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* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

* 3. Neither the name of the project nor the names of its contributors

* may be used to endorse or promote products derived from this software

* without specific prior written permission.

* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND

* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE

* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

* SUCH DAMAGE.

#ifndef HAVE_GETADDRINFO

* Error return codes from getaddrinfo()

#ifdef EAI_ADDRFAMILY

/* If this is defined, there is a conflicting implementation

in the C library, which can't be used for some reason.

Make sure it won't interfere with this emulation. */

#undef EAI_ADDRFAMILY

#undef EAI_AGAIN

#undef EAI_BADFLAGS

#undef EAI_FAIL

#undef EAI_FAMILY

#undef EAI_MEMORY

#undef EAI_NODATA

#undef EAI_NONAME

#undef EAI_SERVICE

#undef EAI_SOCKTYPE

#undef EAI_SYSTEM

#undef EAI_BADHINTS

#undef EAI_PROTOCOL

#undef EAI_MAX

#undef getaddrinfo

#define getaddrinfo fake_getaddrinfo

#endif /* EAI_ADDRFAMILY */

#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */

#define EAI_AGAIN 2 /* temporary failure in name resolution */

#define EAI_BADFLAGS 3 /* invalid value for ai_flags */

#define EAI_FAIL 4 /* non-recoverable failure in name resolution */

#define EAI_FAMILY 5 /* ai_family not supported */

#define EAI_MEMORY 6 /* memory allocation failure */

#define EAI_NODATA 7 /* no address associated with hostname */

#define EAI_NONAME 8 /* hostname nor servname provided, or not known */

#define EAI_SERVICE 9 /* servname not supported for ai_socktype */

#define EAI_SOCKTYPE 10 /* ai_socktype not supported */

#define EAI_SYSTEM 11 /* system error returned in errno */

#define EAI_BADHINTS 12

#define EAI_PROTOCOL 13

#define EAI_MAX 14

* Flag values for getaddrinfo()

#ifdef AI_PASSIVE

#undef AI_PASSIVE

#undef AI_CANONNAME

#undef AI_NUMERICHOST

#undef AI_NUMERICSERV

#undef AI_MASK

#undef AI_ALL

#undef AI_V4MAPPED_CFG

#undef AI_ADDRCONFIG

#undef AI_V4MAPPED

#undef AI_DEFAULT

#endif /* AI_PASSIVE */

#define AI_PASSIVE 0x00000001 /* get address to use bind() */

#define AI_CANONNAME 0x00000002 /* fill ai_canonname */

#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */

#define AI_NUMERICSERV 0x00000008 /* prevent service resolution */

/* valid flags for addrinfo */

#define AI_MASK (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV)

#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */

#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */

#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */

#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */

/* special recommended flags for getipnodebyname */

#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG)

#endif /* !HAVE_GETADDRINFO */

#ifndef HAVE_GETNAMEINFO

* Constants for getnameinfo()

#ifndef NI_MAXHOST

#define NI_MAXHOST 1025

#define NI_MAXSERV 32

#endif /* !NI_MAXHOST */

* Flag values for getnameinfo()

#ifndef NI_NOFQDN

#define NI_NOFQDN 0x00000001

#define NI_NUMERICHOST 0x00000002

#define NI_NAMEREQD 0x00000004

#define NI_NUMERICSERV 0x00000008

#define NI_DGRAM 0x00000010

#endif /* !NI_NOFQDN */

#endif /* !HAVE_GETNAMEINFO */

#ifndef HAVE_ADDRINFO

struct addrinfo {

int ai_flags; /* AI_PASSIVE, AI_CANONNAME */

int ai_family; /* PF_xxx */

int ai_socktype; /* SOCK_xxx */

int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */

size_t ai_addrlen; /* length of ai_addr */

char *ai_canonname; /* canonical name for hostname */

struct sockaddr *ai_addr; /* binary address */

struct addrinfo *ai_next; /* next structure in linked list */

};

#endif /* !HAVE_ADDRINFO */

#ifndef HAVE_SOCKADDR_STORAGE

* RFC 2553: protocol-independent placeholder for socket addresses

#define _SS_MAXSIZE 128

#define _SS_ALIGNSIZE (sizeof(long long))

#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) * 2)

#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) * 2 - \

_SS_PAD1SIZE - _SS_ALIGNSIZE)

struct sockaddr_storage {

#ifdef HAVE_SOCKADDR_SA_LEN

unsigned char ss_len; /* address length */

unsigned char ss_family; /* address family */

#else

unsigned short ss_family; /* address family */

#endif /* HAVE_SOCKADDR_SA_LEN */

char __ss_pad1[_SS_PAD1SIZE];

long long __ss_align; /* force desired structure storage alignment */

char __ss_pad2[_SS_PAD2SIZE];

};

#endif /* !HAVE_SOCKADDR_STORAGE */

#ifdef __cplusplus

extern "C" {

#endif

#ifdef ENABLE_IPV6

extern void freehostent(struct hostent *);

#endif

#ifdef __cplusplus

}

#endif

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