From 5da14042f70711ea5cf66e034699730335462f66 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 5 May 2024 14:08:03 +0200 Subject: Merging upstream version 1.45.3+dfsg. Signed-off-by: Daniel Baumann --- .../lib/c-ares-1.19.1/test/ares-test-internal.cc | 632 +++++++++++++++++++++ 1 file changed, 632 insertions(+) create mode 100644 src/fluent-bit/lib/c-ares-1.19.1/test/ares-test-internal.cc (limited to 'src/fluent-bit/lib/c-ares-1.19.1/test/ares-test-internal.cc') diff --git a/src/fluent-bit/lib/c-ares-1.19.1/test/ares-test-internal.cc b/src/fluent-bit/lib/c-ares-1.19.1/test/ares-test-internal.cc new file mode 100644 index 000000000..40cc82b86 --- /dev/null +++ b/src/fluent-bit/lib/c-ares-1.19.1/test/ares-test-internal.cc @@ -0,0 +1,632 @@ +#include "ares-test.h" +#include "dns-proto.h" + +#include + +#ifdef HAVE_UNISTD_H +#include +#endif +#include + +extern "C" { +// Remove command-line defines of package variables for the test project... +#undef PACKAGE_NAME +#undef PACKAGE_BUGREPORT +#undef PACKAGE_STRING +#undef PACKAGE_TARNAME +// ... so we can include the library's config without symbol redefinitions. +#include "ares_setup.h" +#include "ares_nowarn.h" +#include "ares_inet_net_pton.h" +#include "ares_data.h" +#include "ares_strsplit.h" +#include "ares_private.h" +#include "bitncmp.h" + +#ifdef HAVE_ARPA_INET_H +#include +#endif +#ifdef HAVE_SYS_UIO_H +# include +#endif +} + +#include +#include + +namespace ares { +namespace test { + +#ifndef CARES_SYMBOL_HIDING +void CheckPtoN4(int size, unsigned int value, const char *input) { + struct in_addr a4; + a4.s_addr = 0; + uint32_t expected = htonl(value); + EXPECT_EQ(size, ares_inet_net_pton(AF_INET, input, &a4, sizeof(a4))) + << " for input " << input; + EXPECT_EQ(expected, a4.s_addr) << " for input " << input; +} +#endif + +#ifndef CARES_SYMBOL_HIDING +TEST_F(LibraryTest, Strsplit) { + using std::vector; + using std::string; + size_t n; + struct { + vector inputs; + vector delimiters; + vector> expected; + } data = { + { + "", + " ", + " ", + "example.com, example.co", + " a, b, A,c, d, e,,,D,e,e,E", + }, + { ", ", ", ", ", ", ", ", ", " }, + { + {}, {}, {}, + { "example.com", "example.co" }, + { "a", "b", "c", "d", "e" }, + }, + }; + for(size_t i = 0; i < data.inputs.size(); i++) { + char **out = ares__strsplit(data.inputs.at(i).c_str(), + data.delimiters.at(i).c_str(), &n); + if(data.expected.at(i).size() == 0) { + EXPECT_EQ(out, nullptr); + } + else { + EXPECT_EQ(n, data.expected.at(i).size()); + for(size_t j = 0; j < n && j < data.expected.at(i).size(); j++) { + EXPECT_STREQ(out[j], data.expected.at(i).at(j).c_str()); + } + } + ares__strsplit_free(out, n); + } +} +#endif + +TEST_F(LibraryTest, InetPtoN) { + struct in_addr a4; + struct in6_addr a6; + +#ifndef CARES_SYMBOL_HIDING + uint32_t expected; + + CheckPtoN4(4 * 8, 0x01020304, "1.2.3.4"); + CheckPtoN4(4 * 8, 0x81010101, "129.1.1.1"); + CheckPtoN4(4 * 8, 0xC0010101, "192.1.1.1"); + CheckPtoN4(4 * 8, 0xE0010101, "224.1.1.1"); + CheckPtoN4(4 * 8, 0xE1010101, "225.1.1.1"); + CheckPtoN4(4, 0xE0000000, "224"); + CheckPtoN4(4 * 8, 0xFD000000, "253"); + CheckPtoN4(4 * 8, 0xF0010101, "240.1.1.1"); + CheckPtoN4(4 * 8, 0x02030405, "02.3.4.5"); + CheckPtoN4(3 * 8, 0x01020304, "1.2.3.4/24"); + CheckPtoN4(3 * 8, 0x01020300, "1.2.3/24"); + CheckPtoN4(2 * 8, 0xa0000000, "0xa"); + CheckPtoN4(0, 0x02030405, "2.3.4.5/000"); + CheckPtoN4(1 * 8, 0x01020000, "1.2/8"); + CheckPtoN4(2 * 8, 0x01020000, "0x0102/16"); + CheckPtoN4(4 * 8, 