104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* getaddrinfo.h
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* Support getaddrinfo() on platforms that don't have it.
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*
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*
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* Note: we use our own routines on platforms that don't HAVE_STRUCT_ADDRINFO,
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* whether or not the library routine getaddrinfo() can be found. This
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* policy is needed because on some platforms a manually installed libbind.a
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* may provide getaddrinfo(), yet the system headers may not provide the
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* struct definitions needed to call it. To avoid conflict with the libbind
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* definition in such cases, we rename our routines to pg_xxx() via macros.
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*
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* This code will also work on platforms where struct addrinfo is defined
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* in the system headers but no getaddrinfo() can be located.
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*
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* Copyright (c) 2003, PostgreSQL Global Development Group
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*
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* $Id: getaddrinfo.h,v 1.4 2003/06/12 08:02:56 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef GETADDRINFO_H
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#define GETADDRINFO_H
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#if !defined(WIN32) || (!defined(_MSC_VER) && !defined(__BORLANDC__))
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#include <sys/socket.h>
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#include <netdb.h>
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#endif
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#ifndef HAVE_STRUCT_ADDRINFO
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struct addrinfo {
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int ai_flags;
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int ai_family;
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int ai_socktype;
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int ai_protocol;
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size_t ai_addrlen;
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struct sockaddr *ai_addr;
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char *ai_canonname;
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struct addrinfo *ai_next;
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};
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#define EAI_BADFLAGS -1
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#define EAI_NONAME -2
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#define EAI_AGAIN -3
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#define EAI_FAIL -4
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#define EAI_FAMILY -6
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#define EAI_SOCKTYPE -7
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#define EAI_SERVICE -8
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#define EAI_MEMORY -10
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#define EAI_SYSTEM -11
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#define AI_PASSIVE 0x0001
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#define AI_NUMERICHOST 0x0004
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#define NI_NUMERICHOST 1
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#define NI_NUMERICSERV 2
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#endif /* HAVE_STRUCT_ADDRINFO */
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#ifndef NI_MAXHOST
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#define NI_MAXHOST 1025
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#define NI_MAXSERV 32
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#endif
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#ifndef HAVE_GETADDRINFO
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/* Rename private copies per comments above */
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#ifdef getaddrinfo
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#undef getaddrinfo
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#endif
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#define getaddrinfo pg_getaddrinfo
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#ifdef freeaddrinfo
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#undef freeaddrinfo
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#endif
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#define freeaddrinfo pg_freeaddrinfo
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#ifdef gai_strerror
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#undef gai_strerror
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#endif
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#define gai_strerror pg_gai_strerror
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#ifdef getnameinfo
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#undef getnameinfo
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#endif
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#define getnameinfo pg_getnameinfo
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extern int getaddrinfo(const char *node, const char *service,
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const struct addrinfo *hints, struct addrinfo **res);
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extern void freeaddrinfo(struct addrinfo *res);
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extern const char *gai_strerror(int errcode);
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extern int getnameinfo(const struct sockaddr *sa, int salen,
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char *node, int nodelen,
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char *service, int servicelen, int flags);
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#endif /* HAVE_GETADDRINFO */
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#endif /* GETADDRINFO_H */
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