50 lines
905 B
Go
50 lines
905 B
Go
package perflib
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import (
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"encoding/binary"
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"io"
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"syscall"
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)
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// readUTF16StringAtPos Read an unterminated UTF16 string at a given position, specifying its length
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func readUTF16StringAtPos(r io.ReadSeeker, absPos int64, length uint32) (string, error) {
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value := make([]uint16, length/2)
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_, err := r.Seek(absPos, io.SeekStart)
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if err != nil {
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return "", err
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}
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err = binary.Read(r, bo, value)
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if err != nil {
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return "", err
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}
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return syscall.UTF16ToString(value), nil
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}
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// readUTF16String Reads a null-terminated UTF16 string at the current offset
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func readUTF16String(r io.Reader) (string, error) {
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var err error
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b := make([]byte, 2)
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out := make([]uint16, 0, 100)
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for i := 0; err == nil; i += 2 {
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_, err = r.Read(b)
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if b[0] == 0 && b[1] == 0 {
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break
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}
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out = append(out, bo.Uint16(b))
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}
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if err != nil {
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return "", err
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}
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return syscall.UTF16ToString(out), nil
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}
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