Method read

extra/yassl/src/buffer.cpp:223–231

use read to query input, adjusts current

// use read to query input, adjusts current
void input_buffer::read(byte* dst, uint length)
{
    if (dst && error_ == 0 && check(current_ + length - 1, size_) == 0) {
        memcpy(dst, &buffer_[current_], length);
        current_ += length;
    } else {
        error_ = -1;
    }
}