Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/os/exec/exec_plan9.go b/src/os/exec/exec_plan9.go
new file mode 100644
index 0000000..8920bec
--- /dev/null
+++ b/src/os/exec/exec_plan9.go
@@ -0,0 +1,19 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package exec
+
+import "io/fs"
+
+// skipStdinCopyError optionally specifies a function which reports
+// whether the provided stdin copy error should be ignored.
+func skipStdinCopyError(err error) bool {
+	// Ignore hungup errors copying to stdin if the program
+	// completed successfully otherwise.
+	// See Issue 35753.
+	pe, ok := err.(*fs.PathError)
+	return ok &&
+		pe.Op == "write" && pe.Path == "|1" &&
+		pe.Err.Error() == "i/o on hungup channel"
+}