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//==========================================================================

//

//      include/netdb.h

//

//      eCos implementations of network "database" functions

//

//==========================================================================

//####BSDCOPYRIGHTBEGIN####

//

// -------------------------------------------

//

// Portions of this software may have been derived from OpenBSD or other sources,

// and are covered by the appropriate copyright disclaimers included herein.

//

// -------------------------------------------

//

//####BSDCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    gthomas

// Contributors: gthomas

// Date:         2000-01-10

// Purpose:      

// Description:  

//              

//

//####DESCRIPTIONEND####

//

//==========================================================================

//

// Support for various "network databases"

//

#ifndef _NETDB_H_

#define _NETDB_H_

#ifdef __cplusplus

extern "C" {

#endif

// Internet protocols

struct protoent {

    char *p_name;

    int   p_proto;

};

struct protoent *getprotobyname(const char *);

struct protoent *getprotobynumber(const int);

// Internet services

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 servent *getservbyname(const char *name, const char *proto);

struct servent *getservbyport(int port, const char *proto);

// Name/address manipulation

struct addrinfo {

        int     ai_flags;       /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */

        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 */

};

/*

 * Error return codes from getaddrinfo(), getnameinfo()

 */

#define EAI_NONE         0      /* valid return - no errors */

#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_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      /* inconsistent hints */

#define EAI_PROTOCOL    13

#define EAI_MAX         14

/*

 * Flag values for getaddrinfo()

 */

#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 | AI_ADDRCONFIG)

#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)

int   getaddrinfo(const char *, const char *,

                  const struct addrinfo *, struct addrinfo **);

void  freeaddrinfo(struct addrinfo *);

char *gai_strerror(int);

/*

 * Support for getnameinfo()

 */

#define NI_MAXHOST      1025

#define NI_MAXSERV      32

#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.  */

/* Translate a socket address to a location and service name.  */

int getnameinfo (const struct sockaddr *sa, socklen_t salen,

                 char *host, socklen_t hostlen,

                 char *serv, socklen_t servlen,

                 unsigned int flags);

// Miscellaneous address manipulation functions

#include <netinet/in.h>

char     *inet_ntoa(struct in_addr);

char     *inet_ntop(int af, char *src, char *dst, size_t len);

int      inet_pton(int af, char *src, char *dst);

char     *_inet_ntop(struct sockaddr *sa, char *dst, size_t len);

u_int16_t _inet_port(struct sockaddr *sa);

#ifdef __cplusplus

}

#endif

#endif // _NETDB_H_