/* Substitute for and wrapper around <unistd.h>.
- Copyright (C) 2003-2010 Free Software Foundation, Inc.
+ Copyright (C) 2003-2014 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program; if not, see <http://www.gnu.org/licenses/>. */
-#ifndef _GL_UNISTD_H
+#ifndef _@GUARD_PREFIX@_UNISTD_H
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
+@PRAGMA_COLUMNS@
/* The include_next requires a split double-inclusion guard. */
#if @HAVE_UNISTD_H@
# @INCLUDE_NEXT@ @NEXT_UNISTD_H@
#endif
-#ifndef _GL_UNISTD_H
-#define _GL_UNISTD_H
+/* Get all possible declarations of gethostname(). */
+#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \
+ && !defined _GL_INCLUDING_WINSOCK2_H
+# define _GL_INCLUDING_WINSOCK2_H
+# include <winsock2.h>
+# undef _GL_INCLUDING_WINSOCK2_H
+#endif
+
+#if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H
+#define _@GUARD_PREFIX@_UNISTD_H
/* NetBSD 5.0 mis-defines NULL. Also get size_t. */
#include <stddef.h>
/* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>. */
/* But avoid namespace pollution on glibc systems. */
#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \
- || (@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK)) \
+ || ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \
+ && defined __CYGWIN__)) \
&& ! defined __GLIBC__
# include <stdio.h>
#endif
/* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>. */
/* But avoid namespace pollution on glibc systems. */
-#if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__
+#if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \
+ && ! defined __GLIBC__
# include <fcntl.h>
#endif
/* mingw fails to declare _exit in <unistd.h>. */
-/* mingw, BeOS, Haiku declare environ in <stdlib.h>, not in <unistd.h>. */
+/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
+ <unistd.h>. */
/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */
+/* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is
+ included here. */
/* But avoid namespace pollution on glibc systems. */
-#ifndef __GLIBC__
+#if !defined __GLIBC__ && !defined __osf__
+# define __need_system_stdlib_h
# include <stdlib.h>
+# undef __need_system_stdlib_h
#endif
-/* mingw declares getcwd in <io.h>, not in <unistd.h>. */
-#if ((@GNULIB_GETCWD@ || defined GNULIB_POSIXCHECK) \
+/* Native Windows platforms declare chdir, getcwd, rmdir in
+ <io.h> and/or <direct.h>, not in <unistd.h>.
+ They also declare access(), chmod(), close(), dup(), dup2(), isatty(),
+ lseek(), read(), unlink(), write() in <io.h>. */
+#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \
+ || defined GNULIB_POSIXCHECK) \
&& ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
+# include <io.h> /* mingw32, mingw64 */
+# include <direct.h> /* mingw64, MSVC 9 */
+#elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \
+ || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \
+ || defined GNULIB_POSIXCHECK) \
+ && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
# include <io.h>
#endif
-#if (@GNULIB_WRITE@ || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \
- || @GNULIB_PREAD@ || defined GNULIB_POSIXCHECK)
+/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
+ NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>. */
+/* But avoid namespace pollution on glibc systems. */
+#if ((@GNULIB_GETDOMAINNAME@ && (defined _AIX || defined __osf__)) \
+ || (@GNULIB_GETHOSTNAME@ && defined __TANDEM)) \
+ && !defined __GLIBC__
+# include <netdb.h>
+#endif
+
+/* MSVC defines off_t in <sys/types.h>.
+ May also define off_t to a 64-bit type on native Windows. */
+#if !@HAVE_UNISTD_H@ || @WINDOWS_64_BIT_OFF_T@
+/* Get off_t. */
+# include <sys/types.h>
+#endif
+
+#if (@GNULIB_READ@ || @GNULIB_WRITE@ \
+ || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \
+ || @GNULIB_PREAD@ || @GNULIB_PWRITE@ || defined GNULIB_POSIXCHECK)
/* Get ssize_t. */
# include <sys/types.h>
#endif
/* Get getopt(), optarg, optind, opterr, optopt.
But avoid namespace pollution on glibc systems. */
#if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
+# define __need_getopt
# include <getopt.h>
#endif
-#if @GNULIB_GETHOSTNAME@
-/* Get all possible declarations of gethostname(). */
-# if @UNISTD_H_HAVE_WINSOCK2_H@
-# include <winsock2.h>
-# if !defined _GL_SYS_SOCKET_H
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
+_GL_INLINE_HEADER_BEGIN
+#ifndef _GL_UNISTD_INLINE
+# define _GL_UNISTD_INLINE _GL_INLINE
+#endif
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
+
+/* The definition of _GL_ARG_NONNULL is copied here. */
+
+/* The definition of _GL_WARN_ON_USE is copied here. */
+
+
+/* Hide some function declarations from <winsock2.h>. */
+
+#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@
+# if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef socket
-# define socket socket_used_without_including_sys_socket_h
+# define socket socket_used_without_including_sys_socket_h
# undef connect
-# define connect connect_used_without_including_sys_socket_h
+# define connect connect_used_without_including_sys_socket_h
# undef accept
-# define accept accept_used_without_including_sys_socket_h
+# define accept accept_used_without_including_sys_socket_h
# undef bind
-# define bind bind_used_without_including_sys_socket_h
+# define bind bind_used_without_including_sys_socket_h
# undef getpeername
-# define getpeername getpeername_used_without_including_sys_socket_h
+# define getpeername getpeername_used_without_including_sys_socket_h
# undef getsockname
-# define getsockname getsockname_used_without_including_sys_socket_h
+# define getsockname getsockname_used_without_including_sys_socket_h
# undef getsockopt
-# define getsockopt getsockopt_used_without_including_sys_socket_h
+# define getsockopt getsockopt_used_without_including_sys_socket_h
# undef listen
-# define listen listen_used_without_including_sys_socket_h
+# define listen listen_used_without_including_sys_socket_h
# undef recv
-# define recv recv_used_without_including_sys_socket_h
+# define recv recv_used_without_including_sys_socket_h
# undef send
-# define send send_used_without_including_sys_socket_h
+# define send send_used_without_including_sys_socket_h
# undef recvfrom
-# define recvfrom recvfrom_used_without_including_sys_socket_h
+# define recvfrom recvfrom_used_without_including_sys_socket_h
# undef sendto
-# define sendto sendto_used_without_including_sys_socket_h
+# define sendto sendto_used_without_including_sys_socket_h
# undef setsockopt
-# define setsockopt setsockopt_used_without_including_sys_socket_h
+# define setsockopt setsockopt_used_without_including_sys_socket_h
# undef shutdown
-# define shutdown shutdown_used_without_including_sys_socket_h
+# define shutdown shutdown_used_without_including_sys_socket_h
+# else
+ _GL_WARN_ON_USE (socket,
+ "socket() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (connect,
+ "connect() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (accept,
