| 1 | /* Substitute for and wrapper around <unistd.h>.
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| 2 | Copyright (C) 2003-2012 Free Software Foundation, Inc.
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| 3 |
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| 4 | This program is free software; you can redistribute it and/or modify
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| 5 | it under the terms of the GNU General Public License as published by
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| 6 | the Free Software Foundation; either version 3, or (at your option)
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| 7 | any later version.
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| 8 |
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| 9 | This program is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU General Public License
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| 15 | along with this program; if not, see <http://www.gnu.org/licenses/>. */
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| 16 |
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| 17 | #if __GNUC__ >= 3
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| 18 | @PRAGMA_SYSTEM_HEADER@
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| 19 | #endif
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| 20 | @PRAGMA_COLUMNS@
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| 21 |
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| 22 | /* Special invocation convention:
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| 23 | - On mingw, several headers, including <winsock2.h>, include <unistd.h>,
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| 24 | but we need to ensure that both the system <unistd.h> and <winsock2.h>
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| 25 | are completely included before we replace gethostname. */
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| 26 | #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \
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| 27 | && !defined _GL_WINSOCK2_H_WITNESS && defined _WINSOCK2_H
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| 28 | /* <unistd.h> is being indirectly included for the first time from
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| 29 | <winsock2.h>; avoid declaring any overrides. */
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| 30 | # if @HAVE_UNISTD_H@
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| 31 | # @INCLUDE_NEXT@ @NEXT_UNISTD_H@
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| 32 | # else
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| 33 | # error unexpected; report this to bug-gnulib@gnu.org
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| 34 | # endif
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| 35 | # define _GL_WINSOCK2_H_WITNESS
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| 36 |
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| 37 | /* Normal invocation. */
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| 38 | #elif !defined _@GUARD_PREFIX@_UNISTD_H
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| 39 |
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| 40 | /* The include_next requires a split double-inclusion guard. */
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| 41 | #if @HAVE_UNISTD_H@
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| 42 | # @INCLUDE_NEXT@ @NEXT_UNISTD_H@
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| 43 | #endif
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| 44 |
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| 45 | /* Get all possible declarations of gethostname(). */
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| 46 | #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \
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| 47 | && !defined _GL_INCLUDING_WINSOCK2_H
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| 48 | # define _GL_INCLUDING_WINSOCK2_H
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| 49 | # include <winsock2.h>
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| 50 | # undef _GL_INCLUDING_WINSOCK2_H
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| 51 | #endif
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| 52 |
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| 53 | #if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H
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| 54 | #define _@GUARD_PREFIX@_UNISTD_H
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| 55 |
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| 56 | /* NetBSD 5.0 mis-defines NULL. Also get size_t. */
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| 57 | #include <stddef.h>
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| 58 |
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| 59 | /* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>. */
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| 60 | /* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>. */
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| 61 | /* But avoid namespace pollution on glibc systems. */
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| 62 | #if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \
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| 63 | || ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \
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| 64 | && defined __CYGWIN__)) \
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| 65 | && ! defined __GLIBC__
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| 66 | # include <stdio.h>
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| 67 | #endif
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| 68 |
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| 69 | /* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>. */
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| 70 | /* But avoid namespace pollution on glibc systems. */
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| 71 | #if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \
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| 72 | && ! defined __GLIBC__
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| 73 | # include <fcntl.h>
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| 74 | #endif
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| 75 |
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| 76 | /* mingw fails to declare _exit in <unistd.h>. */
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| 77 | /* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
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| 78 | <unistd.h>. */
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| 79 | /* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */
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| 80 | /* But avoid namespace pollution on glibc systems. */
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| 81 | #ifndef __GLIBC__
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| 82 | # include <stdlib.h>
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| 83 | #endif
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| 84 |
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| 85 | /* Native Windows platforms declare chdir, getcwd, rmdir in
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| 86 | <io.h> and/or <direct.h>, not in <unistd.h>.
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| 87 | They also declare access(), chmod(), close(), dup(), dup2(), isatty(),
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| 88 | lseek(), read(), unlink(), write() in <io.h>. */
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| 89 | #if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \
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| 90 | || defined GNULIB_POSIXCHECK) \
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| 91 | && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
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| 92 | # include <io.h> /* mingw32, mingw64 */
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| 93 | # include <direct.h> /* mingw64, MSVC 9 */
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| 94 | #elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \
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| 95 | || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \
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| 96 | || defined GNULIB_POSIXCHECK) \
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| 97 | && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
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| 98 | # include <io.h>
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| 99 | #endif
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| 100 |
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| 101 | /* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
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| 102 | NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>. */
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| 103 | /* But avoid namespace pollution on glibc systems. */
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| 104 | #if ((@GNULIB_GETDOMAINNAME@ && (defined _AIX || defined __osf__)) \
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| 105 | || (@GNULIB_GETHOSTNAME@ && defined __TANDEM)) \
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| 106 | && !defined __GLIBC__
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| 107 | # include <netdb.h>
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| 108 | #endif
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| 109 |
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| 110 | /* MSVC defines off_t in <sys/types.h>.
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| 111 | May also define off_t to a 64-bit type on native Windows. */
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| 112 | #if !@HAVE_UNISTD_H@ || @WINDOWS_64_BIT_OFF_T@
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| 113 | /* Get off_t. */
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| 114 | # include <sys/types.h>
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| 115 | #endif
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| 116 |
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| 117 | #if (@GNULIB_READ@ || @GNULIB_WRITE@ \
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| 118 | || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \
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| 119 | || @GNULIB_PREAD@ || @GNULIB_PWRITE@ || defined GNULIB_POSIXCHECK)
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| 120 | /* Get ssize_t. */
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| 121 | # include <sys/types.h>
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| 122 | #endif
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| 123 |
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| 124 | /* Get getopt(), optarg, optind, opterr, optopt.
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| 125 | But avoid namespace pollution on glibc systems. */
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| 126 | #if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
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| 127 | # include <getopt.h>
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| 128 | #endif
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| 129 |
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| 130 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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| 131 |
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| 132 | /* The definition of _GL_ARG_NONNULL is copied here. */
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| 133 |
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| 134 | /* The definition of _GL_WARN_ON_USE is copied here. */
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| 135 |
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| 136 |
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| 137 | /* Hide some function declarations from <winsock2.h>. */
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| 138 |
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| 139 | #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@
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| 140 | # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
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| 141 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 142 | # undef socket
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| 143 | # define socket socket_used_without_including_sys_socket_h
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| 144 | # undef connect
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| 145 | # define connect connect_used_without_including_sys_socket_h
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| 146 | # undef accept
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| 147 | # define accept accept_used_without_including_sys_socket_h
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| 148 | # undef bind
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| 149 | # define bind bind_used_without_including_sys_socket_h
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| 150 | # undef getpeername
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| 151 | # define getpeername getpeername_used_without_including_sys_socket_h
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| 152 | # undef getsockname
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| 153 | # define getsockname getsockname_used_without_including_sys_socket_h
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| 154 | # undef getsockopt
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| 155 | # define getsockopt getsockopt_used_without_including_sys_socket_h
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| 156 | # undef listen
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| 157 | # define listen listen_used_without_including_sys_socket_h
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| 158 | # undef recv
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| 159 | # define recv recv_used_without_including_sys_socket_h
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| 160 | # undef send
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| 161 | # define send send_used_without_including_sys_socket_h
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| 162 | # undef recvfrom
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| 163 | # define recvfrom recvfrom_used_without_including_sys_socket_h
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| 164 | # undef sendto
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| 165 | # define sendto sendto_used_without_including_sys_socket_h
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| 166 | # undef setsockopt
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| 167 | # define setsockopt setsockopt_used_without_including_sys_socket_h
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| 168 | # undef shutdown
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| 169 | # define shutdown shutdown_used_without_including_sys_socket_h
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| 170 | # else
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| 171 | _GL_WARN_ON_USE (socket,
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| 172 | "socket() used without including <sys/socket.h>");
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| 173 | _GL_WARN_ON_USE (connect,
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| 174 | "connect() used without including <sys/socket.h>");
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| 175 | _GL_WARN_ON_USE (accept,
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| 176 | "accept() used without including <sys/socket.h>");
