803 lines
33 KiB
C++
803 lines
33 KiB
C++
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
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/* Provide a netdb.h header file for systems lacking it (read: MinGW).
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Copyright (C) 2008-2022 Free Software Foundation, Inc.
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Written by Simon Josefsson.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* This file is supposed to be used on platforms that lack <netdb.h>.
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It is intended to provide definitions and prototypes needed by an
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application. */
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#ifndef _GL_NETDB_H
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#if __GNUC__ >= 3
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#pragma GCC system_header
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#endif
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#if 1
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/* The include_next requires a split double-inclusion guard. */
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# include_next <netdb.h>
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#endif
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#ifndef _GL_NETDB_H
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#define _GL_NETDB_H
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/* Get <netdb.h> definitions such as 'socklen_t' on IRIX 6.5 and OSF/1 4.0 and
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'struct hostent' on MinGW. */
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#include <sys/socket.h>
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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/* C++ compatible function declaration macros.
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Copyright (C) 2010-2022 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _GL_CXXDEFS_H
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#define _GL_CXXDEFS_H
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/* Begin/end the GNULIB_NAMESPACE namespace. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
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# define _GL_END_NAMESPACE }
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#else
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# define _GL_BEGIN_NAMESPACE
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# define _GL_END_NAMESPACE
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#endif
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/* The three most frequent use cases of these macros are:
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* For providing a substitute for a function that is missing on some
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platforms, but is declared and works fine on the platforms on which
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it exists:
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#if @GNULIB_FOO@
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# if !@HAVE_FOO@
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_GL_FUNCDECL_SYS (foo, ...);
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# endif
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_GL_CXXALIAS_SYS (foo, ...);
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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* For providing a replacement for a function that exists on all platforms,
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but is broken/insufficient and needs to be replaced on some platforms:
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#if @GNULIB_FOO@
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# if @REPLACE_FOO@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef foo
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# define foo rpl_foo
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# endif
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_GL_FUNCDECL_RPL (foo, ...);
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_GL_CXXALIAS_RPL (foo, ...);
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# else
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_GL_CXXALIAS_SYS (foo, ...);
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# endif
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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* For providing a replacement for a function that exists on some platforms
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but is broken/insufficient and needs to be replaced on some of them and
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is additionally either missing or undeclared on some other platforms:
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#if @GNULIB_FOO@
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# if @REPLACE_FOO@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef foo
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# define foo rpl_foo
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# endif
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_GL_FUNCDECL_RPL (foo, ...);
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_GL_CXXALIAS_RPL (foo, ...);
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# else
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# if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
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_GL_FUNCDECL_SYS (foo, ...);
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# endif
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_GL_CXXALIAS_SYS (foo, ...);
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# endif
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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*/
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/* _GL_EXTERN_C declaration;
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performs the declaration with C linkage. */
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#if defined __cplusplus
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# define _GL_EXTERN_C extern "C"
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#else
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# define _GL_EXTERN_C extern
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#endif
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/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
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declares a replacement function, named rpl_func, with the given prototype,
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consisting of return type, parameters, and attributes.
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Example:
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_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
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_GL_ARG_NONNULL ((1)));
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*/
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#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
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_GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
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#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C rettype rpl_func parameters_and_attributes
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/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
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declares the system function, named func, with the given prototype,
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consisting of return type, parameters, and attributes.
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Example:
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_GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
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_GL_ARG_NONNULL ((1)));
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*/
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#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C rettype func parameters_and_attributes
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/* _GL_CXXALIAS_RPL (func, rettype, parameters);
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declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
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Example:
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_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
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Wrapping rpl_func in an object with an inline conversion operator
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avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
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actually used in the program. */
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#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
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_GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return ::rpl_func; \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_MDA (func, rettype, parameters);
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is to be used when func is a Microsoft deprecated alias, on native Windows.
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It declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to _func, if GNULIB_NAMESPACE is defined.
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Example:
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_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
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*/
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#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
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_GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
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/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
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is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
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except that the C function rpl_func may have a slightly different
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declaration. A cast is used to silence the "invalid conversion" error
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that would otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>(::rpl_func); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters);
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is like _GL_CXXALIAS_MDA (func, rettype, parameters);
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except that the C function func may have a slightly different declaration.
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A cast is used to silence the "invalid conversion" error that would
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otherwise occur. */
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#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
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_GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
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/* _GL_CXXALIAS_SYS (func, rettype, parameters);
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declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to the system provided function func, if GNULIB_NAMESPACE
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is defined.
