import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

netwerk/base/NetworkInfoServiceCocoa.cpp

@@ -0,0 +1,104 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <net/if.h>
+#include <netdb.h>
+
+#include "mozilla/DebugOnly.h"
+#include "mozilla/ScopeExit.h"
+
+#include "NetworkInfoServiceImpl.h"
+
+namespace mozilla {
+namespace net {
+
+static nsresult
+ListInterfaceAddresses(int aFd, const char* aIface, AddrMapType& aAddrMap);
+
+nsresult
+DoListAddresses(AddrMapType& aAddrMap)
+{
+    int fd = socket(AF_INET, SOCK_DGRAM, 0);
+    if (fd < 0) {
+        return NS_ERROR_FAILURE;
+    }
+
+    auto autoCloseSocket = MakeScopeExit([&] {
+      close(fd);
+    });
+
+    struct ifconf ifconf;
+    /* 16k of space should be enough to list all interfaces.  Worst case, if it's
+     * not then we will error out and fail to list addresses.  This should only
+     * happen on pathological machines with way too many interfaces.
+     */
+    char buf[16384];
+
+    ifconf.ifc_len = sizeof(buf);
+    ifconf.ifc_buf = buf;
+    if (ioctl(fd, SIOCGIFCONF, &ifconf) != 0) {
+        return NS_ERROR_FAILURE;
+    }
+
+    struct ifreq* ifreq = ifconf.ifc_req;
+    int i = 0;
+    while (i < ifconf.ifc_len) {
+        size_t len = IFNAMSIZ + ifreq->ifr_addr.sa_len;
+
+        DebugOnly<nsresult> rv =
+          ListInterfaceAddresses(fd, ifreq->ifr_name, aAddrMap);
+        NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "ListInterfaceAddresses failed");
+
+        ifreq = (struct ifreq*) ((char*)ifreq + len);
+        i += len;
+    }
+
+    autoCloseSocket.release();
+    return NS_OK;
+}
+
+static nsresult
+ListInterfaceAddresses(int aFd, const char* aInterface, AddrMapType& aAddrMap)
+{
+    struct ifreq ifreq;
+    memset(&ifreq, 0, sizeof(struct ifreq));
+    strncpy(ifreq.ifr_name, aInterface, IFNAMSIZ - 1);
+    if (ioctl(aFd, SIOCGIFADDR, &ifreq) != 0) {
+        return NS_ERROR_FAILURE;
+    }
+
+    char host[128];
+    int family;
+    switch(family=ifreq.ifr_addr.sa_family) {
+      case AF_INET:
+      case AF_INET6:
+        getnameinfo(&ifreq.ifr_addr, sizeof(ifreq.ifr_addr), host, sizeof(host), 0, 0, NI_NUMERICHOST);
+        break;
+      case AF_UNSPEC:
+        return NS_OK;
+      default:
+        // Unknown family.
+        return NS_OK;
+    }
+
+    nsCString ifaceStr;
+    ifaceStr.AssignASCII(aInterface);
+
+    nsCString addrStr;
+    addrStr.AssignASCII(host);
+
+    aAddrMap.Put(ifaceStr, addrStr);
+
+    return NS_OK;
+}
+
+} // namespace net
+} // namespace mozilla