+ "accept() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (bind,
+ "bind() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (getpeername,
+ "getpeername() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (getsockname,
+ "getsockname() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (getsockopt,
+ "getsockopt() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (listen,
+ "listen() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (recv,
+ "recv() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (send,
+ "send() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (recvfrom,
+ "recvfrom() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (sendto,
+ "sendto() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (setsockopt,
+ "setsockopt() used without including <sys/socket.h>");
+ _GL_WARN_ON_USE (shutdown,
+ "shutdown() used without including <sys/socket.h>");
# endif
-# if !defined _GL_SYS_SELECT_H
+# endif
+# if !defined _@GUARD_PREFIX@_SYS_SELECT_H
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef select
-# define select select_used_without_including_sys_select_h
+# define select select_used_without_including_sys_select_h
+# else
+ _GL_WARN_ON_USE (select,
+ "select() used without including <sys/select.h>");
# endif
# endif
#endif
-/* The definition of _GL_ARG_NONNULL is copied here. */
-
-/* The definition of _GL_WARN_ON_USE is copied here. */
-
/* OS/2 EMX lacks these macros. */
#ifndef STDIN_FILENO
/* Declare overridden functions. */
-#ifdef __cplusplus
-extern "C" {
-#endif
-
#if defined GNULIB_POSIXCHECK
/* The access() function is a security risk. */
#endif
-#if @GNULIB_CHOWN@
-# if @REPLACE_CHOWN@
-# undef chown
-# define chown rpl_chown
+#if @GNULIB_CHDIR@
+_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIASWARN (chdir);
+#elif defined GNULIB_POSIXCHECK
+# undef chdir
+# if HAVE_RAW_DECL_CHDIR
+_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - "
+ "use gnulib module chdir for portability");
# endif
-# if !@HAVE_CHOWN@ || @REPLACE_CHOWN@
+#endif
+
+
+#if @GNULIB_CHOWN@
/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
to GID (if GID is not -1). Follow symbolic links.
Return 0 if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/chown.html>. */
-extern int chown (const char *file, uid_t uid, gid_t gid)
- _GL_ARG_NONNULL ((1));
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */
+# if @REPLACE_CHOWN@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef chown
+# define chown rpl_chown
+# endif
+_GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid));
+# else
+# if !@HAVE_CHOWN@
+_GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)
+ _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid));
# endif
+_GL_CXXALIASWARN (chown);
#elif defined GNULIB_POSIXCHECK
# undef chown
# if HAVE_RAW_DECL_CHOWN
#if @GNULIB_CLOSE@
# if @REPLACE_CLOSE@
/* Automatically included by modules that need a replacement for close. */
-# undef close
-# define close rpl_close
-extern int close (int);
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef close
+# define close rpl_close
+# endif
+_GL_FUNCDECL_RPL (close, int, (int fd));
+_GL_CXXALIAS_RPL (close, int, (int fd));
+# else
+_GL_CXXALIAS_SYS (close, int, (int fd));
# endif
+_GL_CXXALIASWARN (close);
#elif @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
# undef close
# define close close_used_without_requesting_gnulib_module_close
#endif
-#if @REPLACE_DUP@
-# define dup rpl_dup
-extern int dup (int);
+#if @GNULIB_DUP@
+# if @REPLACE_DUP@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define dup rpl_dup
+# endif
+_GL_FUNCDECL_RPL (dup, int, (int oldfd));
+_GL_CXXALIAS_RPL (dup, int, (int oldfd));
+# else
+_GL_CXXALIAS_SYS (dup, int, (int oldfd));
+# endif
+_GL_CXXALIASWARN (dup);
+#elif defined GNULIB_POSIXCHECK
+# undef dup
+# if HAVE_RAW_DECL_DUP
+_GL_WARN_ON_USE (dup, "dup is unportable - "
+ "use gnulib module dup for portability");
+# endif
#endif
#if @GNULIB_DUP2@
-# if @REPLACE_DUP2@
-# define dup2 rpl_dup2
-# endif
-# if !@HAVE_DUP2@ || @REPLACE_DUP2@
/* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if
NEWFD = OLDFD, otherwise close NEWFD first if it is open.
Return newfd if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/dup2.html>. */
-extern int dup2 (int oldfd, int newfd);
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */
+# if @REPLACE_DUP2@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define dup2 rpl_dup2
+# endif
+_GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd));
+_GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd));
+# else
+# if !@HAVE_DUP2@
+_GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd));
+# endif
+_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
# endif
+_GL_CXXALIASWARN (dup2);
#elif defined GNULIB_POSIXCHECK
# undef dup2
# if HAVE_RAW_DECL_DUP2
See the Linux man page at
<http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */
# if @HAVE_DUP3@
-# define dup3 rpl_dup3
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define dup3 rpl_dup3
+# endif
+_GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags));
+_GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags));
+# else
+_GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags));
+_GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags));
# endif
-extern int dup3 (int oldfd, int newfd, int flags);
+_GL_CXXALIASWARN (dup3);
#elif defined GNULIB_POSIXCHECK
# undef dup3
# if HAVE_RAW_DECL_DUP3
# include <crt_externs.h>
# define environ (*_NSGetEnviron ())
# else
+# ifdef __cplusplus
+extern "C" {
+# endif
extern char **environ;
+# ifdef __cplusplus
+}
+# endif
# endif
# endif
#elif defined GNULIB_POSIXCHECK
# if HAVE_RAW_DECL_ENVIRON
-static inline char ***
+_GL_UNISTD_INLINE char ***
rpl_environ (void)
{
return &environ;
#if @GNULIB_EUIDACCESS@
-# if !@HAVE_EUIDACCESS@
/* Like access(), except that it uses the effective user id and group id of
the current process. */
-extern int euidaccess (const char *filename, int mode) _GL_ARG_NONNULL ((1));
+# if !@HAVE_EUIDACCESS@
+_GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode)
+ _GL_ARG_NONNULL ((1)));
# endif
+_GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode));
+_GL_CXXALIASWARN (euidaccess);
# if defined GNULIB_POSIXCHECK
/* Like access(), this function is a security risk. */
_GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - "
#if @GNULIB_FACCESSAT@
# if !@HAVE_FACCESSAT@
-extern int faccessat (int fd, char const *file, int mode, int flag)
- _GL_ARG_NONNULL ((2));
+_GL_FUNCDECL_SYS (faccessat, int,
+ (int fd, char const *file, int mode, int flag)
+ _GL_ARG_NONNULL ((2)));
# endif
+_GL_CXXALIAS_SYS (faccessat, int,
+ (int fd, char const *file, int mode, int flag));
+_GL_CXXALIASWARN (faccessat);
#elif defined GNULIB_POSIXCHECK
# undef faccessat
# if HAVE_RAW_DECL_FACCESSAT
#if @GNULIB_FCHDIR@
-# if @REPLACE_FCHDIR@
/* Change the process' current working directory to the directory on which
the given file descriptor is open.
