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/*-------------------------------------------------------------------------
*
* getaddrinfo.h
* Support getaddrinfo() on platforms that don't have it.
*
*
* Note: we use our own routines on platforms that don't HAVE_STRUCT_ADDRINFO,
* whether or not the library routine getaddrinfo() can be found. This
* policy is needed because on some platforms a manually installed libbind.a
* may provide getaddrinfo(), yet the system headers may not provide the
* struct definitions needed to call it. To avoid conflict with the libbind
* definition in such cases, we rename our routines to pg_xxx() via macros.
*
* This code will also work on platforms where struct addrinfo is defined
* in the system headers but no getaddrinfo() can be located.
*
* Copyright (c) 2003, PostgreSQL Global Development Group
*
* $Id: getaddrinfo.h,v 1.2 2003/04/02 00:49:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef GETADDRINFO_H
#define GETADDRINFO_H
#include <sys/socket.h>
#include <netdb.h>
#ifndef HAVE_STRUCT_ADDRINFO
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;
};
#define EAI_BADFLAGS -1
#define EAI_NONAME -2
#define EAI_AGAIN -3
#define EAI_FAIL -4
#define EAI_NODATA -5
#define EAI_FAMILY -6
#define EAI_SOCKTYPE -7
#define EAI_SERVICE -8
#define EAI_ADDRFAMILY -9
#define EAI_MEMORY -10
#define EAI_SYSTEM -11
#define AI_PASSIVE 0x0001
#define AI_NUMERICHOST 0x0004
#endif /* HAVE_STRUCT_ADDRINFO */
#ifndef HAVE_GETADDRINFO
/* Rename private copies per comments above */
#ifdef getaddrinfo
#undef getaddrinfo
#endif
#define getaddrinfo pg_getaddrinfo
#ifdef freeaddrinfo
#undef freeaddrinfo
#endif
#define freeaddrinfo pg_freeaddrinfo
#ifdef gai_strerror
#undef gai_strerror
#endif
#define gai_strerror pg_gai_strerror
extern int getaddrinfo(const char *node, const char *service,
const struct addrinfo *hints, struct addrinfo **res);
extern void freeaddrinfo(struct addrinfo *res);
extern const char *gai_strerror(int errcode);
#endif /* HAVE_GETADDRINFO */
#endif /* GETADDRINFO_H */
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