105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* DO NOT EDIT! GENERATED AUTOMATICALLY! */ 205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Substitute for and wrapper around <unistd.h>. 305436638acc7c010349a69c3395f1a57c642dc62Ying Wang Copyright (C) 2003-2012 Free Software Foundation, Inc. 405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 505436638acc7c010349a69c3395f1a57c642dc62Ying Wang This program is free software; you can redistribute it and/or modify 605436638acc7c010349a69c3395f1a57c642dc62Ying Wang it under the terms of the GNU General Public License as published by 705436638acc7c010349a69c3395f1a57c642dc62Ying Wang the Free Software Foundation; either version 3, or (at your option) 805436638acc7c010349a69c3395f1a57c642dc62Ying Wang any later version. 905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1005436638acc7c010349a69c3395f1a57c642dc62Ying Wang This program is distributed in the hope that it will be useful, 1105436638acc7c010349a69c3395f1a57c642dc62Ying Wang but WITHOUT ANY WARRANTY; without even the implied warranty of 1205436638acc7c010349a69c3395f1a57c642dc62Ying Wang MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1305436638acc7c010349a69c3395f1a57c642dc62Ying Wang GNU General Public License for more details. 1405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1505436638acc7c010349a69c3395f1a57c642dc62Ying Wang You should have received a copy of the GNU General Public License 1605436638acc7c010349a69c3395f1a57c642dc62Ying Wang along with this program; if not, see <http://www.gnu.org/licenses/>. */ 1705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if __GNUC__ >= 3 1905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#pragma GCC system_header 2005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 2105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 2205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 2305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Special invocation convention: 2405436638acc7c010349a69c3395f1a57c642dc62Ying Wang - On mingw, several headers, including <winsock2.h>, include <unistd.h>, 2505436638acc7c010349a69c3395f1a57c642dc62Ying Wang but we need to ensure that both the system <unistd.h> and <winsock2.h> 2605436638acc7c010349a69c3395f1a57c642dc62Ying Wang are completely included before we replace gethostname. */ 2705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 && 0 \ 2805436638acc7c010349a69c3395f1a57c642dc62Ying Wang && !defined _GL_WINSOCK2_H_WITNESS && defined _WINSOCK2_H 2905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* <unistd.h> is being indirectly included for the first time from 3005436638acc7c010349a69c3395f1a57c642dc62Ying Wang <winsock2.h>; avoid declaring any overrides. */ 3105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 1 3205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include_next <unistd.h> 3305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 3405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# error unexpected; report this to bug-gnulib@gnu.org 3505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 3605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WINSOCK2_H_WITNESS 3705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Normal invocation. */ 3905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif !defined _GL_UNISTD_H 4005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The include_next requires a split double-inclusion guard. */ 4205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 1 4305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include_next <unistd.h> 4405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 4505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Get all possible declarations of gethostname(). */ 4705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 && 0 \ 4805436638acc7c010349a69c3395f1a57c642dc62Ying Wang && !defined _GL_INCLUDING_WINSOCK2_H 4905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_INCLUDING_WINSOCK2_H 5005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <winsock2.h> 5105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef _GL_INCLUDING_WINSOCK2_H 5205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 5305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 5405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if !defined _GL_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H 5505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#define _GL_UNISTD_H 5605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 5705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* NetBSD 5.0 mis-defines NULL. Also get size_t. */ 5805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#include <stddef.h> 5905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 6005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>. */ 6105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>. */ 6205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* But avoid namespace pollution on glibc systems. */ 6305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \ 6405436638acc7c010349a69c3395f1a57c642dc62Ying Wang || ((0 || defined GNULIB_POSIXCHECK) \ 6505436638acc7c010349a69c3395f1a57c642dc62Ying Wang && defined __CYGWIN__)) \ 6605436638acc7c010349a69c3395f1a57c642dc62Ying Wang && ! defined __GLIBC__ 6705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <stdio.h> 6805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 6905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 7005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>. */ 7105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* But avoid namespace pollution on glibc systems. */ 7205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if (0 || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \ 7305436638acc7c010349a69c3395f1a57c642dc62Ying Wang && ! defined __GLIBC__ 7405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <fcntl.h> 7505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 7605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 7705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* mingw fails to declare _exit in <unistd.h>. */ 7805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in 7905436638acc7c010349a69c3395f1a57c642dc62Ying Wang <unistd.h>. */ 8005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */ 8105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* But avoid namespace pollution on glibc systems. */ 8205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef __GLIBC__ 8305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <stdlib.h> 8405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 8505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 8605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Native Windows platforms declare chdir, getcwd, rmdir in 8705436638acc7c010349a69c3395f1a57c642dc62Ying Wang <io.h> and/or <direct.h>, not in <unistd.h>. 8805436638acc7c010349a69c3395f1a57c642dc62Ying Wang They also declare access(), chmod(), close(), dup(), dup2(), isatty(), 8905436638acc7c010349a69c3395f1a57c642dc62Ying Wang lseek(), read(), unlink(), write() in <io.h>. */ 9005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if ((0 || 0 || 0 \ 9105436638acc7c010349a69c3395f1a57c642dc62Ying Wang || defined GNULIB_POSIXCHECK) \ 9205436638acc7c010349a69c3395f1a57c642dc62Ying Wang && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) 9305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <io.h> /* mingw32, mingw64 */ 9405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <direct.h> /* mingw64, MSVC 9 */ 9505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif (1 || 0 || 1 || 0 \ 9605436638acc7c010349a69c3395f1a57c642dc62Ying Wang || 0 || 0 || 0 || 0 \ 9705436638acc7c010349a69c3395f1a57c642dc62Ying Wang || defined GNULIB_POSIXCHECK) \ 9805436638acc7c010349a69c3395f1a57c642dc62Ying Wang && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) 9905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <io.h> 10005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 10105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 10205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>. 10305436638acc7c010349a69c3395f1a57c642dc62Ying Wang NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>. */ 10405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* But avoid namespace pollution on glibc systems. */ 10505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if ((0 && (defined _AIX || defined __osf__)) \ 10605436638acc7c010349a69c3395f1a57c642dc62Ying Wang || (0 && defined __TANDEM)) \ 10705436638acc7c010349a69c3395f1a57c642dc62Ying Wang && !defined __GLIBC__ 10805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <netdb.h> 10905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 11005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 11105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* MSVC defines off_t in <sys/types.h>. 11205436638acc7c010349a69c3395f1a57c642dc62Ying Wang May also define off_t to a 64-bit type on native Windows. */ 11305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if !1 || 0 11405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Get off_t. */ 11505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <sys/types.h> 11605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 11705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 11805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if (0 || 0 \ 11905436638acc7c010349a69c3395f1a57c642dc62Ying Wang || 0 || 0 \ 12005436638acc7c010349a69c3395f1a57c642dc62Ying Wang || 0 || 0 || defined GNULIB_POSIXCHECK) 12105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Get ssize_t. */ 12205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <sys/types.h> 12305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 12405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 12505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Get getopt(), optarg, optind, opterr, optopt. 12605436638acc7c010349a69c3395f1a57c642dc62Ying Wang But avoid namespace pollution on glibc systems. */ 12705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 01 && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT 12805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <getopt.h> 12905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 13005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 13105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_INLINE_HEADER_BEGIN 13205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef _GL_UNISTD_INLINE 13305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_UNISTD_INLINE _GL_INLINE 13405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 13505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 13605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 13705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef _GL_CXXDEFS_H 13805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#define _GL_CXXDEFS_H 13905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 14005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The three most frequent use cases of these macros are: 14105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 14205436638acc7c010349a69c3395f1a57c642dc62Ying Wang * For providing a substitute for a function that is missing on some 14305436638acc7c010349a69c3395f1a57c642dc62Ying Wang platforms, but is declared and works fine on the platforms on which 14405436638acc7c010349a69c3395f1a57c642dc62Ying Wang it exists: 14505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 14605436638acc7c010349a69c3395f1a57c642dc62Ying Wang #if @GNULIB_FOO@ 14705436638acc7c010349a69c3395f1a57c642dc62Ying Wang # if !@HAVE_FOO@ 14805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_FUNCDECL_SYS (foo, ...); 14905436638acc7c010349a69c3395f1a57c642dc62Ying Wang # endif 15005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIAS_SYS (foo, ...); 15105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIASWARN (foo); 15205436638acc7c010349a69c3395f1a57c642dc62Ying Wang #elif defined GNULIB_POSIXCHECK 15305436638acc7c010349a69c3395f1a57c642dc62Ying Wang ... 15405436638acc7c010349a69c3395f1a57c642dc62Ying Wang #endif 15505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 15605436638acc7c010349a69c3395f1a57c642dc62Ying Wang * For providing a replacement for a function that exists on all platforms, 15705436638acc7c010349a69c3395f1a57c642dc62Ying Wang but is broken/insufficient and needs to be replaced on some platforms: 15805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 15905436638acc7c010349a69c3395f1a57c642dc62Ying Wang #if @GNULIB_FOO@ 16005436638acc7c010349a69c3395f1a57c642dc62Ying Wang # if @REPLACE_FOO@ 16105436638acc7c010349a69c3395f1a57c642dc62Ying Wang # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 16205436638acc7c010349a69c3395f1a57c642dc62Ying Wang # undef foo 16305436638acc7c010349a69c3395f1a57c642dc62Ying Wang # define foo rpl_foo 16405436638acc7c010349a69c3395f1a57c642dc62Ying Wang # endif 16505436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_FUNCDECL_RPL (foo, ...); 16605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIAS_RPL (foo, ...); 16705436638acc7c010349a69c3395f1a57c642dc62Ying Wang # else 16805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIAS_SYS (foo, ...); 16905436638acc7c010349a69c3395f1a57c642dc62Ying Wang # endif 17005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIASWARN (foo); 17105436638acc7c010349a69c3395f1a57c642dc62Ying Wang #elif defined GNULIB_POSIXCHECK 17205436638acc7c010349a69c3395f1a57c642dc62Ying Wang ... 17305436638acc7c010349a69c3395f1a57c642dc62Ying Wang #endif 17405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 17505436638acc7c010349a69c3395f1a57c642dc62Ying Wang * For providing a replacement for a function that exists on some platforms 17605436638acc7c010349a69c3395f1a57c642dc62Ying Wang but is broken/insufficient and needs to be replaced on some of them and 17705436638acc7c010349a69c3395f1a57c642dc62Ying Wang is additionally either missing or undeclared on some other platforms: 17805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 17905436638acc7c010349a69c3395f1a57c642dc62Ying Wang #if @GNULIB_FOO@ 18005436638acc7c010349a69c3395f1a57c642dc62Ying Wang # if @REPLACE_FOO@ 18105436638acc7c010349a69c3395f1a57c642dc62Ying Wang # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 18205436638acc7c010349a69c3395f1a57c642dc62Ying Wang # undef foo 18305436638acc7c010349a69c3395f1a57c642dc62Ying Wang # define foo rpl_foo 18405436638acc7c010349a69c3395f1a57c642dc62Ying Wang # endif 18505436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_FUNCDECL_RPL (foo, ...); 18605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIAS_RPL (foo, ...); 18705436638acc7c010349a69c3395f1a57c642dc62Ying Wang # else 18805436638acc7c010349a69c3395f1a57c642dc62Ying Wang # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@ 18905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_FUNCDECL_SYS (foo, ...); 19005436638acc7c010349a69c3395f1a57c642dc62Ying Wang # endif 19105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIAS_SYS (foo, ...); 19205436638acc7c010349a69c3395f1a57c642dc62Ying Wang # endif 19305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIASWARN (foo); 19405436638acc7c010349a69c3395f1a57c642dc62Ying Wang #elif defined GNULIB_POSIXCHECK 19505436638acc7c010349a69c3395f1a57c642dc62Ying Wang ... 19605436638acc7c010349a69c3395f1a57c642dc62Ying Wang #endif 19705436638acc7c010349a69c3395f1a57c642dc62Ying Wang*/ 19805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 19905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_EXTERN_C declaration; 20005436638acc7c010349a69c3395f1a57c642dc62Ying Wang performs the declaration with C linkage. */ 20105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined __cplusplus 20205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_EXTERN_C extern "C" 20305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 20405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_EXTERN_C extern 20505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 20605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 20705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); 20805436638acc7c010349a69c3395f1a57c642dc62Ying Wang declares a replacement function, named rpl_func, with the given prototype, 20905436638acc7c010349a69c3395f1a57c642dc62Ying Wang consisting of return type, parameters, and attributes. 21005436638acc7c010349a69c3395f1a57c642dc62Ying Wang Example: 21105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) 21205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 21305436638acc7c010349a69c3395f1a57c642dc62Ying Wang */ 21405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ 21505436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) 21605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ 21705436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C rettype rpl_func parameters_and_attributes 21805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 21905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); 22005436638acc7c010349a69c3395f1a57c642dc62Ying Wang declares the system function, named func, with the given prototype, 22105436638acc7c010349a69c3395f1a57c642dc62Ying Wang consisting of return type, parameters, and attributes. 