0x02030405, "02.3.4.5"); + + EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "::", &a6, sizeof(a6))); + EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "::1", &a6, sizeof(a6))); + EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "1234:5678::", &a6, sizeof(a6))); + EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "12:34::ff", &a6, sizeof(a6))); + EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.4", &a6, sizeof(a6))); + EXPECT_EQ(23, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.4/23", &a6, sizeof(a6))); + EXPECT_EQ(3 * 8, ares_inet_net_pton(AF_INET6, "12:34::ff/24", &a6, sizeof(a6))); + EXPECT_EQ(0, ares_inet_net_pton(AF_INET6, "12:34::ff/0", &a6, sizeof(a6))); + EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "12:34::ffff:0.2", &a6, sizeof(a6))); + EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234", &a6, sizeof(a6))); + EXPECT_EQ(2, ares_inet_net_pton(AF_INET6, "0::00:00:00/2", &a6, sizeof(a6))); + + // Various malformed versions + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, " ", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x ", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "x0", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0xXYZZY", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "xyzzy", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET+AF_INET6, "1.2.3.4", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "257.2.3.4", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "002.3.4.x", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "00.3.4.x", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.x", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5.6", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5.6/12", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4:5", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5/120", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5/1x", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5/x", &a4, sizeof(a4))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/240", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/02", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/2y", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/y", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ":x", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ":", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ": :1234", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "::12345", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234::2345:3456::0011", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234:", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234::", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1.2.3.4", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ":1234:1234:1234:1234:1234:1234:1234:1234", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ":1234:1234:1234:1234:1234:1234:1234:1234:", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234:5678", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234:5678:5678", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234:5678:5678:5678", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:257.2.3.4", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.4.5.6", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.4.5", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.z", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3001.4", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3..4", &a6, sizeof(a6))); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.", &a6, sizeof(a6))); + + // Hex constants are allowed. + EXPECT_EQ(4 * 8, ares_inet_net_pton(AF_INET, "0x01020304", &a4, sizeof(a4))); + expected = htonl(0x01020304); + EXPECT_EQ(expected, a4.s_addr); + EXPECT_EQ(4 * 8, ares_inet_net_pton(AF_INET, "0x0a0b0c0d", &a4, sizeof(a4))); + expected = htonl(0x0a0b0c0d); + EXPECT_EQ(expected, a4.s_addr); + EXPECT_EQ(4 * 