Return 0 if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/fchdir.html>. */
-extern int fchdir (int /*fd*/);
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */
+# if ! @HAVE_FCHDIR@
+_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
/* Gnulib internal hooks needed to maintain the fchdir metadata. */
-extern int _gl_register_fd (int fd, const char *filename)
+_GL_EXTERN_C int _gl_register_fd (int fd, const char *filename)
_GL_ARG_NONNULL ((2));
-extern void _gl_unregister_fd (int fd);
-extern int _gl_register_dup (int oldfd, int newfd);
-extern const char *_gl_directory_name (int fd);
+_GL_EXTERN_C void _gl_unregister_fd (int fd);
+_GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd);
+_GL_EXTERN_C const char *_gl_directory_name (int fd);
+# else
+# if !@HAVE_DECL_FCHDIR@
+_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
+# endif
# endif
+_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));
+_GL_CXXALIASWARN (fchdir);
#elif defined GNULIB_POSIXCHECK
# undef fchdir
# if HAVE_RAW_DECL_FCHDIR
#if @GNULIB_FCHOWNAT@
# if @REPLACE_FCHOWNAT@
-# undef fchownat
-# define fchownat rpl_fchownat
-# endif
-# if !@HAVE_FCHOWNAT@ || @REPLACE_FCHOWNAT@
-extern int fchownat (int fd, char const *file, uid_t owner, gid_t group, int flag)
- _GL_ARG_NONNULL ((2));
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef fchownat
+# define fchownat rpl_fchownat
+# endif
+_GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file,
+ uid_t owner, gid_t group, int flag)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file,
+ uid_t owner, gid_t group, int flag));
+# else
+# if !@HAVE_FCHOWNAT@
+_GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file,
+ uid_t owner, gid_t group, int flag)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file,
+ uid_t owner, gid_t group, int flag));
# endif
+_GL_CXXALIASWARN (fchownat);
#elif defined GNULIB_POSIXCHECK
# undef fchownat
# if HAVE_RAW_DECL_FCHOWNAT
#endif
-#if @GNULIB_FSYNC@
+#if @GNULIB_FDATASYNC@
/* Synchronize changes to a file.
Return 0 if successful, otherwise -1 and errno set.
- See POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/fsync.html>. */
+ See POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */
+# if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@
+_GL_FUNCDECL_SYS (fdatasync, int, (int fd));
+# endif
+_GL_CXXALIAS_SYS (fdatasync, int, (int fd));
+_GL_CXXALIASWARN (fdatasync);
+#elif defined GNULIB_POSIXCHECK
+# undef fdatasync
+# if HAVE_RAW_DECL_FDATASYNC
+_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - "
+ "use gnulib module fdatasync for portability");
+# endif
+#endif
+
+
+#if @GNULIB_FSYNC@
+/* Synchronize changes, including metadata, to a file.
+ Return 0 if successful, otherwise -1 and errno set.
+ See POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>. */
# if !@HAVE_FSYNC@
-extern int fsync (int fd);
+_GL_FUNCDECL_SYS (fsync, int, (int fd));
# endif
+_GL_CXXALIAS_SYS (fsync, int, (int fd));
+_GL_CXXALIASWARN (fsync);
#elif defined GNULIB_POSIXCHECK
# undef fsync
# if HAVE_RAW_DECL_FSYNC
#if @GNULIB_FTRUNCATE@
-# if !@HAVE_FTRUNCATE@
/* Change the size of the file to which FD is opened to become equal to LENGTH.
Return 0 if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/ftruncate.html>. */
-extern int ftruncate (int fd, off_t length);
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */
+# if @REPLACE_FTRUNCATE@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef ftruncate
+# define ftruncate rpl_ftruncate
+# endif
+_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length));
+_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length));
+# else
+# if !@HAVE_FTRUNCATE@
+_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
+# endif
+_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
# endif
+_GL_CXXALIASWARN (ftruncate);
#elif defined GNULIB_POSIXCHECK
# undef ftruncate
# if HAVE_RAW_DECL_FTRUNCATE
#if @GNULIB_GETCWD@
-# if @REPLACE_GETCWD@
/* Get the name of the current working directory, and put it in SIZE bytes
of BUF.
Return BUF if successful, or NULL if the directory couldn't be determined
or SIZE was too small.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/getcwd.html>.
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
Additionally, the gnulib module 'getcwd' guarantees the following GNU
extension: If BUF is NULL, an array is allocated with 'malloc'; the array
is SIZE bytes long, unless SIZE == 0, in which case it is as big as
necessary. */
-# define getcwd rpl_getcwd
-extern char * getcwd (char *buf, size_t size);
-# endif
+# if @REPLACE_GETCWD@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define getcwd rpl_getcwd
+# endif
+_GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size));
+_GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size));
+# else
+/* Need to cast, because on mingw, the second parameter is
+ int size. */
+_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size));
+# endif
+_GL_CXXALIASWARN (getcwd);
#elif defined GNULIB_POSIXCHECK
# undef getcwd
# if HAVE_RAW_DECL_GETCWD
Null terminate it if the name is shorter than LEN.
If the NIS domain name is longer than LEN, set errno = EINVAL and return -1.
