Examples with NulTerminatedCharsetDecoder com.facebook.buck.charset.NulTerminatedCharsetDecoder used on opensource projects

Example 21 with NulTerminatedCharsetDecoder

use of com.facebook.buck.charset.NulTerminatedCharsetDecoder in project buck by facebook.

the class SegmentCommandTest method testCreatingFromBytes32BitsLittleEndian.

@Test
public void testCreatingFromBytes32BitsLittleEndian() throws Exception {
    ByteBuffer byteBuffer = bufferWithBytes(SegmentCommandTestData.getLittleEndian32Bits(), 10);
    byteBuffer.order(ByteOrder.LITTLE_ENDIAN);
    SegmentCommand command = SegmentCommandUtils.createFromBuffer(byteBuffer, new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder()));
    assertThat(command.getLoadCommandCommonFields().getOffsetInBinary(), equalTo(10));
    SegmentCommandTestData.checkValues(command, false);
}

Example 22 with NulTerminatedCharsetDecoder

use of com.facebook.buck.charset.NulTerminatedCharsetDecoder in project buck by facebook.

the class SegmentCommandUtilsTest method testEnumeratingSectionsWorksRegardingOfCmdsize.

@Test
public void testEnumeratingSectionsWorksRegardingOfCmdsize() throws Exception {
    // There was a bug when section's offset was computed incorrectly: offset = cmd.offset + cmdsize
    // It was fixed roughly by the next formula: offset = cmd.offset + cmd.sizeOfHeader
    // So this test checks this
    final int sectionSize = SectionTestData.getBigEndian64Bit().length;
    byte[] sectionData1 = SectionTestData.getBigEndian64Bit();
    // offset = 1
    sectionData1[51] = (byte) 0x01;
    byte[] sectionData2 = SectionTestData.getBigEndian64Bit();
    // sectname = "DECTNAME"
    sectionData2[0] = (byte) 0x44;
    // segname = "DEGNAME"
    sectionData2[16] = (byte) 0x44;
    // offset = 2
    sectionData2[51] = (byte) 0x02;
    byte[] sectionData3 = SectionTestData.getBigEndian64Bit();
    // sectname = "LECTNAME"
    sectionData3[0] = (byte) 0x4C;
    // segname = "LEGNAME"
    sectionData3[16] = (byte) 0x4C;
    // offset = 3
    sectionData3[51] = (byte) 0x03;
    byte[] segmentBytes = SegmentCommandTestData.getBigEndian64Bits();
    segmentBytes[6] = (byte) 0xAA;
    // cmdsize = 0xAAFF == 43755 bytes!!!
    segmentBytes[7] = (byte) 0xFF;
    // nsects = 3
    segmentBytes[67] = (byte) 0x03;
    SegmentCommand command = SegmentCommandUtils.createFromBuffer(ByteBuffer.wrap(segmentBytes).order(ByteOrder.BIG_ENDIAN), new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder()));
    ByteBuffer buffer = ByteBuffer.allocate(command.getLoadCommandCommonFields().getCmdsize().intValue() + 3 * sectionSize);
    buffer.order(ByteOrder.BIG_ENDIAN);
    SegmentCommandUtils.writeCommandToBuffer(command, buffer, true);
    buffer.put(sectionData1);
    buffer.put(sectionData2);
    buffer.put(sectionData3);
    final List<Section> enumeratedSections = new ArrayList<>();
    SegmentCommandUtils.enumerateSectionsInSegmentLoadCommand(buffer, new MachoMagicInfo(UnsignedInteger.fromIntBits(0xFEEDFACF)), command, new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder()), input -> {
        enumeratedSections.add(input);
        return Boolean.TRUE;
    });
    assertThat(enumeratedSections.size(), equalTo(3));
    assertThat(enumeratedSections.get(0).getSectname(), equalToObject("SECTNAME"));
    assertThat(enumeratedSections.get(0).getSegname(), equalToObject("SEGNAME"));
    assertThat(enumeratedSections.get(0).getOffset(), equalToObject(UnsignedInteger.fromIntBits(0x01)));
    assertThat(enumeratedSections.get(1).getSectname(), equalToObject("DECTNAME"));
    assertThat(enumeratedSections.get(1).getSegname(), equalToObject("DEGNAME"));
    assertThat(enumeratedSections.get(1).getOffset(), equalToObject(UnsignedInteger.fromIntBits(0x02)));
    assertThat(enumeratedSections.get(2).getSectname(), equalToObject("LECTNAME"));
    assertThat(enumeratedSections.get(2).getSegname(), equalToObject("LEGNAME"));
    assertThat(enumeratedSections.get(2).getOffset(), equalToObject(UnsignedInteger.fromIntBits(0x03)));
}

Example 23 with NulTerminatedCharsetDecoder

use of com.facebook.buck.charset.NulTerminatedCharsetDecoder in project buck by facebook.

the class SymTabCommandUtilsTest method testGettingStringTableValueForNlist.

