nx_wire_logger.nx

nx_wire_logger.nx -- bits-up TCP wire logger. Replaces external packet capture tools (Wireshark, tcpdump) with a native NishiLang primitive that interposes on send/recv at the TCP fd boundary. Direction-labeled hex dumps go to a chosen log fd (typically stderr=2 or a dedicated file). Substrate-honesty principle: any time we'd reach for Wireshark to "see the bytes," we owe ourselves a native primitive. This is that primitive. API: nx_wire_send(fd, log_fd, label, label_len, buf, len) -> i64 Calls sys_write(fd, buf, len); if log_fd > 0, hex-dumps the same bytes to log_fd with the label prefix. Returns sys_write result (bytes written, or negative on error). nx_wire_recv(fd, log_fd, label, label_len, buf, max) -> i64 Calls sys_read(fd, buf, max); if log_fd > 0, hex-dumps the first n bytes (n = read result) to log_fd. Returns sys_read result. Per Cardinals 9, 22. Composes nx_hex_dump. license_tier: ORIGINAL lineage_id: nishi_wire_logger_q10