====== std.net.types ======

Typdefinitionen und Hilfsfunktionen für Socket-Adressen und IP-Adressen. Enthält Strukturen für IPv4 (''SockAddrIn''), IPv6 (''SockAddrIn6''), MAC-Adressen, Ethernet-Header und ARP-Pakete sowie Konvertierungsfunktionen zwischen Host- und Netzwerk-Byte-Order (''Htons''/''Ntohs'') und IP-Adress-Parser für IPv4 und IPv6.

Wird von nahezu allen Netzwerk-Units als gemeinsame Datenbasis importiert und ist selten direkt einzubinden – die höheren Units (''std.net.socket'', ''std.net.http'' etc.) importieren sie automatisch.

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===== Konstanten =====

^ Name ^ Typ ^ Wert ^ Sichtbarkeit ^
| ''AF_INET'' | ''int64'' | ''2'' | pub |
| ''AF_INET6'' | ''int64'' | ''10'' | pub |
| ''SOCK_STREAM'' | ''int64'' | ''1'' | pub |
| ''SOCK_DGRAM'' | ''int64'' | ''2'' | pub |
| ''SOCK_RAW'' | ''int64'' | ''3'' | pub |
| ''IPPROTO_TCP'' | ''int64'' | ''6'' | pub |
| ''IPPROTO_UDP'' | ''int64'' | ''17'' | pub |
| ''IPPROTO_ICMP'' | ''int64'' | ''1'' | pub |
| ''IPPROTO_RAW'' | ''int64'' | ''255'' | pub |
| ''SOL_SOCKET'' | ''int64'' | ''1'' | pub |
| ''SO_REUSEADDR'' | ''int64'' | ''2'' | pub |
| ''TCP_NODELAY'' | ''int64'' | ''1'' | pub |
| ''TCP_KEEPALIVE'' | ''int64'' | ''$10'' | pub |
| ''SO_KEEPALIVE'' | ''int64'' | ''9'' | pub |
| ''SO_RCVBUF'' | ''int64'' | ''8'' | pub |
| ''SO_SNDBUF'' | ''int64'' | ''7'' | pub |
| ''SO_ERROR'' | ''int64'' | ''4'' | pub |
| ''SO_TYPE'' | ''int64'' | ''3'' | pub |
| ''SO_REUSEPORT'' | ''int64'' | ''15'' | pub |
| ''SO_LINGER'' | ''int64'' | ''13'' | pub |
| ''MSG_PEEK'' | ''int64'' | ''2'' | pub |
| ''MSG_DONTWAIT'' | ''int64'' | ''64'' | pub |
| ''PROT_READ'' | ''int64'' | ''1'' | pub |
| ''PROT_WRITE'' | ''int64'' | ''2'' | pub |
| ''PROT_RW'' | ''int64'' | ''3'' | pub |
| ''MAP_ANONYMOUS'' | ''int64'' | ''32'' | pub |
| ''MAP_PRIVATE'' | ''int64'' | ''2'' | pub |
| ''MAP_ANON'' | ''int64'' | ''34'' | pub |
| ''FD_NONE'' | ''int64'' | ''-1'' | pub |
| ''ICMP_ECHO'' | ''int64'' | ''8'' | pub |
| ''ICMP_ECHOREPLY'' | ''int64'' | ''0'' | pub |
| ''ETH_P_IP'' | ''int64'' | ''$0800'' | pub |
| ''ETH_P_ARP'' | ''int64'' | ''$0806'' | pub |
| ''ETH_P_IPV6'' | ''int64'' | ''$86DD'' | pub |
| ''ETH_ALEN'' | ''int64'' | ''6'' | pub |
| ''ARPOP_REQUEST'' | ''int64'' | ''1'' | pub |
| ''ARPOP_REPLY'' | ''int64'' | ''2'' | pub |
| ''ARPOP_RREQUEST'' | ''int64'' | ''3'' | pub |
| ''ARPOP_RREPLY'' | ''int64'' | ''4'' | pub |
| ''ARPOP_INREQUEST'' | ''int64'' | ''8'' | pub |
| ''ARPOP_INREPLY'' | ''int64'' | ''9'' | pub |
| ''ARPOP_NAK'' | ''int64'' | ''10'' | pub |
| ''ARPHRD_ETHER'' | ''int64'' | ''1'' | pub |
| ''UNIX_PATH_MAX'' | ''int64'' | ''108'' | pub |

