1: /*
2: PostgreSQL Database Management System
3: (formerly known as Postgres, then as Postgres95)
4:
5: Portions Copyright (c) 1996-2005, The PostgreSQL Global Development Group
6:
7: Portions Copyright (c) 1994, The Regents of the University of California
8:
9: Permission to use, copy, modify, and distribute this software and its
10: documentation for any purpose, without fee, and without a written agreement
11: is hereby granted, provided that the above copyright notice and this paragraph
12: and the following two paragraphs appear in all copies.
13:
14: IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
15: DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
16: LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
17: EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
18: SUCH DAMAGE.
19:
20: THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
21: INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
22: AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
23: ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS
24: TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
25:
26: */
27:
28: /*-------------------------------------------------------------------------
29: *
30: * getaddrinfo.h
31: * Support getaddrinfo() on platforms that don't have it.
32: *
33: * Note: we use our own routines on platforms that don't HAVE_STRUCT_ADDRINFO,
34: * whether or not the library routine getaddrinfo() can be found. This
35: * policy is needed because on some platforms a manually installed libbind.a
36: * may provide getaddrinfo(), yet the system headers may not provide the
37: * struct definitions needed to call it. To avoid conflict with the libbind
38: * definition in such cases, we rename our routines to pg_xxx() via macros.
39: *
40: * This code will also work on platforms where struct addrinfo is defined
41: * in the system headers but no getaddrinfo() can be located.
42: *
43: * Copyright (c) 2003-2007, PostgreSQL Global Development Group
44: *
45: *-------------------------------------------------------------------------
46: */
47: #ifndef ADDRINFO_H
48: #define ADDRINFO_H
49:
50:
51: /* Various macros that ought to be in <netdb.h>, but might not be */
52:
53: #ifndef EAI_FAIL
54: #define EAI_BADFLAGS (-1)
55: #define EAI_NONAME (-2)
56: #define EAI_AGAIN (-3)
57: #define EAI_FAIL (-4)
58: #define EAI_FAMILY (-6)
59: #define EAI_SOCKTYPE (-7)
60: #define EAI_SERVICE (-8)
61: #define EAI_MEMORY (-10)
62: #define EAI_SYSTEM (-11)
63: #endif /* !EAI_FAIL */
64:
65: #ifndef AI_PASSIVE
66: #define AI_PASSIVE 0x0001
67: #endif
68:
69: #ifndef AI_NUMERICHOST
70: /*
71: * some platforms don't support AI_NUMERICHOST; define as zero if using
72: * the system version of getaddrinfo...
73: */
74: #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
75: #define AI_NUMERICHOST 0
76: #else
77: #define AI_NUMERICHOST 0x0004
78: #endif
79: #endif
80:
81: #ifndef AI_CANONNAME
82: #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
83: #define AI_CANONNAME 0
84: #else
85: #define AI_CANONNAME 0x0008
86: #endif
87: #endif
88:
89: #ifndef AI_NUMERICSERV
90: #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
91: #define AI_NUMERICSERV 0
92: #else
93: #define AI_NUMERICSERV 0x0010
94: #endif
95: #endif
96:
97: #ifndef NI_NUMERICHOST
98: #define NI_NUMERICHOST 1
99: #endif
100:
101: #ifndef NI_NUMERICSERV
102: #define NI_NUMERICSERV 2
103: #endif
104:
105: #ifndef NI_NOFQDN
106: #define NI_NOFQDN 4
107: #endif
108:
109: #ifndef NI_NAMEREQD
110: #define NI_NAMEREQD 8
111: #endif
112:
113: #ifndef NI_DGRAM
114: #define NI_DGRAM 16
115: #endif
116:
117:
118: #ifndef NI_MAXHOST
119: #define NI_MAXHOST 1025
120: #endif
121:
122: #ifndef NI_MAXSERV
123: #define NI_MAXSERV 32
124: #endif
125:
126: #ifndef HAVE_STRUCT_ADDRINFO
127: struct addrinfo
128: {
129: int ai_flags;
130: int ai_family;
131: int ai_socktype;
132: int ai_protocol;
133: size_t ai_addrlen;
134: struct sockaddr *ai_addr;
135: char *ai_canonname;
136: struct addrinfo *ai_next;
137: };
138: #endif /* !HAVE_STRUCT_ADDRINFO */
139:
140: #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
141: struct sockaddr_storage {
142: unsigned short ss_family;
143: unsigned long ss_align;
144: char ss_padding[128 - sizeof (unsigned long)];
145: };
146: #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */
147:
148: #ifndef HAVE_GETADDRINFO
149:
150: /* Rename private copies per comments above */
151: #ifdef getaddrinfo
152: #undef getaddrinfo
153: #endif
154: #define getaddrinfo pg_getaddrinfo
155:
156: #ifdef freeaddrinfo
157: #undef freeaddrinfo
158: #endif
159: #define freeaddrinfo pg_freeaddrinfo
160:
161: #ifdef gai_strerror
162: #undef gai_strerror
163: #endif
164: #define gai_strerror pg_gai_strerror
165:
166: #ifdef getnameinfo
167: #undef getnameinfo
168: #endif
169: #define getnameinfo pg_getnameinfo
170:
171: extern int getaddrinfo(const char *node, const char *service,
172: const struct addrinfo * hints, struct addrinfo ** res);
173: extern void freeaddrinfo(struct addrinfo * res);
174: extern const char *gai_strerror(int errcode);
175: extern int getnameinfo(const struct sockaddr * sa, socklen_t salen,
176: char *node, size_t nodelen,
177: char *service, size_t servicelen, int flags);
178: #endif /* !HAVE_GETADDRINFO */
179:
180: #endif /* ADDRINFO_H */
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