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181 lines
4.7 KiB
C
181 lines
4.7 KiB
C
/*
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PostgreSQL Database Management System
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(formerly known as Postgres, then as Postgres95)
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Portions Copyright (c) 1996-2005, The PostgreSQL Global Development Group
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Portions Copyright (c) 1994, The Regents of the University of California
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose, without fee, and without a written agreement
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is hereby granted, provided that the above copyright notice and this paragraph
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and the following two paragraphs appear in all copies.
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IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
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DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
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LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
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EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS
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TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*/
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/*-------------------------------------------------------------------------
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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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* 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) 2003-2007, PostgreSQL Global Development Group
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef ADDRINFO_H
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#define ADDRINFO_H
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/* Various macros that ought to be in <netdb.h>, but might not be */
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#ifndef EAI_FAIL
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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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#endif /* !EAI_FAIL */
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#ifndef AI_PASSIVE
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#define AI_PASSIVE 0x0001
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#endif
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#ifndef AI_NUMERICHOST
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/*
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* some platforms don't support AI_NUMERICHOST; define as zero if using
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* the system version of getaddrinfo...
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*/
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#if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
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#define AI_NUMERICHOST 0
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#else
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#define AI_NUMERICHOST 0x0004
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#endif
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#endif
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#ifndef AI_CANONNAME
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#if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
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#define AI_CANONNAME 0
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#else
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#define AI_CANONNAME 0x0008
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#endif
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#endif
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#ifndef AI_NUMERICSERV
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#if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
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#define AI_NUMERICSERV 0
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#else
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#define AI_NUMERICSERV 0x0010
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#endif
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#endif
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#ifndef NI_NUMERICHOST
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#define NI_NUMERICHOST 1
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#endif
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#ifndef NI_NUMERICSERV
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#define NI_NUMERICSERV 2
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#endif
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#ifndef NI_NOFQDN
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#define NI_NOFQDN 4
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#endif
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#ifndef NI_NAMEREQD
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#define NI_NAMEREQD 8
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#endif
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#ifndef NI_DGRAM
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#define NI_DGRAM 16
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#endif
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#ifndef NI_MAXHOST
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#define NI_MAXHOST 1025
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#endif
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#ifndef NI_MAXSERV
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#define NI_MAXSERV 32
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#endif
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#ifndef HAVE_STRUCT_ADDRINFO
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struct addrinfo
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{
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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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#endif /* !HAVE_STRUCT_ADDRINFO */
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#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
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struct sockaddr_storage {
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unsigned short ss_family;
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unsigned long ss_align;
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char ss_padding[128 - sizeof (unsigned long)];
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};
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#endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */
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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, socklen_t salen,
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char *node, size_t nodelen,
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char *service, size_t servicelen, int flags);
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#endif /* !HAVE_GETADDRINFO */
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#endif /* ADDRINFO_H */
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