Examples with DexException jadx.plugins.input.dex.DexException used on opensource projects

Example 1 with DexException

use of jadx.plugins.input.dex.DexException in project jadx by skylot.

the class MUtf8 method decode.

public static String decode(SectionReader in) {
    int len = in.readUleb128();
    char[] out = new char[len];
    int k = 0;
    while (true) {
        char a = (char) (in.readUByte() & 0xff);
        if (a == 0) {
            return new String(out, 0, k);
        }
        out[k] = a;
        if (a < '\u0080') {
            k++;
        } else if ((a & 0xE0) == 0xC0) {
            int b = in.readUByte();
            if ((b & 0xC0) != 0x80) {
                throw new DexException("Bad second byte");
            }
            out[k] = (char) (((a & 0x1F) << 6) | (b & 0x3F));
            k++;
        } else if ((a & 0xF0) == 0xE0) {
            int b = in.readUByte();
            int c = in.readUByte();
            if (((b & 0xC0) != 0x80) || ((c & 0xC0) != 0x80)) {
                throw new DexException("Bad second or third byte");
            }
            out[k] = (char) (((a & 0x0F) << 12) | ((b & 0x3F) << 6) | (c & 0x3F));
            k++;
        } else {
            throw new DexException("Bad byte");
        }
    }
}

Example 2 with DexException

use of jadx.plugins.input.dex.DexException in project jadx by skylot.

the class DexCodeReader method getTries.

@Override
public List<ITry> getTries() {
    int triesOffset = getTriesOffset();
    if (triesOffset == -1) {
        return Collections.emptyList();
    }
    int triesCount = getTriesCount();
    Map<Integer, ICatch> catchHandlers = getCatchHandlers(triesOffset + 8 * triesCount, in.copy());
    in.pos(triesOffset);
    List<ITry> triesList = new ArrayList<>(triesCount);
    for (int i = 0; i < triesCount; i++) {
        int startAddr = in.readInt();
        int insnsCount = in.readUShort();
        int handlerOff = in.readUShort();
        ICatch catchHandler = catchHandlers.get(handlerOff);
        if (catchHandler == null) {
            throw new DexException("Catch handler not found by byte offset: " + handlerOff);
        }
        triesList.add(new TryData(startAddr, startAddr + insnsCount - 1, catchHandler));
    }
    return triesList;
}

Example 3 with DexException

use of jadx.plugins.input.dex.DexException in project jadx by skylot.

the class DexCheckSum method verify.

public static void verify(byte[] content) {
    int len = content.length;
    if (len < 12) {
        throw new DexException("Dex file truncated, length: " + len);
    }
    int checksum = ByteBuffer.wrap(content, 8, 4).order(LITTLE_ENDIAN).getInt();
    Adler32 adler32 = new Adler32();
    adler32.update(content, 12, len - 12);
    int fileChecksum = (int) (adler32.getValue());
    if (checksum != fileChecksum) {
        throw new DexException(String.format("Bad checksum: 0x%08x, expected: 0x%08x", fileChecksum, checksum));
    }
}