@Test
public void testGettingStringTableValueForNlist() throws Exception {
    final String stringTableEntry = "string_table_entry";
    byte[] nlistBytes = NlistTestData.getBigEndian64Bit();
    // strx - first entry
    nlistBytes[3] = (byte) (0x01);
    byte[] commandBytes = SymTabCommandTestData.getBigEndian();
    final int cmdSize = commandBytes.length;
    // symoff
    commandBytes[11] = (byte) cmdSize;
    // nsyms
    commandBytes[15] = (byte) 1;
    // stroff
    commandBytes[19] = (byte) (cmdSize + nlistBytes.length);
    // strsize
    commandBytes[23] = (byte) (stringTableEntry.length() + 1);
    ByteBuffer byteBuffer = ByteBuffer.allocate(commandBytes.length + nlistBytes.length + 1 + stringTableEntry.length() + 1).order(ByteOrder.BIG_ENDIAN).put(commandBytes).put(nlistBytes).put((byte) 0x00).put(stringTableEntry.getBytes(StandardCharsets.UTF_8)).put((byte) 0x00);
    byteBuffer.position(0);
    SymTabCommand symTabCommand = SymTabCommandUtils.createFromBuffer(byteBuffer);
    assertThat(symTabCommand.getSymoff(), equalToObject(UnsignedInteger.fromIntBits(cmdSize)));
    assertThat(symTabCommand.getNsyms(), equalToObject(UnsignedInteger.fromIntBits(1)));
    byteBuffer.position(cmdSize);
    Nlist nlist = NlistUtils.createFromBuffer(byteBuffer, true);
    assertThat(nlist.getN_strx(), equalToObject(UnsignedInteger.fromIntBits(1)));
    String result = SymTabCommandUtils.getStringTableEntryForNlist(byteBuffer, symTabCommand, nlist, new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder()));
    assertThat(result, equalToObject(stringTableEntry));
}

Example 24 with NulTerminatedCharsetDecoder

use of com.facebook.buck.charset.NulTerminatedCharsetDecoder in project buck by facebook.

the class UnixArchiveTest method testReadingArchive.

@Test
public void testReadingArchive() throws IOException {
    Path path = tmp.resolve("test_archive.a");
    createArchiveAtPath(path);
    UnixArchive archive = new UnixArchive(FileChannel.open(path, StandardOpenOption.READ, StandardOpenOption.WRITE), new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder()));
    assertThat(archive.getEntries().size(), equalTo(3));
    assertThat(archive.getEntries().get(0).getFileName(), equalToObject("__.SYMDEF SORTED"));
    assertThat(archive.getEntries().get(0).getFileModificationTimestamp(), equalTo(1463146035L));
    assertThat(archive.getEntries().get(0).getOwnerId(), equalTo(10727));
    assertThat(archive.getEntries().get(0).getGroupId(), equalTo(11706));
    assertThat(archive.getEntries().get(0).getFileMode(), equalTo(100644));
    assertThat(archive.getEntries().get(1).getFileName(), equalToObject("file1.txt"));
    assertThat(archive.getEntries().get(1).getFileModificationTimestamp(), equalTo(1463145840L));
    assertThat(archive.getEntries().get(1).getFileSize(), equalTo(16L));
    MappedByteBuffer buffer1 = archive.getMapForEntry(archive.getEntries().get(1));
    byte[] strBytes1 = new byte[(int) archive.getEntries().get(1).getFileSize()];
    buffer1.get(strBytes1, 0, (int) archive.getEntries().get(1).getFileSize());
    assertThat(new String(strBytes1), equalToObject("FILE1_CONTENTS\n\n"));
    assertThat(archive.getEntries().get(2).getFileName(), equalToObject("file2.txt"));
    assertThat(archive.getEntries().get(2).getFileModificationTimestamp(), equalTo(1463145848L));
    assertThat(archive.getEntries().get(2).getFileSize(), equalTo(32L));
    MappedByteBuffer buffer2 = archive.getMapForEntry(archive.getEntries().get(2));
    byte[] strBytes2 = new byte[(int) archive.getEntries().get(2).getFileSize()];
    buffer2.get(strBytes2, 0, (int) archive.getEntries().get(2).getFileSize());
    assertThat(new String(strBytes2), equalToObject("FILE2_CONTENTS_FILE2_CONTENTS\n\n\n"));
    archive.close();
}

Example 25 with NulTerminatedCharsetDecoder

use of com.facebook.buck.charset.NulTerminatedCharsetDecoder in project buck by facebook.

the class UnixArchiveTest method testModifyingArchive.

@Test
public void testModifyingArchive() throws IOException {
    Path path = tmp.resolve("test_archive.a");
    createArchiveAtPath(path);
    UnixArchive archive = new UnixArchive(FileChannel.open(path, StandardOpenOption.READ, StandardOpenOption.WRITE), new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder()));
    MappedByteBuffer buffer = archive.getMapForEntry(archive.getEntries().get(1));
    byte[] bytes = new byte[(int) archive.getEntries().get(1).getFileSize()];
    buffer.get(bytes, 0, (int) archive.getEntries().get(1).getFileSize());
    assertThat(new String(bytes), equalToObject("FILE1_CONTENTS\n\n"));
    buffer.position(0);
    buffer.put("NEW_CONTENTS!!!!".getBytes(Charsets.UTF_8));
    archive.close();
    String updatedContents = new String(Files.readAllBytes(path));
    assertThat(updatedContents, not(containsString("FILE1_CONTENTS")));
    assertThat(updatedContents, containsString("NEW_CONTENTS!!!!"));
}