Return 0 if successful, otherwise set errno and return -1. */
-# if !@HAVE_GETDOMAINNAME@
-extern int getdomainname(char *name, size_t len) _GL_ARG_NONNULL ((1));
+# if @REPLACE_GETDOMAINNAME@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef getdomainname
+# define getdomainname rpl_getdomainname
+# endif
+_GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len));
+# else
+# if !@HAVE_DECL_GETDOMAINNAME@
+_GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len)
+ _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len));
# endif
+_GL_CXXALIASWARN (getdomainname);
#elif defined GNULIB_POSIXCHECK
# undef getdomainname
# if HAVE_RAW_DECL_GETDOMAINNAME
#if @GNULIB_GETDTABLESIZE@
-# if !@HAVE_GETDTABLESIZE@
/* Return the maximum number of file descriptors in the current process.
In POSIX, this is same as sysconf (_SC_OPEN_MAX). */
-extern int getdtablesize (void);
+# if @REPLACE_GETDTABLESIZE@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef getdtablesize
+# define getdtablesize rpl_getdtablesize
+# endif
+_GL_FUNCDECL_RPL (getdtablesize, int, (void));
+_GL_CXXALIAS_RPL (getdtablesize, int, (void));
+# else
+# if !@HAVE_GETDTABLESIZE@
+_GL_FUNCDECL_SYS (getdtablesize, int, (void));
+# endif
+_GL_CXXALIAS_SYS (getdtablesize, int, (void));
# endif
+_GL_CXXALIASWARN (getdtablesize);
#elif defined GNULIB_POSIXCHECK
# undef getdtablesize
# if HAVE_RAW_DECL_GETDTABLESIZE
#if @GNULIB_GETGROUPS@
-# if @REPLACE_GETGROUPS@
-# undef getgroups
-# define getgroups rpl_getgroups
-# endif
-# if !@HAVE_GETGROUPS@ || @REPLACE_GETGROUPS@
/* Return the supplemental groups that the current process belongs to.
It is unspecified whether the effective group id is in the list.
If N is 0, return the group count; otherwise, N describes how many
entries are available in GROUPS. Return -1 and set errno if N is
not 0 and not large enough. Fails with ENOSYS on some systems. */
-int getgroups (int n, gid_t *groups);
+# if @REPLACE_GETGROUPS@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef getgroups
+# define getgroups rpl_getgroups
+# endif
+_GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups));
+_GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups));
+# else
+# if !@HAVE_GETGROUPS@
+_GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups));
+# endif
+_GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups));
# endif
+_GL_CXXALIASWARN (getgroups);
#elif defined GNULIB_POSIXCHECK
# undef getgroups
# if HAVE_RAW_DECL_GETGROUPS
If the host name is longer than LEN, set errno = EINVAL and return -1.
Return 0 if successful, otherwise set errno and return -1. */
# if @UNISTD_H_HAVE_WINSOCK2_H@
-# undef gethostname
-# define gethostname rpl_gethostname
-# endif
-# if @UNISTD_H_HAVE_WINSOCK2_H@ || !@HAVE_GETHOSTNAME@
-extern int gethostname(char *name, size_t len) _GL_ARG_NONNULL ((1));
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef gethostname
+# define gethostname rpl_gethostname
+# endif
+_GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len));
+# else
+# if !@HAVE_GETHOSTNAME@
+_GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len)
+ _GL_ARG_NONNULL ((1)));
+# endif
+/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second
+ parameter is
+ int len. */
+_GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len));
# endif
+_GL_CXXALIASWARN (gethostname);
#elif @UNISTD_H_HAVE_WINSOCK2_H@
# undef gethostname
# define gethostname gethostname_used_without_requesting_gnulib_module_gethostname
$USERNAME on native Windows platforms.
*/
# if !@HAVE_GETLOGIN@
-extern char *getlogin (void);
+_GL_FUNCDECL_SYS (getlogin, char *, (void));
# endif
+_GL_CXXALIAS_SYS (getlogin, char *, (void));
+_GL_CXXALIASWARN (getlogin);
#elif defined GNULIB_POSIXCHECK
# undef getlogin
# if HAVE_RAW_DECL_GETLOGIN
${LOGNAME-$USER} on Unix platforms,
$USERNAME on native Windows platforms.
*/
-# if !@HAVE_DECL_GETLOGIN_R@
-extern int getlogin_r (char *name, size_t size) _GL_ARG_NONNULL ((1));
+# if @REPLACE_GETLOGIN_R@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define getlogin_r rpl_getlogin_r
+# endif
+_GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size));
+# else
+# if !@HAVE_DECL_GETLOGIN_R@
+_GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size)
+ _GL_ARG_NONNULL ((1)));
+# endif
+/* Need to cast, because on Solaris 10 systems, the second argument is
+ int size. */
+_GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size));
# endif
+_GL_CXXALIASWARN (getlogin_r);
#elif defined GNULIB_POSIXCHECK
# undef getlogin_r
# if HAVE_RAW_DECL_GETLOGIN_R
#if @GNULIB_GETPAGESIZE@
# if @REPLACE_GETPAGESIZE@
-# define getpagesize rpl_getpagesize
-extern int getpagesize (void);
-# elif !@HAVE_GETPAGESIZE@
-/* This is for POSIX systems. */
-# if !defined getpagesize && defined _SC_PAGESIZE
-# if ! (defined __VMS && __VMS_VER < 70000000)
-# define getpagesize() sysconf (_SC_PAGESIZE)
-# endif
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define getpagesize rpl_getpagesize
# endif
+_GL_FUNCDECL_RPL (getpagesize, int, (void));
+_GL_CXXALIAS_RPL (getpagesize, int, (void));
+# else
+# if !@HAVE_GETPAGESIZE@
+# if !defined getpagesize
+/* This is for POSIX systems. */
+# if !defined _gl_getpagesize && defined _SC_PAGESIZE