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| 177 | _GL_WARN_ON_USE (bind,
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| 178 | "bind() used without including <sys/socket.h>");
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| 179 | _GL_WARN_ON_USE (getpeername,
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| 180 | "getpeername() used without including <sys/socket.h>");
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| 181 | _GL_WARN_ON_USE (getsockname,
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| 182 | "getsockname() used without including <sys/socket.h>");
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| 183 | _GL_WARN_ON_USE (getsockopt,
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| 184 | "getsockopt() used without including <sys/socket.h>");
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| 185 | _GL_WARN_ON_USE (listen,
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| 186 | "listen() used without including <sys/socket.h>");
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| 187 | _GL_WARN_ON_USE (recv,
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| 188 | "recv() used without including <sys/socket.h>");
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| 189 | _GL_WARN_ON_USE (send,
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| 190 | "send() used without including <sys/socket.h>");
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| 191 | _GL_WARN_ON_USE (recvfrom,
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| 192 | "recvfrom() used without including <sys/socket.h>");
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| 193 | _GL_WARN_ON_USE (sendto,
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| 194 | "sendto() used without including <sys/socket.h>");
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| 195 | _GL_WARN_ON_USE (setsockopt,
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| 196 | "setsockopt() used without including <sys/socket.h>");
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| 197 | _GL_WARN_ON_USE (shutdown,
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| 198 | "shutdown() used without including <sys/socket.h>");
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| 199 | # endif
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| 200 | # endif
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| 201 | # if !defined _@GUARD_PREFIX@_SYS_SELECT_H
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| 202 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 203 | # undef select
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| 204 | # define select select_used_without_including_sys_select_h
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| 205 | # else
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| 206 | _GL_WARN_ON_USE (select,
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| 207 | "select() used without including <sys/select.h>");
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| 208 | # endif
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| 209 | # endif
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| 210 | #endif
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| 211 |
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| 212 |
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| 213 | /* OS/2 EMX lacks these macros. */
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| 214 | #ifndef STDIN_FILENO
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| 215 | # define STDIN_FILENO 0
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| 216 | #endif
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| 217 | #ifndef STDOUT_FILENO
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| 218 | # define STDOUT_FILENO 1
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| 219 | #endif
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| 220 | #ifndef STDERR_FILENO
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| 221 | # define STDERR_FILENO 2
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| 222 | #endif
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| 223 |
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| 224 | /* Ensure *_OK macros exist. */
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| 225 | #ifndef F_OK
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| 226 | # define F_OK 0
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| 227 | # define X_OK 1
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| 228 | # define W_OK 2
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| 229 | # define R_OK 4
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| 230 | #endif
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| 231 |
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| 232 |
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| 233 | /* Declare overridden functions. */
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| 234 |
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| 235 |
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| 236 | #if defined GNULIB_POSIXCHECK
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| 237 | /* The access() function is a security risk. */
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| 238 | _GL_WARN_ON_USE (access, "the access function is a security risk - "
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| 239 | "use the gnulib module faccessat instead");
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| 240 | #endif
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| 241 |
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| 242 |
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| 243 | #if @GNULIB_CHDIR@
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| 244 | _GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1)));
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| 245 | _GL_CXXALIASWARN (chdir);
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| 246 | #elif defined GNULIB_POSIXCHECK
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| 247 | # undef chdir
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| 248 | # if HAVE_RAW_DECL_CHDIR
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| 249 | _GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - "
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| 250 | "use gnulib module chdir for portability");
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| 251 | # endif
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| 252 | #endif
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| 253 |
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| 254 |
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| 255 | #if @GNULIB_CHOWN@
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| 256 | /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
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| 257 | to GID (if GID is not -1). Follow symbolic links.
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| 258 | Return 0 if successful, otherwise -1 and errno set.
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| 259 | See the POSIX:2008 specification
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| 260 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */
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| 261 | # if @REPLACE_CHOWN@
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| 262 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 263 | # undef chown
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| 264 | # define chown rpl_chown
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| 265 | # endif
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| 266 | _GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)
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| 267 | _GL_ARG_NONNULL ((1)));
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| 268 | _GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid));
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| 269 | # else
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| 270 | # if !@HAVE_CHOWN@
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| 271 | _GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)
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| 272 | _GL_ARG_NONNULL ((1)));
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| 273 | # endif
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| 274 | _GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid));
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| 275 | # endif
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| 276 | _GL_CXXALIASWARN (chown);
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| 277 | #elif defined GNULIB_POSIXCHECK
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| 278 | # undef chown
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| 279 | # if HAVE_RAW_DECL_CHOWN
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| 280 | _GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and "
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| 281 | "doesn't treat a uid or gid of -1 on some systems - "
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| 282 | "use gnulib module chown for portability");
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| 283 | # endif
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| 284 | #endif
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| 285 |
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| 286 |
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| 287 | #if @GNULIB_CLOSE@
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| 288 | # if @REPLACE_CLOSE@
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| 289 | /* Automatically included by modules that need a replacement for close. */
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| 290 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 291 | # undef close
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| 292 | # define close rpl_close
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| 293 | # endif
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| 294 | _GL_FUNCDECL_RPL (close, int, (int fd));
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| 295 | _GL_CXXALIAS_RPL (close, int, (int fd));
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| 296 | # else
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| 297 | _GL_CXXALIAS_SYS (close, int, (int fd));
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| 298 | # endif
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| 299 | _GL_CXXALIASWARN (close);
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| 300 | #elif @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
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| 301 | # undef close
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| 302 | # define close close_used_without_requesting_gnulib_module_close
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| 303 | #elif defined GNULIB_POSIXCHECK
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| 304 | # undef close
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| 305 | /* Assume close is always declared. */
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| 306 | _GL_WARN_ON_USE (close, "close does not portably work on sockets - "
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| 307 | "use gnulib module close for portability");
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| 308 | #endif
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| 309 |
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| 310 |
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| 311 | #if @GNULIB_DUP@
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| 312 | # if @REPLACE_DUP@
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| 313 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 314 | # define dup rpl_dup
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| 315 | # endif
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| 316 | _GL_FUNCDECL_RPL (dup, int, (int oldfd));
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| 317 | _GL_CXXALIAS_RPL (dup, int, (int oldfd));
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| 318 | # else
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| 319 | _GL_CXXALIAS_SYS (dup, int, (int oldfd));
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| 320 | # endif
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| 321 | _GL_CXXALIASWARN (dup);
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| 322 | #elif defined GNULIB_POSIXCHECK
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| 323 | # undef dup
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| 324 | # if HAVE_RAW_DECL_DUP
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| 325 | _GL_WARN_ON_USE (dup, "dup is unportable - "
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| 326 | "use gnulib module dup for portability");
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| 327 | # endif
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| 328 | #endif
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| 329 |
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| 330 |
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| 331 | #if @GNULIB_DUP2@
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| 332 | /* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if
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| 333 | NEWFD = OLDFD, otherwise close NEWFD first if it is open.
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| 334 | Return newfd if successful, otherwise -1 and errno set.
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| 335 | See the POSIX:2008 specification
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| 336 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */
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| 337 | # if @REPLACE_DUP2@
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| 338 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 339 | # define dup2 rpl_dup2
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| 340 | # endif
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| 341 | _GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd));
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| 342 | _GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd));
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| 343 | # else
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| 344 | # if !@HAVE_DUP2@
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| 345 | _GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd));
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| 346 | # endif
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| 347 | _GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
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| 348 | # endif
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| 349 | _GL_CXXALIASWARN (dup2);
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| 350 | #elif defined GNULIB_POSIXCHECK
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| 351 | # undef dup2
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| 352 | # if HAVE_RAW_DECL_DUP2
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| 353 | _GL_WARN_ON_USE (dup2, "dup2 is unportable - "
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| 354 | "use gnulib module dup2 for portability");
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| 355 | # endif
|
|---|
| 356 | #endif
|
|---|
| 357 |
|
|---|
| 358 |
|
|---|
| 359 | #if @GNULIB_DUP3@
|
|---|
| 360 | /* Copy the file descriptor OLDFD into file descriptor NEWFD, with the
|
|---|
| 361 | specified flags.
|
|---|
| 362 | The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
|
|---|
| 363 | and O_TEXT, O_BINARY (defined in "binary-io.h").
|
|---|
| 364 | Close NEWFD first if it is open.
|
|---|
| 365 | Return newfd if successful, otherwise -1 and errno set.
