mirror of
https://github.com/daeuniverse/dae.git
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51 lines
952 B
Go
51 lines
952 B
Go
/*
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* SPDX-License-Identifier: AGPL-3.0-only
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* Copyright (c) 2022-2024, daeuniverse Organization <dae@v2raya.org>
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*/
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package trace
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import (
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"encoding/binary"
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"strings"
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)
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func Htons(x uint16) uint16 {
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data := make([]byte, 2)
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nativeEndian.PutUint16(data, x)
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return binary.BigEndian.Uint16(data)
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}
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func Ntohs(x uint16) uint16 {
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data := make([]byte, 2)
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binary.BigEndian.PutUint16(data, x)
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return nativeEndian.Uint16(data)
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}
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func TrimNull(s string) string {
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return strings.TrimRight(s, "\x00")
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}
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func TcpFlags(data uint8) string {
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flags := []string{}
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if data&0b00100000 != 0 {
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flags = append(flags, "U")
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}
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if data&0b00010000 != 0 {
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flags = append(flags, ".")
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}
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if data&0b00001000 != 0 {
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flags = append(flags, "P")
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}
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if data&0b00000100 != 0 {
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flags = append(flags, "R")
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}
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if data&0b00000010 != 0 {
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flags = append(flags, "S")
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}
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if data&0b00000001 != 0 {
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flags = append(flags, "F")
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}
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return strings.Join(flags, "")
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}
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