f1464ff956
name server addresses are read from the dns cache associated wih the interface on which the request shall be done. processes which has requested to issue dns request using specific interface are now proxied to netd. added methods to attach/detach a process to a specific dns cache/interface. added getaddrinfoforinface method which takes an interface as an argument. Change-Id: I851ec8ab8ce3112626ad2a729078b91d013f32fd bug:4815099 bug:5465296
255 lines
10 KiB
C
255 lines
10 KiB
C
/*-
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* Copyright (c) 1980, 1983, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* -
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* Portions Copyright (c) 1993 by Digital Equipment Corporation.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies, and that
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* the name of Digital Equipment Corporation not be used in advertising or
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* publicity pertaining to distribution of the document or software without
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* specific, written prior permission.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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* -
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* --Copyright--
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*/
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/*
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* @(#)netdb.h 8.1 (Berkeley) 6/2/93
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* From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $
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* $FreeBSD: /repoman/r/ncvs/src/include/netdb.h,v 1.41 2006/04/15 16:20:26 ume Exp $
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*/
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#ifndef _NETDB_H_
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#define _NETDB_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#ifndef _PATH_HEQUIV
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# define _PATH_HEQUIV "/system/etc/hosts.equiv"
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#endif
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#define _PATH_HOSTS "/system/etc/hosts"
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#define _PATH_NETWORKS "/system/etc/networks"
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#define _PATH_PROTOCOLS "/system/etc/protocols"
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#define _PATH_SERVICES "/system/etc/services"
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#define MAXHOSTNAMELEN 256
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/*
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* Structures returned by network data base library. All addresses are
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* supplied in host order, and returned in network order (suitable for
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* use in system calls).
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*/
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struct hostent {
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char *h_name; /* official name of host */
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char **h_aliases; /* alias list */
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int h_addrtype; /* host address type */
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int h_length; /* length of address */
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char **h_addr_list; /* list of addresses from name server */
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#define h_addr h_addr_list[0] /* address, for backward compatibility */
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};
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struct netent {
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char *n_name; /* official name of net */
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char **n_aliases; /* alias list */
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int n_addrtype; /* net address type */
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uint32_t n_net; /* network # */
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};
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struct servent {
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char *s_name; /* official service name */
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char **s_aliases; /* alias list */
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int s_port; /* port # */
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char *s_proto; /* protocol to use */
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};
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struct protoent {
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char *p_name; /* official protocol name */
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char **p_aliases; /* alias list */
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int p_proto; /* protocol # */
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};
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struct addrinfo {
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int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
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int ai_family; /* PF_xxx */
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int ai_socktype; /* SOCK_xxx */
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int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
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socklen_t ai_addrlen; /* length of ai_addr */
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char *ai_canonname; /* canonical name for hostname */
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struct sockaddr *ai_addr; /* binary address */
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struct addrinfo *ai_next; /* next structure in linked list */
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};
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/*
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* Error return codes from gethostbyname() and gethostbyaddr()
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* (left in h_errno).
