {
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if (!open) { return; }
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open = false;
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closeSocket(sock);
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}
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bool Socket::isOpen() {
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return open;
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}
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SocketType Socket::type() {
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return raddr ? SOCKET_TYPE_UDP : SOCKET_TYPE_TCP;
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}
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int Socket::send(const uint8_t* data, size_t len, const Address* dest) {
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return sendto(sock, (const char*)data, len, 0, (sockaddr*)(dest ? &dest->addr : (raddr ? &raddr->addr : NULL)), sizeof(sockaddr_in));
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}
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int Socket::sendstr(const std::string& str, const Address* dest) {
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return send((const uint8_t*)str.c_str(), str.length(), dest);
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}
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int Socket::recv(uint8_t* data, size_t maxLen, bool forceLen, int timeout, Address* dest) {
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// Create FD set
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fd_set set;
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FD_ZERO(&set);
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FD_SET(sock, &set);
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// Define timeout
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timeval tv;
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tv.tv_sec = 0;
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tv.tv_usec = timeout * 1000;
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int read = 0;
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bool blocking = (timeout != NONBLOCKING);
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do {
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// Wait for data or error if
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if (blocking) {
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int err = select(sock+1, &set, NULL, &set, (timeout > 0) ? &tv : NULL);
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if (err <= 0) { return err; }
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}
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// Receive
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int addrLen = sizeof(sockaddr_in);
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int err = ::recvfrom(sock, (char*)&data[read], maxLen - read, 0,(sockaddr*)(dest ? &dest->addr : NULL), (socklen_t*)(dest ? &addrLen : NULL));
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if (err <= 0 && !WOULD_BLOCK) {
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close();
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return err;
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}
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read += err;
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}
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while (blocking && forceLen && read < maxLen);
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return read;
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}
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int Socket::recvline(std::string& str, int maxLen, int timeout, Address* dest) {
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// Disallow nonblocking mode
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if (timeout < 0) { return -1; }
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str.clear();
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int read = 0;
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while (true) {
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char c;
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int err = recv((uint8_t*)&c, 1, false, timeout, dest);
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if (err <= 0) { return err; }
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if (c == '\n') { break; }
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str += c;
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read++;
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if (maxLen && read >= maxLen) { break; }
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}
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return read;
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}
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// === Listener functions ===
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Listener::Listener(SockHandle_t sock) {
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this->sock = sock;
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}
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Listener::~Listener() {
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stop();
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}
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void Listener::stop() {
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closeSocket(sock);
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open = false;
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}
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bool Listener::listening() {
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return open;
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}
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std::shared_ptr<Socket> Listener::accept(Address* dest, int timeout) {
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// Create FD set
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fd_set set;
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FD_ZERO(&set);
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FD_SET(sock, &set);
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// Define timeout
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timeval tv;
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tv.tv_sec = 0;
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tv.tv_usec = timeout * 1000;
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// Wait for data or error
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if (timeout != NONBLOCKING) {
