--- /dev/null
+/* Copyright (C) 1991-2018 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 it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _NETINET_IN_H
+#define _NETINET_IN_H 1
+
+#include <features.h>
+#include <bits/stdint-uintn.h>
+#include <sys/socket.h>
+#include <bits/types.h>
+
+
+__BEGIN_DECLS
+
+/* Internet address. */
+typedef uint32_t in_addr_t;
+struct in_addr
+ {
+ in_addr_t s_addr;
+ };
+
+/* Get system-specific definitions. */
+#include <bits/in.h>
+
+/* Standard well-defined IP protocols. */
+enum
+ {
+ IPPROTO_IP = 0, /* Dummy protocol for TCP. */
+#define IPPROTO_IP IPPROTO_IP
+ IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */
+#define IPPROTO_ICMP IPPROTO_ICMP
+ IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */
+#define IPPROTO_IGMP IPPROTO_IGMP
+ IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */
+#define IPPROTO_IPIP IPPROTO_IPIP
+ IPPROTO_TCP = 6, /* Transmission Control Protocol. */
+#define IPPROTO_TCP IPPROTO_TCP
+ IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */
+#define IPPROTO_EGP IPPROTO_EGP
+ IPPROTO_PUP = 12, /* PUP protocol. */
+#define IPPROTO_PUP IPPROTO_PUP
+ IPPROTO_UDP = 17, /* User Datagram Protocol. */
+#define IPPROTO_UDP IPPROTO_UDP
+ IPPROTO_IDP = 22, /* XNS IDP protocol. */
+#define IPPROTO_IDP IPPROTO_IDP
+ IPPROTO_TP = 29, /* SO Transport Protocol Class 4. */
+#define IPPROTO_TP IPPROTO_TP
+ IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol. */
+#define IPPROTO_DCCP IPPROTO_DCCP
+ IPPROTO_IPV6 = 41, /* IPv6 header. */
+#define IPPROTO_IPV6 IPPROTO_IPV6
+ IPPROTO_RSVP = 46, /* Reservation Protocol. */
+#define IPPROTO_RSVP IPPROTO_RSVP
+ IPPROTO_GRE = 47, /* General Routing Encapsulation. */
+#define IPPROTO_GRE IPPROTO_GRE
+ IPPROTO_ESP = 50, /* encapsulating security payload. */
+#define IPPROTO_ESP IPPROTO_ESP
+ IPPROTO_AH = 51, /* authentication header. */
+#define IPPROTO_AH IPPROTO_AH
+ IPPROTO_MTP = 92, /* Multicast Transport Protocol. */
+#define IPPROTO_MTP IPPROTO_MTP
+ IPPROTO_BEETPH = 94, /* IP option pseudo header for BEET. */
+#define IPPROTO_BEETPH IPPROTO_BEETPH
+ IPPROTO_ENCAP = 98, /* Encapsulation Header. */
+#define IPPROTO_ENCAP IPPROTO_ENCAP
+ IPPROTO_PIM = 103, /* Protocol Independent Multicast. */
+#define IPPROTO_PIM IPPROTO_PIM
+ IPPROTO_COMP = 108, /* Compression Header Protocol. */
+#define IPPROTO_COMP IPPROTO_COMP
+ IPPROTO_SCTP = 132, /* Stream Control Transmission Protocol. */
+#define IPPROTO_SCTP IPPROTO_SCTP
+ IPPROTO_UDPLITE = 136, /* UDP-Lite protocol. */
+#define IPPROTO_UDPLITE IPPROTO_UDPLITE
+ IPPROTO_MPLS = 137, /* MPLS in IP. */
+#define IPPROTO_MPLS IPPROTO_MPLS
+ IPPROTO_RAW = 255, /* Raw IP packets. */
+#define IPPROTO_RAW IPPROTO_RAW
+ IPPROTO_MAX
+ };
+
+/* If __USE_KERNEL_IPV6_DEFS is 1 then the user has included the kernel