+# if ! (defined __VMS && __VMS_VER < 70000000)
+# define _gl_getpagesize() sysconf (_SC_PAGESIZE)
+# endif
+# endif
/* This is for older VMS. */
-# if !defined getpagesize && defined __VMS
-# ifdef __ALPHA
-# define getpagesize() 8192
-# else
-# define getpagesize() 512
-# endif
-# endif
+# if !defined _gl_getpagesize && defined __VMS
+# ifdef __ALPHA
+# define _gl_getpagesize() 8192
+# else
+# define _gl_getpagesize() 512
+# endif
+# endif
/* This is for BeOS. */
-# if !defined getpagesize && @HAVE_OS_H@
-# include <OS.h>
-# if defined B_PAGE_SIZE
-# define getpagesize() B_PAGE_SIZE
-# endif
-# endif
+# if !defined _gl_getpagesize && @HAVE_OS_H@
+# include <OS.h>
+# if defined B_PAGE_SIZE
+# define _gl_getpagesize() B_PAGE_SIZE
+# endif
+# endif
/* This is for AmigaOS4.0. */
-# if !defined getpagesize && defined __amigaos4__
-# define getpagesize() 2048
-# endif
+# if !defined _gl_getpagesize && defined __amigaos4__
+# define _gl_getpagesize() 2048
+# endif
/* This is for older Unix systems. */
-# if !defined getpagesize && @HAVE_SYS_PARAM_H@
-# include <sys/param.h>
-# ifdef EXEC_PAGESIZE
-# define getpagesize() EXEC_PAGESIZE
-# else
-# ifdef NBPG
-# ifndef CLSIZE
-# define CLSIZE 1
+# if !defined _gl_getpagesize && @HAVE_SYS_PARAM_H@
+# include <sys/param.h>
+# ifdef EXEC_PAGESIZE
+# define _gl_getpagesize() EXEC_PAGESIZE
+# else
+# ifdef NBPG
+# ifndef CLSIZE
+# define CLSIZE 1
+# endif
+# define _gl_getpagesize() (NBPG * CLSIZE)
+# else
+# ifdef NBPC
+# define _gl_getpagesize() NBPC
+# endif
+# endif
# endif
-# define getpagesize() (NBPG * CLSIZE)
+# endif
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define getpagesize() _gl_getpagesize ()
# else
-# ifdef NBPC
-# define getpagesize() NBPC
+# if !GNULIB_defined_getpagesize_function
+_GL_UNISTD_INLINE int
+getpagesize ()
+{
+ return _gl_getpagesize ();
+}
+# define GNULIB_defined_getpagesize_function 1
# endif
# endif
# endif
# endif
+/* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t. */
+_GL_CXXALIAS_SYS_CAST (getpagesize, int, (void));
+# endif
+# if @HAVE_DECL_GETPAGESIZE@
+_GL_CXXALIASWARN (getpagesize);
# endif
#elif defined GNULIB_POSIXCHECK
# undef getpagesize
#if @GNULIB_GETUSERSHELL@
-# if !@HAVE_GETUSERSHELL@
/* Return the next valid login shell on the system, or NULL when the end of
the list has been reached. */
-extern char *getusershell (void);
-/* Rewind to pointer that is advanced at each getusershell() call. */
-extern void setusershell (void);
-/* Free the pointer that is advanced at each getusershell() call and
- associated resources. */
-extern void endusershell (void);
+# if !@HAVE_DECL_GETUSERSHELL@
+_GL_FUNCDECL_SYS (getusershell, char *, (void));
# endif
+_GL_CXXALIAS_SYS (getusershell, char *, (void));
+_GL_CXXALIASWARN (getusershell);
#elif defined GNULIB_POSIXCHECK
# undef getusershell
# if HAVE_RAW_DECL_GETUSERSHELL
_GL_WARN_ON_USE (getusershell, "getusershell is unportable - "
"use gnulib module getusershell for portability");
# endif
+#endif
+
+#if @GNULIB_GETUSERSHELL@
+/* Rewind to pointer that is advanced at each getusershell() call. */
+# if !@HAVE_DECL_GETUSERSHELL@
+_GL_FUNCDECL_SYS (setusershell, void, (void));
+# endif
+_GL_CXXALIAS_SYS (setusershell, void, (void));
+_GL_CXXALIASWARN (setusershell);
+#elif defined GNULIB_POSIXCHECK
# undef setusershell
# if HAVE_RAW_DECL_SETUSERSHELL
_GL_WARN_ON_USE (setusershell, "setusershell is unportable - "
"use gnulib module getusershell for portability");
# endif
+#endif
+
+#if @GNULIB_GETUSERSHELL@
+/* Free the pointer that is advanced at each getusershell() call and
+ associated resources. */
+# if !@HAVE_DECL_GETUSERSHELL@
+_GL_FUNCDECL_SYS (endusershell, void, (void));
+# endif
+_GL_CXXALIAS_SYS (endusershell, void, (void));
+_GL_CXXALIASWARN (endusershell);
+#elif defined GNULIB_POSIXCHECK
# undef endusershell
# if HAVE_RAW_DECL_ENDUSERSHELL
_GL_WARN_ON_USE (endusershell, "endusershell is unportable - "
#endif
-#if @GNULIB_LCHOWN@
-# if @REPLACE_LCHOWN@
-# undef lchown
-# define lchown rpl_lchown
+#if @GNULIB_GROUP_MEMBER@
+/* Determine whether group id is in calling user's group list. */
+# if !@HAVE_GROUP_MEMBER@
+_GL_FUNCDECL_SYS (group_member, int, (gid_t gid));
+# endif
+_GL_CXXALIAS_SYS (group_member, int, (gid_t gid));
+_GL_CXXALIASWARN (group_member);
+#elif defined GNULIB_POSIXCHECK
+# undef group_member
+# if HAVE_RAW_DECL_GROUP_MEMBER
+_GL_WARN_ON_USE (group_member, "group_member is unportable - "
+ "use gnulib module group-member for portability");
# endif
-# if !@HAVE_LCHOWN@ || @REPLACE_LCHOWN@
+#endif
+
+
+#if @GNULIB_ISATTY@
+# if @REPLACE_ISATTY@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef isatty
+# define isatty rpl_isatty
+# endif
+_GL_FUNCDECL_RPL (isatty, int, (int fd));
+_GL_CXXALIAS_RPL (isatty, int, (int fd));
+# else
+_GL_CXXALIAS_SYS (isatty, int, (int fd));
+# endif
+_GL_CXXALIASWARN (isatty);
+#elif defined GNULIB_POSIXCHECK
+# undef isatty
+# if HAVE_RAW_DECL_ISATTY
+_GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - "
+ "use gnulib module isatty for portability");
+# endif
+#endif
+
+
+#if @GNULIB_LCHOWN@
/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
to GID (if GID is not -1). Do not follow symbolic links.
