mirror of
https://github.com/bettercap/bettercap
synced 2025-07-07 05:22:04 -07:00
38 lines
709 B
Go
38 lines
709 B
Go
package net
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import (
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"github.com/evilsocket/bettercap-ng/core"
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"strings"
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)
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func ArpUpdate(iface string) (ArpTable, error) {
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arp_lock.Lock()
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defer arp_lock.Unlock()
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// Signal we parsed the ARP table at least once.
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arp_parsed = true
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// Run "arp -an" and parse the output.
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output, err := core.Exec("arp", []string{"-a", "-n"})
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if err != nil {
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return arp_table, err
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}
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new_table := make(ArpTable)
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for _, line := range strings.Split(output, "\n") {
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m := ArpTableParser.FindStringSubmatch(line)
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if len(m) == ArpTableTokens {
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address := m[1]
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mac := m[2]
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ifname := m[3]
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if ifname == iface {
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new_table[address] = mac
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}
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}
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}
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arp_table = new_table
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return arp_table, nil
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}
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