|
|---|
| 366 | See the Linux man page at
|
|---|
| 367 | <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */
|
|---|
| 368 | # if @HAVE_DUP3@
|
|---|
| 369 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 370 | # define dup3 rpl_dup3
|
|---|
| 371 | # endif
|
|---|
| 372 | _GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags));
|
|---|
| 373 | _GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags));
|
|---|
| 374 | # else
|
|---|
| 375 | _GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags));
|
|---|
| 376 | _GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags));
|
|---|
| 377 | # endif
|
|---|
| 378 | _GL_CXXALIASWARN (dup3);
|
|---|
| 379 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 380 | # undef dup3
|
|---|
| 381 | # if HAVE_RAW_DECL_DUP3
|
|---|
| 382 | _GL_WARN_ON_USE (dup3, "dup3 is unportable - "
|
|---|
| 383 | "use gnulib module dup3 for portability");
|
|---|
| 384 | # endif
|
|---|
| 385 | #endif
|
|---|
| 386 |
|
|---|
| 387 |
|
|---|
| 388 | #if @GNULIB_ENVIRON@
|
|---|
| 389 | # if !@HAVE_DECL_ENVIRON@
|
|---|
| 390 | /* Set of environment variables and values. An array of strings of the form
|
|---|
| 391 | "VARIABLE=VALUE", terminated with a NULL. */
|
|---|
| 392 | # if defined __APPLE__ && defined __MACH__
|
|---|
| 393 | # include <crt_externs.h>
|
|---|
| 394 | # define environ (*_NSGetEnviron ())
|
|---|
| 395 | # else
|
|---|
| 396 | # ifdef __cplusplus
|
|---|
| 397 | extern "C" {
|
|---|
| 398 | # endif
|
|---|
| 399 | extern char **environ;
|
|---|
| 400 | # ifdef __cplusplus
|
|---|
| 401 | }
|
|---|
| 402 | # endif
|
|---|
| 403 | # endif
|
|---|
| 404 | # endif
|
|---|
| 405 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 406 | # if HAVE_RAW_DECL_ENVIRON
|
|---|
| 407 | static inline char ***
|
|---|
| 408 | rpl_environ (void)
|
|---|
| 409 | {
|
|---|
| 410 | return &environ;
|
|---|
| 411 | }
|
|---|
| 412 | _GL_WARN_ON_USE (rpl_environ, "environ is unportable - "
|
|---|
| 413 | "use gnulib module environ for portability");
|
|---|
| 414 | # undef environ
|
|---|
| 415 | # define environ (*rpl_environ ())
|
|---|
| 416 | # endif
|
|---|
| 417 | #endif
|
|---|
| 418 |
|
|---|
| 419 |
|
|---|
| 420 | #if @GNULIB_EUIDACCESS@
|
|---|
| 421 | /* Like access(), except that it uses the effective user id and group id of
|
|---|
| 422 | the current process. */
|
|---|
| 423 | # if !@HAVE_EUIDACCESS@
|
|---|
| 424 | _GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode)
|
|---|
| 425 | _GL_ARG_NONNULL ((1)));
|
|---|
| 426 | # endif
|
|---|
| 427 | _GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode));
|
|---|
| 428 | _GL_CXXALIASWARN (euidaccess);
|
|---|
| 429 | # if defined GNULIB_POSIXCHECK
|
|---|
| 430 | /* Like access(), this function is a security risk. */
|
|---|
| 431 | _GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - "
|
|---|
| 432 | "use the gnulib module faccessat instead");
|
|---|
| 433 | # endif
|
|---|
| 434 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 435 | # undef euidaccess
|
|---|
| 436 | # if HAVE_RAW_DECL_EUIDACCESS
|
|---|
| 437 | _GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - "
|
|---|
| 438 | "use gnulib module euidaccess for portability");
|
|---|
| 439 | # endif
|
|---|
| 440 | #endif
|
|---|
| 441 |
|
|---|
| 442 |
|
|---|
| 443 | #if @GNULIB_FACCESSAT@
|
|---|
| 444 | # if !@HAVE_FACCESSAT@
|
|---|
| 445 | _GL_FUNCDECL_SYS (faccessat, int,
|
|---|
| 446 | (int fd, char const *file, int mode, int flag)
|
|---|
| 447 | _GL_ARG_NONNULL ((2)));
|
|---|
| 448 | # endif
|
|---|
| 449 | _GL_CXXALIAS_SYS (faccessat, int,
|
|---|
| 450 | (int fd, char const *file, int mode, int flag));
|
|---|
| 451 | _GL_CXXALIASWARN (faccessat);
|
|---|
| 452 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 453 | # undef faccessat
|
|---|
| 454 | # if HAVE_RAW_DECL_FACCESSAT
|
|---|
| 455 | _GL_WARN_ON_USE (faccessat, "faccessat is not portable - "
|
|---|
| 456 | "use gnulib module faccessat for portability");
|
|---|
| 457 | # endif
|
|---|
| 458 | #endif
|
|---|
| 459 |
|
|---|
| 460 |
|
|---|
| 461 | #if @GNULIB_FCHDIR@
|
|---|
| 462 | /* Change the process' current working directory to the directory on which
|
|---|
| 463 | the given file descriptor is open.
|
|---|
| 464 | Return 0 if successful, otherwise -1 and errno set.
|
|---|
| 465 | See the POSIX:2008 specification
|
|---|
| 466 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */
|
|---|
| 467 | # if ! @HAVE_FCHDIR@
|
|---|
| 468 | _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
|
|---|
| 469 |
|
|---|
| 470 | /* Gnulib internal hooks needed to maintain the fchdir metadata. */
|
|---|
| 471 | _GL_EXTERN_C int _gl_register_fd (int fd, const char *filename)
|
|---|
| 472 | _GL_ARG_NONNULL ((2));
|
|---|
| 473 | _GL_EXTERN_C void _gl_unregister_fd (int fd);
|
|---|
| 474 | _GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd);
|
|---|
| 475 | _GL_EXTERN_C const char *_gl_directory_name (int fd);
|
|---|
| 476 |
|
|---|
| 477 | # else
|
|---|
| 478 | # if !@HAVE_DECL_FCHDIR@
|
|---|
| 479 | _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
|
|---|
| 480 | # endif
|
|---|
| 481 | # endif
|
|---|
| 482 | _GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));
|
|---|
| 483 | _GL_CXXALIASWARN (fchdir);
|
|---|
| 484 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 485 | # undef fchdir
|
|---|
| 486 | # if HAVE_RAW_DECL_FCHDIR
|
|---|
| 487 | _GL_WARN_ON_USE (fchdir, "fchdir is unportable - "
|
|---|
| 488 | "use gnulib module fchdir for portability");
|
|---|
| 489 | # endif
|
|---|
| 490 | #endif
|
|---|
| 491 |
|
|---|
| 492 |
|
|---|
| 493 | #if @GNULIB_FCHOWNAT@
|
|---|
| 494 | # if @REPLACE_FCHOWNAT@
|
|---|
| 495 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 496 | # undef fchownat
|
|---|
| 497 | # define fchownat rpl_fchownat
|
|---|
| 498 | # endif
|
|---|
| 499 | _GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file,
|
|---|
| 500 | uid_t owner, gid_t group, int flag)
|
|---|
| 501 | _GL_ARG_NONNULL ((2)));
|
|---|
| 502 | _GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file,
|
|---|
| 503 | uid_t owner, gid_t group, int flag));
|
|---|
| 504 | # else
|
|---|
| 505 | # if !@HAVE_FCHOWNAT@
|
|---|
| 506 | _GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file,
|
|---|
| 507 | uid_t owner, gid_t group, int flag)
|
|---|
| 508 | _GL_ARG_NONNULL ((2)));
|
|---|
| 509 | # endif
|
|---|
| 510 | _GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file,
|
|---|
| 511 | uid_t owner, gid_t group, int flag));
|
|---|
| 512 | # endif
|
|---|
| 513 | _GL_CXXALIASWARN (fchownat);
|
|---|
| 514 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 515 | # undef fchownat
|
|---|
| 516 | # if HAVE_RAW_DECL_FCHOWNAT
|
|---|
| 517 | _GL_WARN_ON_USE (fchownat, "fchownat is not portable - "
|
|---|
| 518 | "use gnulib module openat for portability");
|
|---|
| 519 | # endif
|
|---|
| 520 | #endif
|
|---|
| 521 |
|
|---|
| 522 |
|
|---|
| 523 | #if @GNULIB_FDATASYNC@
|
|---|
| 524 | /* Synchronize changes to a file.
|
|---|
| 525 | Return 0 if successful, otherwise -1 and errno set.
|
|---|
| 526 | See POSIX:2008 specification
|
|---|
| 527 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */
|
|---|
| 528 | # if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@
|
|---|
| 529 | _GL_FUNCDECL_SYS (fdatasync, int, (int fd));
|
|---|
| 530 | # endif
|
|---|
| 531 | _GL_CXXALIAS_SYS (fdatasync, int, (int fd));
|
|---|
| 532 | _GL_CXXALIASWARN (fdatasync);
|
|---|
| 533 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 534 | # undef fdatasync
|
|---|
| 535 | # if HAVE_RAW_DECL_FDATASYNC
|
|---|
| 536 | _GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - "
|
|---|
| 537 | "use gnulib module fdatasync for portability");
|
|---|
| 538 | # endif
|
|---|
| 539 | #endif
|
|---|
| 540 |
|
|---|
| 541 |
|
|---|
| 542 | #if @GNULIB_FSYNC@
|
|---|
| 543 | /* Synchronize changes, including metadata, to a file.
|
|---|
| 544 | Return 0 if successful, otherwise -1 and errno set.
|
|---|
| 545 | See POSIX:2008 specification
|
|---|
| 546 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>. */
|
|---|
| 547 | # if !@HAVE_FSYNC@
|
|---|
| 548 | _GL_FUNCDECL_SYS (fsync, int, (int fd));
|
|---|
| 549 | # endif
|
|---|
| 550 | _GL_CXXALIAS_SYS (fsync, int, (int fd));
|
|---|
| 551 | _GL_CXXALIASWARN (fsync);
|
|---|
| 552 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 553 | # undef fsync
|
|---|
| 554 | # if HAVE_RAW_DECL_FSYNC
|
|---|
| 555 | _GL_WARN_ON_USE (fsync, "fsync is unportable - "
|
|---|
| 556 | "use gnulib module fsync for portability");
|
|---|
| 557 | # endif
|
|---|
| 558 | #endif
|
|---|
| 559 |
|
|---|
| 560 |
|
|---|
| 561 | #if @GNULIB_FTRUNCATE@
|
|---|
| 562 | /* Change the size of the file to which FD is opened to become equal to LENGTH.