8, ares_inet_net_pton(AF_INET, "0x0A0B0C0D", &a4, sizeof(a4))); + expected = htonl(0x0a0b0c0d); + EXPECT_EQ(expected, a4.s_addr); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x0xyz", &a4, sizeof(a4))); + EXPECT_EQ(4 * 8, ares_inet_net_pton(AF_INET, "0x1122334", &a4, sizeof(a4))); + expected = htonl(0x11223340); + EXPECT_EQ(expected, a4.s_addr); // huh? + + // No room, no room. + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "1.2.3.4", &a4, sizeof(a4) - 1)); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff", &a6, sizeof(a6) - 1)); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x01020304", &a4, 2)); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x01020304", &a4, 0)); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x0a0b0c0d", &a4, 0)); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x0xyz", &a4, 0)); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x1122334", &a4, sizeof(a4) - 1)); + EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "253", &a4, sizeof(a4) - 1)); +#endif + + EXPECT_EQ(1, ares_inet_pton(AF_INET, "1.2.3.4", &a4)); + EXPECT_EQ(1, ares_inet_pton(AF_INET6, "12:34::ff", &a6)); + EXPECT_EQ(1, ares_inet_pton(AF_INET6, "12:34::ffff:1.2.3.4", &a6)); + EXPECT_EQ(0, ares_inet_pton(AF_INET, "xyzzy", &a4)); + EXPECT_EQ(-1, ares_inet_pton(AF_INET+AF_INET6, "1.2.3.4", &a4)); +} + +TEST_F(LibraryTest, FreeCorruptData) { + // ares_free_data(p) expects that there is a type field and a marker + // field in the memory before p. Feed it incorrect versions of each. + struct ares_data *data = (struct ares_data *)malloc(sizeof(struct ares_data)); + void* p = &(data->data); + + // Invalid type + data->type = (ares_datatype)99; + data->mark = ARES_DATATYPE_MARK; + ares_free_data(p); + + // Invalid marker + data->type = (ares_datatype)ARES_DATATYPE_MX_REPLY; + data->mark = ARES_DATATYPE_MARK + 1; + ares_free_data(p); + + // Null pointer + ares_free_data(nullptr); + + free(data); +} + +#ifndef CARES_SYMBOL_HIDING +TEST_F(LibraryTest, FreeLongChain) { + struct ares_addr_node *data = nullptr; + for (int ii = 0; ii < 100000; ii++) { + struct ares_addr_node *prev = (struct ares_addr_node*)ares_malloc_data(ARES_DATATYPE_ADDR_NODE); + prev->next = data; + data = prev; + } + + ares_free_data(data); +} + +TEST(LibraryInit, StrdupFailures) { + EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL)); + char* copy = ares_strdup("string"); + EXPECT_NE(nullptr, copy); + ares_free(copy); + ares_library_cleanup(); +} + +TEST_F(LibraryTest, StrdupFailures) { + SetAllocFail(1); + char* copy = ares_strdup("string"); + EXPECT_EQ(nullptr, copy); +} + +TEST_F(LibraryTest, MallocDataFail) { + EXPECT_EQ(nullptr, ares_malloc_data((ares_datatype)99)); + SetAllocSizeFail(sizeof(struct ares_data)); + EXPECT_EQ(nullptr, ares_malloc_data(ARES_DATATYPE_MX_REPLY)); +} + +TEST(Misc, Bitncmp) { + byte a[4] = {0x80, 0x01, 0x02, 0x03}; + byte b[4] = {0x80, 0x01, 0x02, 0x04}; + byte c[4] = {0x01, 0xFF, 0x80, 0x02}; + EXPECT_GT(0, ares__bitncmp(a, b, sizeof(a)*8)); + EXPECT_LT(0, ares__bitncmp(b, a, sizeof(a)*8)); + EXPECT_EQ(0, ares__bitncmp(a, a, sizeof(a)*8)); + + for (int ii = 1; ii < (3*8+5); ii++) { + EXPECT_EQ(0, ares__bitncmp(a, b, ii)); + EXPECT_EQ(0, ares__bitncmp(b, a, ii)); + EXPECT_LT(0, ares__bitncmp(a, c, ii)); + EXPECT_GT(0, ares__bitncmp(c, a, ii)); + } + + // Last byte differs at 5th bit + EXPECT_EQ(0, ares__bitncmp(a, b, 3*8 + 3)); + EXPECT_EQ(0, ares__bitncmp(a, b, 3*8 + 4)); + EXPECT_EQ(0, ares__bitncmp(a, b, 3*8 + 5)); + EXPECT_GT(0, ares__bitncmp(a, b, 3*8 + 6)); + EXPECT_GT(0, ares__bitncmp(a, b, 3*8 + 7)); +} + +TEST_F(LibraryTest, Casts) { + ares_ssize_t ssz = 100; + unsigned int u = 100; + int i = 100; + long l = 