Vincent Batts
08b1000418
The current Vis() and Unvis() are using the C implementation from MTREE(8). But that means that cgo is used, which is not always desired. Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
22 lines
526 B
Go
22 lines
526 B
Go
package cvis
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// #include "vis.h"
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// #include <stdlib.h>
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import "C"
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import (
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"fmt"
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"unsafe"
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)
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// Unvis decodes the Vis() string encoding
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func Unvis(src string) (string, error) {
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cDst, cSrc := C.CString(string(make([]byte, len(src)+1))), C.CString(src)
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defer C.free(unsafe.Pointer(cDst))
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defer C.free(unsafe.Pointer(cSrc))
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ret := C.strunvis(cDst, cSrc)
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// TODO(vbatts) this needs to be confirmed against UnvisError
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if ret == -1 {
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return "", fmt.Errorf("failed to decode: %q", src)
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}
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return C.GoString(cDst), nil
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}
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