|
|---|
| 563 | Return 0 if successful, otherwise -1 and errno set.
|
|---|
| 564 | See the POSIX:2008 specification
|
|---|
| 565 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */
|
|---|
| 566 | # if @REPLACE_FTRUNCATE@
|
|---|
| 567 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 568 | # undef ftruncate
|
|---|
| 569 | # define ftruncate rpl_ftruncate
|
|---|
| 570 | # endif
|
|---|
| 571 | _GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length));
|
|---|
| 572 | _GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length));
|
|---|
| 573 | # else
|
|---|
| 574 | # if !@HAVE_FTRUNCATE@
|
|---|
| 575 | _GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
|
|---|
| 576 | # endif
|
|---|
| 577 | _GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
|
|---|
| 578 | # endif
|
|---|
| 579 | _GL_CXXALIASWARN (ftruncate);
|
|---|
| 580 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 581 | # undef ftruncate
|
|---|
| 582 | # if HAVE_RAW_DECL_FTRUNCATE
|
|---|
| 583 | _GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - "
|
|---|
| 584 | "use gnulib module ftruncate for portability");
|
|---|
| 585 | # endif
|
|---|
| 586 | #endif
|
|---|
| 587 |
|
|---|
| 588 |
|
|---|
| 589 | #if @GNULIB_GETCWD@
|
|---|
| 590 | /* Get the name of the current working directory, and put it in SIZE bytes
|
|---|
| 591 | of BUF.
|
|---|
| 592 | Return BUF if successful, or NULL if the directory couldn't be determined
|
|---|
| 593 | or SIZE was too small.
|
|---|
| 594 | See the POSIX:2008 specification
|
|---|
| 595 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
|
|---|
| 596 | Additionally, the gnulib module 'getcwd' guarantees the following GNU
|
|---|
| 597 | extension: If BUF is NULL, an array is allocated with 'malloc'; the array
|
|---|
| 598 | is SIZE bytes long, unless SIZE == 0, in which case it is as big as
|
|---|
| 599 | necessary. */
|
|---|
| 600 | # if @REPLACE_GETCWD@
|
|---|
| 601 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 602 | # define getcwd rpl_getcwd
|
|---|
| 603 | # endif
|
|---|
| 604 | _GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size));
|
|---|
| 605 | _GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size));
|
|---|
| 606 | # else
|
|---|
| 607 | /* Need to cast, because on mingw, the second parameter is
|
|---|
| 608 | int size. */
|
|---|
| 609 | _GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size));
|
|---|
| 610 | # endif
|
|---|
| 611 | _GL_CXXALIASWARN (getcwd);
|
|---|
| 612 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 613 | # undef getcwd
|
|---|
| 614 | # if HAVE_RAW_DECL_GETCWD
|
|---|
| 615 | _GL_WARN_ON_USE (getcwd, "getcwd is unportable - "
|
|---|
| 616 | "use gnulib module getcwd for portability");
|
|---|
| 617 | # endif
|
|---|
| 618 | #endif
|
|---|
| 619 |
|
|---|
| 620 |
|
|---|
| 621 | #if @GNULIB_GETDOMAINNAME@
|
|---|
| 622 | /* Return the NIS domain name of the machine.
|
|---|
| 623 | WARNING! The NIS domain name is unrelated to the fully qualified host name
|
|---|
| 624 | of the machine. It is also unrelated to email addresses.
|
|---|
| 625 | WARNING! The NIS domain name is usually the empty string or "(none)" when
|
|---|
| 626 | not using NIS.
|
|---|
| 627 |
|
|---|
| 628 | Put up to LEN bytes of the NIS domain name into NAME.
|
|---|
| 629 | Null terminate it if the name is shorter than LEN.
|
|---|
| 630 | If the NIS domain name is longer than LEN, set errno = EINVAL and return -1.
|
|---|
| 631 | Return 0 if successful, otherwise set errno and return -1. */
|
|---|
| 632 | # if @REPLACE_GETDOMAINNAME@
|
|---|
| 633 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 634 | # undef getdomainname
|
|---|
| 635 | # define getdomainname rpl_getdomainname
|
|---|
| 636 | # endif
|
|---|
| 637 | _GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len)
|
|---|
| 638 | _GL_ARG_NONNULL ((1)));
|
|---|
| 639 | _GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len));
|
|---|
| 640 | # else
|
|---|
| 641 | # if !@HAVE_DECL_GETDOMAINNAME@
|
|---|
| 642 | _GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len)
|
|---|
| 643 | _GL_ARG_NONNULL ((1)));
|
|---|
| 644 | # endif
|
|---|
| 645 | _GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len));
|
|---|
| 646 | # endif
|
|---|
| 647 | _GL_CXXALIASWARN (getdomainname);
|
|---|
| 648 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 649 | # undef getdomainname
|
|---|
| 650 | # if HAVE_RAW_DECL_GETDOMAINNAME
|
|---|
| 651 | _GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - "
|
|---|
| 652 | "use gnulib module getdomainname for portability");
|
|---|
| 653 | # endif
|
|---|
| 654 | #endif
|
|---|
| 655 |
|
|---|
| 656 |
|
|---|
| 657 | #if @GNULIB_GETDTABLESIZE@
|
|---|
| 658 | /* Return the maximum number of file descriptors in the current process.
|
|---|
| 659 | In POSIX, this is same as sysconf (_SC_OPEN_MAX). */
|
|---|
| 660 | # if !@HAVE_GETDTABLESIZE@
|
|---|
| 661 | _GL_FUNCDECL_SYS (getdtablesize, int, (void));
|
|---|
| 662 | # endif
|
|---|
| 663 | _GL_CXXALIAS_SYS (getdtablesize, int, (void));
|
|---|
| 664 | _GL_CXXALIASWARN (getdtablesize);
|
|---|
| 665 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 666 | # undef getdtablesize
|
|---|
| 667 | # if HAVE_RAW_DECL_GETDTABLESIZE
|
|---|
| 668 | _GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - "
|
|---|
| 669 | "use gnulib module getdtablesize for portability");
|
|---|
| 670 | # endif
|
|---|
| 671 | #endif
|
|---|
| 672 |
|
|---|
| 673 |
|
|---|
| 674 | #if @GNULIB_GETGROUPS@
|
|---|
| 675 | /* Return the supplemental groups that the current process belongs to.
|
|---|
| 676 | It is unspecified whether the effective group id is in the list.
|
|---|
| 677 | If N is 0, return the group count; otherwise, N describes how many
|
|---|
| 678 | entries are available in GROUPS. Return -1 and set errno if N is
|
|---|
| 679 | not 0 and not large enough. Fails with ENOSYS on some systems. */
|
|---|
| 680 | # if @REPLACE_GETGROUPS@
|
|---|
| 681 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 682 | # undef getgroups
|
|---|
| 683 | # define getgroups rpl_getgroups
|
|---|
| 684 | # endif
|
|---|
| 685 | _GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups));
|
|---|
| 686 | _GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups));
|
|---|
| 687 | # else
|
|---|
| 688 | # if !@HAVE_GETGROUPS@
|
|---|
| 689 | _GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups));
|
|---|
| 690 | # endif
|
|---|
| 691 | _GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups));
|
|---|
| 692 | # endif
|
|---|
| 693 | _GL_CXXALIASWARN (getgroups);
|
|---|
| 694 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 695 | # undef getgroups
|
|---|
| 696 | # if HAVE_RAW_DECL_GETGROUPS
|
|---|
| 697 | _GL_WARN_ON_USE (getgroups, "getgroups is unportable - "
|
|---|
| 698 | "use gnulib module getgroups for portability");
|
|---|
| 699 | # endif
|
|---|
| 700 | #endif
|
|---|
| 701 |
|
|---|
| 702 |
|
|---|
| 703 | #if @GNULIB_GETHOSTNAME@
|
|---|
| 704 | /* Return the standard host name of the machine.
|
|---|
| 705 | WARNING! The host name may or may not be fully qualified.
|
|---|
| 706 |
|
|---|
| 707 | Put up to LEN bytes of the host name into NAME.
|
|---|
| 708 | Null terminate it if the name is shorter than LEN.
|
|---|
| 709 | If the host name is longer than LEN, set errno = EINVAL and return -1.
