dushixiangandClaude Opus 4.7
fe388df67d
pro-bing 在 Windows 上必须 SetPrivileged(true) 走原始套接字，普通账号 没有权限会直接失败。按平台拆分实现：unix 继续走 pro-bing，windows 调 系统 ping 并以 TTL= 作为跨语言锚点解析输出；同时校验 target 防止被 ping.exe 当作 flag 解析。 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
//go:build windows
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package collector
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import (
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"bytes"
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"context"
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"fmt"
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"os/exec"
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"regexp"
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"strconv"
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"syscall"
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"time"
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)
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// "TTL=" 在 Windows ping.exe 各语言版本输出中都保留为英文字面量，
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// 因此用作回包行的锚点比 "Reply from" / "来自" 之类本地化文案更稳妥
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var (
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winPingReplyAnchor = regexp.MustCompile(`(?i)TTL[=:]`)
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winPingTimeRe = regexp.MustCompile(`(?i)[=<]\s*(\d+)\s*ms`)
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)
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func pingHost(target string, count, timeoutSec int) (*pingStats, error) {
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if count <= 0 {
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count = 4
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}
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if timeoutSec <= 0 {
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timeoutSec = 5
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}
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perReplyMs := timeoutSec * 1000
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// 进程级超时取每包超时 × 包数 + 余量；ping 自身在包间还会停 ~1s
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overall := time.Duration(timeoutSec*count+5) * time.Second
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ctx, cancel := context.WithTimeout(context.Background(), overall)
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defer cancel()
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cmd := exec.CommandContext(ctx, "ping",
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"-n", strconv.Itoa(count),
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"-w", strconv.Itoa(perReplyMs),
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target,
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)
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cmd.SysProcAttr = &syscall.SysProcAttr{
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HideWindow: true,
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CreationFlags: 0x08000000, // CREATE_NO_WINDOW，避免在前台 console 下闪窗
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}
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out, runErr := cmd.CombinedOutput()
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if ctx.Err() == context.DeadlineExceeded {
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return nil, fmt.Errorf("ping command timed out after %v", overall)
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}
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if runErr != nil && len(out) == 0 {
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return nil, fmt.Errorf("ping command failed: %w", runErr)
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}
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stats := &pingStats{PacketsSent: count}
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var totalRtt int64
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for _, line := range bytes.Split(out, []byte("\n")) {
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if !winPingReplyAnchor.Match(line) {
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continue
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}
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m := winPingTimeRe.FindSubmatch(line)
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if m == nil {
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continue
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}
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rtt, err := strconv.Atoi(string(m[1]))
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if err != nil {
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continue
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}
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stats.PacketsRecv++
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totalRtt += int64(rtt)
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}
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if stats.PacketsRecv > 0 {
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stats.AvgRttMs = totalRtt / int64(stats.PacketsRecv)
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}
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stats.PacketLoss = float64(stats.PacketsSent-stats.PacketsRecv) * 100 / float64(stats.PacketsSent)
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return stats, nil
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}
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