58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
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// +build windows
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package wrappedreadline
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import (
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"log"
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"os"
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"syscall"
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)
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// getWidth impl for other
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func getWidth() int {
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return 0
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}
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func initPlatform() {
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wrappedStdin = openConsole("CONIN$", os.Stdin)
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wrappedStdout = openConsole("CONOUT$", os.Stdout)
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wrappedStderr = wrappedStdout
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}
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// openConsole opens a console handle, using a backup if it fails.
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// This is used to get the exact console handle instead of the redirected
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// handles from panicwrap.
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func openConsole(name string, backup *os.File) *os.File {
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// Convert to UTF16
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path, err := syscall.UTF16PtrFromString(name)
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if err != nil {
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log.Printf("[ERROR] wrappedstreams: %s", err)
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return backup
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}
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// Determine the share mode
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var shareMode uint32
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switch name {
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case "CONIN$":
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shareMode = syscall.FILE_SHARE_READ
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case "CONOUT$":
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shareMode = syscall.FILE_SHARE_WRITE
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}
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// Get the file
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h, err := syscall.CreateFile(
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path,
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syscall.GENERIC_READ|syscall.GENERIC_WRITE,
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shareMode,
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nil,
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syscall.OPEN_EXISTING,
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0, 0)
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if err != nil {
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log.Printf("[ERROR] wrappedstreams: %s", err)
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return backup
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}
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// Create the Go file
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return os.NewFile(uintptr(h), name)
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}
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