|
|---|
| 710 | Return 0 if successful, otherwise set errno and return -1. */
|
|---|
| 711 | # if @UNISTD_H_HAVE_WINSOCK2_H@
|
|---|
| 712 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 713 | # undef gethostname
|
|---|
| 714 | # define gethostname rpl_gethostname
|
|---|
| 715 | # endif
|
|---|
| 716 | _GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len)
|
|---|
| 717 | _GL_ARG_NONNULL ((1)));
|
|---|
| 718 | _GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len));
|
|---|
| 719 | # else
|
|---|
| 720 | # if !@HAVE_GETHOSTNAME@
|
|---|
| 721 | _GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len)
|
|---|
| 722 | _GL_ARG_NONNULL ((1)));
|
|---|
| 723 | # endif
|
|---|
| 724 | /* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second
|
|---|
| 725 | parameter is
|
|---|
| 726 | int len. */
|
|---|
| 727 | _GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len));
|
|---|
| 728 | # endif
|
|---|
| 729 | _GL_CXXALIASWARN (gethostname);
|
|---|
| 730 | #elif @UNISTD_H_HAVE_WINSOCK2_H@
|
|---|
| 731 | # undef gethostname
|
|---|
| 732 | # define gethostname gethostname_used_without_requesting_gnulib_module_gethostname
|
|---|
| 733 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 734 | # undef gethostname
|
|---|
| 735 | # if HAVE_RAW_DECL_GETHOSTNAME
|
|---|
| 736 | _GL_WARN_ON_USE (gethostname, "gethostname is unportable - "
|
|---|
| 737 | "use gnulib module gethostname for portability");
|
|---|
| 738 | # endif
|
|---|
| 739 | #endif
|
|---|
| 740 |
|
|---|
| 741 |
|
|---|
| 742 | #if @GNULIB_GETLOGIN@
|
|---|
| 743 | /* Returns the user's login name, or NULL if it cannot be found. Upon error,
|
|---|
| 744 | returns NULL with errno set.
|
|---|
| 745 |
|
|---|
| 746 | See <http://www.opengroup.org/susv3xsh/getlogin.html>.
|
|---|
| 747 |
|
|---|
| 748 | Most programs don't need to use this function, because the information is
|
|---|
| 749 | available through environment variables:
|
|---|
| 750 | ${LOGNAME-$USER} on Unix platforms,
|
|---|
| 751 | $USERNAME on native Windows platforms.
|
|---|
| 752 | */
|
|---|
| 753 | # if !@HAVE_GETLOGIN@
|
|---|
| 754 | _GL_FUNCDECL_SYS (getlogin, char *, (void));
|
|---|
| 755 | # endif
|
|---|
| 756 | _GL_CXXALIAS_SYS (getlogin, char *, (void));
|
|---|
| 757 | _GL_CXXALIASWARN (getlogin);
|
|---|
| 758 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 759 | # undef getlogin
|
|---|
| 760 | # if HAVE_RAW_DECL_GETLOGIN
|
|---|
| 761 | _GL_WARN_ON_USE (getlogin, "getlogin is unportable - "
|
|---|
| 762 | "use gnulib module getlogin for portability");
|
|---|
| 763 | # endif
|
|---|
| 764 | #endif
|
|---|
| 765 |
|
|---|
| 766 |
|
|---|
| 767 | #if @GNULIB_GETLOGIN_R@
|
|---|
| 768 | /* Copies the user's login name to NAME.
|
|---|
| 769 | The array pointed to by NAME has room for SIZE bytes.
|
|---|
| 770 |
|
|---|
| 771 | Returns 0 if successful. Upon error, an error number is returned, or -1 in
|
|---|
| 772 | the case that the login name cannot be found but no specific error is
|
|---|
| 773 | provided (this case is hopefully rare but is left open by the POSIX spec).
|
|---|
| 774 |
|
|---|
| 775 | See <http://www.opengroup.org/susv3xsh/getlogin.html>.
|
|---|
| 776 |
|
|---|
| 777 | Most programs don't need to use this function, because the information is
|
|---|
| 778 | available through environment variables:
|
|---|
| 779 | ${LOGNAME-$USER} on Unix platforms,
|
|---|
| 780 | $USERNAME on native Windows platforms.
|
|---|
| 781 | */
|
|---|
| 782 | # if @REPLACE_GETLOGIN_R@
|
|---|
| 783 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 784 | # define getlogin_r rpl_getlogin_r
|
|---|
| 785 | # endif
|
|---|
| 786 | _GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size)
|
|---|
| 787 | _GL_ARG_NONNULL ((1)));
|
|---|
| 788 | _GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size));
|
|---|
| 789 | # else
|
|---|
| 790 | # if !@HAVE_DECL_GETLOGIN_R@
|
|---|
| 791 | _GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size)
|
|---|
| 792 | _GL_ARG_NONNULL ((1)));
|
|---|
| 793 | # endif
|
|---|
| 794 | /* Need to cast, because on Solaris 10 systems, the second argument is
|
|---|
| 795 | int size. */
|
|---|
| 796 | _GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size));
|
|---|
| 797 | # endif
|
|---|
| 798 | _GL_CXXALIASWARN (getlogin_r);
|
|---|
| 799 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 800 | # undef getlogin_r
|
|---|
| 801 | # if HAVE_RAW_DECL_GETLOGIN_R
|
|---|
| 802 | _GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - "
|
|---|
| 803 | "use gnulib module getlogin_r for portability");
|
|---|
| 804 | # endif
|
|---|
| 805 | #endif
|
|---|
| 806 |
|
|---|
| 807 |
|
|---|
| 808 | #if @GNULIB_GETPAGESIZE@
|
|---|
| 809 | # if @REPLACE_GETPAGESIZE@
|
|---|
| 810 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 811 | # define getpagesize rpl_getpagesize
|
|---|
| 812 | # endif
|
|---|
| 813 | _GL_FUNCDECL_RPL (getpagesize, int, (void));
|
|---|
| 814 | _GL_CXXALIAS_RPL (getpagesize, int, (void));
|
|---|
| 815 | # else
|
|---|
| 816 | # if !@HAVE_GETPAGESIZE@
|
|---|
| 817 | # if !defined getpagesize
|
|---|
| 818 | /* This is for POSIX systems. */
|
|---|
| 819 | # if !defined _gl_getpagesize && defined _SC_PAGESIZE
|
|---|
| 820 | # if ! (defined __VMS && __VMS_VER < 70000000)
|
|---|
| 821 | # define _gl_getpagesize() sysconf (_SC_PAGESIZE)
|
|---|
| 822 | # endif
|
|---|
| 823 | # endif
|
|---|
| 824 | /* This is for older VMS. */
|
|---|
| 825 | # if !defined _gl_getpagesize && defined __VMS
|
|---|
| 826 | # ifdef __ALPHA
|
|---|
| 827 | # define _gl_getpagesize() 8192
|
|---|
| 828 | # else
|
|---|
| 829 | # define _gl_getpagesize() 512
|
|---|
| 830 | # endif
|
|---|
| 831 | # endif
|
|---|
| 832 | /* This is for BeOS. */
|
|---|
| 833 | # if !defined _gl_getpagesize && @HAVE_OS_H@
|
|---|
| 834 | # include <OS.h>
|
|---|
| 835 | # if defined B_PAGE_SIZE
|
|---|
| 836 | # define _gl_getpagesize() B_PAGE_SIZE
|
|---|
| 837 | # endif
|
|---|
| 838 | # endif
|
|---|
| 839 | /* This is for AmigaOS4.0. */
|
|---|
| 840 | # if !defined _gl_getpagesize && defined __amigaos4__
|
|---|
| 841 | # define _gl_getpagesize() 2048
|
|---|
| 842 | # endif
|
|---|
| 843 | /* This is for older Unix systems. */
|
|---|
| 844 | # if !defined _gl_getpagesize && @HAVE_SYS_PARAM_H@
|
|---|
| 845 | # include <sys/param.h>
|
|---|
| 846 | # ifdef EXEC_PAGESIZE
|
|---|
| 847 | # define _gl_getpagesize() EXEC_PAGESIZE
|
|---|
| 848 | # else
|
|---|
| 849 | # ifdef NBPG
|
|---|
| 850 | # ifndef CLSIZE
|
|---|
| 851 | # define CLSIZE 1
|
|---|
| 852 | # endif
|
|---|
| 853 | # define _gl_getpagesize() (NBPG * CLSIZE)
|
|---|
| 854 | # else
|
|---|
| 855 | # ifdef NBPC
|
|---|
| 856 | # define _gl_getpagesize() NBPC
|
|---|
| 857 | # endif
|
|---|
| 858 | # endif
|
|---|
| 859 | # endif
|
|---|
| 860 | # endif
|
|---|
| 861 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 862 | # define getpagesize() _gl_getpagesize ()
|
|---|
| 863 | # else
|
|---|
| 864 | # if !GNULIB_defined_getpagesize_function
|
|---|
| 865 | static inline int
|
|---|
| 866 | getpagesize ()
|
|---|
| 867 | {
|
|---|
| 868 | return _gl_getpagesize ();
|
|---|
| 869 | }
|
|---|
| 870 | # define GNULIB_defined_getpagesize_function 1
|
|---|
| 871 | # endif
|
|---|
| 872 | # endif
|
|---|
| 873 | # endif
|
|---|
| 874 | # endif
|
|---|
| 875 | /* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t. */
|
