su_addrinfo.h

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/*
 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
 * All rights reserved.
 *
 * 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 SU_ADDRINFO_H
/* Defined when <sofia-sip/su_addrinfo.h> has been included */
#define SU_ADDRINFO_H
 
#ifndef SU_TYPES_H
#include <sofia-sip/su_types.h>
#endif
 
#if SU_HAVE_BSDSOCK
#include <netdb.h>
#endif
 
SOFIA_BEGIN_DECLS
 
#if !SU_HAVE_ADDRINFO
/*
 * Error return codes from getaddrinfo()
 */
#ifndef 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
#endif
 
/*
 * Flag values for getaddrinfo()
 */
#ifndef 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 */
/* valid flags for addrinfo */
#define AI_MASK     (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
 
#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
 
/*
 * Constants for getnameinfo()
 */
#ifndef NI_MAXHOST
#define NI_MAXHOST  1025
#define NI_MAXSERV  32
#endif
 
/*
 * 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
 
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  /* SU_WITH_GETADDRINFO */
 
#ifndef EAI_BADHINTS
#define EAI_BADHINTS    10012
#endif
#ifndef EAI_PROTOCOL
#define EAI_PROTOCOL    10013
#endif
 
#ifndef AI_MASK
#define AI_MASK     (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
#endif

typedef struct addrinfo su_addrinfo_t;

SOFIAPUBFUN
int su_getaddrinfo(char const *node, char const *service,
           su_addrinfo_t const *hints,
           su_addrinfo_t **res);
SOFIAPUBFUN void su_freeaddrinfo(su_addrinfo_t *res);

SOFIAPUBFUN char const *su_gai_strerror(int errcode);
 
union su_sockaddr_u;
 
SOFIAPUBFUN
int su_getnameinfo(const union su_sockaddr_u *su, size_t sulen,
           char *host, size_t hostlen,
           char *serv, size_t servlen,
           int flags);
 
SOFIA_END_DECLS
 
#endif  /* !defined(SU_ADDRINFO_H) */