From c81a9a2c885599cdf9f26ba92e0703ac753a0096 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=A5=BA=E5=AD=90w=20=28Yumechi=29?=
 <35571479+eternal-flame-AD@users.noreply.github.com>
Date: Fri, 22 Nov 2024 18:03:58 +0000
Subject: [PATCH]  Set umask=0 when creating unix sockets (#743)

Signed-off-by: eternal-flame-AD <yume@yumechi.jp>
---
 runner/runner.go         | 3 +++
 runner/umask.go          | 7 +++++++
 runner/umask_fallback.go | 7 +++++++
 3 files changed, 17 insertions(+)
 create mode 100644 runner/umask.go
 create mode 100644 runner/umask_fallback.go

diff --git a/runner/runner.go b/runner/runner.go
index 31e33cc7..4ddf1996 100644
--- a/runner/runner.go
+++ b/runner/runner.go
@@ -77,6 +77,9 @@ func startListening(connectionType, listenAddr string, port, keepAlive int) (net
 	network, addr := getNetworkAndAddr(listenAddr, port)
 	lc := net.ListenConfig{KeepAlive: time.Duration(keepAlive) * time.Second}
 
+	oldMask := umask(0)
+	defer umask(oldMask)
+
 	l, err := lc.Listen(context.Background(), network, addr)
 	if err == nil {
 		fmt.Println("Started listening for", connectionType, "on", l.Addr().Network(), l.Addr().String())
diff --git a/runner/umask.go b/runner/umask.go
new file mode 100644
index 00000000..d25d7c76
--- /dev/null
+++ b/runner/umask.go
@@ -0,0 +1,7 @@
+//go:build unix
+
+package runner
+
+import "syscall"
+
+var umask = syscall.Umask
diff --git a/runner/umask_fallback.go b/runner/umask_fallback.go
new file mode 100644
index 00000000..4c5c2fb3
--- /dev/null
+++ b/runner/umask_fallback.go
@@ -0,0 +1,7 @@
+//go:build !unix
+
+package runner
+
+func umask(_ int) int {
+	return 0
+}