/*
 * (C) 2001-2012 Marmalade. All Rights Reserved.
 *
 * This document is protected by copyright, and contains information
 * proprietary to Marmalade.
 *
 * This file consists of source code released by Marmalade under
 * the terms of the accompanying End User License Agreement (EULA).
 * Please do not use this program/source code before you have read the
 * EULA and have agreed to be bound by its terms.
 */

#ifndef IW_NETDB_H
#define IW_NETDB_H

#include <sys/types.h>
#include <sys/socket.h>

#define NETDB_INTERNAL   -1 /* see errno */
#define NETDB_SUCCESS    0  /* no problem */
#define HOST_NOT_FOUND   1  /* Authoritative Answer Host not found */
#define TRY_AGAIN        2  /* Non-Authoritative Host not found, or SERVERFAIL */
#define NO_RECOVERY      3  /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
#define NO_DATA          4  /* Valid name, no data record of requested type */
#define NO_ADDRESS       NO_DATA /* no address, look for MX record */

#define AI_PASSIVE      0x0001  /* Socket address is intended for `bind'.  */
#define AI_CANONNAME    0x0002  /* Request for canonical name.  */
#define AI_NUMERICHOST  0x0004  /* Don't use name resolution.  */

#define NI_NUMERICHOST  1   /* Don't try to look up hostname.  */
#define NI_NUMERICSERV  2   /* Don't convert port number to name.  */
#define NI_NOFQDN       4   /* Only return nodename portion.  */
#define NI_NAMEREQD     8   /* Don't return numeric addresses.  */
#define NI_DGRAM        16  /* Look up UDP service rather than TCP.  */

#define NI_MAXHOST      1025
#define NI_MAXSERV      32

#define EAI_BADFLAGS   -1  /* Invalid value for `ai_flags' field.  */
#define EAI_NONAME     -2  /* NAME or SERVICE is unknown.  */
#define EAI_AGAIN      -3  /* Temporary failure in name resolution.  */
#define EAI_FAIL       -4  /* Non-recoverable failure in name res.  */
#define EAI_FAMILY     -6  /* `ai_family' not supported.  */
#define EAI_SOCKTYPE   -7  /* `ai_socktype' not supported.  */
#define EAI_SERVICE    -8  /* SERVICE not supported for `ai_socktype'.  */
#define EAI_MEMORY     -10 /* Memory allocation failure.  */
#define EAI_SYSTEM     -11 /* System error returned in `errno'.  */
#define EAI_OVERFLOW   -12 /* Argument buffer overflow.  */

struct hostent
{
    char  *h_name;       /* official name of host */
    char **h_aliases;    /* alias list */
    int    h_addrtype;   /* host address type */
    int    h_length;     /* length of address */
    char **h_addr_list;  /* list of addresses */
};
#define h_addr  h_addr_list[0]

struct servent
{
    char  *s_name;    /* official service name */
    char **s_aliases; /* alias list */
    int    s_port;    /* port number */
    char  *s_proto;   /* protocol to use */
};

struct protoent
{
    char *p_name;     /* Official protocol name.  */
    char **p_aliases; /* Alias list.  */
    int p_proto;      /* Protocol number.  */
};

struct addrinfo
{
    int              ai_flags;
    int              ai_family;
    int              ai_socktype;
    int              ai_protocol;
    size_t           ai_addrlen;
    struct sockaddr *ai_addr;
    char            *ai_canonname;
    struct addrinfo *ai_next;
};


S3E_BEGIN_C_DECL

struct hostent *gethostbyname(const char *name);
struct hostent *gethostbyaddr(const void *addr, socklen_t len, int type);
int gethostbyname_r(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop);

struct protoent *getprotoent(void);
struct protoent *getprotobyname(const char *name);
struct protoent *getprotobynumber(int proto);
void setprotoent(int stayopen);
void endprotoent(void);

struct servent *getservent(void);
struct servent *getservbyname(const char *name, const char *proto);
struct servent *getservbyport(int port, const char *proto);
void setservent(int stayopen);
void endservent(void);

int getaddrinfo(const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res);
void freeaddrinfo(struct addrinfo *res);
const char *gai_strerror(int errcode);

int getnameinfo(const struct sockaddr *sa, socklen_t salen, char *host, size_t hostlen, char *serv, size_t servlen, int flags);

#define H_ERRNO_NAME iw_h_errno
extern int H_ERRNO_NAME;
#define h_errno H_ERRNO_NAME

S3E_END_C_DECL

#endif /* !IW_NETDB_H */