|---|
| 876 | _GL_CXXALIAS_SYS_CAST (getpagesize, int, (void));
|
|---|
| 877 | # endif
|
|---|
| 878 | # if @HAVE_DECL_GETPAGESIZE@
|
|---|
| 879 | _GL_CXXALIASWARN (getpagesize);
|
|---|
| 880 | # endif
|
|---|
| 881 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 882 | # undef getpagesize
|
|---|
| 883 | # if HAVE_RAW_DECL_GETPAGESIZE
|
|---|
| 884 | _GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - "
|
|---|
| 885 | "use gnulib module getpagesize for portability");
|
|---|
| 886 | # endif
|
|---|
| 887 | #endif
|
|---|
| 888 |
|
|---|
| 889 |
|
|---|
| 890 | #if @GNULIB_GETUSERSHELL@
|
|---|
| 891 | /* Return the next valid login shell on the system, or NULL when the end of
|
|---|
| 892 | the list has been reached. */
|
|---|
| 893 | # if !@HAVE_DECL_GETUSERSHELL@
|
|---|
| 894 | _GL_FUNCDECL_SYS (getusershell, char *, (void));
|
|---|
| 895 | # endif
|
|---|
| 896 | _GL_CXXALIAS_SYS (getusershell, char *, (void));
|
|---|
| 897 | _GL_CXXALIASWARN (getusershell);
|
|---|
| 898 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 899 | # undef getusershell
|
|---|
| 900 | # if HAVE_RAW_DECL_GETUSERSHELL
|
|---|
| 901 | _GL_WARN_ON_USE (getusershell, "getusershell is unportable - "
|
|---|
| 902 | "use gnulib module getusershell for portability");
|
|---|
| 903 | # endif
|
|---|
| 904 | #endif
|
|---|
| 905 |
|
|---|
| 906 | #if @GNULIB_GETUSERSHELL@
|
|---|
| 907 | /* Rewind to pointer that is advanced at each getusershell() call. */
|
|---|
| 908 | # if !@HAVE_DECL_GETUSERSHELL@
|
|---|
| 909 | _GL_FUNCDECL_SYS (setusershell, void, (void));
|
|---|
| 910 | # endif
|
|---|
| 911 | _GL_CXXALIAS_SYS (setusershell, void, (void));
|
|---|
| 912 | _GL_CXXALIASWARN (setusershell);
|
|---|
| 913 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 914 | # undef setusershell
|
|---|
| 915 | # if HAVE_RAW_DECL_SETUSERSHELL
|
|---|
| 916 | _GL_WARN_ON_USE (setusershell, "setusershell is unportable - "
|
|---|
| 917 | "use gnulib module getusershell for portability");
|
|---|
| 918 | # endif
|
|---|
| 919 | #endif
|
|---|
| 920 |
|
|---|
| 921 | #if @GNULIB_GETUSERSHELL@
|
|---|
| 922 | /* Free the pointer that is advanced at each getusershell() call and
|
|---|
| 923 | associated resources. */
|
|---|
| 924 | # if !@HAVE_DECL_GETUSERSHELL@
|
|---|
| 925 | _GL_FUNCDECL_SYS (endusershell, void, (void));
|
|---|
| 926 | # endif
|
|---|
| 927 | _GL_CXXALIAS_SYS (endusershell, void, (void));
|
|---|
| 928 | _GL_CXXALIASWARN (endusershell);
|
|---|
| 929 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 930 | # undef endusershell
|
|---|
| 931 | # if HAVE_RAW_DECL_ENDUSERSHELL
|
|---|
| 932 | _GL_WARN_ON_USE (endusershell, "endusershell is unportable - "
|
|---|
| 933 | "use gnulib module getusershell for portability");
|
|---|
| 934 | # endif
|
|---|
| 935 | #endif
|
|---|
| 936 |
|
|---|
| 937 |
|
|---|
| 938 | #if @GNULIB_GROUP_MEMBER@
|
|---|
| 939 | /* Determine whether group id is in calling user's group list. */
|
|---|
| 940 | # if !@HAVE_GROUP_MEMBER@
|
|---|
| 941 | _GL_FUNCDECL_SYS (group_member, int, (gid_t gid));
|
|---|
| 942 | # endif
|
|---|
| 943 | _GL_CXXALIAS_SYS (group_member, int, (gid_t gid));
|
|---|
| 944 | _GL_CXXALIASWARN (group_member);
|
|---|
| 945 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 946 | # undef group_member
|
|---|
| 947 | # if HAVE_RAW_DECL_GROUP_MEMBER
|
|---|
| 948 | _GL_WARN_ON_USE (group_member, "group_member is unportable - "
|
|---|
| 949 | "use gnulib module group-member for portability");
|
|---|
| 950 | # endif
|
|---|
| 951 | #endif
|
|---|
| 952 |
|
|---|
| 953 |
|
|---|
| 954 | #if @GNULIB_ISATTY@
|
|---|
| 955 | # if @REPLACE_ISATTY@
|
|---|
| 956 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 957 | # undef isatty
|
|---|
| 958 | # define isatty rpl_isatty
|
|---|
| 959 | # endif
|
|---|
| 960 | _GL_FUNCDECL_RPL (isatty, int, (int fd));
|
|---|
| 961 | _GL_CXXALIAS_RPL (isatty, int, (int fd));
|
|---|
| 962 | # else
|
|---|
| 963 | _GL_CXXALIAS_SYS (isatty, int, (int fd));
|
|---|
| 964 | # endif
|
|---|
| 965 | _GL_CXXALIASWARN (isatty);
|
|---|
| 966 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 967 | # undef isatty
|
|---|
| 968 | # if HAVE_RAW_DECL_ISATTY
|
|---|
| 969 | _GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - "
|
|---|
| 970 | "use gnulib module isatty for portability");
|
|---|
| 971 | # endif
|
|---|
| 972 | #endif
|
|---|
| 973 |
|
|---|
| 974 |
|
|---|
| 975 | #if @GNULIB_LCHOWN@
|
|---|
| 976 | /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
|
|---|
| 977 | to GID (if GID is not -1). Do not follow symbolic links.
|
|---|
| 978 | Return 0 if successful, otherwise -1 and errno set.
|
|---|
| 979 | See the POSIX:2008 specification
|
|---|
| 980 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */
|
|---|
| 981 | # if @REPLACE_LCHOWN@
|
|---|
| 982 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 983 | # undef lchown
|
|---|
| 984 | # define lchown rpl_lchown
|
|---|
| 985 | # endif
|
|---|
| 986 | _GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)
|
|---|
| 987 | _GL_ARG_NONNULL ((1)));
|
|---|
| 988 | _GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group));
|
|---|
| 989 | # else
|
|---|
| 990 | # if !@HAVE_LCHOWN@
|
|---|
| 991 | _GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)
|
|---|
| 992 | _GL_ARG_NONNULL ((1)));
|
|---|
| 993 | # endif
|
|---|
| 994 | _GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group));
|
|---|
| 995 | # endif
|
|---|
| 996 | _GL_CXXALIASWARN (lchown);
|
|---|
| 997 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 998 | # undef lchown
|
|---|
| 999 | # if HAVE_RAW_DECL_LCHOWN
|
|---|
| 1000 | _GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - "
|
|---|
| 1001 | "use gnulib module lchown for portability");
|
|---|
| 1002 | # endif
|
|---|
| 1003 | #endif
|
|---|
| 1004 |
|
|---|
| 1005 |
|
|---|
| 1006 | #if @GNULIB_LINK@
|
|---|
| 1007 | /* Create a new hard link for an existing file.
|
|---|
| 1008 | Return 0 if successful, otherwise -1 and errno set.
|
|---|
| 1009 | See POSIX:2008 specification
|
|---|
| 1010 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */
|
|---|
| 1011 | # if @REPLACE_LINK@
|
|---|
| 1012 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1013 | # define link rpl_link
|
|---|
| 1014 | # endif
|
|---|
| 1015 | _GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2)
|
|---|
| 1016 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 1017 | _GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2));
|
|---|
| 1018 | # else
|
|---|
| 1019 | # if !@HAVE_LINK@
|
|---|
| 1020 | _GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2)
|
|---|
| 1021 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 1022 | # endif
|
|---|
| 1023 | _GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2));
|
|---|
| 1024 | # endif
|
|---|
| 1025 | _GL_CXXALIASWARN (link);
|
|---|
| 1026 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1027 | # undef link
|
|---|
| 1028 | # if HAVE_RAW_DECL_LINK
|
|---|
| 1029 | _GL_WARN_ON_USE (link, "link is unportable - "
|
|---|
| 1030 | "use gnulib module link for portability");
|
|---|
| 1031 | # endif
|
|---|
| 1032 | #endif
|
|---|
| 1033 |
|
|---|
| 1034 |
|
|---|
| 1035 | #if @GNULIB_LINKAT@
|
|---|
| 1036 | /* Create a new hard link for an existing file, relative to two
|
|---|
| 1037 | directories. FLAG controls whether symlinks are followed.