Return 0 if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/lchown.html>. */
-extern int lchown (char const *file, uid_t owner, gid_t group)
- _GL_ARG_NONNULL ((1));
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */
+# if @REPLACE_LCHOWN@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef lchown
+# define lchown rpl_lchown
+# endif
+_GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group));
+# else
+# if !@HAVE_LCHOWN@
+_GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)
+ _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group));
# endif
+_GL_CXXALIASWARN (lchown);
#elif defined GNULIB_POSIXCHECK
# undef lchown
# if HAVE_RAW_DECL_LCHOWN
#if @GNULIB_LINK@
-# if @REPLACE_LINK@
-# define link rpl_link
-# endif
/* Create a new hard link for an existing file.
Return 0 if successful, otherwise -1 and errno set.
- See POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/link.html>. */
-# if !@HAVE_LINK@ || @REPLACE_LINK@
-extern int link (const char *path1, const char *path2)
- _GL_ARG_NONNULL ((1, 2));
+ See POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */
+# if @REPLACE_LINK@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define link rpl_link
+# endif
+_GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2)
+ _GL_ARG_NONNULL ((1, 2)));
+_GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2));
+# else
+# if !@HAVE_LINK@
+_GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2)
+ _GL_ARG_NONNULL ((1, 2)));
+# endif
+_GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2));
# endif
+_GL_CXXALIASWARN (link);
#elif defined GNULIB_POSIXCHECK
# undef link
# if HAVE_RAW_DECL_LINK
# endif
#endif
+
#if @GNULIB_LINKAT@
-# if @REPLACE_LINKAT@
-# undef linkat
-# define linkat rpl_linkat
-# endif
/* Create a new hard link for an existing file, relative to two
directories. FLAG controls whether symlinks are followed.
Return 0 if successful, otherwise -1 and errno set. */
-# if !@HAVE_LINKAT@ || @REPLACE_LINKAT@
-extern int linkat (int fd1, const char *path1, int fd2, const char *path2,
+# if @REPLACE_LINKAT@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef linkat
+# define linkat rpl_linkat
+# endif
+_GL_FUNCDECL_RPL (linkat, int,
+ (int fd1, const char *path1, int fd2, const char *path2,
+ int flag)
+ _GL_ARG_NONNULL ((2, 4)));
+_GL_CXXALIAS_RPL (linkat, int,
+ (int fd1, const char *path1, int fd2, const char *path2,
+ int flag));
+# else
+# if !@HAVE_LINKAT@
+_GL_FUNCDECL_SYS (linkat, int,
+ (int fd1, const char *path1, int fd2, const char *path2,
int flag)
- _GL_ARG_NONNULL ((2, 4));
+ _GL_ARG_NONNULL ((2, 4)));
+# endif
+_GL_CXXALIAS_SYS (linkat, int,
+ (int fd1, const char *path1, int fd2, const char *path2,
+ int flag));
# endif
+_GL_CXXALIASWARN (linkat);
#elif defined GNULIB_POSIXCHECK
# undef linkat
# if HAVE_RAW_DECL_LINKAT
# endif
#endif
+
#if @GNULIB_LSEEK@
-# if @REPLACE_LSEEK@
/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
Return the new offset if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/lseek.html>. */
-# define lseek rpl_lseek
- extern off_t lseek (int fd, off_t offset, int whence);
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */
+# if @REPLACE_LSEEK@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define lseek rpl_lseek
+# endif
+_GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence));
+_GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence));
+# else
+_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence));
# endif
+_GL_CXXALIASWARN (lseek);
#elif defined GNULIB_POSIXCHECK
# undef lseek
# if HAVE_RAW_DECL_LSEEK
#endif
+#if @GNULIB_PIPE@
+/* Create a pipe, defaulting to O_BINARY mode.
+ Store the read-end as fd[0] and the write-end as fd[1].
+ Return 0 upon success, or -1 with errno set upon failure. */
+# if !@HAVE_PIPE@
+_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (pipe, int, (int fd[2]));
+_GL_CXXALIASWARN (pipe);
+#elif defined GNULIB_POSIXCHECK
+# undef pipe
+# if HAVE_RAW_DECL_PIPE
+_GL_WARN_ON_USE (pipe, "pipe is unportable - "
+ "use gnulib module pipe-posix for portability");
+# endif
+#endif
+
+
#if @GNULIB_PIPE2@
/* Create a pipe, applying the given flags when opening the read-end of the
pipe and the write-end of the pipe.
See also the Linux man page at
<http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */
# if @HAVE_PIPE2@
-# define pipe2 rpl_pipe2
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define pipe2 rpl_pipe2
+# endif
+_GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags));
+# else
+_GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags));
# endif
-extern int pipe2 (int fd[2], int flags) _GL_ARG_NONNULL ((1));
+_GL_CXXALIASWARN (pipe2);
#elif defined GNULIB_POSIXCHECK
# undef pipe2
# if HAVE_RAW_DECL_PIPE2
#if @GNULIB_PREAD@
-# if @REPLACE_PREAD@
-# define pread rpl_pread
-# endif
/* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET.
Return the number of bytes placed into BUF if successful, otherwise
- set errno and return -1. 0 indicates EOF. See the POSIX:2001
- specification <http://www.opengroup.org/susv3xsh/pread.html>. */
-# if !@HAVE_PREAD@ || @REPLACE_PREAD@
- extern ssize_t pread (int fd, void *buf, size_t bufsize, off_t offset)
- _GL_ARG_NONNULL ((2));
+ set errno and return -1. 0 indicates EOF.
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>. */
+# if @REPLACE_PREAD@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef pread
+# define pread rpl_pread
+# endif
+_GL_FUNCDECL_RPL (pread, ssize_t,
+ (int fd, void *buf, size_t bufsize, off_t offset)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (pread, ssize_t,
+ (int fd, void *buf, size_t bufsize, off_t offset));
+# else
+# if !@HAVE_PREAD@
+_GL_FUNCDECL_SYS (pread, ssize_t,
+ (int fd, void *buf, size_t bufsize, off_t offset)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (pread, ssize_t,
+ (int fd, void *buf, size_t bufsize, off_t offset));
# endif
+_GL_CXXALIASWARN (pread);
#elif defined GNULIB_POSIXCHECK
# undef pread
# if HAVE_RAW_DECL_PREAD
#endif
-#if @GNULIB_READLINK@
-# if @REPLACE_READLINK@
-# define readlink rpl_readlink
+#if @GNULIB_PWRITE@
+/* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET.