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*/
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#define NETDB_INTERNAL -1 /* see errno */
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#define NETDB_SUCCESS 0 /* no problem */
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#define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
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#define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */
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#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
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#define NO_DATA 4 /* Valid name, no data record of requested type */
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#define NO_ADDRESS NO_DATA /* no address, look for MX record */
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/*
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* Error return codes from getaddrinfo()
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*/
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#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
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#define EAI_AGAIN 2 /* temporary failure in name resolution */
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#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
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#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
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#define EAI_FAMILY 5 /* ai_family not supported */
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#define EAI_MEMORY 6 /* memory allocation failure */
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#define EAI_NODATA 7 /* no address associated with hostname */
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#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
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#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
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#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
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#define EAI_SYSTEM 11 /* system error returned in errno */
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#define EAI_BADHINTS 12 /* invalid value for hints */
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#define EAI_PROTOCOL 13 /* resolved protocol is unknown */
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#define EAI_OVERFLOW 14 /* argument buffer overflow */
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#define EAI_MAX 15
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/*
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* Flag values for getaddrinfo()
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*/
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#define AI_PASSIVE 0x00000001 /* get address to use bind() */
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#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
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#define AI_NUMERICHOST 0x00000004 /* prevent host name resolution */
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#define AI_NUMERICSERV 0x00000008 /* prevent service name resolution */
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/* valid flags for addrinfo (not a standard def, apps should not use it) */
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#define AI_MASK \
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(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | \
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AI_ADDRCONFIG)
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#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
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#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */
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#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
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#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */
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/* special recommended flags for getipnodebyname */
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#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG)
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/*
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* Constants for getnameinfo()
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*/
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#define NI_MAXHOST 1025
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#define NI_MAXSERV 32
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/*
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* Flag values for getnameinfo()
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*/
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#define NI_NOFQDN 0x00000001
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#define NI_NUMERICHOST 0x00000002
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#define NI_NAMEREQD 0x00000004
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#define NI_NUMERICSERV 0x00000008
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#define NI_DGRAM 0x00000010
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#if 0 /* obsolete */
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#define NI_WITHSCOPEID 0x00000020
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#endif
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/*
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* Scope delimit character
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*/
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#define SCOPE_DELIMITER '%'
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__BEGIN_DECLS
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/* BIONIC-BEGIN */
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#define h_errno (*__get_h_errno())
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int* __get_h_errno(void);
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/* BIONIC-END */
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void endhostent(void);
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void endnetent(void);
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void endnetgrent(void);
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void endprotoent(void);
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void endservent(void);
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void freehostent(struct hostent *);
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struct hostent *gethostbyaddr(const void *, socklen_t, int);
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struct hostent *android_gethostbyaddrforiface(const void *, socklen_t, int, const char*);
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int gethostbyaddr_r(const void *, int, int, struct hostent *, char *, size_t, struct hostent **, int *);
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struct hostent *gethostbyname(const char *);
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int gethostbyname_r(const char *, struct hostent *, char *, size_t, struct hostent **, int *);
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struct hostent *gethostbyname2(const char *, int);
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int gethostbyname2_r(const char *, int, struct hostent *, char *, size_t, struct hostent **, int *);
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struct hostent *android_gethostbynameforiface(const char *, int, const char *);
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struct hostent *gethostent(void);
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int gethostent_r(struct hostent *, char *, size_t, struct hostent **, int *);
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struct hostent *getipnodebyaddr(const void *, size_t, int, int *);
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struct hostent *getipnodebyname(const char *, int, int, int *);
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struct netent *getnetbyaddr(uint32_t, int);
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int getnetbyaddr_r(uint32_t, int, struct netent *, char *, size_t, struct netent**, int *);
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struct netent *getnetbyname(const char *);
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int getnetbyname_r(const char *, struct netent *, char *, size_t, struct netent **, int *);
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struct netent *getnetent(void);
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int getnetent_r(struct netent *, char *, size_t, struct netent **, int *);
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int getnetgrent(char **, char **, char **);
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struct protoent *getprotobyname(const char *);
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int getprotobyname_r(const char *, struct protoent *, char *, size_t, struct protoent **);
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struct protoent *getprotobynumber(int);
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int getprotobynumber_r(int, struct protoent *, char *, size_t, struct protoent **);
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struct protoent *getprotoent(void);
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int getprotoent_r(struct protoent *, char *, size_t, struct protoent **);
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struct servent *getservbyname(const char *, const char *);
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struct servent *getservbyport(int, const char *);
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struct servent *getservent(void);
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void herror(const char *);
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const char *hstrerror(int);
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int innetgr(const char *, const char *, const char *, const char *);
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void sethostent(int);
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void setnetent(int);
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void setprotoent(int);
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int getaddrinfo(const char *, const char *, const struct addrinfo *, struct addrinfo **);
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int android_getaddrinfoforiface(const char *, const char *, const struct addrinfo *, const char *, struct addrinfo **);
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int getnameinfo(const struct sockaddr *, socklen_t, char *, size_t, char *, size_t, int);
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int android_getnameinfoforiface(const struct sockaddr *, socklen_t, char *, size_t, char *, size_t, int, const char *);
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void freeaddrinfo(struct addrinfo *);
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const char *gai_strerror(int);
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void setnetgrent(const char *);
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void setservent(int);
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__END_DECLS
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#endif /* !_NETDB_H_ */
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