/* Provide a netdb.h header file for systems lacking it (read: MinGW).
- Copyright (C) 2008 Free Software Foundation, Inc.
+ Copyright (C) 2008-2010 Free Software Foundation, Inc.
Written by Simon Josefsson.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
#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@
/* Get netdb.h definitions such as struct hostent for MinGW. */
#include <sys/socket.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. */
/* 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. */
+ 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'. */
+# define AI_PASSIVE 0x0001 /* Socket address is intended for `bind'. */
# endif
# ifndef AI_CANONNAME
-# define AI_CANONNAME 0x0002 /* Request for canonical name. */
+# define AI_CANONNAME 0x0002 /* Request for canonical name. */
# endif
# ifndef AI_NUMERICSERV
-# define AI_NUMERICSERV 0x0400 /* Don't use name resolution. */
+# define AI_NUMERICSERV 0x0400 /* Don't use name resolution. */
# 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.
+# define AI_NUMERICHOST 0x0004 /* Don't use name resolution. */
+# endif
- 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 */
+/* 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
-# 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. */
+# 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
/* Since EAI_NODATA is deprecated by RFC3493, some systems (at least
# ifndef EAI_OVERFLOW
/* Not defined on mingw32 and Haiku. */
-# define EAI_OVERFLOW -12 /* Argument buffer overflow. */
+# 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. */
+# 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'. */
+# define EAI_SYSTEM -11 /* System error returned in `errno'. */
# endif
# if 0
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. */
+# 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
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);
+ const char *restrict servname,
+ const struct addrinfo *restrict hints,
+ struct addrinfo **restrict res)
+ _GL_ARG_NONNULL ((4));
# 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);
+extern void freeaddrinfo (struct addrinfo *ai) _GL_ARG_NONNULL ((1));
# endif
# if !@HAVE_DECL_GAI_STRERROR@
/* 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
/* Possible flags for getnameinfo. */
# 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 */
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