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Diffstat (limited to 'lib/addrinfo.h')
| -rw-r--r-- | lib/addrinfo.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/lib/addrinfo.h b/lib/addrinfo.h new file mode 100644 index 0000000..ee9f672 --- /dev/null +++ b/lib/addrinfo.h @@ -0,0 +1,180 @@ +/* +PostgreSQL Database Management System +(formerly known as Postgres, then as Postgres95) + +Portions Copyright (c) 1996-2005, The PostgreSQL Global Development Group + +Portions Copyright (c) 1994, The Regents of the University of California + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose, without fee, and without a written agreement +is hereby granted, provided that the above copyright notice and this paragraph +and the following two paragraphs appear in all copies. + +IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR +DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING +LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, +EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. + +THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, +INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY +AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS +ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS +TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + +*/ + +/*------------------------------------------------------------------------- + * + * 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) 2003-2007, PostgreSQL Global Development Group + * + *------------------------------------------------------------------------- + */ +#ifndef ADDRINFO_H +#define ADDRINFO_H + + +/* Various macros that ought to be in <netdb.h>, but might not be */ + +#ifndef EAI_FAIL +#define EAI_BADFLAGS (-1) +#define EAI_NONAME (-2) +#define EAI_AGAIN (-3) +#define EAI_FAIL (-4) +#define EAI_FAMILY (-6) +#define EAI_SOCKTYPE (-7) +#define EAI_SERVICE (-8) +#define EAI_MEMORY (-10) +#define EAI_SYSTEM (-11) +#endif /* !EAI_FAIL */ + +#ifndef AI_PASSIVE +#define AI_PASSIVE 0x0001 +#endif + +#ifndef AI_NUMERICHOST +/* + * some platforms don't support AI_NUMERICHOST; define as zero if using + * the system version of getaddrinfo... + */ +#if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO) +#define AI_NUMERICHOST 0 +#else +#define AI_NUMERICHOST 0x0004 +#endif +#endif + +#ifndef AI_CANONNAME +#if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO) +#define AI_CANONNAME 0 +#else +#define AI_CANONNAME 0x0008 +#endif +#endif + +#ifndef AI_NUMERICSERV +#if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO) +#define AI_NUMERICSERV 0 +#else +#define AI_NUMERICSERV 0x0010 +#endif +#endif + +#ifndef NI_NUMERICHOST +#define NI_NUMERICHOST 1 +#endif + +#ifndef NI_NUMERICSERV +#define NI_NUMERICSERV 2 +#endif + +#ifndef NI_NOFQDN +#define NI_NOFQDN 4 +#endif + +#ifndef NI_NAMEREQD +#define NI_NAMEREQD 8 +#endif + +#ifndef NI_DGRAM +#define NI_DGRAM 16 +#endif + + +#ifndef NI_MAXHOST +#define NI_MAXHOST 1025 +#endif + +#ifndef NI_MAXSERV +#define NI_MAXSERV 32 +#endif + +#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; +}; +#endif /* !HAVE_STRUCT_ADDRINFO */ + +#ifndef HAVE_STRUCT_SOCKADDR_STORAGE +struct sockaddr_storage { + unsigned short ss_family; + unsigned long ss_align; + char ss_padding[128 - sizeof (unsigned long)]; +}; +#endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */ + +#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 + +#ifdef getnameinfo +#undef getnameinfo +#endif +#define getnameinfo pg_getnameinfo + +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); +extern int getnameinfo(const struct sockaddr * sa, socklen_t salen, + char *node, size_t nodelen, + char *service, size_t servicelen, int flags); +#endif /* !HAVE_GETADDRINFO */ + +#endif /* ADDRINFO_H */ |