+ network headers first and we should use those ABI-identical definitions
+ instead of our own, otherwise 0. */
+#if !__USE_KERNEL_IPV6_DEFS
+enum
+ {
+ IPPROTO_HOPOPTS = 0, /* IPv6 Hop-by-Hop options. */
+#define IPPROTO_HOPOPTS IPPROTO_HOPOPTS
+ IPPROTO_ROUTING = 43, /* IPv6 routing header. */
+#define IPPROTO_ROUTING IPPROTO_ROUTING
+ IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header. */
+#define IPPROTO_FRAGMENT IPPROTO_FRAGMENT
+ IPPROTO_ICMPV6 = 58, /* ICMPv6. */
+#define IPPROTO_ICMPV6 IPPROTO_ICMPV6
+ IPPROTO_NONE = 59, /* IPv6 no next header. */
+#define IPPROTO_NONE IPPROTO_NONE
+ IPPROTO_DSTOPTS = 60, /* IPv6 destination options. */
+#define IPPROTO_DSTOPTS IPPROTO_DSTOPTS
+ IPPROTO_MH = 135 /* IPv6 mobility header. */
+#define IPPROTO_MH IPPROTO_MH
+ };
+#endif /* !__USE_KERNEL_IPV6_DEFS */
+
+/* Type to represent a port. */
+typedef uint16_t in_port_t;
+
+/* 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
+ };
+
+/* 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) ((((in_addr_t)(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) ((((in_addr_t)(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) ((((in_addr_t)(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) ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000)
+#define IN_MULTICAST(a) IN_CLASSD(a)
+
+#define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000)
+#define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000)
+
+/* Address to accept any incoming messages. */
+#define INADDR_ANY ((in_addr_t) 0x00000000)
+/* Address to send to all hosts. */
+#define INADDR_BROADCAST ((in_addr_t) 0xffffffff)
+/* Address indicating an error return. */
+#define INADDR_NONE ((in_addr_t) 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 ((in_addr_t) 0x7f000001) /* Inet 127.0.0.1. */
+#endif
+
+/* Defines for Multicast INADDR. */
+#define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000) /* 224.0.0.0 */
+#define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001) /* 224.0.0.1 */
+#define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002) /* 224.0.0.2 */
+#define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */
+
+#if !__USE_KERNEL_IPV6_DEFS
+/* IPv6 address */
+struct in6_addr
+ {
+ union
+ {
+ uint8_t __u6_addr8[16];
+ uint16_t __u6_addr16[8];
+ uint32_t __u6_addr32[4];
+ } __in6_u;
+#define s6_addr __in6_u.__u6_addr8
+#ifdef __USE_MISC
+# define s6_addr16 __in6_u.__u6_addr16
+# define s6_addr32 __in6_u.__u6_addr32
+#endif
+ };
+#endif /* !__USE_KERNEL_IPV6_DEFS */
+
+extern const struct in6_addr in6addr_any; /* :: */
+extern const struct in6_addr in6addr_loopback; /* ::1 */
+#define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
+#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
+
+#define INET_ADDRSTRLEN 16
