/* * libsocket - BSD socket like library for DJGPP * Copyright 1997, 1998 by Indrek Mandre * Copyright 1997-2000 by Richard Dawe * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Library General Public License as published * by the Free Software Foundation; either version 2 of the License, or (at * your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* * RD: Constructed by comparison with netinet/in.h from Cygwin beta 20.1. * Made all functions externs. */ #ifndef _NETINET_IN_H #define _NETINET_IN_H #ifndef __libsocket_netinet_in_h__ #define __libsocket_netinet_in_h__ #include #ifdef __cplusplus extern "C" { #endif enum { IPPROTO_IP = 0, /* Dummy protocol for TCP */ IPPROTO_ICMP = 1, /* Internet Control Message Protocol */ IPPROTO_IGMP = 2, /* Internet Gateway Management Protocol */ IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94) */ IPPROTO_TCP = 6, /* Transmission Control Protocol */ IPPROTO_EGP = 8, /* Exterior Gateway Protocol */ IPPROTO_PUP = 12, /* PUP protocol */ IPPROTO_UDP = 17, /* User Datagram Protocol */ IPPROTO_IDP = 22, /* XNS IDP protocol */ IPPROTO_RAW = 255, /* Raw IP packets */ IPPROTO_MAX }; /* Standard well-known ports. */ enum { IPPORT_ECHO = 7, /* Echo service. */ IPPORT_DISCARD = 9, /* Discard transmissions service. */ IPPORT_SYSTAT = 11, /* System status service. */ IPPORT_DAYTIME = 13, /* Time of day service. */ IPPORT_NETSTAT = 15, /* Network status service. */ IPPORT_FTP = 21, /* File Transfer Protocol. */ IPPORT_TELNET = 23, /* Telnet protocol. */ IPPORT_SMTP = 25, /* Simple Mail Transfer Protocol. */ IPPORT_TIMESERVER = 37, /* Timeserver service. */ IPPORT_NAMESERVER = 42, /* Domain Name Service. */ IPPORT_WHOIS = 43, /* Internet Whois service. */ IPPORT_MTP = 57, IPPORT_TFTP = 69, /* Trivial File Transfer Protocol. */ IPPORT_RJE = 77, IPPORT_FINGER = 79, /* Finger service. */ IPPORT_TTYLINK = 87, IPPORT_SUPDUP = 95, /* SUPDUP protocol. */ IPPORT_EXECSERVER = 512, /* execd service. */ IPPORT_LOGINSERVER = 513, /* rlogind service. */ IPPORT_CMDSERVER = 514, IPPORT_EFSSERVER = 520, /* UDP ports. */ IPPORT_BIFFUDP = 512, IPPORT_WHOSERVER = 513, IPPORT_ROUTESERVER = 520, /* Ports less than this value are reserved for privileged processes. */ IPPORT_RESERVED = 1024, /* Ports greater this value are reserved for (non-privileged) servers. */ IPPORT_USERRESERVED = 5000 }; /* Fundamental Internet types */ #ifndef __libsocket_in_port_t typedef unsigned short in_port_t; #define __libsocket_in_port_t #endif /* __libsocket_in_port_t */ #ifndef __libsocket_in_addr_t typedef unsigned long in_addr_t; #define __libsocket_in_addr_t #endif /* __libsocket_in_addr_t */ #ifndef __libsocket_sa_family_t typedef unsigned short sa_family_t; #define __libsocket_sa_family_t #endif /* __libsocket_sa_family_t */ /* Internet address. */ #ifndef __libsocket_in_addr #define __libsocket_in_addr struct in_addr { in_addr_t s_addr __attribute__((packed)); }; #endif /* __libsocket_in_addr */ /* Structure describing an Internet (IP) socket address. */ #define __SOCK_SIZE__ 16 /* sizeof(struct sockaddr) */ struct sockaddr_in { sa_family_t sin_family __attribute__((packed)); /* Address family */ in_port_t sin_port __attribute__((packed)); /* Port number */ struct in_addr sin_addr __attribute__((packed)); /* Internet addr. */ /* Pad to size of `struct sockaddr'. */ unsigned char __pad[__SOCK_SIZE__ - sizeof(sa_family_t) - sizeof(in_port_t) - sizeof(struct in_addr)] __attribute__((packed)); }; /* RD: Pack it for transmission/usage! */ #define sin_zero __pad /* for BSD UNIX comp. -FvK */ /* * Definitions of the bits in an Internet address integer. * On subnets, host and network parts are found according * to the subnet mask, not these masks. */ #define IN_CLASSA(a) ((((long int) (a)) & 0x80000000) == 0) #define IN_CLASSA_NET 0xff000000 #define IN_CLASSA_NSHIFT 24 #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) #define IN_CLASSA_MAX 128 #define IN_CLASSB(a) ((((long int) (a)) & 0xc0000000) == 0x80000000) #define IN_CLASSB_NET 0xffff0000 #define IN_CLASSB_NSHIFT 16 #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) #define IN_CLASSB_MAX 65536 #define IN_CLASSC(a) ((((long int) (a)) & 0xe0000000) == 0xc0000000) #define IN_CLASSC_NET 0xffffff00 #define IN_CLASSC_NSHIFT 8 #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) #define