github.com/code-reading/golang@v0.0.0-20220303082512-ba5bc0e589a3/go/src/net/internal/socktest/switch_posix.go (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build !plan9
     6  // +build !plan9
     7  
     8  package socktest
     9  
    10  import (
    11  	"fmt"
    12  	"syscall"
    13  )
    14  
    15  func familyString(family int) string {
    16  	switch family {
    17  	case syscall.AF_INET:
    18  		return "inet4"
    19  	case syscall.AF_INET6:
    20  		return "inet6"
    21  	case syscall.AF_UNIX:
    22  		return "local"
    23  	default:
    24  		return fmt.Sprintf("%d", family)
    25  	}
    26  }
    27  
    28  func typeString(sotype int) string {
    29  	var s string
    30  	switch sotype & 0xff {
    31  	case syscall.SOCK_STREAM:
    32  		s = "stream"
    33  	case syscall.SOCK_DGRAM:
    34  		s = "datagram"
    35  	case syscall.SOCK_RAW:
    36  		s = "raw"
    37  	case syscall.SOCK_SEQPACKET:
    38  		s = "seqpacket"
    39  	default:
    40  		s = fmt.Sprintf("%d", sotype&0xff)
    41  	}
    42  	if flags := uint(sotype) & ^uint(0xff); flags != 0 {
    43  		s += fmt.Sprintf("|%#x", flags)
    44  	}
    45  	return s
    46  }
    47  
    48  func protocolString(proto int) string {
    49  	switch proto {
    50  	case 0:
    51  		return "default"
    52  	case syscall.IPPROTO_TCP:
    53  		return "tcp"
    54  	case syscall.IPPROTO_UDP:
    55  		return "udp"
    56  	default:
    57  		return fmt.Sprintf("%d", proto)
    58  	}
    59  }