+ Return the number of bytes written if successful, otherwise
+ set errno and return -1. 0 indicates nothing written. See the
+ POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */
+# if @REPLACE_PWRITE@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef pwrite
+# define pwrite rpl_pwrite
+# endif
+_GL_FUNCDECL_RPL (pwrite, ssize_t,
+ (int fd, const void *buf, size_t bufsize, off_t offset)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (pwrite, ssize_t,
+ (int fd, const void *buf, size_t bufsize, off_t offset));
+# else
+# if !@HAVE_PWRITE@
+_GL_FUNCDECL_SYS (pwrite, ssize_t,
+ (int fd, const void *buf, size_t bufsize, off_t offset)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (pwrite, ssize_t,
+ (int fd, const void *buf, size_t bufsize, off_t offset));
+# endif
+_GL_CXXALIASWARN (pwrite);
+#elif defined GNULIB_POSIXCHECK
+# undef pwrite
+# if HAVE_RAW_DECL_PWRITE
+_GL_WARN_ON_USE (pwrite, "pwrite is unportable - "
+ "use gnulib module pwrite for portability");
# endif
+#endif
+
+
+#if @GNULIB_READ@
+/* Read up to COUNT bytes from file descriptor FD into the buffer starting
+ at BUF. See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */
+# if @REPLACE_READ@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef read
+# define read rpl_read
+# endif
+_GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count));
+# else
+/* Need to cast, because on mingw, the third parameter is
+ unsigned int count
+ and the return type is 'int'. */
+_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count));
+# endif
+_GL_CXXALIASWARN (read);
+#endif
+
+
+#if @GNULIB_READLINK@
/* Read the contents of the symbolic link FILE and place the first BUFSIZE
bytes of it into BUF. Return the number of bytes placed into BUF if
successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/readlink.html>. */
-# if !@HAVE_READLINK@ || @REPLACE_READLINK@
-extern ssize_t readlink (const char *file, char *buf, size_t bufsize)
- _GL_ARG_NONNULL ((1, 2));
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */
+# if @REPLACE_READLINK@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define readlink rpl_readlink
+# endif
+_GL_FUNCDECL_RPL (readlink, ssize_t,
+ (const char *file, char *buf, size_t bufsize)
+ _GL_ARG_NONNULL ((1, 2)));
+_GL_CXXALIAS_RPL (readlink, ssize_t,
+ (const char *file, char *buf, size_t bufsize));
+# else
+# if !@HAVE_READLINK@
+_GL_FUNCDECL_SYS (readlink, ssize_t,
+ (const char *file, char *buf, size_t bufsize)
+ _GL_ARG_NONNULL ((1, 2)));
+# endif
+_GL_CXXALIAS_SYS (readlink, ssize_t,
+ (const char *file, char *buf, size_t bufsize));
# endif
+_GL_CXXALIASWARN (readlink);
#elif defined GNULIB_POSIXCHECK
# undef readlink
# if HAVE_RAW_DECL_READLINK
#if @GNULIB_READLINKAT@
# if !@HAVE_READLINKAT@
-extern ssize_t readlinkat (int fd, char const *file, char *buf, size_t len)
- _GL_ARG_NONNULL ((2, 3));
+_GL_FUNCDECL_SYS (readlinkat, ssize_t,
+ (int fd, char const *file, char *buf, size_t len)
+ _GL_ARG_NONNULL ((2, 3)));
# endif
+_GL_CXXALIAS_SYS (readlinkat, ssize_t,
+ (int fd, char const *file, char *buf, size_t len));
+_GL_CXXALIASWARN (readlinkat);
#elif defined GNULIB_POSIXCHECK
# undef readlinkat
# if HAVE_RAW_DECL_READLINKAT
_GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - "
- "use gnulib module symlinkat for portability");
+ "use gnulib module readlinkat for portability");
# endif
#endif
#if @GNULIB_RMDIR@
-# if @REPLACE_RMDIR@
-# define rmdir rpl_rmdir
/* Remove the directory DIR. */
-extern int rmdir (char const *name) _GL_ARG_NONNULL ((1));
+# if @REPLACE_RMDIR@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define rmdir rpl_rmdir
+# endif
+_GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (rmdir, int, (char const *name));
+# else
+_GL_CXXALIAS_SYS (rmdir, int, (char const *name));
# endif
+_GL_CXXALIASWARN (rmdir);
#elif defined GNULIB_POSIXCHECK
# undef rmdir
# if HAVE_RAW_DECL_RMDIR
#endif
-#if @GNULIB_SLEEP@
-# if @REPLACE_SLEEP@
-# undef sleep
-# define sleep rpl_sleep
+#if @GNULIB_SETHOSTNAME@
+/* Set the host name of the machine.
+ The host name may or may not be fully qualified.
+
+ Put LEN bytes of NAME into the host name.
+ Return 0 if successful, otherwise, set errno and return -1.
+
+ Platforms with no ability to set the hostname return -1 and set
+ errno = ENOSYS. */
+# if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@
+_GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len)
+ _GL_ARG_NONNULL ((1)));
# endif
+/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5
+ and FreeBSD 6.4 the second parameter is int. On Solaris 11
+ 2011-10, the first parameter is not const. */
+_GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len));
+_GL_CXXALIASWARN (sethostname);
+#elif defined GNULIB_POSIXCHECK
+# undef sethostname
+# if HAVE_RAW_DECL_SETHOSTNAME
+_GL_WARN_ON_USE (sethostname, "sethostname is unportable - "
+ "use gnulib module sethostname for portability");
+# endif
+#endif
+
+
+#if @GNULIB_SLEEP@
/* Pause the execution of the current thread for N seconds.