+#define INET6_ADDRSTRLEN 46
+
+
+/* Structure describing an Internet socket address. */
+struct sockaddr_in
+ {
+ __SOCKADDR_COMMON (sin_);
+ in_port_t 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 (in_port_t) -
+ sizeof (struct in_addr)];
+ };
+
+#if !__USE_KERNEL_IPV6_DEFS
+/* Ditto, for IPv6. */
+struct sockaddr_in6
+ {
+ __SOCKADDR_COMMON (sin6_);
+ in_port_t sin6_port; /* Transport layer port # */
+ uint32_t sin6_flowinfo; /* IPv6 flow information */
+ struct in6_addr sin6_addr; /* IPv6 address */
+ uint32_t sin6_scope_id; /* IPv6 scope-id */
+ };
+#endif /* !__USE_KERNEL_IPV6_DEFS */
+
+#ifdef __USE_MISC
+/* IPv4 multicast request. */
+struct ip_mreq
+ {
+ /* IP multicast address of group. */
+ struct in_addr imr_multiaddr;
+
+ /* Local IP address of interface. */
+ struct in_addr imr_interface;
+ };
+
+struct ip_mreq_source
+ {
+ /* IP multicast address of group. */
+ struct in_addr imr_multiaddr;
+
+ /* IP address of interface. */
+ struct in_addr imr_interface;
+
+ /* IP address of source. */
+ struct in_addr imr_sourceaddr;
+ };
+#endif
+
+#if !__USE_KERNEL_IPV6_DEFS
+/* Likewise, for IPv6. */
+struct ipv6_mreq
+ {
+ /* IPv6 multicast address of group */
+ struct in6_addr ipv6mr_multiaddr;
+
+ /* local interface */
+ unsigned int ipv6mr_interface;
+ };
+#endif /* !__USE_KERNEL_IPV6_DEFS */
+
+#ifdef __USE_MISC
+/* Multicast group request. */
+struct group_req
+ {
+ /* Interface index. */
+ uint32_t gr_interface;
+
+ /* Group address. */
+ struct sockaddr_storage gr_group;
+ };
+
+struct group_source_req
+ {
+ /* Interface index. */
+ uint32_t gsr_interface;
+
+ /* Group address. */
+ struct sockaddr_storage gsr_group;
+
+ /* Source address. */
+ struct sockaddr_storage gsr_source;
+ };
+
+
+/* Full-state filter operations. */
+struct ip_msfilter
+ {
+ /* IP multicast address of group. */
+ struct in_addr imsf_multiaddr;
+
+ /* Local IP address of interface. */
+ struct in_addr imsf_interface;
+
+ /* Filter mode. */
+ uint32_t imsf_fmode;
+
+ /* Number of source addresses. */
+ uint32_t imsf_numsrc;
+ /* Source addresses. */
+ struct in_addr imsf_slist[1];
+ };
+
+#define IP_MSFILTER_SIZE(numsrc) (sizeof (struct ip_msfilter) \
+ - sizeof (struct in_addr) \
+ + (numsrc) * sizeof (struct in_addr))
+
+struct group_filter
+ {
+ /* Interface index. */
+ uint32_t gf_interface;
+
+ /* Group address. */
+ struct sockaddr_storage gf_group;
+
+ /* Filter mode. */
+ uint32_t gf_fmode;
+
+ /* Number of source addresses. */
+ uint32_t gf_numsrc;
+ /* Source addresses. */
+ struct sockaddr_storage gf_slist[1];
+};
+
+#define GROUP_FILTER_SIZE(numsrc) (sizeof (struct group_filter) \
+ - sizeof (struct sockaddr_storage) \
+ + ((numsrc) \
+ * sizeof (struct sockaddr_storage)))
+#endif
+
+/* Functions to convert between host and network byte order.