22205436638acc7c010349a69c3395f1a57c642dc62Ying Wang Example: 22305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) 22405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 22505436638acc7c010349a69c3395f1a57c642dc62Ying Wang */ 22605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ 22705436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C rettype func parameters_and_attributes 22805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 22905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_CXXALIAS_RPL (func, rettype, parameters); 23005436638acc7c010349a69c3395f1a57c642dc62Ying Wang declares a C++ alias called GNULIB_NAMESPACE::func 23105436638acc7c010349a69c3395f1a57c642dc62Ying Wang that redirects to rpl_func, if GNULIB_NAMESPACE is defined. 23205436638acc7c010349a69c3395f1a57c642dc62Ying Wang Example: 23305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); 23405436638acc7c010349a69c3395f1a57c642dc62Ying Wang */ 23505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#define _GL_CXXALIAS_RPL(func,rettype,parameters) \ 23605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) 23705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined __cplusplus && defined GNULIB_NAMESPACE 23805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ 23905436638acc7c010349a69c3395f1a57c642dc62Ying Wang namespace GNULIB_NAMESPACE \ 24005436638acc7c010349a69c3395f1a57c642dc62Ying Wang { \ 24105436638acc7c010349a69c3395f1a57c642dc62Ying Wang rettype (*const func) parameters = ::rpl_func; \ 24205436638acc7c010349a69c3395f1a57c642dc62Ying Wang } \ 24305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 24405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 24505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ 24605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 24705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 24805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 24905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters); 25005436638acc7c010349a69c3395f1a57c642dc62Ying Wang is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters); 25105436638acc7c010349a69c3395f1a57c642dc62Ying Wang except that the C function rpl_func may have a slightly different 25205436638acc7c010349a69c3395f1a57c642dc62Ying Wang declaration. A cast is used to silence the "invalid conversion" error 25305436638acc7c010349a69c3395f1a57c642dc62Ying Wang that would otherwise occur. */ 25405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined __cplusplus && defined GNULIB_NAMESPACE 25505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ 25605436638acc7c010349a69c3395f1a57c642dc62Ying Wang namespace GNULIB_NAMESPACE \ 25705436638acc7c010349a69c3395f1a57c642dc62Ying Wang { \ 25805436638acc7c010349a69c3395f1a57c642dc62Ying Wang rettype (*const func) parameters = \ 25905436638acc7c010349a69c3395f1a57c642dc62Ying Wang reinterpret_cast<rettype(*)parameters>(::rpl_func); \ 26005436638acc7c010349a69c3395f1a57c642dc62Ying Wang } \ 26105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 26205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 26305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ 26405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 26505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 26605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 26705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_CXXALIAS_SYS (func, rettype, parameters); 26805436638acc7c010349a69c3395f1a57c642dc62Ying Wang declares a C++ alias called GNULIB_NAMESPACE::func 26905436638acc7c010349a69c3395f1a57c642dc62Ying Wang that redirects to the system provided function func, if GNULIB_NAMESPACE 27005436638acc7c010349a69c3395f1a57c642dc62Ying Wang is defined. 27105436638acc7c010349a69c3395f1a57c642dc62Ying Wang Example: 27205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); 27305436638acc7c010349a69c3395f1a57c642dc62Ying Wang */ 27405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined __cplusplus && defined GNULIB_NAMESPACE 27505436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* If we were to write 27605436638acc7c010349a69c3395f1a57c642dc62Ying Wang rettype (*const func) parameters = ::func; 27705436638acc7c010349a69c3395f1a57c642dc62Ying Wang like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls 27805436638acc7c010349a69c3395f1a57c642dc62Ying Wang better (remove an indirection through a 'static' pointer variable), 27905436638acc7c010349a69c3395f1a57c642dc62Ying Wang but then the _GL_CXXALIASWARN macro below would cause a warning not only 28005436638acc7c010349a69c3395f1a57c642dc62Ying Wang for uses of ::func but also for uses of GNULIB_NAMESPACE::func. */ 28105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_SYS(func,rettype,parameters) \ 28205436638acc7c010349a69c3395f1a57c642dc62Ying Wang namespace GNULIB_NAMESPACE \ 28305436638acc7c010349a69c3395f1a57c642dc62Ying Wang { \ 28405436638acc7c010349a69c3395f1a57c642dc62Ying Wang static rettype (*func) parameters = ::func; \ 28505436638acc7c010349a69c3395f1a57c642dc62Ying Wang } \ 28605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 28705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 28805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_SYS(func,rettype,parameters) \ 28905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 29005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 29105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 29205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters); 29305436638acc7c010349a69c3395f1a57c642dc62Ying Wang is like _GL_CXXALIAS_SYS (func, rettype, parameters); 29405436638acc7c010349a69c3395f1a57c642dc62Ying Wang except that the C function func may have a slightly different declaration. 29505436638acc7c010349a69c3395f1a57c642dc62Ying Wang A cast is used to silence the "invalid conversion" error that would 29605436638acc7c010349a69c3395f1a57c642dc62Ying Wang otherwise occur. */ 29705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined __cplusplus && defined GNULIB_NAMESPACE 29805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ 29905436638acc7c010349a69c3395f1a57c642dc62Ying Wang namespace GNULIB_NAMESPACE \ 30005436638acc7c010349a69c3395f1a57c642dc62Ying Wang { \ 30105436638acc7c010349a69c3395f1a57c642dc62Ying Wang static rettype (*func) parameters = \ 30205436638acc7c010349a69c3395f1a57c642dc62Ying Wang reinterpret_cast<rettype(*)parameters>(::func); \ 30305436638acc7c010349a69c3395f1a57c642dc62Ying Wang } \ 30405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 30505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 30605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ 30705436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 30805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 30905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 31005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2); 31105436638acc7c010349a69c3395f1a57c642dc62Ying Wang is like _GL_CXXALIAS_SYS (func, rettype, parameters); 31205436638acc7c010349a69c3395f1a57c642dc62Ying Wang except that the C function is picked among a set of overloaded functions, 31305436638acc7c010349a69c3395f1a57c642dc62Ying Wang namely the one with rettype2 and parameters2. Two consecutive casts 31405436638acc7c010349a69c3395f1a57c642dc62Ying Wang are used to silence the "cannot find a match" and "invalid conversion" 31505436638acc7c010349a69c3395f1a57c642dc62Ying Wang errors that would otherwise occur. */ 31605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined __cplusplus && defined GNULIB_NAMESPACE 31705436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* The outer cast must be a reinterpret_cast. 31805436638acc7c010349a69c3395f1a57c642dc62Ying Wang The inner cast: When the function is defined as a set of overloaded 31905436638acc7c010349a69c3395f1a57c642dc62Ying Wang functions, it works as a static_cast<>, choosing the designated variant. 32005436638acc7c010349a69c3395f1a57c642dc62Ying Wang When the function is defined as a single variant, it works as a 32105436638acc7c010349a69c3395f1a57c642dc62Ying Wang reinterpret_cast<>. The parenthesized cast syntax works both ways. */ 32205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ 32305436638acc7c010349a69c3395f1a57c642dc62Ying Wang namespace GNULIB_NAMESPACE \ 32405436638acc7c010349a69c3395f1a57c642dc62Ying Wang { \ 32505436638acc7c010349a69c3395f1a57c642dc62Ying Wang static rettype (*func) parameters = \ 32605436638acc7c010349a69c3395f1a57c642dc62Ying Wang reinterpret_cast<rettype(*)parameters>( \ 32705436638acc7c010349a69c3395f1a57c642dc62Ying Wang (rettype2(*)parameters2)(::func)); \ 32805436638acc7c010349a69c3395f1a57c642dc62Ying Wang } \ 32905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 33005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 33105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ 33205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 33305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 33405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 33505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_CXXALIASWARN (func); 33605436638acc7c010349a69c3395f1a57c642dc62Ying Wang causes a warning to be emitted when ::func is used but not when 33705436638acc7c010349a69c3395f1a57c642dc62Ying Wang GNULIB_NAMESPACE::func is used. func must be defined without overloaded 33805436638acc7c010349a69c3395f1a57c642dc62Ying Wang variants. */ 33905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined __cplusplus && defined GNULIB_NAMESPACE 34005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN(func) \ 34105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) 34205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN_1(func,namespace) \ 34305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIASWARN_2 (func, namespace) 34405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, 34505436638acc7c010349a69c3395f1a57c642dc62Ying Wang we enable the warning only when not optimizing. */ 34605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !__OPTIMIZE__ 34705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN_2(func,namespace) \ 34805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (func, \ 34905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "The symbol ::" #func " refers to the system function. " \ 35005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "Use " #namespace "::" #func " instead.") 35105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 35205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN_2(func,namespace) \ 35305436638acc7c010349a69c3395f1a57c642dc62Ying Wang extern __typeof__ (func) func 35405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 35505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN_2(func,namespace) \ 35605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 35705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 35805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 35905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN(func) \ 36005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 36105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 36205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 36305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes); 36405436638acc7c010349a69c3395f1a57c642dc62Ying Wang causes a warning to be emitted when the given overloaded variant of ::func 36505436638acc7c010349a69c3395f1a57c642dc62Ying Wang is used but not when GNULIB_NAMESPACE::func is used. */ 36605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined __cplusplus && defined GNULIB_NAMESPACE 36705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ 36805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \ 36905436638acc7c010349a69c3395f1a57c642dc62Ying Wang GNULIB_NAMESPACE) 37005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ 37105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) 37205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, 37305436638acc7c010349a69c3395f1a57c642dc62Ying Wang we enable the warning only when not optimizing. */ 37405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !__OPTIMIZE__ 37505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 37605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ 37705436638acc7c010349a69c3395f1a57c642dc62Ying Wang "The symbol ::" #func " refers to the system function. " \ 37805436638acc7c010349a69c3395f1a57c642dc62Ying Wang "Use " #namespace "::" #func " instead.") 37905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 38005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 38105436638acc7c010349a69c3395f1a57c642dc62Ying Wang extern __typeof__ (func) func 38205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 38305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 38405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 38505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 38605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 38705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ 38805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_EXTERN_C int _gl_cxxalias_dummy 38905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 39005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 39105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif /* _GL_CXXDEFS_H */ 39205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 39305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The definition of _GL_ARG_NONNULL is copied here. */ 39405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools 39505436638acc7c010349a69c3395f1a57c642dc62Ying Wang that the values passed as arguments n, ..., m must be non-NULL pointers. 39605436638acc7c010349a69c3395f1a57c642dc62Ying Wang n = 1 stands for the first argument, n = 2 for the second argument etc. */ 39705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef _GL_ARG_NONNULL 39805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3 39905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) 40005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 40105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_ARG_NONNULL(params) 40205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 40305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 40405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 40505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The definition of _GL_WARN_ON_USE is copied here. */ 40605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef _GL_WARN_ON_USE 40705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 40805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) 40905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* A compiler attribute is available in gcc versions 4.3.0 and later. */ 41005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WARN_ON_USE(function, message) \ 41105436638acc7c010349a69c3395f1a57c642dc62Ying Wangextern __typeof__ (function) function __attribute__ ((__warning__ (message))) 41205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 41305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Verify the existence of the function. */ 41405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WARN_ON_USE(function, message) \ 41505436638acc7c010349a69c3395f1a57c642dc62Ying Wangextern __typeof__ (function) function 41605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else /* Unsupported. */ 41705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WARN_ON_USE(function, message) \ 41805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_EXTERN_C int _gl_warn_on_use 41905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 42005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 42105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 42205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string") 42305436638acc7c010349a69c3395f1a57c642dc62Ying Wang is like _GL_WARN_ON_USE (function, "string"), except that the function is 42405436638acc7c010349a69c3395f1a57c642dc62Ying Wang declared with the given prototype, consisting of return type, parameters, 42505436638acc7c010349a69c3395f1a57c642dc62Ying Wang and attributes. 