|
|---|
| 1038 | Return 0 if successful, otherwise -1 and errno set. */
|
|---|
| 1039 | # if @REPLACE_LINKAT@
|
|---|
| 1040 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1041 | # undef linkat
|
|---|
| 1042 | # define linkat rpl_linkat
|
|---|
| 1043 | # endif
|
|---|
| 1044 | _GL_FUNCDECL_RPL (linkat, int,
|
|---|
| 1045 | (int fd1, const char *path1, int fd2, const char *path2,
|
|---|
| 1046 | int flag)
|
|---|
| 1047 | _GL_ARG_NONNULL ((2, 4)));
|
|---|
| 1048 | _GL_CXXALIAS_RPL (linkat, int,
|
|---|
| 1049 | (int fd1, const char *path1, int fd2, const char *path2,
|
|---|
| 1050 | int flag));
|
|---|
| 1051 | # else
|
|---|
| 1052 | # if !@HAVE_LINKAT@
|
|---|
| 1053 | _GL_FUNCDECL_SYS (linkat, int,
|
|---|
| 1054 | (int fd1, const char *path1, int fd2, const char *path2,
|
|---|
| 1055 | int flag)
|
|---|
| 1056 | _GL_ARG_NONNULL ((2, 4)));
|
|---|
| 1057 | # endif
|
|---|
| 1058 | _GL_CXXALIAS_SYS (linkat, int,
|
|---|
| 1059 | (int fd1, const char *path1, int fd2, const char *path2,
|
|---|
| 1060 | int flag));
|
|---|
| 1061 | # endif
|
|---|
| 1062 | _GL_CXXALIASWARN (linkat);
|
|---|
| 1063 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1064 | # undef linkat
|
|---|
| 1065 | # if HAVE_RAW_DECL_LINKAT
|
|---|
| 1066 | _GL_WARN_ON_USE (linkat, "linkat is unportable - "
|
|---|
| 1067 | "use gnulib module linkat for portability");
|
|---|
| 1068 | # endif
|
|---|
| 1069 | #endif
|
|---|
| 1070 |
|
|---|
| 1071 |
|
|---|
| 1072 | #if @GNULIB_LSEEK@
|
|---|
| 1073 | /* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
|
|---|
| 1074 | Return the new offset if successful, otherwise -1 and errno set.
|
|---|
| 1075 | See the POSIX:2008 specification
|
|---|
| 1076 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */
|
|---|
| 1077 | # if @REPLACE_LSEEK@
|
|---|
| 1078 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1079 | # define lseek rpl_lseek
|
|---|
| 1080 | # endif
|
|---|
| 1081 | _GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence));
|
|---|
| 1082 | _GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence));
|
|---|
| 1083 | # else
|
|---|
| 1084 | _GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence));
|
|---|
| 1085 | # endif
|
|---|
| 1086 | _GL_CXXALIASWARN (lseek);
|
|---|
| 1087 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1088 | # undef lseek
|
|---|
| 1089 | # if HAVE_RAW_DECL_LSEEK
|
|---|
| 1090 | _GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some "
|
|---|
| 1091 | "systems - use gnulib module lseek for portability");
|
|---|
| 1092 | # endif
|
|---|
| 1093 | #endif
|
|---|
| 1094 |
|
|---|
| 1095 |
|
|---|
| 1096 | #if @GNULIB_PIPE@
|
|---|
| 1097 | /* Create a pipe, defaulting to O_BINARY mode.
|
|---|
| 1098 | Store the read-end as fd[0] and the write-end as fd[1].
|
|---|
| 1099 | Return 0 upon success, or -1 with errno set upon failure. */
|
|---|
| 1100 | # if !@HAVE_PIPE@
|
|---|
| 1101 | _GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1)));
|
|---|
| 1102 | # endif
|
|---|
| 1103 | _GL_CXXALIAS_SYS (pipe, int, (int fd[2]));
|
|---|
| 1104 | _GL_CXXALIASWARN (pipe);
|
|---|
| 1105 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1106 | # undef pipe
|
|---|
| 1107 | # if HAVE_RAW_DECL_PIPE
|
|---|
| 1108 | _GL_WARN_ON_USE (pipe, "pipe is unportable - "
|
|---|
| 1109 | "use gnulib module pipe-posix for portability");
|
|---|
| 1110 | # endif
|
|---|
| 1111 | #endif
|
|---|
| 1112 |
|
|---|
| 1113 |
|
|---|
| 1114 | #if @GNULIB_PIPE2@
|
|---|
| 1115 | /* Create a pipe, applying the given flags when opening the read-end of the
|
|---|
| 1116 | pipe and the write-end of the pipe.
|
|---|
| 1117 | The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
|
|---|
| 1118 | and O_TEXT, O_BINARY (defined in "binary-io.h").
|
|---|
| 1119 | Store the read-end as fd[0] and the write-end as fd[1].
|
|---|
| 1120 | Return 0 upon success, or -1 with errno set upon failure.
|
|---|
| 1121 | See also the Linux man page at
|
|---|
| 1122 | <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */
|
|---|
| 1123 | # if @HAVE_PIPE2@
|
|---|
| 1124 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1125 | # define pipe2 rpl_pipe2
|
|---|
| 1126 | # endif
|
|---|
| 1127 | _GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
|
|---|
| 1128 | _GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags));
|
|---|
| 1129 | # else
|
|---|
| 1130 | _GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
|
|---|
| 1131 | _GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags));
|
|---|
| 1132 | # endif
|
|---|
| 1133 | _GL_CXXALIASWARN (pipe2);
|
|---|
| 1134 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1135 | # undef pipe2
|
|---|
| 1136 | # if HAVE_RAW_DECL_PIPE2
|
|---|
| 1137 | _GL_WARN_ON_USE (pipe2, "pipe2 is unportable - "
|
|---|
| 1138 | "use gnulib module pipe2 for portability");
|
|---|
| 1139 | # endif
|
|---|
| 1140 | #endif
|
|---|
| 1141 |
|
|---|
| 1142 |
|
|---|
| 1143 | #if @GNULIB_PREAD@
|
|---|
| 1144 | /* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET.
|
|---|
| 1145 | Return the number of bytes placed into BUF if successful, otherwise
|
|---|
| 1146 | set errno and return -1. 0 indicates EOF.
|
|---|
| 1147 | See the POSIX:2008 specification
|
|---|
| 1148 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>. */
|
|---|
| 1149 | # if @REPLACE_PREAD@
|
|---|
| 1150 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1151 | # undef pread
|
|---|
| 1152 | # define pread rpl_pread
|
|---|
| 1153 | # endif
|
|---|
| 1154 | _GL_FUNCDECL_RPL (pread, ssize_t,
|
|---|
| 1155 | (int fd, void *buf, size_t bufsize, off_t offset)
|
|---|
| 1156 | _GL_ARG_NONNULL ((2)));
|
|---|
| 1157 | _GL_CXXALIAS_RPL (pread, ssize_t,
|
|---|
| 1158 | (int fd, void *buf, size_t bufsize, off_t offset));
|
|---|
| 1159 | # else
|
|---|
| 1160 | # if !@HAVE_PREAD@
|
|---|
| 1161 | _GL_FUNCDECL_SYS (pread, ssize_t,
|
|---|
| 1162 | (int fd, void *buf, size_t bufsize, off_t offset)
|
|---|
| 1163 | _GL_ARG_NONNULL ((2)));
|
|---|
| 1164 | # endif
|
|---|
| 1165 | _GL_CXXALIAS_SYS (pread, ssize_t,
|
|---|
| 1166 | (int fd, void *buf, size_t bufsize, off_t offset));
|
|---|
| 1167 | # endif
|
|---|
| 1168 | _GL_CXXALIASWARN (pread);
|
|---|
| 1169 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1170 | # undef pread
|
|---|
| 1171 | # if HAVE_RAW_DECL_PREAD
|
|---|
| 1172 | _GL_WARN_ON_USE (pread, "pread is unportable - "
|
|---|
| 1173 | "use gnulib module pread for portability");
|
|---|
| 1174 | # endif
|
|---|
| 1175 | #endif
|
|---|
| 1176 |
|
|---|
| 1177 |
|
|---|
| 1178 | #if @GNULIB_PWRITE@
|
|---|
| 1179 | /* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET.