Returns the number of seconds left to sleep.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/sleep.html>. */
-# if !@HAVE_SLEEP@ || @REPLACE_SLEEP@
-extern unsigned int sleep (unsigned int n);
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */
+# if @REPLACE_SLEEP@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef sleep
+# define sleep rpl_sleep
+# endif
+_GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n));
+_GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n));
+# else
+# if !@HAVE_SLEEP@
+_GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n));
+# endif
+_GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n));
# endif
+_GL_CXXALIASWARN (sleep);
#elif defined GNULIB_POSIXCHECK
# undef sleep
# if HAVE_RAW_DECL_SLEEP
#if @GNULIB_SYMLINK@
# if @REPLACE_SYMLINK@
-# undef symlink
-# define symlink rpl_symlink
-# endif
-# if !@HAVE_SYMLINK@ || @REPLACE_SYMLINK@
-extern int symlink (char const *contents, char const *file)
- _GL_ARG_NONNULL ((1, 2));
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef symlink
+# define symlink rpl_symlink
+# endif
+_GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file)
+ _GL_ARG_NONNULL ((1, 2)));
+_GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file));
+# else
+# if !@HAVE_SYMLINK@
+_GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file)
+ _GL_ARG_NONNULL ((1, 2)));
+# endif
+_GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file));
# endif
+_GL_CXXALIASWARN (symlink);
#elif defined GNULIB_POSIXCHECK
# undef symlink
# if HAVE_RAW_DECL_SYMLINK
#if @GNULIB_SYMLINKAT@
# if !@HAVE_SYMLINKAT@
-extern int symlinkat (char const *contents, int fd, char const *file)
- _GL_ARG_NONNULL ((1, 3));
+_GL_FUNCDECL_SYS (symlinkat, int,
+ (char const *contents, int fd, char const *file)
+ _GL_ARG_NONNULL ((1, 3)));
# endif
+_GL_CXXALIAS_SYS (symlinkat, int,
+ (char const *contents, int fd, char const *file));
+_GL_CXXALIASWARN (symlinkat);
#elif defined GNULIB_POSIXCHECK
# undef symlinkat
# if HAVE_RAW_DECL_SYMLINKAT
#endif
+#if @GNULIB_TTYNAME_R@
+/* Store at most BUFLEN characters of the pathname of the terminal FD is
+ open on in BUF. Return 0 on success, otherwise an error number. */
+# if @REPLACE_TTYNAME_R@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef ttyname_r
+# define ttyname_r rpl_ttyname_r
+# endif
+_GL_FUNCDECL_RPL (ttyname_r, int,
+ (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (ttyname_r, int,
+ (int fd, char *buf, size_t buflen));
+# else
+# if !@HAVE_DECL_TTYNAME_R@
+_GL_FUNCDECL_SYS (ttyname_r, int,
+ (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (ttyname_r, int,
+ (int fd, char *buf, size_t buflen));
+# endif
+_GL_CXXALIASWARN (ttyname_r);
+#elif defined GNULIB_POSIXCHECK
+# undef ttyname_r
+# if HAVE_RAW_DECL_TTYNAME_R
+_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - "
+ "use gnulib module ttyname_r for portability");
+# endif
+#endif
+
+
#if @GNULIB_UNLINK@
# if @REPLACE_UNLINK@
-# undef unlink
-# define unlink rpl_unlink
-extern int unlink (char const *file) _GL_ARG_NONNULL ((1));
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef unlink
+# define unlink rpl_unlink
+# endif
+_GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (unlink, int, (char const *file));
+# else
+_GL_CXXALIAS_SYS (unlink, int, (char const *file));
# endif
+_GL_CXXALIASWARN (unlink);
#elif defined GNULIB_POSIXCHECK
# undef unlink
# if HAVE_RAW_DECL_UNLINK
#if @GNULIB_UNLINKAT@
# if @REPLACE_UNLINKAT@
-# undef unlinkat
-# define unlinkat rpl_unlinkat
-# endif
-# if !@HAVE_UNLINKAT@ || @REPLACE_UNLINKAT@
-extern int unlinkat (int fd, char const *file, int flag) _GL_ARG_NONNULL ((2));
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef unlinkat
+# define unlinkat rpl_unlinkat
+# endif
+_GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag));
+# else
+# if !@HAVE_UNLINKAT@
+_GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag));
# endif
+_GL_CXXALIASWARN (unlinkat);
#elif defined GNULIB_POSIXCHECK
# undef unlinkat
# if HAVE_RAW_DECL_UNLINKAT
#if @GNULIB_USLEEP@
-# if @REPLACE_USLEEP@
-# undef usleep
-# define usleep rpl_usleep
-# endif
-# if !@HAVE_USLEEP@ || @REPLACE_USLEEP@
/* Pause the execution of the current thread for N microseconds.
Returns 0 on completion, or -1 on range error.
See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/sleep.html>. */
-extern int usleep (useconds_t n);
+ <http://www.opengroup.org/susv3xsh/usleep.html>. */
+# if @REPLACE_USLEEP@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef usleep
+# define usleep rpl_usleep
+# endif
+_GL_FUNCDECL_RPL (usleep, int, (useconds_t n));
+_GL_CXXALIAS_RPL (usleep, int, (useconds_t n));
+# else
+# if !@HAVE_USLEEP@
+_GL_FUNCDECL_SYS (usleep, int, (useconds_t n));
+# endif
+_GL_CXXALIAS_SYS (usleep, int, (useconds_t n));
# endif
+_GL_CXXALIASWARN (usleep);
#elif defined GNULIB_POSIXCHECK
# undef usleep
# if HAVE_RAW_DECL_USLEEP
#endif
-#if @GNULIB_WRITE@ && @REPLACE_WRITE@ && @GNULIB_UNISTD_H_SIGPIPE@
+#if @GNULIB_WRITE@
/* Write up to COUNT bytes starting at BUF to file descriptor FD.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/write.html>. */
-# undef write
-# define write rpl_write
-extern ssize_t write (int fd, const void *buf, size_t count)
- _GL_ARG_NONNULL ((2));
-#endif
-
-
-#ifdef __cplusplus
-}
+ See the POSIX:2008 specification
+ <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */
+# if @REPLACE_WRITE@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef write
+# define write rpl_write
+# endif
+_GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count));
+# else
+/* Need to cast, because on mingw, the third parameter is
+ unsigned int count
+ and the return type is 'int'. */
+_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count));
+# endif
+_GL_CXXALIASWARN (write);
#endif
+_GL_INLINE_HEADER_END
-#endif /* _GL_UNISTD_H */
-#endif /* _GL_UNISTD_H */
+#endif /* _@GUARD_PREFIX@_UNISTD_H */
+#endif /* _@GUARD_PREFIX@_UNISTD_H */
projects / gnulib.git / blobdiff