From 107f4bcf025e36d687bce63ea93e2e801687b5d7 Mon Sep 17 00:00:00 2001
From: Randall Winkhart <idgr@tutanota.com>
Date: Sat, 5 Apr 2025 00:08:23 -0400
Subject: [PATCH] Add MacOS support

---
 daemon/2server-pidToPath-Darwin.go   | 18 ++++++++++++++++++
 daemon/2server-pidToPath-Readlink.go | 14 ++++++++++++++
 daemon/2server.go                    |  7 -------
 3 files changed, 32 insertions(+), 7 deletions(-)
 create mode 100644 daemon/2server-pidToPath-Darwin.go
 create mode 100644 daemon/2server-pidToPath-Readlink.go

diff --git a/daemon/2server-pidToPath-Darwin.go b/daemon/2server-pidToPath-Darwin.go
new file mode 100644
index 0000000..b52e9e1
--- /dev/null
+++ b/daemon/2server-pidToPath-Darwin.go
@@ -0,0 +1,18 @@
+//go:build darwin
+
+package daemon
+
+import (
+	"os/exec"
+	"strconv"
+	"strings"
+)
+
+// pidToPath returns the path of the executable that has the given PID.
+func pidToPath(pid int) string {
+	pidString := strconv.Itoa(pid)
+	cmd := exec.Command("lsof", "-a", "-dtxt", "-p"+pidString)
+	output, _ := cmd.Output()
+	line := strings.Split(string(output), "\n")[1]
+	return line[strings.Index(line, "/"):]
+}
diff --git a/daemon/2server-pidToPath-Readlink.go b/daemon/2server-pidToPath-Readlink.go
new file mode 100644
index 0000000..e759073
--- /dev/null
+++ b/daemon/2server-pidToPath-Readlink.go
@@ -0,0 +1,14 @@
+//go:build linux || freebsd
+
+package daemon
+
+import (
+	"fmt"
+	"os"
+)
+
+// pidToPath returns the path of the executable that has the given PID.
+func pidToPath(pid int) string {
+	path, _ := os.Readlink(fmt.Sprintf("/proc/%d/"+pidPathFile, pid))
+	return path
+}
diff --git a/daemon/2server.go b/daemon/2server.go
index 042e1e4..efc3935 100644
--- a/daemon/2server.go
+++ b/daemon/2server.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"crypto/sha256"
 	"errors"
-	"fmt"
 	"io"
 	"log"
 	"net"
@@ -97,12 +96,6 @@ func handleConn(conn net.Conn) {
 	}
 }
 
-// pidToPath returns the path of the executable that has the given PID.
-func pidToPath(pid int) string {
-	path, _ := os.Readlink(fmt.Sprintf("/proc/%d/"+pidPathFile, pid))
-	return path
-}
-
 // getFileHash returns the SHA256 hash of the file at the given path.
 func getFileHash(path string) []byte {
 	file, _ := os.Open(path)