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34 lines
627 B
Go
34 lines
627 B
Go
3 months ago
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//
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// utils.go
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// Copyright (C) 2025 veypi <i@veypi.com>
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// 2025-07-15 17:13
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// Distributed under terms of the MIT license.
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//
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package utils
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import (
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"math/rand"
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"time"
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"unsafe"
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)
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var letters = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890")
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var size = int32(len(letters))
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var seed = rand.New(rand.NewSource(time.Now().UnixNano()))
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// RandSeq produce random string seq
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func RandSeq(n int) string {
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b := make([]byte, n)
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for i := range b {
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b[i] = letters[seed.Int31n(size)]
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}
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return *(*string)(unsafe.Pointer(&b))
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}
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func Rand(n int) []byte {
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b := make([]byte, n)
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seed.Read(b)
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return b
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}
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