Gibheer
fa05045d31
This is the import from the separate monfront repository. The history could not be imported, but this should suffice.
43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package unix
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import (
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"syscall"
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"unsafe"
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)
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// Unveil implements the unveil syscall.
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// For more information see unveil(2).
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// Note that the special case of blocking further
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// unveil calls is handled by UnveilBlock.
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func Unveil(path string, flags string) error {
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pathPtr, err := syscall.BytePtrFromString(path)
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if err != nil {
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return err
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}
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flagsPtr, err := syscall.BytePtrFromString(flags)
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if err != nil {
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return err
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}
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_, _, e := syscall.Syscall(SYS_UNVEIL, uintptr(unsafe.Pointer(pathPtr)), uintptr(unsafe.Pointer(flagsPtr)), 0)
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if e != 0 {
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return e
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}
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return nil
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}
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// UnveilBlock blocks future unveil calls.
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// For more information see unveil(2).
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func UnveilBlock() error {
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// Both pointers must be nil.
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var pathUnsafe, flagsUnsafe unsafe.Pointer
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_, _, e := syscall.Syscall(SYS_UNVEIL, uintptr(pathUnsafe), uintptr(flagsUnsafe), 0)
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if e != 0 {
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return e
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}
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return nil
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}
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