46 lines
1010 B
Plaintext
46 lines
1010 B
Plaintext
# Automatically generated; edit in Sphinx source code, not here.
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# %hide-begin%
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module TFTP;
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type Opcode = enum { RRQ = 1, WRQ = 2, DATA = 3, ACK = 4, ERROR = 5 };
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public type Packet = unit {
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opcode: uint16 &convert=Opcode($$);
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# %hide-end%
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switch ( self.opcode ) {
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Opcode::RRQ -> rrq: ReadRequest;
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Opcode::WRQ -> wrq: WriteRequest;
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Opcode::DATA -> data: Data;
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Opcode::ACK -> ack: Acknowledgement;
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Opcode::ERROR -> error: Error;
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};
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# %hide-begin%
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on %done { print self; }
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};
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type ReadRequest = unit {
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filename: bytes &until=b"\x00";
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mode: bytes &until=b"\x00";
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};
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type WriteRequest = unit {
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filename: bytes &until=b"\x00";
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mode: bytes &until=b"\x00";
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};
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type Data = unit {
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num: uint16;
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data: bytes &eod; # parse until end of data (i.e., packet) is reached
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};
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type Acknowledgement = unit {
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num: uint16;
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};
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type Error = unit {
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code: uint16;
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msg: bytes &until=b"\x00";
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};
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# %hide-end% |