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eb7c690ea9
This PR allows 'minio update' to not only shows update banner but also allows for in-place upgrades. Updates are done safely by validating the downloaded sha256 of the binary. Fixes #4781
54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
package binarydist
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// SignMagLittleEndian is the numeric encoding used by the bsdiff tools.
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// It implements binary.ByteOrder using a sign-magnitude format
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// and little-endian byte order. Only methods Uint64 and String
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// have been written; the rest panic.
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type signMagLittleEndian struct{}
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func (signMagLittleEndian) Uint16(b []byte) uint16 { panic("unimplemented") }
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func (signMagLittleEndian) PutUint16(b []byte, v uint16) { panic("unimplemented") }
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func (signMagLittleEndian) Uint32(b []byte) uint32 { panic("unimplemented") }
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func (signMagLittleEndian) PutUint32(b []byte, v uint32) { panic("unimplemented") }
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func (signMagLittleEndian) Uint64(b []byte) uint64 {
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y := int64(b[0]) |
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int64(b[1])<<8 |
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int64(b[2])<<16 |
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int64(b[3])<<24 |
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int64(b[4])<<32 |
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int64(b[5])<<40 |
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int64(b[6])<<48 |
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int64(b[7]&0x7f)<<56
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if b[7]&0x80 != 0 {
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y = -y
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}
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return uint64(y)
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}
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func (signMagLittleEndian) PutUint64(b []byte, v uint64) {
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x := int64(v)
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neg := x < 0
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if neg {
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x = -x
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}
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b[0] = byte(x)
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b[1] = byte(x >> 8)
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b[2] = byte(x >> 16)
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b[3] = byte(x >> 24)
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b[4] = byte(x >> 32)
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b[5] = byte(x >> 40)
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b[6] = byte(x >> 48)
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b[7] = byte(x >> 56)
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if neg {
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b[7] |= 0x80
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}
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}
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func (signMagLittleEndian) String() string { return "signMagLittleEndian" }
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