42605436638acc7c010349a69c3395f1a57c642dc62Ying Wang This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does 42705436638acc7c010349a69c3395f1a57c642dc62Ying Wang not work in this case. */ 42805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef _GL_WARN_ON_USE_CXX 42905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) 43005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 43105436638acc7c010349a69c3395f1a57c642dc62Ying Wangextern rettype function parameters_and_attributes \ 43205436638acc7c010349a69c3395f1a57c642dc62Ying Wang __attribute__ ((__warning__ (msg))) 43305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 43405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Verify the existence of the function. */ 43505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 43605436638acc7c010349a69c3395f1a57c642dc62Ying Wangextern rettype function parameters_and_attributes 43705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else /* Unsupported. */ 43805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 43905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_EXTERN_C int _gl_warn_on_use 44005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 44105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 44205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 44305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* _GL_WARN_EXTERN_C declaration; 44405436638acc7c010349a69c3395f1a57c642dc62Ying Wang performs the declaration with C linkage. */ 44505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef _GL_WARN_EXTERN_C 44605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if defined __cplusplus 44705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WARN_EXTERN_C extern "C" 44805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 44905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _GL_WARN_EXTERN_C extern 45005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 45105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 45205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 45305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 45405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Hide some function declarations from <winsock2.h>. */ 45505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 45605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 && 0 45705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !defined _GL_SYS_SOCKET_H 45805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 45905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef socket 46005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define socket socket_used_without_including_sys_socket_h 46105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef connect 46205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define connect connect_used_without_including_sys_socket_h 46305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef accept 46405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define accept accept_used_without_including_sys_socket_h 46505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef bind 46605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define bind bind_used_without_including_sys_socket_h 46705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getpeername 46805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getpeername getpeername_used_without_including_sys_socket_h 46905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getsockname 47005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getsockname getsockname_used_without_including_sys_socket_h 47105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getsockopt 47205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getsockopt getsockopt_used_without_including_sys_socket_h 47305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef listen 47405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define listen listen_used_without_including_sys_socket_h 47505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef recv 47605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define recv recv_used_without_including_sys_socket_h 47705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef send 47805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define send send_used_without_including_sys_socket_h 47905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef recvfrom 48005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define recvfrom recvfrom_used_without_including_sys_socket_h 48105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef sendto 48205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define sendto sendto_used_without_including_sys_socket_h 48305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef setsockopt 48405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define setsockopt setsockopt_used_without_including_sys_socket_h 48505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef shutdown 48605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define shutdown shutdown_used_without_including_sys_socket_h 48705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 48805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (socket, 48905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "socket() used without including <sys/socket.h>"); 49005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (connect, 49105436638acc7c010349a69c3395f1a57c642dc62Ying Wang "connect() used without including <sys/socket.h>"); 49205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (accept, 49305436638acc7c010349a69c3395f1a57c642dc62Ying Wang "accept() used without including <sys/socket.h>"); 49405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (bind, 49505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "bind() used without including <sys/socket.h>"); 49605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (getpeername, 49705436638acc7c010349a69c3395f1a57c642dc62Ying Wang "getpeername() used without including <sys/socket.h>"); 49805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (getsockname, 49905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "getsockname() used without including <sys/socket.h>"); 50005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (getsockopt, 50105436638acc7c010349a69c3395f1a57c642dc62Ying Wang "getsockopt() used without including <sys/socket.h>"); 50205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (listen, 50305436638acc7c010349a69c3395f1a57c642dc62Ying Wang "listen() used without including <sys/socket.h>"); 50405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (recv, 50505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "recv() used without including <sys/socket.h>"); 50605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (send, 50705436638acc7c010349a69c3395f1a57c642dc62Ying Wang "send() used without including <sys/socket.h>"); 50805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (recvfrom, 50905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "recvfrom() used without including <sys/socket.h>"); 51005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (sendto, 51105436638acc7c010349a69c3395f1a57c642dc62Ying Wang "sendto() used without including <sys/socket.h>"); 51205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (setsockopt, 51305436638acc7c010349a69c3395f1a57c642dc62Ying Wang "setsockopt() used without including <sys/socket.h>"); 51405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (shutdown, 51505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "shutdown() used without including <sys/socket.h>"); 51605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 51705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 51805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !defined _GL_SYS_SELECT_H 51905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 52005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef select 52105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define select select_used_without_including_sys_select_h 52205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 52305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_WARN_ON_USE (select, 52405436638acc7c010349a69c3395f1a57c642dc62Ying Wang "select() used without including <sys/select.h>"); 52505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 52605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 52705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 52805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 52905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 53005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* OS/2 EMX lacks these macros. */ 53105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef STDIN_FILENO 53205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define STDIN_FILENO 0 53305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 53405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef STDOUT_FILENO 53505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define STDOUT_FILENO 1 53605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 53705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef STDERR_FILENO 53805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define STDERR_FILENO 2 53905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 54005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 54105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Ensure *_OK macros exist. */ 54205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef F_OK 54305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define F_OK 0 54405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define X_OK 1 54505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define W_OK 2 54605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define R_OK 4 54705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 54805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 54905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 55005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Declare overridden functions. */ 55105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 55205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 55305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if defined GNULIB_POSIXCHECK 55405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The access() function is a security risk. */ 55505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (access, "the access function is a security risk - " 55605436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use the gnulib module faccessat instead"); 55705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 55805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 55905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 56005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 56105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1))); 56205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (chdir); 56305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 56405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef chdir 56505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_CHDIR 56605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - " 56705436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module chdir for portability"); 56805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 56905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 57005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 57105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 57205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 57305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE 57405436638acc7c010349a69c3395f1a57c642dc62Ying Wang to GID (if GID is not -1). Follow symbolic links. 57505436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise -1 and errno set. 57605436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 57705436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */ 57805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 57905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 58005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef chown 58105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define chown rpl_chown 58205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 58305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid) 58405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 58505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)); 58605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 58705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 58805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid) 58905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 59005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 59105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)); 59205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 59305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (chown); 59405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 59505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef chown 59605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_CHOWN 59705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and " 59805436638acc7c010349a69c3395f1a57c642dc62Ying Wang "doesn't treat a uid or gid of -1 on some systems - " 59905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module chown for portability"); 60005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 60105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 60205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 60305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 60405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 1 60505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 60605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Automatically included by modules that need a replacement for close. */ 60705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 60805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef close 60905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define close rpl_close 61005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 61105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (close, int, (int fd)); 61205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (close, int, (int fd)); 61305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 61405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (close, int, (int fd)); 61505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 61605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (close); 61705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif 0 61805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef close 61905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define close close_used_without_requesting_gnulib_module_close 62005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 62105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef close 62205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Assume close is always declared. */ 62305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (close, "close does not portably work on sockets - " 62405436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module close for portability"); 62505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 62605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 62705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 62805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 62905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 63005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 63105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define dup rpl_dup 63205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 63305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (dup, int, (int oldfd)); 63405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (dup, int, (int oldfd)); 63505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 63605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (dup, int, (int oldfd)); 63705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 63805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (dup); 63905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 64005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef dup 64105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_DUP 64205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (dup, "dup is unportable - " 64305436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module dup for portability"); 64405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 64505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 64605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 64705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 64805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 1 64905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if 65005436638acc7c010349a69c3395f1a57c642dc62Ying Wang NEWFD = OLDFD, otherwise close NEWFD first if it is open. 65105436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return newfd if successful, otherwise -1 and errno set. 65205436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 65305436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */ 65405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 65505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 65605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define dup2 rpl_dup2 65705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 65805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd)); 65905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd)); 66005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 66105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 66205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd)); 66305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 66405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd)); 66505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 66605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (dup2); 66705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 66805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef dup2 66905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_DUP2 67005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (dup2, "dup2 is unportable - " 67105436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module dup2 for portability"); 67205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 67305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 67405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 67505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 67605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 67705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Copy the file descriptor OLDFD into file descriptor NEWFD, with the 67805436638acc7c010349a69c3395f1a57c642dc62Ying Wang specified flags. 