IN_CLASSD(a) ((((long int) (a)) & 0xf0000000) == 0xe0000000) #define IN_MULTICAST(a) IN_CLASSD(a) #define IN_MULTICAST_NET 0xF0000000 #define IN_EXPERIMENTAL(a) ((((long int) (a)) & 0xe0000000) == 0xe0000000) #define IN_BADCLASS(a) ((((long int) (a)) & 0xf0000000) == 0xf0000000) /* Address to accept any incoming messages. */ #define INADDR_ANY ((unsigned long int) 0x00000000) /* Address to send to all hosts. */ #define INADDR_BROADCAST ((unsigned long int) 0xffffffff) /* Address indicating an error return. */ #define INADDR_NONE 0xffffffff /* Network number for local host loopback. */ #define IN_LOOPBACKNET 127 /* Address to loopback in software to local host. */ #define INADDR_LOOPBACK 0x7f000001 /* 127.0.0.1 */ #define IN_LOOPBACK(a) ((((long int) (a)) & 0xff000000) == 0x7f000000) /* Defines for Multicast INADDR */ #define INADDR_UNSPEC_GROUP 0xe0000000 /* 224.0.0.0 */ #define INADDR_ALLHOSTS_GROUP 0xe0000001 /* 224.0.0.1 */ #define INADDR_MAX_LOCAL_GROUP 0xe00000ff /* 224.0.0.255 */ /* * Structure used to describe IP options. * Used to store options internally, to pass them to a process, * or to restore options retrieved earlier. * The ip_dst is used for the first-hop gateway when using a source route * (this gets put into the header proper). */ /* Ugly hack for g++ 2.95.x */ #if defined(__cplusplus) && defined(__GNUC__) && defined(__GNUC_MINOR__) #if (__GNUC__ == 2) && (__GNUC_MINOR__ == 95) #define __libsocket_netinet_in_ugly_hack__ #endif /* (__GNUC__ == 2) && (__GNUC_MINOR__ == 95) */ #endif /* __cplusplus && __GNUC__ && __GNUC_MINOR__ */ #ifndef __libsocket_netinet_in_ugly_hack__ struct ip_opts { struct in_addr ip_dst; /* first hop, 0 w/o src rt */ char ip_opts[40]; /* actually variable in size */ }; #else /* !__libsocket_netinet_in_ugly_hack__ */ #warning struct ip_opts not defined as work-around for g++ 2.95.x bug #endif /* __libsocket_netinet_in_ugly_hack__ */ #undef __libsocket_netinet_in_ugly_hack__ /* * Options for use with [gs]etsockopt at the IP level. * First word of comment is data type; bool is stored in int. */ #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ #define IP_HDRINCL 2 /* int; header is included with data */ #define IP_TOS 3 /* int; IP type of service and preced. */ #define IP_TTL 4 /* int; IP time to live */ #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ #define IP_MULTICAST_IF 9 /* u_char; set/get IP multicast i/f */ #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ #define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */ #define IP_RSVP_ON 15 /* enable RSVP in kernel */ #define IP_RSVP_OFF 16 /* disable RSVP in kernel */ #define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ #define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ #define IP_PORTRANGE 19 /* int; range to choose for unspec port */ #define IP_RECVIF 20 /* bool; receive reception if w/dgram */ #define IP_FW_ADD 50 /* add a firewall rule to chain */ #define IP_FW_DEL 51 /* delete a firewall rule from chain */ #define IP_FW_FLUSH 52 /* flush firewall rule chain */ #define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */ #define IP_FW_GET 54 /* get entire firewall rule chain */ #define IP_NAT 55 /* set/get NAT opts */ /* * Defaults and limits for options */ #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ #define IP_MAX_MEMBERSHIPS 20 /* per socket */ /* * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. */ struct ip_mreq { struct in_addr imr_multiaddr; /* IP multicast address of group */ struct in_addr imr_interface; /* local IP address of interface */ }; /* * Argument for IP_PORTRANGE: * - which range to search when port is unspecified at bind() or connect() */ #define IP_PORTRANGE_DEFAULT 0 /* default range */ #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ /* Constants to help with inet_pton(), inet_ntop(). */ #define INET_ADDRSTRLEN 16 #define INET6_ADDRSTRLEN 46 /* Bind a socket to a privileged IP port */ extern int bindresvport (int __sockfd, struct sockaddr_in *sin); /* Byte-order conversions */ extern unsigned long htonl(unsigned long _val); extern unsigned long ntohl(unsigned long _val); extern unsigned short htons(unsigned short _val); extern unsigned short ntohs(unsigned short _val); #ifdef __cplusplus } #endif #endif /* __libsocket_netinet_in_h__ */ #endif /* _NETINET_IN_H */