100; + + unsigned int ru = aresx_sztoui(ssz); + EXPECT_EQ(u, ru); + int ri = aresx_sztosi(ssz); + EXPECT_EQ(i, ri); + + ri = aresx_sltosi(l); + EXPECT_EQ(l, (long)ri); +} + +TEST_F(LibraryTest, ReadLine) { + TempFile temp("abcde\n0123456789\nXYZ\n012345678901234567890\n\n"); + FILE *fp = fopen(temp.filename(), "r"); + size_t bufsize = 4; + char *buf = (char *)ares_malloc(bufsize); + + EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); + EXPECT_EQ("abcde", std::string(buf)); + EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); + EXPECT_EQ("0123456789", std::string(buf)); + EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); + EXPECT_EQ("XYZ", std::string(buf)); + SetAllocFail(1); + EXPECT_EQ(ARES_ENOMEM, ares__read_line(fp, &buf, &bufsize)); + EXPECT_EQ(nullptr, buf); + + fclose(fp); + ares_free(buf); +} + +TEST_F(LibraryTest, ReadLineNoBuf) { + TempFile temp("abcde\n0123456789\nXYZ\n012345678901234567890"); + FILE *fp = fopen(temp.filename(), "r"); + size_t bufsize = 0; + char *buf = nullptr; + + SetAllocFail(1); + EXPECT_EQ(ARES_ENOMEM, ares__read_line(fp, &buf, &bufsize)); + + EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); + EXPECT_EQ("abcde", std::string(buf)); + EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); + EXPECT_EQ("0123456789", std::string(buf)); + EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); + EXPECT_EQ("XYZ", std::string(buf)); + EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); + EXPECT_EQ("012345678901234567890", std::string(buf)); + + fclose(fp); + ares_free(buf); +} + +TEST(Misc, GetHostent) { + TempFile hostsfile("1.2.3.4 example.com \n" + " 2.3.4.5\tgoogle.com www.google.com\twww2.google.com\n" + "#comment\n" + "4.5.6.7\n" + "1.3.5.7 \n" + "::1 ipv6.com"); + struct hostent *host = nullptr; + FILE *fp = fopen(hostsfile.filename(), "r"); + ASSERT_NE(nullptr, fp); + EXPECT_EQ(ARES_EBADFAMILY, ares__get_hostent(fp, AF_INET+AF_INET6, &host)); + rewind(fp); + + EXPECT_EQ(ARES_SUCCESS, ares__get_hostent(fp, AF_INET, &host)); + ASSERT_NE(nullptr, host); + std::stringstream ss1; + ss1 << HostEnt(host); + EXPECT_EQ("{'example.com' aliases=[] addrs=[1.2.3.4]}", ss1.str()); + ares_free_hostent(host); + host = nullptr; + + EXPECT_EQ(ARES_SUCCESS, ares__get_hostent(fp, AF_INET, &host)); + ASSERT_NE(nullptr, host); + std::stringstream ss2; + ss2 << HostEnt(host); + EXPECT_EQ("{'google.com' aliases=[www.google.com, www2.google.com] addrs=[2.3.4.5]}", ss2.str()); + ares_free_hostent(host); + host = nullptr; + + EXPECT_EQ(ARES_EOF, ares__get_hostent(fp, AF_INET, &host)); + + rewind(fp); + EXPECT_EQ(ARES_SUCCESS, ares__get_hostent(fp, AF_INET6, &host)); + ASSERT_NE(nullptr, host); + std::stringstream ss3; + ss3 << HostEnt(host); + EXPECT_EQ("{'ipv6.com' aliases=[] addrs=[0000:0000:0000:0000:0000:0000:0000:0001]}", ss3.str()); + ares_free_hostent(host); + host = nullptr; + EXPECT_EQ(ARES_EOF, ares__get_hostent(fp, AF_INET6, &host)); + fclose(fp); +} + +TEST_F(LibraryTest, GetHostentAllocFail) { + TempFile hostsfile("1.2.3.4 example.com alias1 alias2\n"); + struct hostent *host = nullptr; + FILE *fp = fopen(hostsfile.filename(), "r"); + ASSERT_NE(nullptr, fp); + + for (int ii = 1; ii <= 8; ii++) { + rewind(fp); + ClearFails(); + SetAllocFail(ii); + host = nullptr; + EXPECT_EQ(ARES_ENOMEM, ares__get_hostent(fp, AF_INET, &host)) << ii; + } + fclose(fp); +} + +TEST_F(DefaultChannelTest, GetAddrInfoHostsPositive) { + TempFile hostsfile("1.2.3.4 example.com \n" + " 2.3.4.5\tgoogle.com www.google.com\twww2.google.com\n" + "#comment\n" + "4.5.6.7\n" + "1.3.5.7 \n" + "::1 ipv6.com"); + EnvValue with_env("CARES_HOSTS", hostsfile.filename()); + struct ares_addrinfo_hints hints = {}; + AddrInfoResult