#ifndef _GL_NETDB_H
#define _GL_NETDB_H
-#if @HAVE_NETDB_H@
+/* Get netdb.h definitions such as struct hostent for MinGW. */
+#include <sys/socket.h>
+
+/* Declarations for a platform that lacks <netdb.h>, or where it is
+ incomplete. */
+
+#if @GNULIB_GETADDRINFO@
+
+# if !@HAVE_STRUCT_ADDRINFO@
+
+/* Structure to contain information about address of a service provider. */
+struct addrinfo
+{
+ int ai_flags; /* Input flags. */
+ int ai_family; /* Protocol family for socket. */
+ int ai_socktype; /* Socket type. */
+ int ai_protocol; /* Protocol for socket. */
+ socklen_t ai_addrlen; /* Length of socket address. */
+ struct sockaddr *ai_addr; /* Socket address for socket. */
+ char *ai_canonname; /* Canonical name for service location. */
+ struct addrinfo *ai_next; /* Pointer to next in list. */
+};
+# endif
+
+/* Possible values for `ai_flags' field in `addrinfo' structure. */
+# ifndef AI_PASSIVE
+# define AI_PASSIVE 0x0001 /* Socket address is intended for `bind'. */
+# endif
+# ifndef AI_CANONNAME
+# define AI_CANONNAME 0x0002 /* Request for canonical name. */
+# endif
+# ifndef AI_NUMERICSERV
+# define AI_NUMERICSERV 0x0400 /* Don't use name resolution. */
+# endif
-/* Declarations for a platform that has <netdb.h>. */
+# if 0
+/* The commented out definitions below are not yet implemented in the
+ GNULIB getaddrinfo() replacement, so are not yet needed and may, in fact,
+ cause conflicts on systems with a getaddrinfo() function which does not
+ define them.
+
+ If they are restored, be sure to protect the definitions with #ifndef. */
+# define AI_NUMERICHOST 0x0004 /* Don't use name resolution. */
+# define AI_V4MAPPED 0x0008 /* IPv4 mapped addresses are acceptable. */
+# define AI_ALL 0x0010 /* Return IPv4 mapped and IPv6 addresses. */
+# define AI_ADDRCONFIG 0x0020 /* Use configuration of this host to choose
+ returned address type.. */
+# endif /* 0 */
+
+/* Error values for `getaddrinfo' function. */
+# ifndef EAI_BADFLAGS
+# define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */
+# define EAI_NONAME -2 /* NAME or SERVICE is unknown. */
+# define EAI_AGAIN -3 /* Temporary failure in name resolution. */
+# define EAI_FAIL -4 /* Non-recoverable failure in name res. */
+# define EAI_NODATA -5 /* No address associated with NAME. */
+# define EAI_FAMILY -6 /* `ai_family' not supported. */
+# define EAI_SOCKTYPE -7 /* `ai_socktype' not supported. */
+# define EAI_SERVICE -8 /* SERVICE not supported for `ai_socktype'. */
+# define EAI_MEMORY -10 /* Memory allocation failure. */
+# endif
-#else
+/* Since EAI_NODATA is deprecated by RFC3493, some systems (at least
+ FreeBSD, which does define EAI_BADFLAGS) have removed the definition
+ in favor of EAI_NONAME. */
+# if !defined EAI_NODATA && defined EAI_NONAME
+# define EAI_NODATA EAI_NONAME
+# endif
-/* Get netdb.h definitions such as struct hostent for MinGW. */
-#include <sys/socket.h>
+# ifndef EAI_OVERFLOW
+/* Not defined on mingw32 and Haiku. */
+# define EAI_OVERFLOW -12 /* Argument buffer overflow. */
+# endif
+# ifndef EAI_ADDRFAMILY
+/* Not defined on mingw32. */
+# define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */
+# endif
+# ifndef EAI_SYSTEM
+/* Not defined on mingw32. */
+# define EAI_SYSTEM -11 /* System error returned in `errno'. */
+# endif
+
+# if 0
+/* The commented out definitions below are not yet implemented in the
+ GNULIB getaddrinfo() replacement, so are not yet needed.
+
+ If they are restored, be sure to protect the definitions with #ifndef. */
+# ifndef EAI_INPROGRESS
+# define EAI_INPROGRESS -100 /* Processing request in progress. */
+# define EAI_CANCELED -101 /* Request canceled. */
+# define EAI_NOTCANCELED -102 /* Request not canceled. */
+# define EAI_ALLDONE -103 /* All requests done. */
+# define EAI_INTR -104 /* Interrupted by a signal. */
+# define EAI_IDN_ENCODE -105 /* IDN encoding failed. */
+# endif
+# endif
+
+# if !@HAVE_DECL_GETADDRINFO@
+/* Translate name of a service location and/or a service name to set of
+ socket addresses.
+ For more details, see the POSIX:2001 specification
+ <http://www.opengroup.org/susv3xsh/getaddrinfo.html>. */
+extern int getaddrinfo (const char *restrict nodename,
+ const char *restrict servname,
+ const struct addrinfo *restrict hints,
+ struct addrinfo **restrict res);
+# endif
+
+# if !@HAVE_DECL_FREEADDRINFO@
+/* Free `addrinfo' structure AI including associated storage.
+ For more details, see the POSIX:2001 specification
+ <http://www.opengroup.org/susv3xsh/getaddrinfo.html>. */
+extern void freeaddrinfo (struct addrinfo *ai);
+# endif
+
+# if !@HAVE_DECL_GAI_STRERROR@
+/* Convert error return from getaddrinfo() to a string.
+ For more details, see the POSIX:2001 specification
+ <http://www.opengroup.org/susv3xsh/gai_strerror.html>. */
+extern const char *gai_strerror (int ecode);
+# endif
-/* Declarations for a platform that lacks <netdb.h>. */
+# if !@HAVE_DECL_GETNAMEINFO@
+/* Convert socket address to printable node and service names.
+ For more details, see the POSIX:2001 specification
+ <http://www.opengroup.org/susv3xsh/getnameinfo.html>. */
+extern int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
+ char *restrict node, socklen_t nodelen,
+ char *restrict service, socklen_t servicelen,
+ int flags);
+# endif
+
+/* Possible flags for getnameinfo. */
+# ifndef NI_NUMERICHOST
+# define NI_NUMERICHOST 1
+# endif
+# ifndef NI_NUMERICSERV
+# define NI_NUMERICSERV 2
+# endif
-#endif /* HAVE_NETDB_H */
+#endif /* @GNULIB_GETADDRINFO@ */
#endif /* _GL_NETDB_H */
#endif /* _GL_NETDB_H */
projects / gnulib.git / blobdiff