1 /*-------------------------------------------------------------------------
4 * Support getaddrinfo() on platforms that don't have it.
6 * Note: we use our own routines on platforms that don't HAVE_STRUCT_ADDRINFO,
7 * whether or not the library routine getaddrinfo() can be found. This
8 * policy is needed because on some platforms a manually installed libbind.a
9 * may provide getaddrinfo(), yet the system headers may not provide the
10 * struct definitions needed to call it. To avoid conflict with the libbind
11 * definition in such cases, we rename our routines to pg_xxx() via macros.
13 * This code will also work on platforms where struct addrinfo is defined
14 * in the system headers but no getaddrinfo() can be located.
16 * Copyright (c) 2003-2017, PostgreSQL Global Development Group
18 * src/include/getaddrinfo.h
20 *-------------------------------------------------------------------------
25 #include <sys/socket.h>
29 /* Various macros that ought to be in <netdb.h>, but might not be */
33 #define EAI_BADFLAGS (-1)
34 #define EAI_NONAME (-2)
35 #define EAI_AGAIN (-3)
37 #define EAI_FAMILY (-6)
38 #define EAI_SOCKTYPE (-7)
39 #define EAI_SERVICE (-8)
40 #define EAI_MEMORY (-10)
41 #define EAI_SYSTEM (-11)
43 #ifdef WIN32_ONLY_COMPILER
44 #ifndef WSA_NOT_ENOUGH_MEMORY
45 #define WSA_NOT_ENOUGH_MEMORY (WSAENOBUFS)
48 #define WSATYPE_NOT_FOUND (WSABASEERR+109)
51 #define EAI_AGAIN WSATRY_AGAIN
52 #define EAI_BADFLAGS WSAEINVAL
53 #define EAI_FAIL WSANO_RECOVERY
54 #define EAI_FAMILY WSAEAFNOSUPPORT
55 #define EAI_MEMORY WSA_NOT_ENOUGH_MEMORY
56 #define EAI_NODATA WSANO_DATA
57 #define EAI_NONAME WSAHOST_NOT_FOUND
58 #define EAI_SERVICE WSATYPE_NOT_FOUND
59 #define EAI_SOCKTYPE WSAESOCKTNOSUPPORT
61 #endif /* !EAI_FAIL */
64 #define AI_PASSIVE 0x0001
67 #ifndef AI_NUMERICHOST
69 * some platforms don't support AI_NUMERICHOST; define as zero if using
70 * the system version of getaddrinfo...
72 #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
73 #define AI_NUMERICHOST 0
75 #define AI_NUMERICHOST 0x0004
79 #ifndef NI_NUMERICHOST
80 #define NI_NUMERICHOST 1
82 #ifndef NI_NUMERICSERV
83 #define NI_NUMERICSERV 2
90 #define NI_MAXHOST 1025
97 #ifndef HAVE_STRUCT_ADDRINFO
107 struct sockaddr *ai_addr;
109 struct addrinfo *ai_next;
113 * The order of the structure elements on Win32 doesn't match the
114 * order specified in the standard, but we have to match it for
125 struct sockaddr *ai_addr;
126 struct addrinfo *ai_next;
129 #endif /* HAVE_STRUCT_ADDRINFO */
132 #ifndef HAVE_GETADDRINFO
134 /* Rename private copies per comments above */
138 #define getaddrinfo pg_getaddrinfo
143 #define freeaddrinfo pg_freeaddrinfo
148 #define gai_strerror pg_gai_strerror
153 #define getnameinfo pg_getnameinfo
155 extern int getaddrinfo(const char *node, const char *service,
156 const struct addrinfo * hints, struct addrinfo ** res);
157 extern void freeaddrinfo(struct addrinfo * res);
158 extern const char *gai_strerror(int errcode);
159 extern int getnameinfo(const struct sockaddr * sa, int salen,
160 char *node, int nodelen,
161 char *service, int servicelen, int flags);
162 #endif /* HAVE_GETADDRINFO */
164 #endif /* GETADDRINFO_H */