Adding upstream version 1.17.13.upstream/1.17.13upstream

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

1 files changed, 28 insertions, 0 deletions

diff --git a/src/crypto/rand/eagain.go b/src/crypto/rand/eagain.go
new file mode 100644
index 0000000..85d4d9d
--- /dev/null
+++ b/src/crypto/rand/eagain.go
@@ -0,0 +1,28 @@
+// Copyright 2014 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.
+
+//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package rand
+
+import (
+	"io/fs"
+	"syscall"
+)
+
+func init() {
+	isEAGAIN = unixIsEAGAIN
+}
+
+// unixIsEAGAIN reports whether err is a syscall.EAGAIN wrapped in a PathError.
+// See golang.org/issue/9205
+func unixIsEAGAIN(err error) bool {
+	if pe, ok := err.(*fs.PathError); ok {
+		if errno, ok := pe.Err.(syscall.Errno); ok && errno == syscall.EAGAIN {
+			return true
+		}
+	}
+	return false
+}