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* Copyright (C) 2014 The Android Open Source Project
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#include <gtest/gtest.h>
#include <arpa/inet.h>
TEST(arpa_inet, inet_addr) {
ASSERT_EQ((htonl)(0x7f000001), inet_addr(""));
TEST(arpa_inet, inet_aton) {
in_addr a;
// a.b.c.d
a.s_addr = 0;
ASSERT_EQ(1, inet_aton("", &a));
ASSERT_EQ((htonl)(0x7f010203), a.s_addr);
// a.b.c
a.s_addr = 0;
ASSERT_EQ(1, inet_aton("127.1.2", &a));
ASSERT_EQ((htonl)(0x7f010002), a.s_addr);
// a.b
a.s_addr = 0;
ASSERT_EQ(1, inet_aton("127.1", &a));
ASSERT_EQ((htonl)(0x7f000001), a.s_addr);
// a
a.s_addr = 0;
ASSERT_EQ(1, inet_aton("0x7f000001", &a));
ASSERT_EQ((htonl)(0x7f000001), a.s_addr);
// Hex (0x) and mixed-case hex digits.
a.s_addr = 0;
ASSERT_EQ(1, inet_aton("0xFf.0.0.1", &a));
ASSERT_EQ((htonl)(0xff000001), a.s_addr);
// Hex (0X) and mixed-case hex digits.
a.s_addr = 0;
ASSERT_EQ(1, inet_aton("0XfF.0.0.1", &a));
ASSERT_EQ((htonl)(0xff000001), a.s_addr);
// Octal.
a.s_addr = 0;
ASSERT_EQ(1, inet_aton("0177.0.0.1", &a));
ASSERT_EQ((htonl)(0x7f000001), a.s_addr);
a.s_addr = 0;
ASSERT_EQ(1, inet_aton("036", &a));
ASSERT_EQ((htonl)(036U), a.s_addr);
TEST(arpa_inet, inet_aton_nullptr) {
ASSERT_EQ(0, inet_aton("", nullptr));
ASSERT_EQ(1, inet_aton("", nullptr));
TEST(arpa_inet, inet_aton_invalid) {
ASSERT_EQ(0, inet_aton("", nullptr)); // Empty.
ASSERT_EQ(0, inet_aton("x", nullptr)); // Leading junk.
ASSERT_EQ(0, inet_aton("", nullptr)); // Trailing junk.
ASSERT_EQ(0, inet_aton("", nullptr)); // Invalid octal.
ASSERT_EQ(0, inet_aton("0xg.0.0.1", nullptr)); // Invalid hex.
ASSERT_EQ(0, inet_aton("", nullptr)); // Too many dots.
ASSERT_EQ(0, inet_aton("", nullptr)); // Trailing dot.
// Out of range a.b.c.d form.
ASSERT_EQ(0, inet_aton("999.0.0.1", nullptr));
ASSERT_EQ(0, inet_aton("0.999.0.1", nullptr));
ASSERT_EQ(0, inet_aton("0.0.999.1", nullptr));
ASSERT_EQ(0, inet_aton("", nullptr));
// Out of range a.b.c form.
ASSERT_EQ(0, inet_aton("256.0.0", nullptr));
ASSERT_EQ(0, inet_aton("0.256.0", nullptr));
ASSERT_EQ(0, inet_aton("0.0.0x10000", nullptr));
// Out of range a.b form.
ASSERT_EQ(0, inet_aton("256.0", nullptr));
ASSERT_EQ(0, inet_aton("0.0x1000000", nullptr));
// Out of range a form.
ASSERT_EQ(0, inet_aton("0x100000000", nullptr));
// 64-bit overflow.
ASSERT_EQ(0, inet_aton("0x10000000000000000", nullptr));
// Out of range octal.
ASSERT_EQ(0, inet_aton("0400.0.0.1", nullptr));
TEST(arpa_inet, inet_lnaof) {
in_addr a = { htonl(0x12345678) };
ASSERT_EQ(0x00345678U, inet_lnaof(a));
TEST(arpa_inet, inet_makeaddr) {
in_addr a = inet_makeaddr(0x12U, 0x345678);
ASSERT_EQ((htonl)(0x12345678), a.s_addr);
TEST(arpa_inet, inet_netof) {
in_addr a = { htonl(0x12345678) };
ASSERT_EQ(0x12U, inet_netof(a));
TEST(arpa_inet, inet_network) {
ASSERT_EQ(0x7f000001U, inet_network(""));
ASSERT_EQ(0x7fU, inet_network("0x7f"));
ASSERT_EQ(~0U, inet_network(""));
TEST(arpa_inet, inet_ntoa) {
in_addr a = { (htonl)(0x7f000001) };
ASSERT_STREQ("", inet_ntoa(a));
TEST(arpa_inet, inet_pton__inet_ntop) {
sockaddr_storage ss;
ASSERT_EQ(1, inet_pton(AF_INET, "", &ss));
ASSERT_STREQ("", inet_ntop(AF_INET, &ss, s, INET_ADDRSTRLEN));
TEST(arpa_inet, inet_ntop_overflow) {
// OpenBSD's inet_ntop had a bug where passing a 'size' larger than INET_ADDRSTRLEN
// for AF_INET or INET6_ADDRSTRLEN for AF_INET6 would cause inet_ntop to overflow an
// internal buffer.
sockaddr_storage ss4;
ASSERT_EQ(1, inet_pton(AF_INET, "", &ss4));
sockaddr_storage ss6;
ASSERT_EQ(1, inet_pton(AF_INET6, "::1", &ss6));
ASSERT_STREQ("", inet_ntop(AF_INET, &ss4, s4, INET_ADDRSTRLEN));
ASSERT_STREQ("", inet_ntop(AF_INET, &ss4, s4, 2*INET_ADDRSTRLEN));
ASSERT_STREQ("::1", inet_ntop(AF_INET6, &ss6, s6, INET_ADDRSTRLEN));
ASSERT_STREQ("::1", inet_ntop(AF_INET6, &ss6, s6, INET6_ADDRSTRLEN));
ASSERT_STREQ("::1", inet_ntop(AF_INET6, &ss6, s6, 2*INET6_ADDRSTRLEN));