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Example:
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_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
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Wrapping func in an object with an inline conversion operator
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avoids a reference to func unless GNULIB_NAMESPACE::func is
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actually used in the program. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return ::func; \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
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is like _GL_CXXALIAS_SYS (func, rettype, parameters);
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except that the C function func may have a slightly different declaration.
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A cast is used to silence the "invalid conversion" error that would
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otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>(::func); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
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is like _GL_CXXALIAS_SYS (func, rettype, parameters);
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except that the C function is picked among a set of overloaded functions,
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namely the one with rettype2 and parameters2. Two consecutive casts
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are used to silence the "cannot find a match" and "invalid conversion"
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errors that would otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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/* The outer cast must be a reinterpret_cast.
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The inner cast: When the function is defined as a set of overloaded
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functions, it works as a static_cast<>, choosing the designated variant.
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When the function is defined as a single variant, it works as a
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reinterpret_cast<>. The parenthesized cast syntax works both ways. */
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# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIASWARN (func);
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causes a warning to be emitted when ::func is used but not when
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GNULIB_NAMESPACE::func is used. func must be defined without overloaded
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variants. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIASWARN(func) \
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_GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
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# define _GL_CXXALIASWARN_1(func,namespace) \
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_GL_CXXALIASWARN_2 (func, namespace)
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/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
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we enable the warning only when not optimizing. */
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# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
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# define _GL_CXXALIASWARN_2(func,namespace) \
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_GL_WARN_ON_USE (func, \
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"The symbol ::" #func " refers to the system function. " \
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"Use " #namespace "::" #func " instead.")
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# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
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# define _GL_CXXALIASWARN_2(func,namespace) \
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extern __typeof__ (func) func
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# else
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# define _GL_CXXALIASWARN_2(func,namespace) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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# endif
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#else
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# define _GL_CXXALIASWARN(func) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
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causes a warning to be emitted when the given overloaded variant of ::func
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is used but not when GNULIB_NAMESPACE::func is used. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
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_GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
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GNULIB_NAMESPACE)
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# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
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_GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
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/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
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we enable the warning only when not optimizing. */
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# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
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# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
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_GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
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"The symbol ::" #func " refers to the system function. " \
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"Use " #namespace "::" #func " instead.")
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# else
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# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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# endif
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#else
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# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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#endif /* _GL_CXXDEFS_H */
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/* The definition of _GL_ARG_NONNULL is copied here. */
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/* A C macro for declaring that specific arguments must not be NULL.
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Copyright (C) 2009-2022 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
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|
under the terms of the GNU Lesser General Public License as published
|
|
by the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
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|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
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You should have received a copy of the GNU Lesser General Public License
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|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
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that the values passed as arguments n, ..., m must be non-NULL pointers.
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n = 1 stands for the first argument, n = 2 for the second argument etc. */
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#ifndef _GL_ARG_NONNULL
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# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
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# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
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# else
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# define _GL_ARG_NONNULL(params)
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# endif
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#endif
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/* The definition of _GL_WARN_ON_USE is copied here. */
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/* A C macro for emitting warnings if a function is used.
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|
Copyright (C) 2010-2022 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
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|
under the terms of the GNU Lesser General Public License as published
|
|
by the Free Software Foundation; either version 2 of the License, or
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|
(at your option) any later version.
|
|
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This program is distributed in the hope that it will be useful,
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|
but WITHOUT ANY WARRANTY; without even the implied warranty of
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|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
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|
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
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for FUNCTION which will then trigger a compiler warning containing
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the text of "literal string" anywhere that function is called, if
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supported by the compiler. If the compiler does not support this
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feature, the macro expands to an unused extern declaration.
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_GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
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attribute used in _GL_WARN_ON_USE. If the compiler does not support
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this feature, it expands to empty.
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These macros are useful for marking a function as a potential
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portability trap, with the intent that "literal string" include
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|
instructions on the replacement function that should be used
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instead.
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_GL_WARN_ON_USE is for functions with 'extern' linkage.
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_GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
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linkage.
