diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/netinet')
| -rw-r--r-- | sysdeps/unix/sysv/linux/netinet/in.h | 147 |
1 files changed, 114 insertions, 33 deletions
diff --git a/sysdeps/unix/sysv/linux/netinet/in.h b/sysdeps/unix/sysv/linux/netinet/in.h index 91c88835db..3dea878a21 100644 --- a/sysdeps/unix/sysv/linux/netinet/in.h +++ b/sysdeps/unix/sysv/linux/netinet/in.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc. +/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify @@ -23,14 +23,25 @@ #include <sys/socket.h> -__BEGIN_DECLS -#include <linux/in.h> -__END_DECLS -/* Standard well-known ports. The use of these constants is - deprecated. Instead use the contents of the file `/etc/services' - or similar databases by using the function getservbyname and - getservbyport. */ +/* Standard well-defined IP protocols. */ +enum + { + IPPROTO_IP = 0, /* Dummy protocol for TCP. */ + IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */ + IPPROTO_IGMP = 2, /* Internet Group 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. */ @@ -71,50 +82,120 @@ enum }; -/* Link numbers. */ -#define IMPLINK_IP 155 -#define IMPLINK_LOWEXPER 156 -#define IMPLINK_HIGHEXPER 158 +/* Internet address. */ +struct in_addr + { + unsigned int s_addr; + }; + + +/* 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) ((((unsigned) (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) ((((unsigned) (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) ((((unsigned) (a)) & 0xc0000000) == 0xc0000000) +#define IN_CLASSC_NET 0xffffff00 +#define IN_CLASSC_NSHIFT 8 +#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) + +#define IN_CLASSD(a) ((((unsigned) (a)) & 0xf0000000) == 0xe0000000) +#define IN_MULTICAST(a) IN_CLASSD(a) + +#define IN_EXPERIMENTAL(a) ((((unsigned) (a)) & 0xe0000000) == 0xe0000000) +#define IN_BADCLASS(a) ((((unsigned) (a)) & 0xf0000000) == 0xf0000000) + +/* Address to accept any incoming messages. */ +#define INADDR_ANY ((unsigned) 0x00000000) +/* Address to send to all hosts. */ +#define INADDR_BROADCAST ((unsigned) 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. */ +#ifndef INADDR_LOOPBACK +#define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */ +#endif + /* Get the definition of the macro to define the common sockaddr members. */ #include <sockaddrcom.h> -/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS. - The `ip_dst' field is used for the first-hop gateway when using a - source route (this gets put into the header proper). */ + +/* Structure describing an Internet socket address. */ +struct sockaddr_in + { + __SOCKADDR_COMMON (sin_); + unsigned short int sin_port; /* Port number. */ + struct in_addr sin_addr; /* Internet address. */ + + /* Pad to size of `struct sockaddr'. */ + unsigned char sin_zero[sizeof(struct sockaddr) - + __SOCKADDR_COMMON_SIZE - + sizeof(unsigned short int) - + sizeof(struct in_addr)]; + }; + + +/* Options for use with `getsockopt' and `setsockopt' at the IP level. + The first word in the comment at the right is the data type used; + "bool" means a boolean value stored in an `int'. */ +#define IP_TOS 1 /* int; IP type of service and precedence. */ +#define IP_TTL 2 /* int; IP time to live. */ +#define IP_HDRINCL 3 /* int; Header is included with data. */ +#define IP_OPTIONS 4 /* ip_opts; IP per-packet options. */ +#define IP_MULTICAST_IF 32 /* in_addr; set/get IP multicast i/f */ +#define IP_MULTICAST_TTL 33 /* u_char; set/get IP multicast ttl */ +#define IP_MULTICAST_LOOP 34 /* i_char; set/get IP multicast loopback */ +#define IP_ADD_MEMBERSHIP 35 /* ip_mreq; add an IP group membership */ +#define IP_DROP_MEMBERSHIP 36 /* ip_mreq; drop an IP group membership */ + +/* Structure used to describe IP options for IP_OPTIONS. The `ip_dst' + field is used for the first-hop gateway when using a source route + (this gets put into the header proper). */ struct ip_opts { struct in_addr ip_dst; /* First hop; zero without source route. */ char ip_opts[40]; /* Actually variable in size. */ }; -__BEGIN_DECLS +/* Structure used 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 */ + }; /* Functions to convert between host and network byte order. */ -extern unsigned long int ntohl __P ((unsigned long int __long_word)); -extern unsigned short int ntohs __P ((unsigned short int __short_word)); -extern unsigned long int htonl __P ((unsigned long int __long_word)); -extern unsigned short int htons __P ((unsigned short int __short_word)); - -/* Bind socket FD to a privileged IP address SIN. */ -extern int bindresvport __P ((int __fd, struct sockaddr_in * __sock_in)); - -__END_DECLS +extern unsigned long int ntohl __P ((unsigned long int)); +extern unsigned short int ntohs __P ((unsigned short int)); +extern unsigned long int htonl __P ((unsigned long int)); +extern unsigned short int htons __P ((unsigned short int)); #include <endian.h> #if __BYTE_ORDER == __BIG_ENDIAN /* The host byte order is the same as network byte order, so these functions are all just identity. */ -# undef ntohl -# define ntohl(x) (x) -# undef ntohs -# define ntohs(x) (x) -# undef htonl -# define htonl(x) (x) -# undef htons -# define htons(x) (x) +#define ntohl(x) (x) +#define ntohs(x) (x) +#define htonl(x) (x) +#define htons(x) (x) #endif #endif /* netinet/in.h */ |