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int err = select(sock+1, &set, NULL, &set, (timeout > 0) ? &tv : NULL);
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if (err <= 0) { return NULL; }
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}
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// Accept
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int addrLen = sizeof(sockaddr_in);
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SockHandle_t s = ::accept(sock, (sockaddr*)(dest ? &dest->addr : NULL), (socklen_t*)(dest ? &addrLen : NULL));
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if ((int)s < 0) {
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if (!WOULD_BLOCK) { stop(); }
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return NULL;
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}
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// Enable nonblocking mode
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setNonblocking(s);
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return std::make_shared<Socket>(s);
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}
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// === Creation functions ===
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std::map<std::string, InterfaceInfo> listInterfaces() {
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// Init library if needed
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init();
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std::map<std::string, InterfaceInfo> ifaces;
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#ifdef _WIN32
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// Pre-allocate buffer
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ULONG size = sizeof(IP_ADAPTER_ADDRESSES);
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PIP_ADAPTER_ADDRESSES addresses = (PIP_ADAPTER_ADDRESSES)malloc(size);
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// Reallocate to real size
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if (GetAdaptersAddresses(AF_INET, 0, NULL, addresses, &size) == ERROR_BUFFER_OVERFLOW) {
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addresses = (PIP_ADAPTER_ADDRESSES)realloc(addresses, size);
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if (GetAdaptersAddresses(AF_INET, 0, NULL, addresses, &size)) {
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throw std::exception("Could not list network interfaces");
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}
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}
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// Save data
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std::wstring_convert<std::codecvt_utf8<wchar_t>> utfConv;
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for (auto iface = addresses; iface; iface = iface->Next) {
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InterfaceInfo info;
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auto ip = iface->FirstUnicastAddress;
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if (!ip || ip->Address.lpSockaddr->sa_family != AF_INET) { continue; }
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info.address = ntohl(*(uint32_t*)&ip->Address.lpSockaddr->sa_data[2]);
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info.netmask = ~((1 << (32 - ip->OnLinkPrefixLength)) - 1);
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info.broadcast = info.address | (~info.netmask);
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ifaces[utfConv.to_bytes(iface->FriendlyName)] = info;
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}
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// Free tables
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free(addresses);
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#else
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// Get iface list
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struct ifaddrs* addresses = NULL;
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getifaddrs(&addresses);
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// Save data
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for (auto iface = addresses; iface; iface = iface->ifa_next) {
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if (iface->ifa_addr->sa_family != AF_INET) { continue; }
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InterfaceInfo info;
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info.address = ntohl(*(uint32_t*)&iface->ifa_addr->sa_data[2]);
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info.netmask = ntohl(*(uint32_t*)&iface->ifa_netmask->sa_data[2]);
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info.broadcast = info.address | (~info.netmask);
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ifaces[iface->ifa_name] = info;
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}
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// Free iface list
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freeifaddrs(addresses);
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#endif
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return ifaces;
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}
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std::shared_ptr<Listener> listen(const Address& addr) {
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// Init library if needed
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init();
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// Create socket
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SockHandle_t s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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// TODO: Support non-blockign mode
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#ifndef _WIN32
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// Allow port reusing if the app was killed or crashed
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// and the socket is stuck in TIME_WAIT state.
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// This option has a different meaning on Windows,
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// so we use it only for non-Windows systems
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int enable = 1;
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if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) < 0) {
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closeSocket(s);
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throw std::runtime_error("Could not configure socket");
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return NULL;