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However, one of the reasons that a function is a portability trap is
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if it has the wrong signature. Declaring FUNCTION with a different
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signature in C is a compilation error, so this macro must use the
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same type as any existing declaration so that programs that avoid
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the problematic FUNCTION do not fail to compile merely because they
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included a header that poisoned the function. But this implies that
|
|
_GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
|
|
have a declaration. Use of this macro implies that there must not
|
|
be any other macro hiding the declaration of FUNCTION; but
|
|
undefining FUNCTION first is part of the poisoning process anyway
|
|
(although for symbols that are provided only via a macro, the result
|
|
is a compilation error rather than a warning containing
|
|
"literal string"). Also note that in C++, it is only safe to use if
|
|
FUNCTION has no overloads.
|
|
|
|
For an example, it is possible to poison 'getline' by:
|
|
- adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
|
|
[getline]) in configure.ac, which potentially defines
|
|
HAVE_RAW_DECL_GETLINE
|
|
- adding this code to a header that wraps the system <stdio.h>:
|
|
#undef getline
|
|
#if HAVE_RAW_DECL_GETLINE
|
|
_GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
|
|
"not universally present; use the gnulib module getline");
|
|
#endif
|
|
|
|
It is not possible to directly poison global variables. But it is
|
|
possible to write a wrapper accessor function, and poison that
|
|
(less common usage, like &environ, will cause a compilation error
|
|
rather than issue the nice warning, but the end result of informing
|
|
the developer about their portability problem is still achieved):
|
|
#if HAVE_RAW_DECL_ENVIRON
|
|
static char ***
|
|
rpl_environ (void) { return &environ; }
|
|
_GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
|
|
# undef environ
|
|
# define environ (*rpl_environ ())
|
|
#endif
|
|
or better (avoiding contradictory use of 'static' and 'extern'):
|
|
#if HAVE_RAW_DECL_ENVIRON
|
|
static char ***
|
|
_GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
|
|
rpl_environ (void) { return &environ; }
|
|
# undef environ
|
|
# define environ (*rpl_environ ())
|
|
#endif
|
|
*/
|
|
#ifndef _GL_WARN_ON_USE
|
|
|
|
# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
|
|
/* A compiler attribute is available in gcc versions 4.3.0 and later. */
|
|
# define _GL_WARN_ON_USE(function, message) \
|
|
_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__ (message)))
|
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
|
|
__attribute__ ((__warning__ (message)))
|
|
# elif __clang_major__ >= 4
|
|
/* Another compiler attribute is available in clang. */
|
|
# define _GL_WARN_ON_USE(function, message) \
|
|
_GL_WARN_EXTERN_C __typeof__ (function) function \
|
|
__attribute__ ((__diagnose_if__ (1, message, "warning")))
|
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
|
|
__attribute__ ((__diagnose_if__ (1, message, "warning")))
|
|
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
|
|
/* Verify the existence of the function. */
|
|
# define _GL_WARN_ON_USE(function, message) \
|
|
_GL_WARN_EXTERN_C __typeof__ (function) function
|
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message)
|
|
# else /* Unsupported. */
|
|
# define _GL_WARN_ON_USE(function, message) \
|
|
_GL_WARN_EXTERN_C int _gl_warn_on_use
|
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message)
|
|
# endif
|
|
#endif
|
|
|
|
/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang, parameters_and_attributes, "message")
|
|
is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode the
|
|
function is declared with the given prototype, consisting of return type,
|
|
parameters, and attributes.
|
|
This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
|
|
not work in this case. */
|
|
#ifndef _GL_WARN_ON_USE_CXX
|
|
# if !defined __cplusplus
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
_GL_WARN_ON_USE (function, msg)
|
|
# else
|
|
# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
|
|
/* A compiler attribute is available in gcc versions 4.3.0 and later. */
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
extern rettype_gcc function parameters_and_attributes \
|
|
__attribute__ ((__warning__ (msg)))
|
|
# elif __clang_major__ >= 4
|
|
/* Another compiler attribute is available in clang. */
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
extern rettype_clang function parameters_and_attributes \
|
|
__attribute__ ((__diagnose_if__ (1, msg, "warning")))
|
|
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
|
|
/* Verify the existence of the function. */
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
extern rettype_gcc function parameters_and_attributes
|
|
# else /* Unsupported. */
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
_GL_WARN_EXTERN_C int _gl_warn_on_use
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
/* _GL_WARN_EXTERN_C declaration;
|
|
performs the declaration with C linkage. */
|
|
#ifndef _GL_WARN_EXTERN_C
|
|
# if defined __cplusplus
|
|
# define _GL_WARN_EXTERN_C extern "C"
|
|
# else
|
|
# define _GL_WARN_EXTERN_C extern
|
|
# endif
|
|
#endif
|
|
|
|
/* Declarations for a platform that lacks <netdb.h>, or where it is
|
|
incomplete. */
|
|
|
|
#if 1
|
|
|
|
# if !1
|
|
|
|
# ifdef __cplusplus
|
|
extern "C" {
|
|
# endif
|
|
|
|
# if !GNULIB_defined_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. */
|
|
};
|
|
# define GNULIB_defined_struct_addrinfo 1
|
|
# endif
|
|
|
|
# ifdef __cplusplus
|
|
}
|
|
# endif
|
|
|
|
# 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
|
|
|
|
# if 0
|
|
# define AI_NUMERICHOST 0x0004 /* Don't use name resolution. */
|
|
# 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
|
|
# 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
|
|
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
|
|
|
|
# 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
|
|
|
|
/* Translate name of a service location and/or a service name to set of
|
|
socket addresses.
