1 //===-- SocketAddress.cpp ---------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Note: This file is used on Darwin by debugserver, so it needs to remain as
11 // self contained as possible, and devoid of references to LLVM unless
12 // there is compelling reason.
14 //===----------------------------------------------------------------------===//
17 #define _WINSOCK_DEPRECATED_NO_WARNINGS
20 #include "lldb/Host/SocketAddress.h"
25 #include <arpa/inet.h>
31 #include "lldb/Host/PosixApi.h"
33 // WindowsXP needs an inet_ntop implementation
36 #ifndef INET6_ADDRSTRLEN // might not be defined in older Windows SDKs
37 #define INET6_ADDRSTRLEN 46
40 // TODO: implement shortened form "::" for runs of zeros
41 const char *inet_ntop(int af, const void *src, char *dst, socklen_t size) {
49 const char *formatted = inet_ntoa(*static_cast<const in_addr *>(src));
50 if (formatted && strlen(formatted) < static_cast<size_t>(size)) {
51 return ::strcpy(dst, formatted);
56 char tmp[INET6_ADDRSTRLEN] = {0};
57 const uint16_t *src16 = static_cast<const uint16_t *>(src);
58 int full_size = ::snprintf(
59 tmp, sizeof(tmp), "%x:%x:%x:%x:%x:%x:%x:%x", ntohs(src16[0]),
60 ntohs(src16[1]), ntohs(src16[2]), ntohs(src16[3]), ntohs(src16[4]),
61 ntohs(src16[5]), ntohs(src16[6]), ntohs(src16[7]));
62 if (full_size < static_cast<int>(size)) {
63 return ::strcpy(dst, tmp);
73 using namespace lldb_private;
75 //----------------------------------------------------------------------
76 // SocketAddress constructor
77 //----------------------------------------------------------------------
78 SocketAddress::SocketAddress() { Clear(); }
80 SocketAddress::SocketAddress(const struct sockaddr &s) { m_socket_addr.sa = s; }
82 SocketAddress::SocketAddress(const struct sockaddr_in &s) {
83 m_socket_addr.sa_ipv4 = s;
86 SocketAddress::SocketAddress(const struct sockaddr_in6 &s) {
87 m_socket_addr.sa_ipv6 = s;
90 SocketAddress::SocketAddress(const struct sockaddr_storage &s) {
91 m_socket_addr.sa_storage = s;
94 SocketAddress::SocketAddress(const struct addrinfo *addr_info) {
98 //----------------------------------------------------------------------
99 // SocketAddress copy constructor
100 //----------------------------------------------------------------------
101 SocketAddress::SocketAddress(const SocketAddress &rhs)
102 : m_socket_addr(rhs.m_socket_addr) {}
104 //----------------------------------------------------------------------
106 //----------------------------------------------------------------------
107 SocketAddress::~SocketAddress() {}
109 void SocketAddress::Clear() {
110 memset(&m_socket_addr, 0, sizeof(m_socket_addr));
113 bool SocketAddress::IsValid() const { return GetLength() != 0; }
115 static socklen_t GetFamilyLength(sa_family_t family) {
118 return sizeof(struct sockaddr_in);
120 return sizeof(struct sockaddr_in6);
122 assert(0 && "Unsupported address family");
126 socklen_t SocketAddress::GetLength() const {
127 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__)
128 return m_socket_addr.sa.sa_len;
130 return GetFamilyLength(GetFamily());
134 socklen_t SocketAddress::GetMaxLength() { return sizeof(sockaddr_t); }
136 sa_family_t SocketAddress::GetFamily() const {
137 return m_socket_addr.sa.sa_family;
140 void SocketAddress::SetFamily(sa_family_t family) {
141 m_socket_addr.sa.sa_family = family;
142 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__)
143 m_socket_addr.sa.sa_len = GetFamilyLength(family);
147 std::string SocketAddress::GetIPAddress() const {
148 char str[INET6_ADDRSTRLEN] = {0};
149 switch (GetFamily()) {
151 if (inet_ntop(GetFamily(), &m_socket_addr.sa_ipv4.sin_addr, str,
156 if (inet_ntop(GetFamily(), &m_socket_addr.sa_ipv6.sin6_addr, str,
164 uint16_t SocketAddress::GetPort() const {
