I'm trying to port the following scala code to c++
Scala code:
def getLong(bytes: Array[Byte]): Long = {
//MessageDigest.getInstance("MD5")
val hash = messageDigest.get().digest(bytes)
val str = messageDigest.get().digest(bytes).map(_.toChar).mkString("")
val bb = ByteBuffer.wrap(hash)
bb.order(ByteOrder.LITTLE_ENDIAN)
val number: Long = bb.getInt & 0xffffffffL
number
}
C++ code:
unsigned long get_long(string key) {
unsigned long n = key.length();
unsigned char* uchrs = reinterpret_cast<unsigned char*>(const_cast<char*>(key.c_str()));
unsigned char outbuf[MD5_DIGEST_LENGTH];
MD5(uchrs, n, outbuf);
unsigned long number = *((unsigned long*)outbuf);
return number;
}
When I call the function with this input, its giving different output values, does anyone know what I'm doing wrong?
Example:
getLong("158750493953113325943f6e61350d949848bd2877f97aee4b6".getBytes) => 2384178603
get_long("158750493953113325943f6e61350d949848bd2877f97aee4b6") => 15019855082967248299
I tried something like this in the c++ code:
int num_int = number & INT_MAX & 0xffffffff;
it doesn't help (returning a different value 236694955).
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