init

db_include/getaddrinfo.h

@@ -0,0 +1,162 @@
+/*-------------------------------------------------------------------------
+ *
+ * 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) 2003-2021, PostgreSQL Global Development Group
+ *
+ * src/include/getaddrinfo.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef GETADDRINFO_H
+#define GETADDRINFO_H
+
+#include <sys/socket.h>
+#include <netdb.h>
+
+
+/* Various macros that ought to be in <netdb.h>, but might not be */
+
+#ifndef EAI_FAIL
+#ifndef WIN32
+#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)
+#else							/* WIN32 */
+#ifdef _MSC_VER
+#ifndef WSA_NOT_ENOUGH_MEMORY
+#define WSA_NOT_ENOUGH_MEMORY	(WSAENOBUFS)
+#endif
+#define WSATYPE_NOT_FOUND		(WSABASEERR+109)
+#endif
+#define EAI_AGAIN		WSATRY_AGAIN
+#define EAI_BADFLAGS	WSAEINVAL
+#define EAI_FAIL		WSANO_RECOVERY
+#define EAI_FAMILY		WSAEAFNOSUPPORT
+#define EAI_MEMORY		WSA_NOT_ENOUGH_MEMORY
+#define EAI_NODATA		WSANO_DATA
+#define EAI_NONAME		WSAHOST_NOT_FOUND
+#define EAI_SERVICE		WSATYPE_NOT_FOUND
+#define EAI_SOCKTYPE	WSAESOCKTNOSUPPORT
+#endif							/* !WIN32 */
+#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 NI_NUMERICHOST
+#define NI_NUMERICHOST	1
+#endif
+#ifndef NI_NUMERICSERV
+#define NI_NUMERICSERV	2
+#endif
+#ifndef NI_NAMEREQD
+#define NI_NAMEREQD		4
+#endif
+
+#ifndef NI_MAXHOST
+#define NI_MAXHOST	1025
+#endif
+#ifndef NI_MAXSERV
+#define NI_MAXSERV	32
+#endif
+
+
+#ifndef HAVE_STRUCT_ADDRINFO
+
+#ifndef WIN32
+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;
+};
+#else
+/*
+ *	The order of the structure elements on Win32 doesn't match the
+ *	order specified in the standard, but we have to match it for
+ *	IPv6 to work.
+ */
+struct addrinfo
+{
+	int			ai_flags;
+	int			ai_family;
+	int			ai_socktype;
+	int			ai_protocol;
+	size_t		ai_addrlen;
+	char	   *ai_canonname;
+	struct sockaddr *ai_addr;
+	struct addrinfo *ai_next;
+};
+#endif
+#endif							/* HAVE_STRUCT_ADDRINFO */
+
+
+#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, int salen,
+						char *node, int nodelen,
+						char *service, int servicelen, int flags);
+#endif							/* HAVE_GETADDRINFO */
+
+#endif							/* GETADDRINFO_H */