+
+ Please note that these functions normally take `unsigned long int' or
+ `unsigned short int' values as arguments and also return them. But
+ this was a short-sighted decision since on different systems the types
+ may have different representations but the values are always the same. */
+
+extern uint32_t ntohl (uint32_t __netlong) __THROW __attribute__ ((__const__));
+extern uint16_t ntohs (uint16_t __netshort)
+ __THROW __attribute__ ((__const__));
+extern uint32_t htonl (uint32_t __hostlong)
+ __THROW __attribute__ ((__const__));
+extern uint16_t htons (uint16_t __hostshort)
+ __THROW __attribute__ ((__const__));
+
+#include <endian.h>
+
+/* Get machine dependent optimized versions of byte swapping functions. */
+#include <bits/byteswap.h>
+#include <bits/uintn-identity.h>
+
+#ifdef __OPTIMIZE__
+/* We can optimize calls to the conversion functions. Either nothing has
+ to be done or we are using directly the byte-swapping functions which
+ often can be inlined. */
+# if __BYTE_ORDER == __BIG_ENDIAN
+/* The host byte order is the same as network byte order,
+ so these functions are all just identity. */
+# define ntohl(x) __uint32_identity (x)
+# define ntohs(x) __uint16_identity (x)
+# define htonl(x) __uint32_identity (x)
+# define htons(x) __uint16_identity (x)
+# else
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+# define ntohl(x) __bswap_32 (x)
+# define ntohs(x) __bswap_16 (x)
+# define htonl(x) __bswap_32 (x)
+# define htons(x) __bswap_16 (x)
+# endif
+# endif
+#endif
+
+#ifdef __GNUC__
+# define IN6_IS_ADDR_UNSPECIFIED(a) \
+ (__extension__ \
+ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
+ __a->__in6_u.__u6_addr32[0] == 0 \
+ && __a->__in6_u.__u6_addr32[1] == 0 \
+ && __a->__in6_u.__u6_addr32[2] == 0 \
+ && __a->__in6_u.__u6_addr32[3] == 0; }))
+
+# define IN6_IS_ADDR_LOOPBACK(a) \
+ (__extension__ \
+ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
+ __a->__in6_u.__u6_addr32[0] == 0 \
+ && __a->__in6_u.__u6_addr32[1] == 0 \
+ && __a->__in6_u.__u6_addr32[2] == 0 \
+ && __a->__in6_u.__u6_addr32[3] == htonl (1); }))
+
+# define IN6_IS_ADDR_LINKLOCAL(a) \
+ (__extension__ \
+ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
+ (__a->__in6_u.__u6_addr32[0] & htonl (0xffc00000)) == htonl (0xfe800000); }))
+
+# define IN6_IS_ADDR_SITELOCAL(a) \
+ (__extension__ \
+ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
+ (__a->__in6_u.__u6_addr32[0] & htonl (0xffc00000)) == htonl (0xfec00000); }))
+
+# define IN6_IS_ADDR_V4MAPPED(a) \
+ (__extension__ \
+ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
+ __a->__in6_u.__u6_addr32[0] == 0 \
+ && __a->__in6_u.__u6_addr32[1] == 0 \
+ && __a->__in6_u.__u6_addr32[2] == htonl (0xffff); }))
+
+# define IN6_IS_ADDR_V4COMPAT(a) \
+ (__extension__ \
+ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
+ __a->__in6_u.__u6_addr32[0] == 0 \
+ && __a->__in6_u.__u6_addr32[1] == 0 \
+ && __a->__in6_u.__u6_addr32[2] == 0 \
+ && ntohl (__a->__in6_u.__u6_addr32[3]) > 1; }))
+
+# define IN6_ARE_ADDR_EQUAL(a,b) \
+ (__extension__ \
+ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
+ const struct in6_addr *__b = (const struct in6_addr *) (b); \
