mirror of
https://github.com/netbirdio/netbird.git
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109 lines
2.2 KiB
Go
109 lines
2.2 KiB
Go
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package freebsd
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import (
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"bufio"
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"fmt"
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"strconv"
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"strings"
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)
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type iface struct {
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Name string
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MTU int
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Group string
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IPAddrs []string
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}
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func parseError(output []byte) error {
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// TODO: implement without allocations
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lines := string(output)
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if strings.Contains(lines, "does not exist") {
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return ErrDoesNotExist
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}
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return nil
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}
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func parseIfconfigOutput(output []byte) (*iface, error) {
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// TODO: implement without allocations
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lines := string(output)
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scanner := bufio.NewScanner(strings.NewReader(lines))
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var name, mtu, group string
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var ips []string
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for scanner.Scan() {
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line := scanner.Text()
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// If line contains ": flags", it's a line with interface information
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if strings.Contains(line, ": flags") {
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parts := strings.Fields(line)
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if len(parts) < 4 {
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return nil, fmt.Errorf("failed to parse line: %s", line)
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}
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name = strings.TrimSuffix(parts[0], ":")
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if strings.Contains(line, "mtu") {
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mtuIndex := 0
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for i, part := range parts {
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if part == "mtu" {
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mtuIndex = i
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break
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}
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}
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mtu = parts[mtuIndex+1]
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}
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}
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// If line contains "groups:", it's a line with interface group
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if strings.Contains(line, "groups:") {
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parts := strings.Fields(line)
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if len(parts) < 2 {
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return nil, fmt.Errorf("failed to parse line: %s", line)
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}
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group = parts[1]
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}
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// If line contains "inet ", it's a line with IP address
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if strings.Contains(line, "inet ") {
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parts := strings.Fields(line)
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if len(parts) < 2 {
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return nil, fmt.Errorf("failed to parse line: %s", line)
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}
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ips = append(ips, parts[1])
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}
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}
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if name == "" {
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return nil, fmt.Errorf("interface name not found in ifconfig output")
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}
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mtuInt, err := strconv.Atoi(mtu)
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if err != nil {
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return nil, fmt.Errorf("failed to parse MTU: %w", err)
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}
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return &iface{
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Name: name,
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MTU: mtuInt,
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Group: group,
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IPAddrs: ips,
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}, nil
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}
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func parseIFName(output []byte) (string, error) {
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// TODO: implement without allocations
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lines := strings.Split(string(output), "\n")
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if len(lines) == 0 || lines[0] == "" {
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return "", fmt.Errorf("no output returned")
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}
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fields := strings.Fields(lines[0])
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if len(fields) > 1 {
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return "", fmt.Errorf("invalid output")
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}
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return fields[0], nil
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}
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