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}
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#endif
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// Bind socket to the port
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if (bind(s, (sockaddr*)&addr.addr, sizeof(sockaddr_in))) {
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closeSocket(s);
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throw std::runtime_error("Could not bind socket");
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return NULL;
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}
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// Enable listening
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if (::listen(s, SOMAXCONN) != 0) {
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throw std::runtime_error("Could start listening for connections");
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return NULL;
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}
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// Enable nonblocking mode
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setNonblocking(s);
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|
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// Return listener class
|
||||
return std::make_shared<Listener>(s);
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}
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|
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std::shared_ptr<Listener> listen(std::string host, int port) {
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return listen(Address(host, port));
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}
|
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|
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std::shared_ptr<Socket> connect(const Address& addr) {
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// Init library if needed
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init();
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// Create socket
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SockHandle_t s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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|
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// Connect to server
|
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if (::connect(s, (sockaddr*)&addr.addr, sizeof(sockaddr_in))) {
|
||||
closeSocket(s);
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throw std::runtime_error("Could not connect");
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return NULL;
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}
|
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|
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// Enable nonblocking mode
|
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setNonblocking(s);
|
||||
|
||||
// Return socket class
|
||||
return std::make_shared<Socket>(s);
|
||||
}
|
||||
|
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std::shared_ptr<Socket> connect(std::string host, int port) {
|
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return connect(Address(host, port));
|
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}
|
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|
||||
std::shared_ptr<Socket> openudp(const Address& raddr, const Address& laddr) {
|
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// Init library if needed
|
||||
init();
|
||||
|
||||
// Create socket
|
||||
SockHandle_t s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
|
||||
|
||||
// Bind socket to local port
|
||||
if (bind(s, (sockaddr*)&laddr.addr, sizeof(sockaddr_in))) {
|
||||
closeSocket(s);
|
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throw std::runtime_error("Could not bind socket");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
// Return socket class
|
||||
return std::make_shared<Socket>(s, &raddr);
|
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}
|
||||
|
||||
std::shared_ptr<Socket> openudp(std::string rhost, int rport, const Address& laddr) {
|
||||
return openudp(Address(rhost, rport), laddr);
|
||||
}
|
||||
|
||||
std::shared_ptr<Socket> openudp(const Address& raddr, std::string lhost, int lport) {
|
||||
return openudp(raddr, Address(lhost, lport));
|
||||
}
|
||||
|
||||
std::shared_ptr<Socket> openudp(std::string rhost, int rport, std::string lhost, int lport) {
|
||||
return openudp(Address(rhost, rport), Address(lhost, lport));
|
||||
}
|
||||
}
|
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@ -1,281 +0,0 @@
|
||||
#pragma once
|
||||
#include <stdint.h>
|
||||
#include <mutex>
|
||||
#include <memory>
|
||||
#include <map>
|
||||
|
||||
#ifdef _WIN32
|
||||
#include <WinSock2.h>
|
||||
#include <WS2tcpip.h>
|
||||
#include <iphlpapi.h>
|
||||
#else
|
||||
#include <unistd.h>
|
||||
#include <strings.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <netinet/in.h>
|
||||
#include <netdb.h>
|
||||
#include <signal.h>
|
||||
#include <poll.h>
|
||||
#include <fcntl.h>
|
||||
#include <ifaddrs.h>
|
||||
#endif
|
||||
|
||||
namespace net {
|
||||
#ifdef _WIN32
|
||||
typedef SOCKET SockHandle_t;
|
||||
typedef int socklen_t;
|
||||
#else
|
||||
typedef int SockHandle_t;
|
||||
#endif
|
||||
typedef uint32_t IP_t;
|
||||
|
||||
class Socket;
|
||||
class Listener;
|
||||
|
||||
struct InterfaceInfo {
|
||||
IP_t address;
|
||||
IP_t netmask;
|
||||
IP_t broadcast;
|
||||
};
|
||||
|
||||
class Address {
|
||||
friend Socket;
|
||||
friend Listener;
|
||||
public:
|
||||
/**
|
||||
* Default constructor. Corresponds to 0.0.0.0:0.
|
||||
*/
|
||||
Address();
|
||||
|
||||
/**
|
||||
* Do not instantiate this class manually. Use the provided functions.
|
||||
* @param host Hostname or IP.
|
||||
* @param port TCP/UDP port.
|
||||
*/
|
||||
Address(const std::string& host, int port);
|
||||
|
||||
/**
|
||||
* Do not instantiate this class manually. Use the provided functions.
|
||||
* @param ip IP in host byte order.
|
||||
* @param port TCP/UDP port.
|
||||
*/
|
||||
Address(IP_t ip, int port);
|
||||
|
||||
/**
|
||||
* Get the IP address.
|
||||
* @return IP address in standard string format.
|
||||
*/
|
||||
std::string getIPStr();
|
||||
|
||||
/**
|
||||
* Get the IP address.
|
||||
* @return IP address in host byte order.
|
||||
*/
|
||||
IP_t getIP();
|
||||
|
||||
/**
|
||||
* Set the IP address.
|
||||
* @param ip IP address in host byte order.
|
||||
*/
|
||||
void setIP(IP_t ip);
|
||||
|
||||
/**
|
||||
* Get the TCP/UDP port.
|
||||
* @return TCP/UDP port number.
|
||||
*/
|
||||
int getPort();
|
||||
|
||||
/**
|
||||
* Set the TCP/UDP port.
|
||||
* @param port TCP/UDP port number.
