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//go:build windows
package main
import (
"log"
"os"
"os/exec"
"strconv"
"time"
)
func killPrevious() {
myPID := os.Getpid()
log.Printf("killing previous instances (my PID: %d)", myPID)
// Kill other vpnem.exe processes (not ourselves)
// Use WMIC to find PIDs, then taskkill each except ours
out, _ := exec.Command("wmic", "process", "where",
"name='vpnem.exe'", "get", "processid", "/format:list").Output()
for _, line := range splitLines(string(out)) {
if len(line) > 10 && line[:10] == "ProcessId=" {
pidStr := line[10:]
pid, err := strconv.Atoi(pidStr)
if err == nil && pid != myPID {
log.Printf("killing old vpnem.exe PID %d", pid)
exec.Command("taskkill", "/F", "/PID", strconv.Itoa(pid)).Run()
}
}
}
// Kill any orphaned sing-box.exe
exec.Command("taskkill", "/F", "/IM", "sing-box.exe").Run()
time.Sleep(500 * time.Millisecond)
}
func splitLines(s string) []string {
var lines []string
start := 0
for i := 0; i < len(s); i++ {
if s[i] == '\n' || s[i] == '\r' {
line := s[start:i]
if len(line) > 0 && line[len(line)-1] == '\r' {
line = line[:len(line)-1]
}
if line != "" {
lines = append(lines, line)
}
start = i + 1
}
}
if start < len(s) {
lines = append(lines, s[start:])
}
return lines
}
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