67905436638acc7c010349a69c3395f1a57c642dc62Ying Wang The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) 68005436638acc7c010349a69c3395f1a57c642dc62Ying Wang and O_TEXT, O_BINARY (defined in "binary-io.h"). 68105436638acc7c010349a69c3395f1a57c642dc62Ying Wang Close NEWFD first if it is open. 68205436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return newfd if successful, otherwise -1 and errno set. 68305436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the Linux man page at 68405436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */ 68505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 1 68605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 68705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define dup3 rpl_dup3 68805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 68905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags)); 69005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags)); 69105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 69205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags)); 69305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags)); 69405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 69505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (dup3); 69605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 69705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef dup3 69805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_DUP3 69905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (dup3, "dup3 is unportable - " 70005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module dup3 for portability"); 70105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 70205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 70305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 70405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 70505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 1 70605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !0 70705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Set of environment variables and values. An array of strings of the form 70805436638acc7c010349a69c3395f1a57c642dc62Ying Wang "VARIABLE=VALUE", terminated with a NULL. */ 70905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if defined __APPLE__ && defined __MACH__ 71005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <crt_externs.h> 71105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define environ (*_NSGetEnviron ()) 71205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 71305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifdef __cplusplus 71405436638acc7c010349a69c3395f1a57c642dc62Ying Wangextern "C" { 71505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 71605436638acc7c010349a69c3395f1a57c642dc62Ying Wangextern char **environ; 71705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifdef __cplusplus 71805436638acc7c010349a69c3395f1a57c642dc62Ying Wang} 71905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 72005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 72105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 72205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 72305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_ENVIRON 72405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_UNISTD_INLINE char *** 72505436638acc7c010349a69c3395f1a57c642dc62Ying Wangrpl_environ (void) 72605436638acc7c010349a69c3395f1a57c642dc62Ying Wang{ 72705436638acc7c010349a69c3395f1a57c642dc62Ying Wang return &environ; 72805436638acc7c010349a69c3395f1a57c642dc62Ying Wang} 72905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (rpl_environ, "environ is unportable - " 73005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module environ for portability"); 73105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef environ 73205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define environ (*rpl_environ ()) 73305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 73405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 73505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 73605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 73705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 73805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Like access(), except that it uses the effective user id and group id of 73905436638acc7c010349a69c3395f1a57c642dc62Ying Wang the current process. */ 74005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 74105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode) 74205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 74305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 74405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode)); 74505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (euidaccess); 74605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if defined GNULIB_POSIXCHECK 74705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Like access(), this function is a security risk. */ 74805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - " 74905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use the gnulib module faccessat instead"); 75005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 75105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 75205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef euidaccess 75305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_EUIDACCESS 75405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - " 75505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module euidaccess for portability"); 75605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 75705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 75805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 75905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 76005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 76105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 76205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (faccessat, int, 76305436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, char const *file, int mode, int flag) 76405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 76505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 76605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (faccessat, int, 76705436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, char const *file, int mode, int flag)); 76805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (faccessat); 76905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 77005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef faccessat 77105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_FACCESSAT 77205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (faccessat, "faccessat is not portable - " 77305436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module faccessat for portability"); 77405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 77505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 77605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 77705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 77805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 77905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Change the process' current working directory to the directory on which 78005436638acc7c010349a69c3395f1a57c642dc62Ying Wang the given file descriptor is open. 78105436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise -1 and errno set. 78205436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 78305436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */ 78405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if ! 1 78505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); 78605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 78705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Gnulib internal hooks needed to maintain the fchdir metadata. */ 78805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_EXTERN_C int _gl_register_fd (int fd, const char *filename) 78905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2)); 79005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_EXTERN_C void _gl_unregister_fd (int fd); 79105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd); 79205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_EXTERN_C const char *_gl_directory_name (int fd); 79305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 79405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 79505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 79605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); 79705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 79805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 79905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/)); 80005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (fchdir); 80105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 80205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef fchdir 80305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_FCHDIR 80405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (fchdir, "fchdir is unportable - " 80505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module fchdir for portability"); 80605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 80705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 80805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 80905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 81005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 81105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 81205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 81305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef fchownat 81405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define fchownat rpl_fchownat 81505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 81605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file, 81705436638acc7c010349a69c3395f1a57c642dc62Ying Wang uid_t owner, gid_t group, int flag) 81805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 81905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file, 82005436638acc7c010349a69c3395f1a57c642dc62Ying Wang uid_t owner, gid_t group, int flag)); 82105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 82205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 82305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file, 82405436638acc7c010349a69c3395f1a57c642dc62Ying Wang uid_t owner, gid_t group, int flag) 82505436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 82605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 82705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file, 82805436638acc7c010349a69c3395f1a57c642dc62Ying Wang uid_t owner, gid_t group, int flag)); 82905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 83005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (fchownat); 83105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 83205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef fchownat 83305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_FCHOWNAT 83405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (fchownat, "fchownat is not portable - " 83505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module openat for portability"); 83605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 83705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 83805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 83905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 84005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 84105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Synchronize changes to a file. 84205436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise -1 and errno set. 84305436638acc7c010349a69c3395f1a57c642dc62Ying Wang See POSIX:2008 specification 84405436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */ 84505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 || !1 84605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (fdatasync, int, (int fd)); 84705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 84805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (fdatasync, int, (int fd)); 84905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (fdatasync); 85005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 85105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef fdatasync 85205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_FDATASYNC 85305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - " 85405436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module fdatasync for portability"); 85505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 85605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 85705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 85805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 85905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 86005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Synchronize changes, including metadata, to a file. 86105436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise -1 and errno set. 86205436638acc7c010349a69c3395f1a57c642dc62Ying Wang See POSIX:2008 specification 86305436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>. */ 86405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 86505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (fsync, int, (int fd)); 86605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 86705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (fsync, int, (int fd)); 86805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (fsync); 86905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 87005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef fsync 87105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_FSYNC 87205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (fsync, "fsync is unportable - " 87305436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module fsync for portability"); 87405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 87505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 87605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 87705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 87805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 87905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Change the size of the file to which FD is opened to become equal to LENGTH. 88005436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise -1 and errno set. 88105436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 88205436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */ 88305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 88405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 88505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef ftruncate 88605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define ftruncate rpl_ftruncate 88705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 88805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length)); 88905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length)); 89005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 89105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 89205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length)); 89305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 89405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length)); 89505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 89605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (ftruncate); 89705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 89805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef ftruncate 89905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_FTRUNCATE 90005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - " 90105436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module ftruncate for portability"); 90205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 90305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 90405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 90505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 90605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 90705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Get the name of the current working directory, and put it in SIZE bytes 90805436638acc7c010349a69c3395f1a57c642dc62Ying Wang of BUF. 90905436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return BUF if successful, or NULL if the directory couldn't be determined 91005436638acc7c010349a69c3395f1a57c642dc62Ying Wang or SIZE was too small. 