#ifndef _GL_NETDB_H
-#if @HAVE_NETDB_H@
-
-# if __GNUC__ >= 3
+#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
-# endif
+#endif
+
+#if @HAVE_NETDB_H@
/* The include_next requires a split double-inclusion guard. */
# @INCLUDE_NEXT@ @NEXT_NETDB_H@
/* The definition of _GL_ARG_NONNULL is copied here. */
+/* The definition of _GL_WARN_ON_USE is copied here. */
+
/* Declarations for a platform that lacks <netdb.h>, or where it is
incomplete. */
# endif
# 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 */
+# endif
+
+/* These symbolic constants are required to be present by POSIX, but
+ our getaddrinfo replacement doesn't use them (yet). Setting them
+ to 0 on systems that doesn't have them avoids causing problems for
+ system getaddrinfo implementations that would be confused by
+ unknown values. */
+# ifndef AI_V4MAPPED
+# define AI_V4MAPPED 0 /* 0x0008: IPv4 mapped addresses are acceptable. */
+# endif
+# ifndef AI_ALL
+# define AI_ALL 0 /* 0x0010: Return IPv4 mapped and IPv6 addresses. */
+# endif
+# ifndef AI_ADDRCONFIG
+# define AI_ADDRCONFIG 0 /* 0x0020: Use configuration of this host to choose
+ returned address type. */
+# endif
/* Error values for `getaddrinfo' function. */
# ifndef EAI_BADFLAGS
/* 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)
+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)
_GL_ARG_NONNULL ((1));
# endif
# define NI_NUMERICSERV 2
# endif
-#endif /* @GNULIB_GETADDRINFO@ */
+#elif defined GNULIB_POSIXCHECK
+
+# undef getaddrinfo
+# if HAVE_RAW_DECL_GETADDRINFO
+_GL_WARN_ON_USE (getaddrinfo, "getaddrinfo is unportable - "
+ "use gnulib module getaddrinfo for portability");
+# endif
+
+# undef freeaddrinfo
+# if HAVE_RAW_DECL_FREEADDRINFO
+_GL_WARN_ON_USE (freeaddrinfo, "freeaddrinfo is unportable - "
+ "use gnulib module getaddrinfo for portability");
+# endif
+
+# undef gai_strerror
+# if HAVE_RAW_DECL_GAI_STRERROR
+_GL_WARN_ON_USE (gai_strerror, "gai_strerror is unportable - "
+ "use gnulib module getaddrinfo for portability");
+# endif
+
+# undef getnameinfo
+# if HAVE_RAW_DECL_GETNAMEINFO
+_GL_WARN_ON_USE (getnameinfo, "getnameinfo is unportable - "
+ "use gnulib module getaddrinfo for portability");
+# endif
+
+#endif
#endif /* _GL_NETDB_H */
#endif /* _GL_NETDB_H */