github.com/zxy12/go_duplicate_112_new@v0.0.0-20200807091221-747231827200/src/os/sys_aix.go (about)

     1  // Copyright 2018 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  package os
     6  
     7  import "syscall"
     8  
     9  // gethostname syscall cannot be used because it also returns the domain.
    10  // Therefore, hostname is retrieve with uname syscall and the Nodename field.
    11  
    12  func hostname() (name string, err error) {
    13  	var u syscall.Utsname
    14  	if errno := syscall.Uname(&u); errno != nil {
    15  		return "", NewSyscallError("uname", errno)
    16  	}
    17  	b := make([]byte, len(u.Nodename))
    18  	i := 0
    19  	for ; i < len(u.Nodename); i++ {
    20  		if u.Nodename[i] == 0 {
    21  			break
    22  		}
    23  		b[i] = byte(u.Nodename[i])
    24  	}
    25  	return string(b[:i]), nil
    26  }