91105436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 91205436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>. 91305436638acc7c010349a69c3395f1a57c642dc62Ying Wang Additionally, the gnulib module 'getcwd' guarantees the following GNU 91405436638acc7c010349a69c3395f1a57c642dc62Ying Wang extension: If BUF is NULL, an array is allocated with 'malloc'; the array 91505436638acc7c010349a69c3395f1a57c642dc62Ying Wang is SIZE bytes long, unless SIZE == 0, in which case it is as big as 91605436638acc7c010349a69c3395f1a57c642dc62Ying Wang necessary. */ 91705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 91805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 91905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getcwd rpl_getcwd 92005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 92105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size)); 92205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size)); 92305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 92405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Need to cast, because on mingw, the second parameter is 92505436638acc7c010349a69c3395f1a57c642dc62Ying Wang int size. */ 92605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size)); 92705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 92805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (getcwd); 92905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 93005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getcwd 93105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETCWD 93205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (getcwd, "getcwd is unportable - " 93305436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getcwd for portability"); 93405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 93505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 93605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 93705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 93805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 93905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Return the NIS domain name of the machine. 94005436638acc7c010349a69c3395f1a57c642dc62Ying Wang WARNING! The NIS domain name is unrelated to the fully qualified host name 94105436638acc7c010349a69c3395f1a57c642dc62Ying Wang of the machine. It is also unrelated to email addresses. 94205436638acc7c010349a69c3395f1a57c642dc62Ying Wang WARNING! The NIS domain name is usually the empty string or "(none)" when 94305436638acc7c010349a69c3395f1a57c642dc62Ying Wang not using NIS. 94405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 94505436638acc7c010349a69c3395f1a57c642dc62Ying Wang Put up to LEN bytes of the NIS domain name into NAME. 94605436638acc7c010349a69c3395f1a57c642dc62Ying Wang Null terminate it if the name is shorter than LEN. 94705436638acc7c010349a69c3395f1a57c642dc62Ying Wang If the NIS domain name is longer than LEN, set errno = EINVAL and return -1. 94805436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise set errno and return -1. */ 94905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 95005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 95105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getdomainname 95205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getdomainname rpl_getdomainname 95305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 95405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len) 95505436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 95605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len)); 95705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 95805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 95905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len) 96005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 96105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 96205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len)); 96305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 96405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (getdomainname); 96505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 96605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getdomainname 96705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETDOMAINNAME 96805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - " 96905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getdomainname for portability"); 97005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 97105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 97205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 97305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 97405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 1 97505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Return the maximum number of file descriptors in the current process. 97605436638acc7c010349a69c3395f1a57c642dc62Ying Wang In POSIX, this is same as sysconf (_SC_OPEN_MAX). */ 97705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 97805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (getdtablesize, int, (void)); 97905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 98005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (getdtablesize, int, (void)); 98105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (getdtablesize); 98205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 98305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getdtablesize 98405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETDTABLESIZE 98505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - " 98605436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getdtablesize for portability"); 98705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 98805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 98905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 99005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 99105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 99205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Return the supplemental groups that the current process belongs to. 99305436638acc7c010349a69c3395f1a57c642dc62Ying Wang It is unspecified whether the effective group id is in the list. 99405436638acc7c010349a69c3395f1a57c642dc62Ying Wang If N is 0, return the group count; otherwise, N describes how many 99505436638acc7c010349a69c3395f1a57c642dc62Ying Wang entries are available in GROUPS. Return -1 and set errno if N is 99605436638acc7c010349a69c3395f1a57c642dc62Ying Wang not 0 and not large enough. Fails with ENOSYS on some systems. */ 99705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 99805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 99905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getgroups 100005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getgroups rpl_getgroups 100105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 100205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups)); 100305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups)); 100405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 100505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 100605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups)); 100705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 100805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups)); 100905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 101005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (getgroups); 101105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 101205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getgroups 101305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETGROUPS 101405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (getgroups, "getgroups is unportable - " 101505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getgroups for portability"); 101605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 101705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 101805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 101905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 102005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 102105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Return the standard host name of the machine. 102205436638acc7c010349a69c3395f1a57c642dc62Ying Wang WARNING! The host name may or may not be fully qualified. 102305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 102405436638acc7c010349a69c3395f1a57c642dc62Ying Wang Put up to LEN bytes of the host name into NAME. 102505436638acc7c010349a69c3395f1a57c642dc62Ying Wang Null terminate it if the name is shorter than LEN. 102605436638acc7c010349a69c3395f1a57c642dc62Ying Wang If the host name is longer than LEN, set errno = EINVAL and return -1. 102705436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise set errno and return -1. */ 102805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 102905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 103005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef gethostname 103105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define gethostname rpl_gethostname 103205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 103305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len) 103405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 103505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len)); 103605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 103705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 103805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len) 103905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 104005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 104105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second 104205436638acc7c010349a69c3395f1a57c642dc62Ying Wang parameter is 104305436638acc7c010349a69c3395f1a57c642dc62Ying Wang int len. */ 104405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len)); 104505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 104605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (gethostname); 104705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif 0 104805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef gethostname 104905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define gethostname gethostname_used_without_requesting_gnulib_module_gethostname 105005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 105105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef gethostname 105205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETHOSTNAME 105305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (gethostname, "gethostname is unportable - " 105405436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module gethostname for portability"); 105505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 105605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 105705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 105805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 105905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 106005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Returns the user's login name, or NULL if it cannot be found. Upon error, 106105436638acc7c010349a69c3395f1a57c642dc62Ying Wang returns NULL with errno set. 106205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 106305436638acc7c010349a69c3395f1a57c642dc62Ying Wang See <http://www.opengroup.org/susv3xsh/getlogin.html>. 106405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 106505436638acc7c010349a69c3395f1a57c642dc62Ying Wang Most programs don't need to use this function, because the information is 106605436638acc7c010349a69c3395f1a57c642dc62Ying Wang available through environment variables: 106705436638acc7c010349a69c3395f1a57c642dc62Ying Wang ${LOGNAME-$USER} on Unix platforms, 106805436638acc7c010349a69c3395f1a57c642dc62Ying Wang $USERNAME on native Windows platforms. 106905436638acc7c010349a69c3395f1a57c642dc62Ying Wang */ 107005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 107105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (getlogin, char *, (void)); 107205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 107305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (getlogin, char *, (void)); 107405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (getlogin); 107505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 107605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getlogin 107705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETLOGIN 107805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (getlogin, "getlogin is unportable - " 107905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getlogin for portability"); 108005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 108105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 108205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 108305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 108405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 108505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Copies the user's login name to NAME. 108605436638acc7c010349a69c3395f1a57c642dc62Ying Wang The array pointed to by NAME has room for SIZE bytes. 108705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 108805436638acc7c010349a69c3395f1a57c642dc62Ying Wang Returns 0 if successful. Upon error, an error number is returned, or -1 in 108905436638acc7c010349a69c3395f1a57c642dc62Ying Wang the case that the login name cannot be found but no specific error is 109005436638acc7c010349a69c3395f1a57c642dc62Ying Wang provided (this case is hopefully rare but is left open by the POSIX spec). 109105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 109205436638acc7c010349a69c3395f1a57c642dc62Ying Wang See <http://www.opengroup.org/susv3xsh/getlogin.html>. 109305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 109405436638acc7c010349a69c3395f1a57c642dc62Ying Wang Most programs don't need to use this function, because the information is 109505436638acc7c010349a69c3395f1a57c642dc62Ying Wang available through environment variables: 109605436638acc7c010349a69c3395f1a57c642dc62Ying Wang ${LOGNAME-$USER} on Unix platforms, 109705436638acc7c010349a69c3395f1a57c642dc62Ying Wang $USERNAME on native Windows platforms. 109805436638acc7c010349a69c3395f1a57c642dc62Ying Wang */ 109905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 110005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 110105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getlogin_r rpl_getlogin_r 110205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 110305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size) 110405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 110505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size)); 110605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 110705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 110805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size) 110905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 111005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 111105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Need to cast, because on Solaris 10 systems, the second argument is 111205436638acc7c010349a69c3395f1a57c642dc62Ying Wang int size. */ 111305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size)); 111405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 111505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (getlogin_r); 111605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 111705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getlogin_r 111805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETLOGIN_R 111905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - " 112005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getlogin_r for portability"); 112105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 112205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 112305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 112405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 112505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 112605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 112705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 112805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getpagesize rpl_getpagesize 112905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 113005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (getpagesize, int, (void)); 113105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (getpagesize, int, (void)); 113205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 113305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 113405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !defined getpagesize 113505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* This is for POSIX systems. */ 113605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !defined _gl_getpagesize && defined _SC_PAGESIZE 113705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if ! (defined __VMS && __VMS_VER < 70000000) 113805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _gl_getpagesize() sysconf (_SC_PAGESIZE) 113905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 114005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 114105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* This is for older VMS. */ 114205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !defined _gl_getpagesize && defined __VMS 114305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifdef __ALPHA 114405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _gl_getpagesize() 8192 114505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 114605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _gl_getpagesize() 512 114705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 114805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 114905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* This is for BeOS. */ 115005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !defined _gl_getpagesize && 0 115105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <OS.h> 115205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if defined B_PAGE_SIZE 115305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _gl_getpagesize() B_PAGE_SIZE 115405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 115505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 115605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* This is for AmigaOS4.0. */ 115705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !defined _gl_getpagesize && defined __amigaos4__ 115805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _gl_getpagesize() 2048 115905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 116005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* This is for older Unix systems. */ 116105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !defined _gl_getpagesize && 0 116205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <sys/param.h> 116305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifdef EXEC_PAGESIZE 116405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _gl_getpagesize() EXEC_PAGESIZE 116505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 116605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifdef NBPG 116705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef CLSIZE 116805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define CLSIZE 1 116905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 117005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _gl_getpagesize() (NBPG * CLSIZE) 117105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 117205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifdef NBPC 117305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _gl_getpagesize() NBPC 117405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 117505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 117605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 117705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 117805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 117905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define getpagesize() _gl_getpagesize () 118005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 118105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !GNULIB_defined_getpagesize_function 118205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_UNISTD_INLINE int 118305436638acc7c010349a69c3395f1a57c642dc62Ying Wanggetpagesize () 118405436638acc7c010349a69c3395f1a57c642dc62Ying Wang{ 118505436638acc7c010349a69c3395f1a57c642dc62Ying Wang return _gl_getpagesize (); 118605436638acc7c010349a69c3395f1a57c642dc62Ying Wang} 118705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define GNULIB_defined_getpagesize_function 1 118805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 118905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 119005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 119105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 119205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t. */ 119305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS_CAST (getpagesize, int, (void)); 119405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 119505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 1 119605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (getpagesize); 119705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 119805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 119905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getpagesize 120005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETPAGESIZE 120105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - " 120205436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getpagesize for portability"); 120305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 120405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 120505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 120605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 120705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 120805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Return the next valid login shell on the system, or NULL when the end of 120905436638acc7c010349a69c3395f1a57c642dc62Ying Wang the list has been reached. */ 121005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 121105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (getusershell, char *, (void)); 121205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 121305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (getusershell, char *, (void)); 121405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (getusershell); 121505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 121605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef getusershell 121705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GETUSERSHELL 121805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (getusershell, "getusershell is unportable - " 121905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getusershell for portability"); 122005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 122105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 122205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 122305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 122405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Rewind to pointer that is advanced at each getusershell() call. */ 122505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 122605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (setusershell, void, (void)); 122705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 122805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (setusershell, void, (void)); 122905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (setusershell); 123005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 123105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef setusershell 123205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_SETUSERSHELL 123305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (setusershell, "setusershell is unportable - " 123405436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getusershell for portability"); 123505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 123605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 123705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 123805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 123905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Free the pointer that is advanced at each getusershell() call and 124005436638acc7c010349a69c3395f1a57c642dc62Ying Wang associated resources. */ 124105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 124205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (endusershell, void, (void)); 124305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 124405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (endusershell, void, (void)); 124505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (endusershell); 124605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 124705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef endusershell 124805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_ENDUSERSHELL 124905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (endusershell, "endusershell is unportable - " 125005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module getusershell for portability"); 125105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 125205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 125305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 125405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 125505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 125605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Determine whether group id is in calling user's group list. */ 125705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 125805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (group_member, int, (gid_t gid)); 125905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 126005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (group_member, int, (gid_t gid)); 126105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (group_member); 126205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 126305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef group_member 126405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_GROUP_MEMBER 126505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (group_member, "group_member is unportable - " 126605436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module group-member for portability"); 126705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 126805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 126905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 127005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 127105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 127205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 127305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 127405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef isatty 127505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define isatty rpl_isatty 127605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 127705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (isatty, int, (int fd)); 127805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (isatty, int, (int fd)); 127905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 128005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (isatty, int, (int fd)); 128105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 128205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (isatty); 128305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 128405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef isatty 128505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_ISATTY 128605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - " 128705436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module isatty for portability"); 128805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 128905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 129005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 129105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 129205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 129305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE 129405436638acc7c010349a69c3395f1a57c642dc62Ying Wang to GID (if GID is not -1). Do not follow symbolic links. 129505436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise -1 and errno set. 129605436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 129705436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */ 129805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 129905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 130005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef lchown 130105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define lchown rpl_lchown 130205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 130305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group) 130405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 130505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)); 130605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 130705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 130805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group) 130905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 131005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 131105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)); 131205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 131305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (lchown); 131405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 131505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef lchown 131605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_LCHOWN 131705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - " 131805436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module lchown for portability"); 131905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 132005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 132105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 132205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 132305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 132405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Create a new hard link for an existing file. 132505436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise -1 and errno set. 132605436638acc7c010349a69c3395f1a57c642dc62Ying Wang See POSIX:2008 specification 132705436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */ 132805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 132905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 133005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define link rpl_link 133105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 133205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2) 133305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 133405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2)); 133505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 133605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 133705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2) 133805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 133905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 134005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2)); 134105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 134205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (link); 134305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 134405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef link 134505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_LINK 134605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (link, "link is unportable - " 134705436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module link for portability"); 134805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 134905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 135005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 135105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 135205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 135305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Create a new hard link for an existing file, relative to two 135405436638acc7c010349a69c3395f1a57c642dc62Ying Wang directories. FLAG controls whether symlinks are followed. 