stat_linuxlike.mx raw

   1  //go:build (linux && !baremetal && !wasm_unknown && !nintendoswitch) || wasip1 || wasip2
   2  
   3  // Copyright 2009 The Go Authors. All rights reserved.
   4  // Use of this source code is governed by a BSD-style
   5  // license that can be found in the LICENSE file.
   6  
   7  // Note: this file is used for both Linux and WASI.
   8  // Eventually it might be better to spit it up, and make the syscall constants
   9  // match the typical WASI constants instead of the Linux-equivalents used here.
  10  
  11  package os
  12  
  13  import (
  14  	"syscall"
  15  	"time"
  16  )
  17  
  18  func fillFileStatFromSys(fs *fileStat, name string) {
  19  	fs.name = basename(name)
  20  	fs.size = fs.sys.Size
  21  	fs.modTime = timespecToTime(fs.sys.Mtim)
  22  	fs.mode = FileMode(fs.sys.Mode & 0777)
  23  	switch fs.sys.Mode & syscall.S_IFMT {
  24  	case syscall.S_IFBLK:
  25  		fs.mode |= ModeDevice
  26  	case syscall.S_IFCHR:
  27  		fs.mode |= ModeDevice | ModeCharDevice
  28  	case syscall.S_IFDIR:
  29  		fs.mode |= ModeDir
  30  	case syscall.S_IFIFO:
  31  		fs.mode |= ModeNamedPipe
  32  	case syscall.S_IFLNK:
  33  		fs.mode |= ModeSymlink
  34  	case syscall.S_IFREG:
  35  		// nothing to do
  36  	case syscall.S_IFSOCK:
  37  		fs.mode |= ModeSocket
  38  	}
  39  	if fs.sys.Mode&syscall.S_ISGID != 0 {
  40  		fs.mode |= ModeSetgid
  41  	}
  42  	if fs.sys.Mode&syscall.S_ISUID != 0 {
  43  		fs.mode |= ModeSetuid
  44  	}
  45  	if fs.sys.Mode&syscall.S_ISVTX != 0 {
  46  		fs.mode |= ModeSticky
  47  	}
  48  }
  49  
  50  func timespecToTime(ts syscall.Timespec) time.Time {
  51  	return time.Unix(int64(ts.Sec), int64(ts.Nsec))
  52  }
  53  
  54  // For testing.
  55  func atime(fi FileInfo) time.Time {
  56  	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
  57  }
  58