github.com/geraldss/go/src@v0.0.0-20210511222824-ac7d0ebfc235/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 }