Adding upstream version 1.21.8.upstream/1.21.8

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

1 files changed, 31 insertions, 0 deletions

diff --git a/src/os/file_open_wasip1.go b/src/os/file_open_wasip1.go
new file mode 100644
index 0000000..f3ef165
--- /dev/null
+++ b/src/os/file_open_wasip1.go
@@ -0,0 +1,31 @@
+// Copyright 2023 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 wasip1
+
+package os
+
+import (
+	"internal/poll"
+	"syscall"
+)
+
+func open(filePath string, flag int, perm uint32) (int, poll.SysFile, error) {
+	if filePath == "" {
+		return -1, poll.SysFile{}, syscall.EINVAL
+	}
+	absPath := filePath
+	// os.(*File).Chdir is emulated by setting the working directory to the
+	// absolute path that this file was opened at, which is why we have to
+	// resolve and capture it here.
+	if filePath[0] != '/' {
+		wd, err := syscall.Getwd()
+		if err != nil {
+			return -1, poll.SysFile{}, err
+		}
+		absPath = joinPath(wd, filePath)
+	}
+	fd, err := syscall.Open(absPath, flag, perm)
+	return fd, poll.SysFile{Path: absPath}, err
+}