Brendan LE GLAUNEC
5849898283
Unit tests functional and coverage back to 100% Add more routes to dictionary, add more credentials, add default port 5554, rename cameradar logs ENV variable, improve unit test readability, remove tmp file
95 lines
2.1 KiB
Go
95 lines
2.1 KiB
Go
// +build windows
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// +build !appengine
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package isatty
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import (
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"strings"
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"syscall"
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"unicode/utf16"
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"unsafe"
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)
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const (
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fileNameInfo uintptr = 2
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fileTypePipe = 3
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)
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var (
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kernel32 = syscall.NewLazyDLL("kernel32.dll")
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procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
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procGetFileInformationByHandleEx = kernel32.NewProc("GetFileInformationByHandleEx")
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procGetFileType = kernel32.NewProc("GetFileType")
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)
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func init() {
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// Check if GetFileInformationByHandleEx is available.
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if procGetFileInformationByHandleEx.Find() != nil {
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procGetFileInformationByHandleEx = nil
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}
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}
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// IsTerminal return true if the file descriptor is terminal.
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func IsTerminal(fd uintptr) bool {
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var st uint32
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r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, fd, uintptr(unsafe.Pointer(&st)), 0)
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return r != 0 && e == 0
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}
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// Check pipe name is used for cygwin/msys2 pty.
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// Cygwin/MSYS2 PTY has a name like:
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// \{cygwin,msys}-XXXXXXXXXXXXXXXX-ptyN-{from,to}-master
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func isCygwinPipeName(name string) bool {
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token := strings.Split(name, "-")
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if len(token) < 5 {
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return false
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}
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if token[0] != `\msys` && token[0] != `\cygwin` {
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return false
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}
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if token[1] == "" {
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return false
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}
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if !strings.HasPrefix(token[2], "pty") {
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return false
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}
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if token[3] != `from` && token[3] != `to` {
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return false
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}
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if token[4] != "master" {
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return false
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}
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return true
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}
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// IsCygwinTerminal() return true if the file descriptor is a cygwin or msys2
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// terminal.
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func IsCygwinTerminal(fd uintptr) bool {
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if procGetFileInformationByHandleEx == nil {
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return false
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}
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// Cygwin/msys's pty is a pipe.
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ft, _, e := syscall.Syscall(procGetFileType.Addr(), 1, fd, 0, 0)
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if ft != fileTypePipe || e != 0 {
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return false
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}
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var buf [2 + syscall.MAX_PATH]uint16
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r, _, e := syscall.Syscall6(procGetFileInformationByHandleEx.Addr(),
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4, fd, fileNameInfo, uintptr(unsafe.Pointer(&buf)),
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uintptr(len(buf)*2), 0, 0)
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if r == 0 || e != 0 {
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return false
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}
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l := *(*uint32)(unsafe.Pointer(&buf))
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return isCygwinPipeName(string(utf16.Decode(buf[2 : 2+l/2])))
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}
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