|
||||
*/
|
||||
void setPort(int port);
|
||||
|
||||
struct sockaddr_in addr;
|
||||
};
|
||||
|
||||
enum {
|
||||
NO_TIMEOUT = -1,
|
||||
NONBLOCKING = 0
|
||||
};
|
||||
|
||||
enum SocketType {
|
||||
SOCKET_TYPE_TCP,
|
||||
SOCKET_TYPE_UDP
|
||||
};
|
||||
|
||||
class Socket {
|
||||
public:
|
||||
/**
|
||||
* Do not instantiate this class manually. Use the provided functions.
|
||||
*/
|
||||
Socket(SockHandle_t sock, const Address* raddr = NULL);
|
||||
~Socket();
|
||||
|
||||
/**
|
||||
* Close socket. The socket can no longer be used after this.
|
||||
*/
|
||||
void close();
|
||||
|
||||
/**
|
||||
* Check if the socket is open.
|
||||
* @return True if open, false if closed.
|
||||
*/
|
||||
bool isOpen();
|
||||
|
||||
/**
|
||||
* Get socket type. Either TCP or UDP.
|
||||
* @return Socket type.
|
||||
*/
|
||||
SocketType type();
|
||||
|
||||
/**
|
||||
* Send data on socket.
|
||||
* @param data Data to be sent.
|
||||
* @param len Number of bytes to be sent.
|
||||
* @param dest Destination address. NULL to use the default remote address.
|
||||
* @return Number of bytes sent.
|
||||
*/
|
||||
int send(const uint8_t* data, size_t len, const Address* dest = NULL);
|
||||
|
||||
/**
|
||||
* Send string on socket. Terminating NULL byte is not sent, include one in the string if you need it.
|
||||
* @param str String to be sent.
|
||||
* @param dest Destination address. NULL to use the default remote address.
|
||||
* @return Number of bytes sent.
|
||||
*/
|
||||
int sendstr(const std::string& str, const Address* dest = NULL);
|
||||
|
||||
/**
|
||||
* Receive data from socket.
|
||||
* @param data Buffer to read the data into.
|
||||
* @param maxLen Maximum number of bytes to read.
|
||||
* @param forceLen Read the maximum number of bytes even if it requires multiple receive operations.
|
||||
* @param timeout Timeout in milliseconds. Use NO_TIMEOUT or NONBLOCKING here if needed.
|
||||
* @param dest Destination address. If multiple packets, this will contain the address of the last one. NULL if not used.
|
||||
* @return Number of bytes read. 0 means timed out or closed. -1 means would block or error.
|
||||
*/
|
||||
int recv(uint8_t* data, size_t maxLen, bool forceLen = false, int timeout = NO_TIMEOUT, Address* dest = NULL);
|
||||
|
||||
/**
|
||||
* Receive line from socket.
|
||||
* @param str String to read the data into.
|
||||
* @param maxLen Maximum line length allowed, 0 for no limit.
|
||||
* @param timeout Timeout in milliseconds. Use NO_TIMEOUT or NONBLOCKING here if needed.
|
||||
* @param dest Destination address. If multiple packets, this will contain the address of the last one. NULL if not used.
|
||||
* @return Length of the returned string. 0 means timed out or closed. -1 means would block or error.
|
||||
*/
|
||||
int recvline(std::string& str, int maxLen = 0, int timeout = NO_TIMEOUT, Address* dest = NULL);
|
||||
|
||||
private:
|
||||
Address* raddr = NULL;
|
||||
SockHandle_t sock;
|
||||
bool open = true;
|
||||
|
||||
};
|
||||
|
||||
class Listener {
|
||||
public:
|
||||
/**
|
||||
* Do not instantiate this class manually. Use the provided functions.
|
||||
*/
|
||||
Listener(SockHandle_t sock);
|
||||
~Listener();
|
||||
|
||||
/**
|
||||
* Stop listening. The listener can no longer be used after this.
|
||||
*/
|
||||
void stop();
|
||||
|
||||
/**
|
||||
* CHeck if the listener is still listening.
|
||||
* @return True if listening, false if not.
|
||||
*/
|
||||
bool listening();
|
||||
|
||||
/**
|
||||
* Accept connection.
