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fix: Add -nn flag to tcpdump commands to resolve macOS capture issues

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This commit is contained in:
Jose Luis Montañes Ojados
2026-01-19 15:26:01 +01:00
parent 854cf926ed
commit b8984f25a0
2 changed files with 4 additions and 2 deletions
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3
internal/capture/capturer.go
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@@ -55,7 +55,8 @@ func (c *Capturer) Start(iface string, port int) error {
// -l: line buffered for real-time output // -l: line buffered for real-time output
// -A: print packet payload in ASCII // -A: print packet payload in ASCII
// -s 0: capture full packets // -s 0: capture full packets
cmd := fmt.Sprintf("sudo tcpdump -l -A -s 0 -i %s port %d 2>/dev/null", iface, port) // -nn: don't resolve hostnames or port names
cmd := fmt.Sprintf("sudo tcpdump -l -nn -A -s 0 -i %s port %d 2>/dev/null", iface, port)
stdout, stderr, cleanup, err := c.sshClient.StartCommand(cmd) stdout, stderr, cleanup, err := c.sshClient.StartCommand(cmd)
if err != nil { if err != nil {

3
internal/capture/local.go
View File

@@ -46,7 +46,8 @@ func (c *LocalCapturer) Start(iface string, port int) error {
// -l: line buffered // -l: line buffered
// -A: print packet payload in ASCII // -A: print packet payload in ASCII
// -s 0: capture full packets // -s 0: capture full packets
args := []string{"-l", "-A", "-s", "0", "-i", iface, "port", fmt.Sprintf("%d", port)} // -nn: don't resolve hostnames or port names
args := []string{"-l", "-nn", "-A", "-s", "0", "-i", iface, "port", fmt.Sprintf("%d", port)}
c.cmd = exec.CommandContext(ctx, "tcpdump", args...) c.cmd = exec.CommandContext(ctx, "tcpdump", args...)
stdout, err := c.cmd.StdoutPipe() stdout, err := c.cmd.StdoutPipe()