|
|
For more details, see the POSIX:2008 specification
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html>. */
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef getaddrinfo
|
|
# define getaddrinfo rpl_getaddrinfo
|
|
# endif
|
|
_GL_FUNCDECL_RPL (getaddrinfo, int,
|
|
(const char *restrict nodename,
|
|
const char *restrict servname,
|
|
const struct addrinfo *restrict hints,
|
|
struct addrinfo **restrict res)
|
|
_GL_ARG_NONNULL ((4)));
|
|
_GL_CXXALIAS_RPL (getaddrinfo, int,
|
|
(const char *restrict nodename,
|
|
const char *restrict servname,
|
|
const struct addrinfo *restrict hints,
|
|
struct addrinfo **restrict res));
|
|
# else
|
|
# if !1
|
|
_GL_FUNCDECL_SYS (getaddrinfo, int,
|
|
(const char *restrict nodename,
|
|
const char *restrict servname,
|
|
const struct addrinfo *restrict hints,
|
|
struct addrinfo **restrict res)
|
|
_GL_ARG_NONNULL ((4)));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (getaddrinfo, int,
|
|
(const char *restrict nodename,
|
|
const char *restrict servname,
|
|
const struct addrinfo *restrict hints,
|
|
struct addrinfo **restrict res));
|
|
# endif
|
|
_GL_CXXALIASWARN (getaddrinfo);
|
|
|
|
/* Free 'addrinfo' structure AI including associated storage.
|
|
For more details, see the POSIX:2008 specification
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html>. */
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef freeaddrinfo
|
|
# define freeaddrinfo rpl_freeaddrinfo
|
|
# endif
|
|
_GL_FUNCDECL_RPL (freeaddrinfo, void, (struct addrinfo *ai)
|
|
_GL_ARG_NONNULL ((1)));
|
|
_GL_CXXALIAS_RPL (freeaddrinfo, void, (struct addrinfo *ai));
|
|
# else
|
|
# if !1
|
|
_GL_FUNCDECL_SYS (freeaddrinfo, void, (struct addrinfo *ai)
|
|
_GL_ARG_NONNULL ((1)));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (freeaddrinfo, void, (struct addrinfo *ai));
|
|
# endif
|
|
_GL_CXXALIASWARN (freeaddrinfo);
|
|
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef gai_strerror
|
|
# define gai_strerror rpl_gai_strerror
|
|
# endif
|
|
_GL_FUNCDECL_RPL (gai_strerror, const char *, (int ecode));
|
|
_GL_CXXALIAS_RPL (gai_strerror, const char *, (int ecode));
|
|
# else
|
|
# if !1
|
|
/* Convert error return from getaddrinfo() to a string.
|
|
For more details, see the POSIX:2008 specification
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/gai_strerror.html>. */
|
|
_GL_FUNCDECL_SYS (gai_strerror, const char *, (int ecode));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (gai_strerror, const char *, (int ecode));
|
|
# endif
|
|
# if __GLIBC__ >= 2
|
|
_GL_CXXALIASWARN (gai_strerror);
|
|
# endif
|
|
|
|
# if !1
|
|
/* Convert socket address to printable node and service names.
|
|
For more details, see the POSIX:2008 specification
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/getnameinfo.html>. */
|
|
_GL_FUNCDECL_SYS (getnameinfo, int,
|
|
(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
|
|
/* Need to cast, because on glibc systems, the seventh parameter is
|
|
unsigned int flags. */
|
|
_GL_CXXALIAS_SYS_CAST (getnameinfo, int,
|
|
(const struct sockaddr *restrict sa, socklen_t salen,
|
|
char *restrict node, socklen_t nodelen,
|
|
char *restrict service, socklen_t servicelen,
|
|
int flags));
|
|
_GL_CXXALIASWARN (getnameinfo);
|
|
|
|
/* Possible flags for getnameinfo. */
|
|
# ifndef NI_NUMERICHOST
|
|
# define NI_NUMERICHOST 1
|
|
# endif
|
|
# ifndef NI_NUMERICSERV
|
|
# define NI_NUMERICSERV 2
|
|
# endif
|
|
|
|
#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 */
|