Add NetworkAdaptor to dart:io.

runtime/bin/socket_linux.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_LINUX)
 
 #include <errno.h>  // NOLINT
 #include <stdio.h>  // NOLINT
 #include <stdlib.h>  // NOLINT
 #include <string.h>  // NOLINT
 #include <sys/stat.h>  // NOLINT
 #include <unistd.h>  // NOLINT
 #include <netinet/tcp.h>  // NOLINT
+#include <ifaddrs.h>  // NOLINT
 
 #include "bin/fdutils.h"
 #include "bin/file.h"
 #include "bin/log.h"
 #include "bin/socket.h"
 
 
 namespace dart {
 namespace bin {
 
-SocketAddress::SocketAddress(struct addrinfo* addrinfo) {
+SocketAddress::SocketAddress(struct sockaddr* sockaddr) {
   ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN);
-  RawAddr* raw = reinterpret_cast<RawAddr*>(addrinfo->ai_addr);
-  const char* result = inet_ntop(addrinfo->ai_family,
+  RawAddr* raw = reinterpret_cast<RawAddr*>(sockaddr);
+  const char* result = inet_ntop(sockaddr->sa_family,
                                  &raw->in.sin_addr,
                                  as_string_,
                                  INET6_ADDRSTRLEN);
   if (result == NULL) as_string_[0] = 0;
   memmove(reinterpret_cast<void *>(&addr_),
-          addrinfo->ai_addr,
-          addrinfo->ai_addrlen);
+          sockaddr,
+          GetAddrLength(raw));
 }
 
 
 bool Socket::Initialize() {
   // Nothing to do on Linux.
   return true;
 }
 
 
 intptr_t Socket::Create(RawAddr addr) {
   intptr_t fd;
 
   fd = TEMP_FAILURE_RETRY(socket(addr.ss.ss_family, SOCK_STREAM, 0));
   if (fd < 0) {
     Log::PrintErr("Error Create: %s\n", strerror(errno));
     return -1;
   }
 
   FDUtils::SetCloseOnExec(fd);
   return fd;
 }
 
 
 intptr_t Socket::Connect(intptr_t fd, RawAddr addr, const intptr_t port) {
   SocketAddress::SetAddrPort(&addr, port);
   intptr_t result = TEMP_FAILURE_RETRY(
       connect(fd,
               &addr.addr,
-              SocketAddress::GetAddrLength(addr)));
+              SocketAddress::GetAddrLength(&addr)));
   if (result == 0 || errno == EINPROGRESS) {
     return fd;
   }
   VOID_TEMP_FAILURE_RETRY(close(fd));
   return -1;
 }
 
 
 intptr_t Socket::CreateConnect(RawAddr addr, const intptr_t port) {
   intptr_t fd = Socket::Create(addr);
@@ skipping 102 matching lines @@
   if (S_ISREG(buf.st_mode)) return File::kFile;
   return File::kOther;
 }
 
 
 intptr_t Socket::GetStdioHandle(int num) {
   return static_cast<intptr_t>(num);
 }
 
 
-SocketAddresses* Socket::LookupAddress(const char* host,
-                                       int type,
-                                       OSError** os_error) {
+AddressList<SocketAddress>* Socket::LookupAddress(const char* host,
+                                                  int type,
+                                                  OSError** os_error) {
   // Perform a name lookup for a host name.
   struct addrinfo hints;
   memset(&hints, 0, sizeof(hints));
   hints.ai_family = SocketAddress::FromType(type);
   hints.ai_socktype = SOCK_STREAM;
   hints.ai_flags = 0;
   hints.ai_protocol = IPPROTO_TCP;
   struct addrinfo* info = NULL;
   int status = getaddrinfo(host, 0, &hints, &info);
   if (status != 0) {
     ASSERT(*os_error == NULL);
     *os_error = new OSError(status,
                             gai_strerror(status),
                             OSError::kGetAddressInfo);
     return NULL;
   }
   intptr_t count = 0;
   for (struct addrinfo* c = info; c != NULL; c = c->ai_next) {
     if (c->ai_family == AF_INET || c->ai_family == AF_INET6) count++;
   }
-  SocketAddresses* addresses = new SocketAddresses(count);
-  intptr_t i = 0;
+  int i = 0;
+  AddressList<SocketAddress>* addresses = new AddressList<SocketAddress>(count);
   for (struct addrinfo* c = info; c != NULL; c = c->ai_next) {
     if (c->ai_family == AF_INET || c->ai_family == AF_INET6) {
-      addresses->SetAt(i, new SocketAddress(c));
+      addresses->SetAt(i, new SocketAddress(c->ai_addr));
       i++;
     }
   }
   freeaddrinfo(info);
   return addresses;
 }
 
