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
TEST(net_if,if_nametoindex_if_indextoname)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
TEST(net_if,if_nametoindex_fail)34 TEST(net_if, if_nametoindex_fail) {
35 unsigned index = if_nametoindex("this-interface-does-not-exist");
36 ASSERT_EQ(0U, index);
37 }
38
TEST(net_if,if_nameindex)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
TEST(net_if,if_freenameindex_nullptr)69 TEST(net_if, if_freenameindex_nullptr) {
70 #if defined(__BIONIC__)
71 if_freenameindex(nullptr);
72 #endif
73 }
74