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How can I make an UDP packet in Erlang?
The backbone of packets:
byte 0-3: SAMP
byte 4: 127
byte 5: 0
byte 6: 0
byte 7: 1
byte 8: first byte of ‘7777’
byte 9: second byte of ‘7777’
byte 10: ‘i’
assuming
SAMPis a variable and'i'is the character “i”.Look at Bit Syntax Expressions for the syntax of binaries and Bit Syntax Examples for more examples. The second one has an example of writing an IP packet in one bit syntax expression/pattern, which is very neat.