1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <net/if.h> 18 19 #include <errno.h> 20 #include <ifaddrs.h> 21 22 #include <gtest/gtest.h> 23 24 TEST(net_if, if_nametoindex_if_indextoname) { 25 unsigned index; 26 index = if_nametoindex("lo"); 27 ASSERT_NE(index, 0U); 28 29 char buf[IF_NAMESIZE] = {}; 30 char* name = if_indextoname(index, buf); 31 ASSERT_STREQ("lo", name); 32 } 33 34 TEST(net_if, if_nametoindex_fail) { 35 unsigned index = if_nametoindex("this-interface-does-not-exist"); 36 ASSERT_EQ(0U, index); 37 } 38 39 TEST(net_if, if_nameindex) { 40 struct if_nameindex* list = if_nameindex(); 41 ASSERT_TRUE(list != nullptr); 42 43 ASSERT_TRUE(list->if_index != 0); 44 45 std::set<std::string> if_nameindex_names; 46 char buf[IF_NAMESIZE] = {}; 47 bool saw_lo = false; 48 for (struct if_nameindex* it = list; it->if_index != 0; ++it) { 49 fprintf(stderr, "\t%d\t%s\n", it->if_index, it->if_name); 50 if_nameindex_names.insert(it->if_name); 51 EXPECT_EQ(it->if_index, if_nametoindex(it->if_name)); 52 EXPECT_STREQ(it->if_name, if_indextoname(it->if_index, buf)); 53 if (strcmp(it->if_name, "lo") == 0) saw_lo = true; 54 } 55 ASSERT_TRUE(saw_lo); 56 if_freenameindex(list); 57 58 std::set<std::string> getifaddrs_names; 59 ifaddrs* ifa; 60 ASSERT_EQ(0, getifaddrs(&ifa)); 61 for (ifaddrs* it = ifa; it != nullptr; it = it->ifa_next) { 62 getifaddrs_names.insert(it->ifa_name); 63 } 64 freeifaddrs(ifa); 65 66 ASSERT_EQ(getifaddrs_names, if_nameindex_names); 67 } 68 69 TEST(net_if, if_freenameindex_nullptr) { 70 #if defined(__BIONIC__) 71 if_freenameindex(nullptr); 72 #endif 73 } 74