+ __a->__in6_u.__u6_addr32[0] == __b->__in6_u.__u6_addr32[0] \
+ && __a->__in6_u.__u6_addr32[1] == __b->__in6_u.__u6_addr32[1] \
+ && __a->__in6_u.__u6_addr32[2] == __b->__in6_u.__u6_addr32[2] \
+ && __a->__in6_u.__u6_addr32[3] == __b->__in6_u.__u6_addr32[3]; }))
+#else
+# define IN6_IS_ADDR_UNSPECIFIED(a) \
+ (((const uint32_t *) (a))[0] == 0 \
+ && ((const uint32_t *) (a))[1] == 0 \
+ && ((const uint32_t *) (a))[2] == 0 \
+ && ((const uint32_t *) (a))[3] == 0)
+
+# define IN6_IS_ADDR_LOOPBACK(a) \
+ (((const uint32_t *) (a))[0] == 0 \
+ && ((const uint32_t *) (a))[1] == 0 \
+ && ((const uint32_t *) (a))[2] == 0 \
+ && ((const uint32_t *) (a))[3] == htonl (1))
+
+# define IN6_IS_ADDR_LINKLOCAL(a) \
+ ((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \
+ == htonl (0xfe800000))
+
+# define IN6_IS_ADDR_SITELOCAL(a) \
+ ((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \
+ == htonl (0xfec00000))
+
+# define IN6_IS_ADDR_V4MAPPED(a) \
+ ((((const uint32_t *) (a))[0] == 0) \
+ && (((const uint32_t *) (a))[1] == 0) \
+ && (((const uint32_t *) (a))[2] == htonl (0xffff)))
+
+# define IN6_IS_ADDR_V4COMPAT(a) \
+ ((((const uint32_t *) (a))[0] == 0) \
+ && (((const uint32_t *) (a))[1] == 0) \
+ && (((const uint32_t *) (a))[2] == 0) \
+ && (ntohl (((const uint32_t *) (a))[3]) > 1))
+
+# define IN6_ARE_ADDR_EQUAL(a,b) \
+ ((((const uint32_t *) (a))[0] == ((const uint32_t *) (b))[0]) \
+ && (((const uint32_t *) (a))[1] == ((const uint32_t *) (b))[1]) \
+ && (((const uint32_t *) (a))[2] == ((const uint32_t *) (b))[2]) \
+ && (((const uint32_t *) (a))[3] == ((const uint32_t *) (b))[3]))
+#endif
+
+#define IN6_IS_ADDR_MULTICAST(a) (((const uint8_t *) (a))[0] == 0xff)
+
+#ifdef __USE_MISC
+/* Bind socket to a privileged IP port. */
+extern int bindresvport (int __sockfd, struct sockaddr_in *__sock_in) __THROW;
+
+/* The IPv6 version of this function. */
+extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in)
+ __THROW;
+#endif
+
+
+#define IN6_IS_ADDR_MC_NODELOCAL(a) \
+ (IN6_IS_ADDR_MULTICAST(a) \
+ && ((((const uint8_t *) (a))[1] & 0xf) == 0x1))
+
+#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
+ (IN6_IS_ADDR_MULTICAST(a) \
+ && ((((const uint8_t *) (a))[1] & 0xf) == 0x2))
+
+#define IN6_IS_ADDR_MC_SITELOCAL(a) \
+ (IN6_IS_ADDR_MULTICAST(a) \
+ && ((((const uint8_t *) (a))[1] & 0xf) == 0x5))
+
+#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
+ (IN6_IS_ADDR_MULTICAST(a) \
+ && ((((const uint8_t *) (a))[1] & 0xf) == 0x8))
+
+#define IN6_IS_ADDR_MC_GLOBAL(a) \
+ (IN6_IS_ADDR_MULTICAST(a) \
+ && ((((const uint8_t *) (a))[1] & 0xf) == 0xe))
+
+
+#ifdef __USE_GNU
+struct cmsghdr; /* Forward declaration. */
+
+#if !__USE_KERNEL_IPV6_DEFS
+/* IPv6 packet information. */
+struct in6_pktinfo
+ {
+ struct in6_addr ipi6_addr; /* src/dst IPv6 address */
+ unsigned int ipi6_ifindex; /* send/recv interface index */
+ };
+
+/* IPv6 MTU information. */
+struct ip6_mtuinfo
+ {
+ struct sockaddr_in6 ip6m_addr; /* dst address including zone ID */
+ uint32_t ip6m_mtu; /* path MTU in host byte order */
+ };
+#endif /* !__USE_KERNEL_IPV6_DEFS */
+
+/* Obsolete hop-by-hop and Destination Options Processing (RFC 2292). */
+extern int inet6_option_space (int __nbytes)
