32 lines
828 B
Scheme
Executable File
32 lines
828 B
Scheme
Executable File
#!/usr/bin/env scheme-script
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(import (ikarus))
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(define max-bytes 100000000)
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(define devrand (open-file-input-port "/dev/urandom"))
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(define (rand-length)
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(add1 (mod
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(bytevector-u16-ref (get-bytevector-n devrand 2) 0 'little)
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1024)))
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(define (echo host)
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(printf "Connecting\n")
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(let-values ([(op ip) (tcp-connect host "echo")])
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(printf "Connected\n")
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(let f ([bytes 0])
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(printf "~s " bytes)
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(when (<= bytes max-bytes)
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(let ([n (rand-length)])
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(let ([bv (get-bytevector-n devrand n)])
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(put-bytevector op bv)
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(flush-output-port op)
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(let ([v (get-bytevector-n ip n)])
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(assert (equal? v bv)))
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(f (+ bytes n))))))
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(close-input-port ip)
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(close-output-port op)
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(newline)))
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(echo "localhost")
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