 
+static bool ShouldIncludeIfaAddrs(struct ifaddrs* ifa, int lookup_family) {
+  int family = ifa->ifa_addr->sa_family;
+  if (lookup_family == family) return true;
+  if (lookup_family == AF_UNSPEC &&
+      (family == AF_INET || family == AF_INET6)) {
+    return true;
+  }
+  return false;
+}
+
+
+AddressList<InterfaceSocketAddress>* Socket::ListInterfaces(
+    int type,
+    OSError** os_error) {
+  struct ifaddrs* ifaddr;
+
+  int status = getifaddrs(&ifaddr);
+  if (status != 0) {
+    ASSERT(*os_error == NULL);
+    *os_error = new OSError(status,
+                            gai_strerror(status),
+                            OSError::kGetAddressInfo);
+    return NULL;
+  }
+
+  int lookup_family = SocketAddress::FromType(type);
+
+  intptr_t count = 0;
+  for (struct ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
+    if (ShouldIncludeIfaAddrs(ifa, lookup_family)) count++;
+  }
+
+  AddressList<InterfaceSocketAddress>* addresses =
+      new AddressList<InterfaceSocketAddress>(count);
+  int i = 0;
+  for (struct ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
+    if (ShouldIncludeIfaAddrs(ifa, lookup_family)) {
+      addresses->SetAt(i, new InterfaceSocketAddress(
+          ifa->ifa_addr, strdup(ifa->ifa_name)));
+      i++;
+    }
+  }
+  freeifaddrs(ifaddr);
+  return addresses;
+}
+
+
 intptr_t ServerSocket::CreateBindListen(RawAddr addr,
                                         intptr_t port,
                                         intptr_t backlog,
                                         bool v6_only) {
   intptr_t fd;
 
   fd = TEMP_FAILURE_RETRY(socket(addr.ss.ss_family, SOCK_STREAM, 0));
   if (fd < 0) return -1;
 
   FDUtils::SetCloseOnExec(fd);
 
   int optval = 1;
   TEMP_FAILURE_RETRY(
       setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)));
 
   if (addr.ss.ss_family == AF_INET6) {
     optval = v6_only ? 1 : 0;
     TEMP_FAILURE_RETRY(
         setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &optval, sizeof(optval)));
   }
 
   SocketAddress::SetAddrPort(&addr, port);
   if (TEMP_FAILURE_RETRY(
           bind(fd,
                &addr.addr,
-               SocketAddress::GetAddrLength(addr))) < 0) {
+               SocketAddress::GetAddrLength(&addr))) < 0) {
     TEMP_FAILURE_RETRY(close(fd));
     return -1;
   }
 
   if (TEMP_FAILURE_RETRY(listen(fd, backlog > 0 ? backlog : SOMAXCONN)) != 0) {
     TEMP_FAILURE_RETRY(close(fd));
     return -1;
   }
 
   Socket::SetNonBlocking(fd);
@@ skipping 59 matching lines @@
                                        SOL_TCP,
                                        TCP_NODELAY,
                                        reinterpret_cast<char *>(&on),
                                        sizeof(on))) == 0;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)