result = {}; + hints.ai_family = AF_INET; + hints.ai_flags = ARES_AI_CANONNAME | ARES_AI_ENVHOSTS | ARES_AI_NOSORT; + ares_getaddrinfo(channel_, "example.com", NULL, &hints, AddrInfoCallback, &result); + Process(); + EXPECT_TRUE(result.done_); + std::stringstream ss; + ss << result.ai_; + EXPECT_EQ("{example.com addr=[1.2.3.4]}", ss.str()); +} + +TEST_F(DefaultChannelTest, GetAddrInfoHostsSpaces) { + TempFile hostsfile("1.2.3.4 example.com \n" + " 2.3.4.5\tgoogle.com www.google.com\twww2.google.com\n" + "#comment\n" + "4.5.6.7\n" + "1.3.5.7 \n" + "::1 ipv6.com"); + EnvValue with_env("CARES_HOSTS", hostsfile.filename()); + struct ares_addrinfo_hints hints = {}; + AddrInfoResult result = {}; + hints.ai_family = AF_INET; + hints.ai_flags = ARES_AI_CANONNAME | ARES_AI_ENVHOSTS | ARES_AI_NOSORT; + ares_getaddrinfo(channel_, "google.com", NULL, &hints, AddrInfoCallback, &result); + Process(); + EXPECT_TRUE(result.done_); + std::stringstream ss; + ss << result.ai_; + EXPECT_EQ("{www.google.com->google.com, www2.google.com->google.com addr=[2.3.4.5]}", ss.str()); +} + +TEST_F(DefaultChannelTest, GetAddrInfoHostsByALias) { + TempFile hostsfile("1.2.3.4 example.com \n" + " 2.3.4.5\tgoogle.com www.google.com\twww2.google.com\n" + "#comment\n" + "4.5.6.7\n" + "1.3.5.7 \n" + "::1 ipv6.com"); + EnvValue with_env("CARES_HOSTS", hostsfile.filename()); + struct ares_addrinfo_hints hints = {}; + AddrInfoResult result = {}; + hints.ai_family = AF_INET; + hints.ai_flags = ARES_AI_CANONNAME | ARES_AI_ENVHOSTS | ARES_AI_NOSORT; + ares_getaddrinfo(channel_, "www2.google.com", NULL, &hints, AddrInfoCallback, &result); + Process(); + EXPECT_TRUE(result.done_); + std::stringstream ss; + ss << result.ai_; + EXPECT_EQ("{www.google.com->google.com, www2.google.com->google.com addr=[2.3.4.5]}", ss.str()); +} + +TEST_F(DefaultChannelTest, GetAddrInfoHostsIPV6) { + TempFile hostsfile("1.2.3.4 example.com \n" + " 2.3.4.5\tgoogle.com www.google.com\twww2.google.com\n" + "#comment\n" + "4.5.6.7\n" + "1.3.5.7 \n" + "::1 ipv6.com"); + EnvValue with_env("CARES_HOSTS", hostsfile.filename()); + struct ares_addrinfo_hints hints = {}; + AddrInfoResult result = {}; + hints.ai_family = AF_INET6; + hints.ai_flags = ARES_AI_CANONNAME | ARES_AI_ENVHOSTS | ARES_AI_NOSORT; + ares_getaddrinfo(channel_, "ipv6.com", NULL, &hints, AddrInfoCallback, &result); + Process(); + EXPECT_TRUE(result.done_); + std::stringstream ss; + ss << result.ai_; + EXPECT_EQ("{ipv6.com addr=[[0000:0000:0000:0000:0000:0000:0000:0001]]}", ss.str()); +} + +TEST_F(LibraryTest, GetAddrInfoAllocFail) { + TempFile hostsfile("1.2.3.4 example.com alias1 alias2\n"); + struct ares_addrinfo_hints hints; + unsigned short port = 80; + + memset(&hints, 0, sizeof(hints)); + hints.ai_family = AF_INET; + + FILE *fp = fopen(hostsfile.filename(), "r"); + ASSERT_NE(nullptr, fp); + + for (int ii = 1; ii <= 3; ii++) { + rewind(fp); + ClearFails(); + SetAllocFail(ii); + struct ares_addrinfo ai; + EXPECT_EQ(ARES_ENOMEM, ares__readaddrinfo(fp, "example.com", port, &hints, &ai)) << ii; + } + fclose(fp); +} + +TEST(Misc, OnionDomain) { + EXPECT_EQ(0, ares__is_onion_domain("onion.no")); + EXPECT_EQ(0, ares__is_onion_domain(".onion.no")); + EXPECT_EQ(1, ares__is_onion_domain(".onion")); + EXPECT_EQ(1, ares__is_onion_domain(".onion.")); + EXPECT_EQ(1, ares__is_onion_domain("yes.onion")); + EXPECT_EQ(1, ares__is_onion_domain("yes.onion.")); + EXPECT_EQ(1, ares__is_onion_domain("YES.ONION")); + EXPECT_EQ(1, ares__is_onion_domain("YES.ONION.")); +} +#endif + +#ifdef CARES_EXPOSE_STATICS +// These tests access internal static functions from the library, which +// are only exposed when CARES_EXPOSE_STATICS has been configured. As such +// they