+ __THROW __attribute_deprecated__;
+extern int inet6_option_init (void *__bp, struct cmsghdr **__cmsgp,
+ int __type) __THROW __attribute_deprecated__;
+extern int inet6_option_append (struct cmsghdr *__cmsg,
+ const uint8_t *__typep, int __multx,
+ int __plusy) __THROW __attribute_deprecated__;
+extern uint8_t *inet6_option_alloc (struct cmsghdr *__cmsg, int __datalen,
+ int __multx, int __plusy)
+ __THROW __attribute_deprecated__;
+extern int inet6_option_next (const struct cmsghdr *__cmsg,
+ uint8_t **__tptrp)
+ __THROW __attribute_deprecated__;
+extern int inet6_option_find (const struct cmsghdr *__cmsg,
+ uint8_t **__tptrp, int __type)
+ __THROW __attribute_deprecated__;
+
+
+/* Hop-by-Hop and Destination Options Processing (RFC 3542). */
+extern int inet6_opt_init (void *__extbuf, socklen_t __extlen) __THROW;
+extern int inet6_opt_append (void *__extbuf, socklen_t __extlen, int __offset,
+ uint8_t __type, socklen_t __len, uint8_t __align,
+ void **__databufp) __THROW;
+extern int inet6_opt_finish (void *__extbuf, socklen_t __extlen, int __offset)
+ __THROW;
+extern int inet6_opt_set_val (void *__databuf, int __offset, void *__val,
+ socklen_t __vallen) __THROW;
+extern int inet6_opt_next (void *__extbuf, socklen_t __extlen, int __offset,
+ uint8_t *__typep, socklen_t *__lenp,
+ void **__databufp) __THROW;
+extern int inet6_opt_find (void *__extbuf, socklen_t __extlen, int __offset,
+ uint8_t __type, socklen_t *__lenp,
+ void **__databufp) __THROW;
+extern int inet6_opt_get_val (void *__databuf, int __offset, void *__val,
+ socklen_t __vallen) __THROW;
+
+
+/* Routing Header Option (RFC 3542). */
+extern socklen_t inet6_rth_space (int __type, int __segments) __THROW;
+extern void *inet6_rth_init (void *__bp, socklen_t __bp_len, int __type,
+ int __segments) __THROW;
+extern int inet6_rth_add (void *__bp, const struct in6_addr *__addr) __THROW;
+extern int inet6_rth_reverse (const void *__in, void *__out) __THROW;
+extern int inet6_rth_segments (const void *__bp) __THROW;
+extern struct in6_addr *inet6_rth_getaddr (const void *__bp, int __index)
+ __THROW;
+
+
+/* Multicast source filter support. */
+
+/* Get IPv4 source filter. */
+extern int getipv4sourcefilter (int __s, struct in_addr __interface_addr,
+ struct in_addr __group, uint32_t *__fmode,
+ uint32_t *__numsrc, struct in_addr *__slist)
+ __THROW;
+
+/* Set IPv4 source filter. */
+extern int setipv4sourcefilter (int __s, struct in_addr __interface_addr,
+ struct in_addr __group, uint32_t __fmode,
+ uint32_t __numsrc,
+ const struct in_addr *__slist)
+ __THROW;
+
+
+/* Get source filter. */
+extern int getsourcefilter (int __s, uint32_t __interface_addr,
+ const struct sockaddr *__group,
+ socklen_t __grouplen, uint32_t *__fmode,
+ uint32_t *__numsrc,
+ struct sockaddr_storage *__slist) __THROW;
+
+/* Set source filter. */
+extern int setsourcefilter (int __s, uint32_t __interface_addr,
+ const struct sockaddr *__group,
+ socklen_t __grouplen, uint32_t __fmode,
+ uint32_t __numsrc,
+ const struct sockaddr_storage *__slist) __THROW;
+#endif /* use GNU */
+
+__END_DECLS
+
+#endif /* netinet/in.h */
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