github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/util/testaddr_random.go (about)

     1  // Copyright 2016 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  // +build linux
    12  
    13  package util
    14  
    15  import (
    16  	"fmt"
    17  
    18  	"github.com/cockroachdb/cockroach/pkg/util/randutil"
    19  )
    20  
    21  func init() {
    22  	r, _ := randutil.NewPseudoRand()
    23  	// 127.255.255.255 is special (broadcast), so choose values less
    24  	// than 255.
    25  	a := r.Intn(255)
    26  	b := r.Intn(255)
    27  	c := r.Intn(255)
    28  	IsolatedTestAddr = NewUnresolvedAddr("tcp", fmt.Sprintf("127.%d.%d.%d:0", a, b, c))
    29  }