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50 lines
945 B
Go
50 lines
945 B
Go
// Copyright (c) 2017, Andrey Nering <andrey.nering@gmail.com>
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// See LICENSE for licensing information
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// +build !windows
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package interp
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import (
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"os"
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"os/user"
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"strconv"
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"syscall"
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)
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// hasPermissionToDir returns if the OS current user has execute permission
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// to the given directory
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func hasPermissionToDir(info os.FileInfo) bool {
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user, err := user.Current()
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if err != nil {
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return true
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}
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uid, _ := strconv.Atoi(user.Uid)
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// super-user
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if uid == 0 {
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return true
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}
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st, _ := info.Sys().(*syscall.Stat_t)
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if st == nil {
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return true
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}
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perm := info.Mode().Perm()
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// user (u)
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if perm&0100 != 0 && st.Uid == uint32(uid) {
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return true
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}
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gid, _ := strconv.Atoi(user.Gid)
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// other users in group (g)
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if perm&0010 != 0 && st.Uid != uint32(uid) && st.Gid == uint32(gid) {
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return true
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}
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// remaining users (o)
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if perm&0001 != 0 && st.Uid != uint32(uid) && st.Gid != uint32(gid) {
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return true
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}
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return false
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}
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