feat: create standalone native fnOS repository

app-src/internal/frp/process_probe_unix.go

@@ -0,0 +1,25 @@
+//go:build linux || darwin || freebsd
+
+package frp
+
+import (
+	"os"
+	"os/exec"
+	"strconv"
+	"strings"
+)
+
+func probeProcess(pid int) (bool, string) {
+	if pid <= 0 {
+		return false, ""
+	}
+	if data, err := os.ReadFile("/proc/" + strconv.Itoa(pid) + "/cmdline"); err == nil {
+		commandLine := strings.ReplaceAll(string(data), "\x00", " ")
+		return strings.TrimSpace(commandLine) != "", strings.TrimSpace(commandLine)
+	}
+	output, err := exec.Command("ps", "-p", strconv.Itoa(pid), "-o", "command=").Output()
+	if err != nil {
+		return false, ""
+	}
+	return strings.TrimSpace(string(output)) != "", strings.TrimSpace(string(output))
+}