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authorWim <wim@42.be>2020-01-09 21:02:56 +0100
committerGitHub <noreply@github.com>2020-01-09 21:02:56 +0100
commit0f708daf2d14dcca261ef98cc698a1b1f2a6aa74 (patch)
tree022eee21366d6a9a00feaeff918972d9e72632c2 /vendor/github.com/mattn/go-isatty/isatty_windows.go
parentb9354de8fd5e424ac2f246fff1a03b27e8094fd8 (diff)
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Update dependencies (#975)
Diffstat (limited to 'vendor/github.com/mattn/go-isatty/isatty_windows.go')
-rw-r--r--vendor/github.com/mattn/go-isatty/isatty_windows.go39
1 files changed, 35 insertions, 4 deletions
diff --git a/vendor/github.com/mattn/go-isatty/isatty_windows.go b/vendor/github.com/mattn/go-isatty/isatty_windows.go
index af51cbca..1fa86915 100644
--- a/vendor/github.com/mattn/go-isatty/isatty_windows.go
+++ b/vendor/github.com/mattn/go-isatty/isatty_windows.go
@@ -4,6 +4,7 @@
package isatty
import (
+ "errors"
"strings"
"syscall"
"unicode/utf16"
@@ -11,15 +12,18 @@ import (
)
const (
- fileNameInfo uintptr = 2
- fileTypePipe = 3
+ objectNameInfo uintptr = 1
+ fileNameInfo = 2
+ fileTypePipe = 3
)
var (
kernel32 = syscall.NewLazyDLL("kernel32.dll")
+ ntdll = syscall.NewLazyDLL("ntdll.dll")
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
procGetFileInformationByHandleEx = kernel32.NewProc("GetFileInformationByHandleEx")
procGetFileType = kernel32.NewProc("GetFileType")
+ procNtQueryObject = ntdll.NewProc("NtQueryObject")
)
func init() {
@@ -45,7 +49,10 @@ func isCygwinPipeName(name string) bool {
return false
}
- if token[0] != `\msys` && token[0] != `\cygwin` {
+ if token[0] != `\msys` &&
+ token[0] != `\cygwin` &&
+ token[0] != `\Device\NamedPipe\msys` &&
+ token[0] != `\Device\NamedPipe\cygwin` {
return false
}
@@ -68,11 +75,35 @@ func isCygwinPipeName(name string) bool {
return true
}
+// getFileNameByHandle use the undocomented ntdll NtQueryObject to get file full name from file handler
+// since GetFileInformationByHandleEx is not avilable under windows Vista and still some old fashion
+// guys are using Windows XP, this is a workaround for those guys, it will also work on system from
+// Windows vista to 10
+// see https://stackoverflow.com/a/18792477 for details
+func getFileNameByHandle(fd uintptr) (string, error) {
+ if procNtQueryObject == nil {
+ return "", errors.New("ntdll.dll: NtQueryObject not supported")
+ }
+
+ var buf [4 + syscall.MAX_PATH]uint16
+ var result int
+ r, _, e := syscall.Syscall6(procNtQueryObject.Addr(), 5,
+ fd, objectNameInfo, uintptr(unsafe.Pointer(&buf)), uintptr(2*len(buf)), uintptr(unsafe.Pointer(&result)), 0)
+ if r != 0 {
+ return "", e
+ }
+ return string(utf16.Decode(buf[4 : 4+buf[0]/2])), nil
+}
+
// IsCygwinTerminal() return true if the file descriptor is a cygwin or msys2
// terminal.
func IsCygwinTerminal(fd uintptr) bool {
if procGetFileInformationByHandleEx == nil {
- return false
+ name, err := getFileNameByHandle(fd)
+ if err != nil {
+ return false
+ }
+ return isCygwinPipeName(name)
}
// Cygwin/msys's pty is a pipe.