mirror of
https://github.com/espressif/openthread.git
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Abtin Keshavarzian
73126f7099
This commit adds `Dns::Name` type which provides a set of helper methods to encode/decode DNS names. `AppendName()` method encodes and appends a full name (e.g., "test.example.com") to a message. Other helper methods enable appending labels (or groups of labels) and/or constructing a compressed name (using pointer labels). `ParseName()` method parses and skips over a full name in a message. `ReadLabel()` method reads labels one by one and works independently of whether the encoded name is compressed or not. `ReadName()` method read an entire name from message. The new methods are used in `Dns::Client`. This commit also add a unit test `test-dns` covering the behavior of the newly added helper methods. Finally, this commit adds few helper methods in `ResourceRecords` to get the size and check the type of a DNS record.
189 lines
7.6 KiB
C++
189 lines
7.6 KiB
C++
/*
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* Copyright (c) 2018, The OpenThread Authors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "test_platform.h"
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#include <openthread/config.h>
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#include "test_util.h"
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#include "common/code_utils.hpp"
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#include "common/string.hpp"
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namespace ot {
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enum
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{
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kStringSize = 10,
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};
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template <uint16_t kSize> void PrintString(const char *aName, const String<kSize> aString)
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{
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printf("\t%s = [%d] \"%s\"\n", aName, aString.GetLength(), aString.AsCString());
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}
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void TestString(void)
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{
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otError error;
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String<kStringSize> str1;
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String<kStringSize> str2("abc");
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String<kStringSize> str3("%d", 12);
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printf("\nTest 1: String constructor\n");
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VerifyOrQuit(str1.GetSize() == kStringSize, "GetSize() failed");
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VerifyOrQuit(str1.GetLength() == 0, "GetLength() failed for empty string");
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VerifyOrQuit(str2.GetLength() == 3, "GetLength() failed");
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VerifyOrQuit(str3.GetLength() == 2, "GetLength() failed");
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VerifyOrQuit(strcmp(str1.AsCString(), "") == 0, "String content is incorrect");
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VerifyOrQuit(strcmp(str2.AsCString(), "abc") == 0, "String content is incorrect");
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VerifyOrQuit(strcmp(str3.AsCString(), "12") == 0, "String content is incorrect");
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PrintString("str1", str1);
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PrintString("str2", str2);
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PrintString("str3", str3);
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printf(" -- PASS\n");
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printf("\nTest 2: String::Set() and String::Clear() method\n");
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error = str1.Set("Hello");
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SuccessOrQuit(error, "String::Set() failed unexpectedly");
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VerifyOrQuit(str1.GetLength() == 5, "GetLength() failed for empty string");
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VerifyOrQuit(strcmp(str1.AsCString(), "Hello") == 0, "String content is incorrect");
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PrintString("str1", str1);
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str1.Clear();
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VerifyOrQuit(str1.GetLength() == 0, "GetLength() failed for empty string");
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VerifyOrQuit(strcmp(str1.AsCString(), "") == 0, "String content is incorrect");
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IgnoreError(str1.Set("%d", 12));
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VerifyOrQuit(str1.GetLength() == 2, "GetLength() failed");
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VerifyOrQuit(strcmp(str1.AsCString(), "12") == 0, "String content is incorrect");
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PrintString("str1", str1);
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error = str1.Set("abcdefghijklmnopqratuvwxyzabcdefghijklmnopqratuvwxyz");
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VerifyOrQuit(error == OT_ERROR_NO_BUFS, "String::Set() did not handle overflow buffer correctly");
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PrintString("str1", str1);
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printf("\nTest 3: String::Append() method\n");
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str2.Clear();
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VerifyOrQuit(str2.GetLength() == 0, "GetLength() failed for empty string");
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VerifyOrQuit(strcmp(str2.AsCString(), "") == 0, "String content is incorrect");
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error = str2.Append("Hi");
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SuccessOrQuit(error, "String::Append() failed unexpectedly");
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VerifyOrQuit(str2.GetLength() == 2, "GetLength() failed");
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VerifyOrQuit(strcmp(str2.AsCString(), "Hi") == 0, "String content is incorrect");
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PrintString("str2", str2);
