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Encoding and decoding blobs now follows the spec with regards to size

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ErikR 2015-08-25 21:25:05 +02:00
parent 8af92db17f
commit be1a4f5d4b
1 changed files with 4 additions and 3 deletions
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osc.lisp
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@ -199,11 +199,12 @@
(setf acc (subseq acc pointer)))) (setf acc (subseq acc pointer))))
((eq x (char-code #\b)) ((eq x (char-code #\b))
(let* ((size (decode-int32 (subseq acc 0 4))) (let* ((size (decode-int32 (subseq acc 0 4)))
(end (padded-length (+ 4 size)))) (bl (+ 4 size))
(end (+ bl (mod (- 4 bl) 4)))) ; NOTE: cannot use (padded-length bl), as it is not the same algorithm. Blobs of 4, 8, 12 etc bytes should not be padded!
(push (decode-blob (subseq acc 0 end)) (push (decode-blob (subseq acc 0 end))
result) result)
(setf acc (subseq acc end)))) (setf acc (subseq acc end))))
(t (error "unrecognised typetag")))) (t (error "unrecognised typetag ~a" x))))
tags) tags)
(nreverse result)))) (nreverse result))))
@ -340,7 +341,7 @@
"encodes a blob from a given vector" "encodes a blob from a given vector"
(let ((bl (length blob))) (let ((bl (length blob)))
(cat (encode-int32 bl) blob (cat (encode-int32 bl) blob
(pad (padding-length bl))))) (pad (mod (- 4 bl) 4))))) ; NOTE: cannot use (padding-length bl), as it is not the same algorithm. Blobs of 4, 8, 12 etc bytes should not be padded!
;; utility functions for osc-string/padding slonking ;; utility functions for osc-string/padding slonking