165 switch (GetFamily()) {
167 return ntohs(m_socket_addr.sa_ipv4.sin_port);
169 return ntohs(m_socket_addr.sa_ipv6.sin6_port);
174 bool SocketAddress::SetPort(uint16_t port) {
175 switch (GetFamily()) {
177 m_socket_addr.sa_ipv4.sin_port = htons(port);
181 m_socket_addr.sa_ipv6.sin6_port = htons(port);
187 //----------------------------------------------------------------------
188 // SocketAddress assignment operator
189 //----------------------------------------------------------------------
190 const SocketAddress &SocketAddress::operator=(const SocketAddress &rhs) {
192 m_socket_addr = rhs.m_socket_addr;
196 const SocketAddress &SocketAddress::
197 operator=(const struct addrinfo *addr_info) {
199 if (addr_info && addr_info->ai_addr && addr_info->ai_addrlen > 0 &&
200 size_t(addr_info->ai_addrlen) <= sizeof m_socket_addr) {
201 ::memcpy(&m_socket_addr, addr_info->ai_addr, addr_info->ai_addrlen);
206 const SocketAddress &SocketAddress::operator=(const struct sockaddr &s) {
207 m_socket_addr.sa = s;
211 const SocketAddress &SocketAddress::operator=(const struct sockaddr_in &s) {
212 m_socket_addr.sa_ipv4 = s;
216 const SocketAddress &SocketAddress::operator=(const struct sockaddr_in6 &s) {
217 m_socket_addr.sa_ipv6 = s;
221 const SocketAddress &SocketAddress::
222 operator=(const struct sockaddr_storage &s) {
223 m_socket_addr.sa_storage = s;
227 bool SocketAddress::getaddrinfo(const char *host, const char *service,
228 int ai_family, int ai_socktype, int ai_protocol,
232 auto addresses = GetAddressInfo(host, service, ai_family, ai_socktype,
233 ai_protocol, ai_flags);
234 if (!addresses.empty())
235 *this = addresses[0];
239 std::vector<SocketAddress>
240 SocketAddress::GetAddressInfo(const char *hostname, const char *servname,
241 int ai_family, int ai_socktype, int ai_protocol,
243 std::vector<SocketAddress> addr_list;
245 struct addrinfo hints;
246 memset(&hints, 0, sizeof(hints));
247 hints.ai_family = ai_family;
248 hints.ai_socktype = ai_socktype;
249 hints.ai_protocol = ai_protocol;
250 hints.ai_flags = ai_flags;
252 struct addrinfo *service_info_list = NULL;
253 int err = ::getaddrinfo(hostname, servname, &hints, &service_info_list);
254 if (err == 0 && service_info_list) {
255 for (struct addrinfo *service_ptr = service_info_list; service_ptr != NULL;
256 service_ptr = service_ptr->ai_next) {
257 addr_list.emplace_back(SocketAddress(service_ptr));
261 if (service_info_list)
262 ::freeaddrinfo(service_info_list);
266 bool SocketAddress::SetToLocalhost(sa_family_t family, uint16_t port) {
271 m_socket_addr.sa_ipv4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
279 m_socket_addr.sa_ipv6.sin6_addr = in6addr_loopback;
288 bool SocketAddress::SetToAnyAddress(sa_family_t family, uint16_t port) {
293 m_socket_addr.sa_ipv4.sin_addr.s_addr = htonl(INADDR_ANY);
301 m_socket_addr.sa_ipv6.sin6_addr = in6addr_any;
310 bool SocketAddress::IsAnyAddr() const {
311 return (GetFamily() == AF_INET)
312 ? m_socket_addr.sa_ipv4.sin_addr.s_addr == htonl(INADDR_ANY)
313 : 0 == memcmp(&m_socket_addr.sa_ipv6.sin6_addr, &in6addr_any, 16);
316 bool SocketAddress::IsLocalhost() const {
317 return (GetFamily() == AF_INET)
318 ? m_socket_addr.sa_ipv4.sin_addr.s_addr == htonl(INADDR_LOOPBACK)
319 : 0 == memcmp(&m_socket_addr.sa_ipv6.sin6_addr, &in6addr_loopback,
323 bool SocketAddress::operator==(const SocketAddress &rhs) const {
324 if (GetFamily() != rhs.GetFamily())
326 if (GetLength() != rhs.GetLength())
328 switch (GetFamily()) {
330 return m_socket_addr.sa_ipv4.sin_addr.s_addr ==
331 rhs.m_socket_addr.sa_ipv4.sin_addr.s_addr;
333 return 0 == memcmp(&m_socket_addr.sa_ipv6.sin6_addr,
334 &rhs.m_socket_addr.sa_ipv6.sin6_addr, 16);
339 bool SocketAddress::operator!=(const SocketAddress &rhs) const {
340 return !(*this == rhs);