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37 lines
560 B
Go
37 lines
560 B
Go
// Copyright 2012 Apcera Inc. All rights reserved.
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package server
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import (
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"crypto/rand"
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"encoding/hex"
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"io"
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)
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func genId() string {
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u := make([]byte, 16)
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io.ReadFull(rand.Reader, u)
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return hex.EncodeToString(u)
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}
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// Ascii numbers 0-9
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const (
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ascii_0 = 48
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ascii_9 = 57
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)
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// parseSize expects decimal positive numbers. We
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// return -1 to signal error
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func parseSize(d []byte) (n int) {
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if len(d) == 0 {
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return -1
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}
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for _, dec := range d {
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if dec < ascii_0 || dec > ascii_9 {
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return -1
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}
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n = n*10 + (int(dec) - ascii_0)
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}
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return n
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}
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