are tightly couple to the internal library implementation details. +extern "C" char *ares_striendstr(const char*, const char*); +TEST_F(LibraryTest, Striendstr) { + EXPECT_EQ(nullptr, ares_striendstr("abc", "12345")); + EXPECT_NE(nullptr, ares_striendstr("abc12345", "12345")); + EXPECT_NE(nullptr, ares_striendstr("abcxyzzy", "XYZZY")); + EXPECT_NE(nullptr, ares_striendstr("xyzzy", "XYZZY")); + EXPECT_EQ(nullptr, ares_striendstr("xyxzy", "XYZZY")); + EXPECT_NE(nullptr, ares_striendstr("", "")); + const char *str = "plugh"; + EXPECT_NE(nullptr, ares_striendstr(str, str)); +} +extern "C" int ares__single_domain(ares_channel, const char*, char**); +TEST_F(DefaultChannelTest, SingleDomain) { + TempFile aliases("www www.google.com\n"); + EnvValue with_env("HOSTALIASES", aliases.filename()); + + SetAllocSizeFail(128); + char *ptr = nullptr; + EXPECT_EQ(ARES_ENOMEM, ares__single_domain(channel_, "www", &ptr)); + + channel_->flags |= ARES_FLAG_NOSEARCH|ARES_FLAG_NOALIASES; + EXPECT_EQ(ARES_SUCCESS, ares__single_domain(channel_, "www", &ptr)); + EXPECT_EQ("www", std::string(ptr)); + ares_free(ptr); + ptr = nullptr; + + SetAllocFail(1); + EXPECT_EQ(ARES_ENOMEM, ares__single_domain(channel_, "www", &ptr)); + EXPECT_EQ(nullptr, ptr); +} +#endif + +TEST_F(DefaultChannelTest, SaveInvalidChannel) { + int saved = channel_->nservers; + channel_->nservers = -1; + struct ares_options opts; + int optmask = 0; + EXPECT_EQ(ARES_ENODATA, ares_save_options(channel_, &opts, &optmask)); + channel_->nservers = saved; +} + +// Need to put this in own function due to nested lambda bug +// in VS2013. (C2888) +static int configure_socket(ares_socket_t s) { + // transposed from ares-process, simplified non-block setter. +#if defined(USE_BLOCKING_SOCKETS) + return 0; /* returns success */ +#elif defined(HAVE_FCNTL_O_NONBLOCK) + /* most recent unix versions */ + int flags; + flags = fcntl(s, F_GETFL, 0); + return fcntl(s, F_SETFL, flags | O_NONBLOCK); +#elif defined(HAVE_IOCTL_FIONBIO) + /* older unix versions */ + int flags = 1; + return ioctl(s, FIONBIO, &flags); +#elif defined(HAVE_IOCTLSOCKET_FIONBIO) +#ifdef WATT32 + char flags = 1; +#else + /* Windows */ + unsigned long flags = 1UL; +#endif + return ioctlsocket(s, FIONBIO, &flags); +#elif defined(HAVE_IOCTLSOCKET_CAMEL_FIONBIO) + /* Amiga */ + long flags = 1L; + return IoctlSocket(s, FIONBIO, flags); +#elif defined(HAVE_SETSOCKOPT_SO_NONBLOCK) + /* BeOS */ + long b = 1L; + return setsockopt(s, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b)); +#else +# error "no non-blocking method was found/used/set" +#endif +} + +// TODO: This should not really be in this file, but we need ares config +// flags, and here they are available. +const struct ares_socket_functions VirtualizeIO::default_functions = { + [](int af, int type, int protocol, void *) -> ares_socket_t { + auto s = ::socket(af, type, protocol); + if (s == ARES_SOCKET_BAD) { + return s; + } + if (configure_socket(s) != 0) { + sclose(s); + return ares_socket_t(-1); + } + return s; + }, + [](ares_socket_t s, void * p) { + return :: sclose(s); + }, + [](ares_socket_t s, const struct sockaddr * addr, socklen_t len, void *) { + return ::connect(s, addr, len); + }, + [](ares_socket_t s, void * dst, size_t len, int flags, struct sockaddr * addr, socklen_t * alen, void *) -> ares_ssize_t { +#ifdef HAVE_RECVFROM + return ::recvfrom(s, reinterpret_cast(dst), len, flags, addr, alen); +#else + return sread(s, dst, len); +#endif + }, + [](ares_socket_t s, const struct iovec * vec, int len, void *) { +#ifndef HAVE_WRITEV + return ares_writev(s, vec, len); +#else + return :: writev(s, vec, len); +#endif + } +}; + + +} // namespace test +} // namespace ares -- cgit v1.2.3