INNER CODE UNIT · Python

frame

StratCraftsAI/NexusFix · fuzz/gen_corpus.py:25

def frame(begin_string, body_fields):
    body = "".join(f"{t}={v}{SOH}" for t, v in body_fields)
    head = f"8={begin_string}{SOH}9={len(body)}{SOH}"
    partial = head + body
    checksum = sum(ord(c) for c in partial) % 256
    return partial + f"10={checksum:03d}{SOH}"


def nos(begin_string, seq):
    # NewOrderSingle (35=D)
    return frame(begin_string, [
        ("35", "D"), ("49", "SENDER"), ("56", "TARGET"), ("34", str(seq)),
        ("52", "20231215-10:30:00"), ("11", "ORDER123"), ("55", "AAPL"),
        ("54", "1"), ("60", "20231215-10:30:00"), ("38", "100"),
        ("40", "2"), ("44", "150.25"),
    ])

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