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error = str2.Append("%s%d", "!", 12);
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SuccessOrQuit(error, "String::Append() failed unexpectedly");
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VerifyOrQuit(str2.GetLength() == 5, "GetLength() failed");
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VerifyOrQuit(strcmp(str2.AsCString(), "Hi!12") == 0, "String content is incorrect");
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PrintString("str2", str2);
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error = str2.Append("abcdefghijklmnopqratuvwxyzabcdefghijklmnopqratuvwxyz");
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VerifyOrQuit(error == OT_ERROR_NO_BUFS, "String::Append() did not handle overflow buffer correctly");
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PrintString("str2", str2);
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printf(" -- PASS\n");
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}
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void TestStringLength(void)
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{
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char string_a[5] = "\0foo";
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char string_b[8] = "foo\0bar";
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printf("\nTest 4: String::StringLength() method\n");
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VerifyOrQuit(StringLength(string_a, 0) == 0, "StringLength() 0len 0 fails");
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VerifyOrQuit(StringLength(string_a, 1) == 0, "StringLength() 0len 1 fails");
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VerifyOrQuit(StringLength(string_a, 2) == 0, "StringLength() 0len 2 fails");
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VerifyOrQuit(StringLength(string_b, 0) == 0, "StringLength() 3len 0 fails");
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VerifyOrQuit(StringLength(string_b, 1) == 1, "StringLength() 3len 1 fails");
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VerifyOrQuit(StringLength(string_b, 2) == 2, "StringLength() 3len 2 fails");
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VerifyOrQuit(StringLength(string_b, 3) == 3, "StringLength() 3len 3 fails");
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VerifyOrQuit(StringLength(string_b, 4) == 3, "StringLength() 3len 4 fails");
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VerifyOrQuit(StringLength(string_b, 5) == 3, "StringLength() 3len 5 fails");
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VerifyOrQuit(StringLength(string_b, 6) == 3, "StringLength() 3len 6 fails");
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printf(" -- PASS\n");
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}
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void TestUtf8(void)
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{
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printf("\nTest 5: IsValidUtf8String() function\n");
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VerifyOrQuit(IsValidUtf8String("An ASCII string"), "IsValidUtf8String() ASCII string fails");
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VerifyOrQuit(IsValidUtf8String(u8"Строка UTF-8"), "IsValidUtf8String() UTF-8 string fails");
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VerifyOrQuit(!IsValidUtf8String("\xbf"), "IsValidUtf8String() illegal string fails");
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VerifyOrQuit(!IsValidUtf8String("\xdf"), "IsValidUtf8String() illegal string fails");
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VerifyOrQuit(!IsValidUtf8String("\xef\x80"), "IsValidUtf8String() illegal string fails");
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VerifyOrQuit(!IsValidUtf8String("\xf7\x80\x80"), "IsValidUtf8String() illegal string fails");
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VerifyOrQuit(!IsValidUtf8String("\xff"), "IsValidUtf8String() illegal string fails");
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printf(" -- PASS\n");
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}
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void TestStringFind(void)
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{
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char emptyString[1] = {'\0'};
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char testString[] = "foo.bar\\.";
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printf("\nTest 6: StringFind() function\n");
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VerifyOrQuit(StringFind(testString, 'f') == testString, "StringFind() failed");
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VerifyOrQuit(StringFind(testString, 'o') == &testString[1], "StringFind() failed");
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VerifyOrQuit(StringFind(testString, '.') == &testString[3], "StringFind() failed");
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VerifyOrQuit(StringFind(testString, 'r') == &testString[6], "StringFind() failed");
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VerifyOrQuit(StringFind(testString, '\\') == &testString[7], "StringFind() failed");
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VerifyOrQuit(StringFind(testString, 'x') == nullptr, "StringFind() failed");
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VerifyOrQuit(StringFind(testString, ',') == nullptr, "StringFind() failed");
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VerifyOrQuit(StringFind(emptyString, 'f') == nullptr, "StringFind() failed");
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VerifyOrQuit(StringFind(emptyString, '.') == nullptr, "StringFind() failed");
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printf(" -- PASS\n");
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}
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} // namespace ot
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int main(void)
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{
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ot::TestString();
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ot::TestStringLength();
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ot::TestUtf8();
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ot::TestStringFind();
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printf("\nAll tests passed.\n");
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return 0;
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}
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