135505436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise -1 and errno set. */ 135605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 135705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 135805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef linkat 135905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define linkat rpl_linkat 136005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 136105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (linkat, int, 136205436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd1, const char *path1, int fd2, const char *path2, 136305436638acc7c010349a69c3395f1a57c642dc62Ying Wang int flag) 136405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2, 4))); 136505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (linkat, int, 136605436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd1, const char *path1, int fd2, const char *path2, 136705436638acc7c010349a69c3395f1a57c642dc62Ying Wang int flag)); 136805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 136905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 137005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (linkat, int, 137105436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd1, const char *path1, int fd2, const char *path2, 137205436638acc7c010349a69c3395f1a57c642dc62Ying Wang int flag) 137305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2, 4))); 137405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 137505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (linkat, int, 137605436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd1, const char *path1, int fd2, const char *path2, 137705436638acc7c010349a69c3395f1a57c642dc62Ying Wang int flag)); 137805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 137905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (linkat); 138005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 138105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef linkat 138205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_LINKAT 138305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (linkat, "linkat is unportable - " 138405436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module linkat for portability"); 138505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 138605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 138705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 138805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 138905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 139005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END. 139105436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return the new offset if successful, otherwise -1 and errno set. 139205436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 139305436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */ 139405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 139505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 139605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define lseek rpl_lseek 139705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 139805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence)); 139905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence)); 140005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 140105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence)); 140205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 140305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (lseek); 140405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 140505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef lseek 140605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_LSEEK 140705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some " 140805436638acc7c010349a69c3395f1a57c642dc62Ying Wang "systems - use gnulib module lseek for portability"); 140905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 141005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 141105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 141205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 141305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 141405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Create a pipe, defaulting to O_BINARY mode. 141505436638acc7c010349a69c3395f1a57c642dc62Ying Wang Store the read-end as fd[0] and the write-end as fd[1]. 141605436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 upon success, or -1 with errno set upon failure. */ 141705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 141805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1))); 141905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 142005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (pipe, int, (int fd[2])); 142105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (pipe); 142205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 142305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef pipe 142405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_PIPE 142505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (pipe, "pipe is unportable - " 142605436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module pipe-posix for portability"); 142705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 142805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 142905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 143005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 143105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 1 143205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Create a pipe, applying the given flags when opening the read-end of the 143305436638acc7c010349a69c3395f1a57c642dc62Ying Wang pipe and the write-end of the pipe. 143405436638acc7c010349a69c3395f1a57c642dc62Ying Wang The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) 143505436638acc7c010349a69c3395f1a57c642dc62Ying Wang and O_TEXT, O_BINARY (defined in "binary-io.h"). 143605436638acc7c010349a69c3395f1a57c642dc62Ying Wang Store the read-end as fd[0] and the write-end as fd[1]. 143705436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 upon success, or -1 with errno set upon failure. 143805436638acc7c010349a69c3395f1a57c642dc62Ying Wang See also the Linux man page at 143905436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */ 144005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 144105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 144205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define pipe2 rpl_pipe2 144305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 144405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); 144505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags)); 144605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 144705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); 144805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags)); 144905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 145005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (pipe2); 145105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 145205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef pipe2 145305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_PIPE2 145405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (pipe2, "pipe2 is unportable - " 145505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module pipe2 for portability"); 145605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 145705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 145805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 145905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 146005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 146105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET. 146205436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return the number of bytes placed into BUF if successful, otherwise 146305436638acc7c010349a69c3395f1a57c642dc62Ying Wang set errno and return -1. 0 indicates EOF. 146405436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 146505436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>. */ 146605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 146705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 146805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef pread 146905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define pread rpl_pread 147005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 147105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (pread, ssize_t, 147205436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, void *buf, size_t bufsize, off_t offset) 147305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 147405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (pread, ssize_t, 147505436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, void *buf, size_t bufsize, off_t offset)); 147605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 147705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 147805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (pread, ssize_t, 147905436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, void *buf, size_t bufsize, off_t offset) 148005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 148105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 148205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (pread, ssize_t, 148305436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, void *buf, size_t bufsize, off_t offset)); 148405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 148505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (pread); 148605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 148705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef pread 148805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_PREAD 148905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (pread, "pread is unportable - " 149005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module pread for portability"); 149105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 149205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 149305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 149405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 149505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 149605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET. 149705436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return the number of bytes written if successful, otherwise 149805436638acc7c010349a69c3395f1a57c642dc62Ying Wang set errno and return -1. 0 indicates nothing written. See the 149905436638acc7c010349a69c3395f1a57c642dc62Ying Wang POSIX:2008 specification 150005436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */ 150105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 150205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 150305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef pwrite 150405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define pwrite rpl_pwrite 150505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 150605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (pwrite, ssize_t, 150705436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, const void *buf, size_t bufsize, off_t offset) 150805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 150905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (pwrite, ssize_t, 151005436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, const void *buf, size_t bufsize, off_t offset)); 151105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 151205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 151305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (pwrite, ssize_t, 151405436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, const void *buf, size_t bufsize, off_t offset) 151505436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 151605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 151705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (pwrite, ssize_t, 151805436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, const void *buf, size_t bufsize, off_t offset)); 151905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 152005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (pwrite); 152105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 152205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef pwrite 152305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_PWRITE 152405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (pwrite, "pwrite is unportable - " 152505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module pwrite for portability"); 152605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 152705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 152805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 152905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 153005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 153105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Read up to COUNT bytes from file descriptor FD into the buffer starting 153205436638acc7c010349a69c3395f1a57c642dc62Ying Wang at BUF. See the POSIX:2008 specification 153305436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */ 153405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 153505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 153605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef read 153705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define read rpl_read 153805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 153905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count) 154005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 154105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count)); 154205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 154305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Need to cast, because on mingw, the third parameter is 154405436638acc7c010349a69c3395f1a57c642dc62Ying Wang unsigned int count 154505436638acc7c010349a69c3395f1a57c642dc62Ying Wang and the return type is 'int'. */ 154605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count)); 154705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 154805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (read); 154905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 155005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 155105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 155205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 155305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Read the contents of the symbolic link FILE and place the first BUFSIZE 155405436638acc7c010349a69c3395f1a57c642dc62Ying Wang bytes of it into BUF. Return the number of bytes placed into BUF if 155505436638acc7c010349a69c3395f1a57c642dc62Ying Wang successful, otherwise -1 and errno set. 155605436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 155705436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */ 155805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 155905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 156005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define readlink rpl_readlink 156105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 156205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (readlink, ssize_t, 156305436638acc7c010349a69c3395f1a57c642dc62Ying Wang (const char *file, char *buf, size_t bufsize) 156405436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 156505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (readlink, ssize_t, 156605436638acc7c010349a69c3395f1a57c642dc62Ying Wang (const char *file, char *buf, size_t bufsize)); 156705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 156805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 156905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (readlink, ssize_t, 157005436638acc7c010349a69c3395f1a57c642dc62Ying Wang (const char *file, char *buf, size_t bufsize) 157105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 157205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 157305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (readlink, ssize_t, 157405436638acc7c010349a69c3395f1a57c642dc62Ying Wang (const char *file, char *buf, size_t bufsize)); 157505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 157605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (readlink); 157705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 157805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef readlink 157905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_READLINK 158005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (readlink, "readlink is unportable - " 158105436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module readlink for portability"); 158205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 158305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 158405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 158505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 158605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 158705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 158805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (readlinkat, ssize_t, 158905436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, char const *file, char *buf, size_t len) 159005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2, 3))); 159105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 159205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (readlinkat, ssize_t, 159305436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, char const *file, char *buf, size_t len)); 159405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (readlinkat); 159505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 159605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef readlinkat 159705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_READLINKAT 159805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - " 159905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module readlinkat for portability"); 160005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 160105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 160205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 160305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 160405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 160505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Remove the directory DIR. */ 160605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 160705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 160805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define rmdir rpl_rmdir 160905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 161005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1))); 161105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (rmdir, int, (char const *name)); 161205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 161305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (rmdir, int, (char const *name)); 161405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 161505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (rmdir); 161605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 161705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef rmdir 161805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_RMDIR 161905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (rmdir, "rmdir is unportable - " 162005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module rmdir for portability"); 162105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 162205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 162305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 162405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 162505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 162605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Set the host name of the machine. 