github.com/wangyougui/gf/v2@v2.6.5/net/gipv4/gipv4_mac.go (about)

     1  // Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
     2  //
     3  // This Source Code Form is subject to the terms of the MIT License.
     4  // If a copy of the MIT was not distributed with this file,
     5  // You can obtain one at https://github.com/wangyougui/gf.
     6  //
     7  
     8  package gipv4
     9  
    10  import (
    11  	"net"
    12  
    13  	"github.com/wangyougui/gf/v2/errors/gerror"
    14  )
    15  
    16  // GetMac retrieves and returns the first mac address of current host.
    17  func GetMac() (mac string, err error) {
    18  	macs, err := GetMacArray()
    19  	if err != nil {
    20  		return "", err
    21  	}
    22  	if len(macs) > 0 {
    23  		return macs[0], nil
    24  	}
    25  	return "", nil
    26  }
    27  
    28  // GetMacArray retrieves and returns all the mac address of current host.
    29  func GetMacArray() (macs []string, err error) {
    30  	netInterfaces, err := net.Interfaces()
    31  	if err != nil {
    32  		err = gerror.Wrap(err, `net.Interfaces failed`)
    33  		return nil, err
    34  	}
    35  	for _, netInterface := range netInterfaces {
    36  		macAddr := netInterface.HardwareAddr.String()
    37  		if len(macAddr) == 0 {
    38  			continue
    39  		}
    40  		macs = append(macs, macAddr)
    41  	}
    42  	return macs, nil
    43  }