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===== Typen =====

==== NativeSocket = int64 ====

==== IPAddr (struct) ====

^ Feld ^ Typ ^
| ''family'' | ''int64'' |
| ''a'' | ''uint8'' |
| ''b'' | ''uint8'' |
| ''c'' | ''uint8'' |
| ''d'' | ''uint8'' |
| ''port'' | ''uint16'' |

==== SockAddrIn (struct) ====

^ Feld ^ Typ ^
| ''family'' | ''uint16'' |
| ''port'' | ''uint16'' |
| ''addr'' | ''int64'' |
| ''zero'' | ''int64'' |

==== MacAddr (struct) ====

^ Feld ^ Typ ^
| ''a'' | ''uint8'' |
| ''b'' | ''uint8'' |
| ''c'' | ''uint8'' |
| ''d'' | ''uint8'' |
| ''e'' | ''uint8'' |
| ''f'' | ''uint8'' |

==== EthernetHeader (struct) ====

^ Feld ^ Typ ^
| ''dst'' | ''MacAddr'' |
| ''src'' | ''MacAddr'' |
| ''ethertype'' | ''uint16'' |

==== ARPPacket (struct) ====

^ Feld ^ Typ ^


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===== Funktionen =====

^ Signatur ^ Sichtbarkeit ^ Beschreibung ^
| ''Htons(port: uint16): uint16'' | pub | Konvertiert Port in Netzwerk-Byte-Order |
| ''Ntohs(port: uint16): uint16'' | pub | Konvertiert Port in Host-Byte-Order |
| ''asciiToDigit(c: int64): int64'' | priv | Wandelt ASCII-Zeichen in Dezimalziffer |
| ''parseOctet(s: int64, pos: int64, len: int64, outVal: int64): int64'' | priv | Parst ein IPv4-Oktet aus String |
| ''parsePort(s: int64, pos: int64, len: int64, outPort: int64): int64'' | priv | Parst Portnummer aus String |
| ''ParseIPAddr(s: int64, len: int64): IPAddr'' | pub | Parst IPv4-Adresse aus String |
| ''MakeSockAddr(ip: IPAddr): SockAddrIn'' | pub | Erstellt SockAddrIn aus IPAddr |
| ''SockAddrInCreate(addr: int64, ip: int64, port: int64)'' | pub | Befüllt sockaddr_in-Struktur im Speicher |
| ''TimeValCreate(addr: int64, timeoutMs: int64)'' | pub | Schreibt timeval-Struktur in Speicher |
| ''SockAddrUnCreate(addr: int64, path: int64): int64'' | pub | Befüllt sockaddr_un-Struktur mit Pfad |
| ''IPv6MakeHi(a: int64, b: int64, c: int64, d: int64): int64'' | pub | Packt obere vier IPv6-Gruppen |
| ''IPv6MakeLo(e: int64, f: int64, g: int64, h: int64): int64'' | pub | Packt untere vier IPv6-Gruppen |
| ''IPv6GetGroup(ip6Hi: int64, ip6Lo: int64, i: int64): int64'' | pub | Liest IPv6-Gruppe per Index |
| ''IPv6LoopbackHi(): int64 { return 0; }'' | pub | Gibt obere Hälfte der Loopback-Adresse |
| ''IPv6LoopbackLo(): int64 { return 1; }'' | pub | Gibt untere Hälfte der Loopback-Adresse |
| ''IPv6AnyHi(): int64 { return 0; }'' | pub | Gibt obere Hälfte der Any-Adresse |
| ''IPv6AnyLo(): int64 { return 0; }'' | pub | Gibt untere Hälfte der Any-Adresse |
| ''SockAddrIn6Create(addr: int64, ip6Hi: int64, ip6Lo: int64, port: int64)'' | pub | Befüllt sockaddr_in6-Struktur im Speicher |
| ''hexDigit(c: int64): int64'' | priv | Wandelt Hex-Zeichen in Zahlenwert |
| ''parseIPv6Group(s: int64, pos: int64, len: int64, outVal: int64): int64'' | priv | Parst einzelne IPv6-Gruppe aus String |
| ''ParseIPv6(s: int64, len: int64, outHi: int64, outLo: int64)'' | pub | Parst vollständige IPv6-Adresse |
| ''nibbleToHex(d: int64): int64'' | priv | Wandelt Nibble in Hex-Zeichen |
| ''writeHex16(buf: int64, pos: int64, val: int64): int64'' | priv | Schreibt 16-Bit-Wert als Hex-String |
| ''IPv6Format(ip6Hi: int64, ip6Lo: int64, buf: int64)'' | pub | Formatiert IPv6-Adresse als String |