162705436638acc7c010349a69c3395f1a57c642dc62Ying Wang The host name may or may not be fully qualified. 162805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 162905436638acc7c010349a69c3395f1a57c642dc62Ying Wang Put LEN bytes of NAME into the host name. 163005436638acc7c010349a69c3395f1a57c642dc62Ying Wang Return 0 if successful, otherwise, set errno and return -1. 163105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 163205436638acc7c010349a69c3395f1a57c642dc62Ying Wang Platforms with no ability to set the hostname return -1 and set 163305436638acc7c010349a69c3395f1a57c642dc62Ying Wang errno = ENOSYS. */ 163405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 || !1 163505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len) 163605436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 163705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 163805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5 163905436638acc7c010349a69c3395f1a57c642dc62Ying Wang and FreeBSD 6.4 the second parameter is int. On Solaris 11 164005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 2011-10, the first parameter is not const. */ 164105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len)); 164205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (sethostname); 164305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 164405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef sethostname 164505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_SETHOSTNAME 164605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (sethostname, "sethostname is unportable - " 164705436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module sethostname for portability"); 164805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 164905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 165005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 165105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 165205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 165305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Pause the execution of the current thread for N seconds. 165405436638acc7c010349a69c3395f1a57c642dc62Ying Wang Returns the number of seconds left to sleep. 165505436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 165605436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */ 165705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 165805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 165905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef sleep 166005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define sleep rpl_sleep 166105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 166205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n)); 166305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n)); 166405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 166505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 166605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n)); 166705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 166805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n)); 166905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 167005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (sleep); 167105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 167205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef sleep 167305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_SLEEP 167405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (sleep, "sleep is unportable - " 167505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module sleep for portability"); 167605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 167705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 167805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 167905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 168005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 168105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 168205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 168305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef symlink 168405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define symlink rpl_symlink 168505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 168605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file) 168705436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 168805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file)); 168905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 169005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 169105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file) 169205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 169305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 169405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file)); 169505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 169605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (symlink); 169705436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 169805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef symlink 169905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_SYMLINK 170005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (symlink, "symlink is not portable - " 170105436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module symlink for portability"); 170205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 170305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 170405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 170505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 170605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 170705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 170805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (symlinkat, int, 170905436638acc7c010349a69c3395f1a57c642dc62Ying Wang (char const *contents, int fd, char const *file) 171005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 3))); 171105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 171205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (symlinkat, int, 171305436638acc7c010349a69c3395f1a57c642dc62Ying Wang (char const *contents, int fd, char const *file)); 171405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (symlinkat); 171505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 171605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef symlinkat 171705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_SYMLINKAT 171805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - " 171905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module symlinkat for portability"); 172005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 172105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 172205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 172305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 172405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 172505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Store at most BUFLEN characters of the pathname of the terminal FD is 172605436638acc7c010349a69c3395f1a57c642dc62Ying Wang open on in BUF. Return 0 on success, otherwise an error number. */ 172705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 172805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 172905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef ttyname_r 173005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define ttyname_r rpl_ttyname_r 173105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 173205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (ttyname_r, int, 173305436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2))); 173405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (ttyname_r, int, 173505436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, char *buf, size_t buflen)); 173605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 173705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 173805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (ttyname_r, int, 173905436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2))); 174005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 174105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (ttyname_r, int, 174205436638acc7c010349a69c3395f1a57c642dc62Ying Wang (int fd, char *buf, size_t buflen)); 174305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 174405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (ttyname_r); 174505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 174605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef ttyname_r 174705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_TTYNAME_R 174805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - " 174905436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module ttyname_r for portability"); 175005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 175105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 175205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 175305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 175405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 175505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 175605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 175705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef unlink 175805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define unlink rpl_unlink 175905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 176005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1))); 176105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (unlink, int, (char const *file)); 176205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 176305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (unlink, int, (char const *file)); 176405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 176505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (unlink); 176605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 176705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef unlink 176805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_UNLINK 176905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (unlink, "unlink is not portable - " 177005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module unlink for portability"); 177105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 177205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 177305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 177405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 177505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 177605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 177705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 177805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef unlinkat 177905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define unlinkat rpl_unlinkat 178005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 178105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag) 178205436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 178305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag)); 178405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 178505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 178605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag) 178705436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 178805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 178905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag)); 179005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 179105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (unlinkat); 179205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 179305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef unlinkat 179405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_UNLINKAT 179505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - " 179605436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module openat for portability"); 179705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 179805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 179905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 180005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 180105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 180205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Pause the execution of the current thread for N microseconds. 180305436638acc7c010349a69c3395f1a57c642dc62Ying Wang Returns 0 on completion, or -1 on range error. 180405436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2001 specification 180505436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://www.opengroup.org/susv3xsh/usleep.html>. */ 180605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 180705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 180805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef usleep 180905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define usleep rpl_usleep 181005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 181105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (usleep, int, (useconds_t n)); 181205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (usleep, int, (useconds_t n)); 181305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 181405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !1 181505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (usleep, int, (useconds_t n)); 181605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 181705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (usleep, int, (useconds_t n)); 181805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 181905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (usleep); 182005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 182105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef usleep 182205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_USLEEP 182305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (usleep, "usleep is unportable - " 182405436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module usleep for portability"); 182505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 182605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 182705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 182805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 182905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if 0 183005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Write up to COUNT bytes starting at BUF to file descriptor FD. 183105436638acc7c010349a69c3395f1a57c642dc62Ying Wang See the POSIX:2008 specification 183205436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */ 183305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if 0 183405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 183505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef write 183605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define write rpl_write 183705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 183805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count) 183905436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((2))); 184005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count)); 184105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 184205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Need to cast, because on mingw, the third parameter is 184305436638acc7c010349a69c3395f1a57c642dc62Ying Wang unsigned int count 184405436638acc7c010349a69c3395f1a57c642dc62Ying Wang and the return type is 'int'. */ 184505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count)); 184605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 184705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (write); 184805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 184905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 185005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_INLINE_HEADER_END 185105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 185205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif /* _GL_UNISTD_H */ 185305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif /* _GL_UNISTD_H */ 1854