|
||||
* @param timeout Timeout in milliseconds. Use NO_TIMEOUT or NONBLOCKING here if needed.
|
||||
* @return Socket of the connection. NULL means timed out, would block or closed.
|
||||
*/
|
||||
std::shared_ptr<Socket> accept(Address* dest = NULL, int timeout = NO_TIMEOUT);
|
||||
|
||||
private:
|
||||
SockHandle_t sock;
|
||||
bool open = true;
|
||||
|
||||
};
|
||||
|
||||
/**
|
||||
* Get a list of the network interface.
|
||||
* @return List of network interfaces and their addresses.
|
||||
*/
|
||||
std::map<std::string, InterfaceInfo> listInterfaces();
|
||||
|
||||
/**
|
||||
* Create TCP listener.
|
||||
* @param addr Address to listen on.
|
||||
* @return Listener instance on success, Throws runtime_error otherwise.
|
||||
*/
|
||||
std::shared_ptr<Listener> listen(const Address& addr);
|
||||
|
||||
/**
|
||||
* Create TCP listener.
|
||||
* @param host Hostname or IP to listen on ("0.0.0.0" for Any).
|
||||
* @param port Port to listen on.
|
||||
* @return Listener instance on success, Throws runtime_error otherwise.
|
||||
*/
|
||||
std::shared_ptr<Listener> listen(std::string host, int port);
|
||||
|
||||
/**
|
||||
* Create TCP connection.
|
||||
* @param addr Remote address.
|
||||
* @return Socket instance on success, Throws runtime_error otherwise.
|
||||
*/
|
||||
std::shared_ptr<Socket> connect(const Address& addr);
|
||||
|
||||
/**
|
||||
* Create TCP connection.
|
||||
* @param host Remote hostname or IP address.
|
||||
* @param port Remote port.
|
||||
* @return Socket instance on success, Throws runtime_error otherwise.
|
||||
*/
|
||||
std::shared_ptr<Socket> connect(std::string host, int port);
|
||||
|
||||
/**
|
||||
* Create UDP socket.
|
||||
* @param raddr Remote address.
|
||||
* @param laddr Local address to bind the socket to.
|
||||
* @return Socket instance on success, Throws runtime_error otherwise.
|
||||
*/
|
||||
std::shared_ptr<Socket> openudp(const Address& raddr, const Address& laddr);
|
||||
|
||||
/**
|
||||
* Create UDP socket.
|
||||
* @param rhost Remote hostname or IP address.
|
||||
* @param rport Remote port.
|
||||
* @param laddr Local address to bind the socket to.
|
||||
* @return Socket instance on success, Throws runtime_error otherwise.
|
||||
*/
|
||||
std::shared_ptr<Socket> openudp(std::string rhost, int rport, const Address& laddr);
|
||||
|
||||
/**
|
||||
* Create UDP socket.
|
||||
* @param raddr Remote address.
|
||||
* @param lhost Local hostname or IP used to bind the socket (optional, "0.0.0.0" for Any).
|
||||
* @param lpost Local port used to bind the socket to (optional, 0 to allocate automatically).
|
||||
* @return Socket instance on success, Throws runtime_error otherwise.
|
||||
*/
|
||||
std::shared_ptr<Socket> openudp(const Address& raddr, std::string lhost = "0.0.0.0", int lport = 0);
|
||||
|
||||
/**
|
||||
* Create UDP socket.
|
||||
* @param rhost Remote hostname or IP address.
|
||||
* @param rport Remote port.
|
||||
* @param lhost Local hostname or IP used to bind the socket (optional, "0.0.0.0" for Any).
|
||||
* @param lpost Local port used to bind the socket to (optional, 0 to allocate automatically).
|
||||
* @return Socket instance on success, Throws runtime_error otherwise.
|
||||
*/
|
||||
std::shared_ptr<Socket> openudp(std::string rhost, int rport, std::string lhost = "0.0.0.0", int lport = 0);
|
||||
}
|
||||
Reference in New Issue
Block a user