eduard256
27117900eb
Complete architecture rewrite following go2rtc patterns: - pkg/ for pure logic (camdb, tester, probe, generate) - internal/ for application glue with Init() modules - Single HTTP server on :4567 with all endpoints - zerolog with password masking and memory ring buffer - Environment-based config only (no YAML files) API endpoints: /api/search, /api/streams, /api/test, /api/probe, /api/generate, /api/health, /api/log Dependencies: go2rtc v1.9.14, go-sqlite3, miekg/dns, zerolog
36 lines
573 B
Go
36 lines
573 B
Go
package probe
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import (
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"bufio"
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"os"
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"strings"
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)
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// LookupARP reads /proc/net/arp to find MAC address for ip. Linux only.
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func LookupARP(ip string) string {
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file, err := os.Open("/proc/net/arp")
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if err != nil {
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return ""
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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scanner.Scan() // skip header
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for scanner.Scan() {
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fields := strings.Fields(scanner.Text())
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if len(fields) < 4 {
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continue
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}
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if fields[0] == ip {
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mac := fields[3]
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if mac == "00:00:00:00:00:00" {
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return ""
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}
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return strings.ToUpper(mac)
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}
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}
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return ""
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}
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