*: Move sideband64k and pktline to protocol/

1 files changed, 0 insertions, 57 deletions

diff --git a/format/pktline/header.go b/format/pktline/header.go
deleted file mode 100644
index 41e50e04..00000000
--- a/format/pktline/header.go
+++ /dev/null
@@ -1,57 +0,0 @@
-package pktline
-
-import "fmt"
-
-func hexval(b byte) int {
-	switch {
-	case b >= '0' && b <= '9':
-		return int(b - '0')
-	case b >= 'a' && b <= 'f':
-		return int(b-'a') + 10
-	case b >= 'A' && b <= 'F':
-		return int(b-'A') + 10
-	default:
-		return -1
-	}
-}
-
-// ParseLengthHeader parses a 4-byte hexadecimal pkt-line length header.
-//
-// The returned value is the full on-wire packet size, including the 4-byte
-// header. Semantic interpretation (data/control/error) is done by Decoder.
-//
-// The 4-byte header is only an actual length when above or equal to 4.
-// Otherwise, it indicates some control packet.
-func ParseLengthHeader(h [4]byte) (int, error) {
-	a := hexval(h[0])
-	b := hexval(h[1])
-	c := hexval(h[2])
-	d := hexval(h[3])
-
-	if a < 0 || b < 0 || c < 0 || d < 0 {
-		return 0, fmt.Errorf("%w: %q", ErrInvalidLength, string(h[:]))
-	}
-
-	return (a << 12) | (b << 8) | (c << 4) | d, nil
-}
-
-// EncodeLengthHeader encodes n as a 4-byte hexadecimal pkt-line header.
-//
-// n is the full on-wire packet size including the 4-byte header.
-//
-// The 4-byte header is only an actual length when above or equal to 4.
-// Otherwise, it indicates some control packet.
-func EncodeLengthHeader(dst *[4]byte, n int) error {
-	if n < 0 || n > LargePacketMax {
-		return fmt.Errorf("%w: %d", ErrInvalidLength, n)
-	}
-
-	const hex = "0123456789abcdef"
-
-	dst[0] = hex[(n>>12)&0xf]
-	dst[1] = hex[(n>>8)&0xf]
-	dst[2] = hex[(n>>4)&0xf]
-	dst[3] = hex[n&0xf]
-
-	return nil
-}