/usr/share/gocode/src/github.com/kr/binarydist/encoding.go is in golang-github-kr-binarydist-dev 0.0~git20120828.0.9955b0a-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | package binarydist
// SignMagLittleEndian is the numeric encoding used by the bsdiff tools.
// It implements binary.ByteOrder using a sign-magnitude format
// and little-endian byte order. Only methods Uint64 and String
// have been written; the rest panic.
type signMagLittleEndian struct{}
func (signMagLittleEndian) Uint16(b []byte) uint16 { panic("unimplemented") }
func (signMagLittleEndian) PutUint16(b []byte, v uint16) { panic("unimplemented") }
func (signMagLittleEndian) Uint32(b []byte) uint32 { panic("unimplemented") }
func (signMagLittleEndian) PutUint32(b []byte, v uint32) { panic("unimplemented") }
func (signMagLittleEndian) Uint64(b []byte) uint64 {
y := int64(b[0]) |
int64(b[1])<<8 |
int64(b[2])<<16 |
int64(b[3])<<24 |
int64(b[4])<<32 |
int64(b[5])<<40 |
int64(b[6])<<48 |
int64(b[7]&0x7f)<<56
if b[7]&0x80 != 0 {
y = -y
}
return uint64(y)
}
func (signMagLittleEndian) PutUint64(b []byte, v uint64) {
x := int64(v)
neg := x < 0
if neg {
x = -x
}
b[0] = byte(x)
b[1] = byte(x >> 8)
b[2] = byte(x >> 16)
b[3] = byte(x >> 24)
b[4] = byte(x >> 32)
b[5] = byte(x >> 40)
b[6] = byte(x >> 48)
b[7] = byte(x >> 56)
if neg {
b[7] |= 0x80
}
}
func (signMagLittleEndian) String() string { return "signMagLittleEndian" }
|