|
|---|
| 1180 | Return the number of bytes written if successful, otherwise
|
|---|
| 1181 | set errno and return -1. 0 indicates nothing written. See the
|
|---|
| 1182 | POSIX:2008 specification
|
|---|
| 1183 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */
|
|---|
| 1184 | # if @REPLACE_PWRITE@
|
|---|
| 1185 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1186 | # undef pwrite
|
|---|
| 1187 | # define pwrite rpl_pwrite
|
|---|
| 1188 | # endif
|
|---|
| 1189 | _GL_FUNCDECL_RPL (pwrite, ssize_t,
|
|---|
| 1190 | (int fd, const void *buf, size_t bufsize, off_t offset)
|
|---|
| 1191 | _GL_ARG_NONNULL ((2)));
|
|---|
| 1192 | _GL_CXXALIAS_RPL (pwrite, ssize_t,
|
|---|
| 1193 | (int fd, const void *buf, size_t bufsize, off_t offset));
|
|---|
| 1194 | # else
|
|---|
| 1195 | # if !@HAVE_PWRITE@
|
|---|
| 1196 | _GL_FUNCDECL_SYS (pwrite, ssize_t,
|
|---|
| 1197 | (int fd, const void *buf, size_t bufsize, off_t offset)
|
|---|
| 1198 | _GL_ARG_NONNULL ((2)));
|
|---|
| 1199 | # endif
|
|---|
| 1200 | _GL_CXXALIAS_SYS (pwrite, ssize_t,
|
|---|
| 1201 | (int fd, const void *buf, size_t bufsize, off_t offset));
|
|---|
| 1202 | # endif
|
|---|
| 1203 | _GL_CXXALIASWARN (pwrite);
|
|---|
| 1204 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1205 | # undef pwrite
|
|---|
| 1206 | # if HAVE_RAW_DECL_PWRITE
|
|---|
| 1207 | _GL_WARN_ON_USE (pwrite, "pwrite is unportable - "
|
|---|
| 1208 | "use gnulib module pwrite for portability");
|
|---|
| 1209 | # endif
|
|---|
| 1210 | #endif
|
|---|
| 1211 |
|
|---|
| 1212 |
|
|---|
| 1213 | #if @GNULIB_READ@
|
|---|
| 1214 | /* Read up to COUNT bytes from file descriptor FD into the buffer starting
|
|---|
| 1215 | at BUF. See the POSIX:2008 specification
|
|---|
| 1216 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */
|
|---|
| 1217 | # if @REPLACE_READ@
|
|---|
| 1218 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1219 | # undef read
|
|---|
| 1220 | # define read rpl_read
|
|---|
| 1221 | # endif
|
|---|
| 1222 | _GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count)
|
|---|
| 1223 | _GL_ARG_NONNULL ((2)));
|
|---|
| 1224 | _GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count));
|
|---|
| 1225 | # else
|
|---|
| 1226 | /* Need to cast, because on mingw, the third parameter is
|
|---|
| 1227 | unsigned int count
|
|---|
| 1228 | and the return type is 'int'. */
|
|---|
| 1229 | _GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count));
|
|---|
| 1230 | # endif
|
|---|
| 1231 | _GL_CXXALIASWARN (read);
|
|---|
| 1232 | #endif
|
|---|
| 1233 |
|
|---|
| 1234 |
|
|---|
| 1235 | #if @GNULIB_READLINK@
|
|---|
| 1236 | /* Read the contents of the symbolic link FILE and place the first BUFSIZE
|
|---|
| 1237 | bytes of it into BUF. Return the number of bytes placed into BUF if
|
|---|
| 1238 | successful, otherwise -1 and errno set.
|
|---|
| 1239 | See the POSIX:2008 specification
|
|---|
| 1240 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */
|
|---|
| 1241 | # if @REPLACE_READLINK@
|
|---|
| 1242 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1243 | # define readlink rpl_readlink
|
|---|
| 1244 | # endif
|
|---|
| 1245 | _GL_FUNCDECL_RPL (readlink, ssize_t,
|
|---|
| 1246 | (const char *file, char *buf, size_t bufsize)
|
|---|
| 1247 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 1248 | _GL_CXXALIAS_RPL (readlink, ssize_t,
|
|---|
| 1249 | (const char *file, char *buf, size_t bufsize));
|
|---|
| 1250 | # else
|
|---|
| 1251 | # if !@HAVE_READLINK@
|
|---|
| 1252 | _GL_FUNCDECL_SYS (readlink, ssize_t,
|
|---|
| 1253 | (const char *file, char *buf, size_t bufsize)
|
|---|
| 1254 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 1255 | # endif
|
|---|
| 1256 | _GL_CXXALIAS_SYS (readlink, ssize_t,
|
|---|
| 1257 | (const char *file, char *buf, size_t bufsize));
|
|---|
| 1258 | # endif
|
|---|
| 1259 | _GL_CXXALIASWARN (readlink);
|
|---|
| 1260 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1261 | # undef readlink
|
|---|
| 1262 | # if HAVE_RAW_DECL_READLINK
|
|---|
| 1263 | _GL_WARN_ON_USE (readlink, "readlink is unportable - "
|
|---|
| 1264 | "use gnulib module readlink for portability");
|
|---|
| 1265 | # endif
|
|---|
| 1266 | #endif
|
|---|
| 1267 |
|
|---|
| 1268 |
|
|---|
| 1269 | #if @GNULIB_READLINKAT@
|
|---|
| 1270 | # if !@HAVE_READLINKAT@
|
|---|
| 1271 | _GL_FUNCDECL_SYS (readlinkat, ssize_t,
|
|---|
| 1272 | (int fd, char const *file, char *buf, size_t len)
|
|---|
| 1273 | _GL_ARG_NONNULL ((2, 3)));
|
|---|
| 1274 | # endif
|
|---|
| 1275 | _GL_CXXALIAS_SYS (readlinkat, ssize_t,
|
|---|
| 1276 | (int fd, char const *file, char *buf, size_t len));
|
|---|
| 1277 | _GL_CXXALIASWARN (readlinkat);
|
|---|
| 1278 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1279 | # undef readlinkat
|
|---|
| 1280 | # if HAVE_RAW_DECL_READLINKAT
|
|---|
| 1281 | _GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - "
|
|---|
| 1282 | "use gnulib module readlinkat for portability");
|
|---|
| 1283 | # endif
|
|---|
| 1284 | #endif
|
|---|
| 1285 |
|
|---|
| 1286 |
|
|---|
| 1287 | #if @GNULIB_RMDIR@
|
|---|
| 1288 | /* Remove the directory DIR. */
|
|---|
| 1289 | # if @REPLACE_RMDIR@
|
|---|
| 1290 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1291 | # define rmdir rpl_rmdir
|
|---|
| 1292 | # endif
|
|---|
| 1293 | _GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1)));
|
|---|
| 1294 | _GL_CXXALIAS_RPL (rmdir, int, (char const *name));
|
|---|
| 1295 | # else
|
|---|
| 1296 | _GL_CXXALIAS_SYS (rmdir, int, (char const *name));
|
|---|
| 1297 | # endif
|
|---|
| 1298 | _GL_CXXALIASWARN (rmdir);
|
|---|
| 1299 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1300 | # undef rmdir
|
|---|
| 1301 | # if HAVE_RAW_DECL_RMDIR
|
|---|
| 1302 | _GL_WARN_ON_USE (rmdir, "rmdir is unportable - "
|
|---|
| 1303 | "use gnulib module rmdir for portability");
|
|---|
| 1304 | # endif
|
|---|
| 1305 | #endif
|
|---|
| 1306 |
|
|---|
| 1307 |
|
|---|
| 1308 | #if @GNULIB_SETHOSTNAME@
|
|---|
| 1309 | /* Set the host name of the machine.
|
|---|
| 1310 | The host name may or may not be fully qualified.
|
|---|
| 1311 |
|
|---|
| 1312 | Put LEN bytes of NAME into the host name.
|
|---|
| 1313 | Return 0 if successful, otherwise, set errno and return -1.
|
|---|
| 1314 |
|
|---|
| 1315 | Platforms with no ability to set the hostname return -1 and set
|
|---|
| 1316 | errno = ENOSYS. */
|
|---|
| 1317 | # if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@
|
|---|
| 1318 | _GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len)
|
|---|
| 1319 | _GL_ARG_NONNULL ((1)));
|
|---|
| 1320 | # endif
|
|---|
| 1321 | /* Need to cast, because on Solaris 11 2011-10, MacOS X 10.5, IRIX 6.5
|
|---|
| 1322 | and FreeBSD 6.4 the second parameter is int. On Solaris 11
|
|---|
| 1323 | 2011-10, the first parameter is not const. */
|
|---|
| 1324 | _GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len));
|
|---|
| 1325 | _GL_CXXALIASWARN (sethostname);
|
|---|
| 1326 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1327 | # undef sethostname
|
|---|
| 1328 | # if HAVE_RAW_DECL_SETHOSTNAME
|
|---|
| 1329 | _GL_WARN_ON_USE (sethostname, "sethostname is unportable - "
|
|---|
| 1330 | "use gnulib module sethostname for portability");
|
|---|
| 1331 | # endif
|
|---|
| 1332 | #endif
|
|---|
| 1333 |
|
|---|
| 1334 |
|
|---|
| 1335 | #if @GNULIB_SLEEP@
|
|---|
| 1336 | /* Pause the execution of the current thread for N seconds.
|
|---|
| 1337 | Returns the number of seconds left to sleep.
|
|---|
| 1338 | See the POSIX:2008 specification
|
|---|
| 1339 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */
|
|---|
| 1340 | # if @REPLACE_SLEEP@
|
|---|
| 1341 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1342 | # undef sleep
|
|---|
| 1343 | # define sleep rpl_sleep
|
|---|
| 1344 | # endif
|
|---|
| 1345 | _GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n));
|
|---|
| 1346 | _GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n));
|
|---|
| 1347 | # else
|
|---|
| 1348 | # if !@HAVE_SLEEP@
|
|---|
| 1349 | _GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n));
|
|---|
| 1350 | # endif
|
|---|
| 1351 | _GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n));
|
|---|
| 1352 | # endif
|
|---|
| 1353 | _GL_CXXALIASWARN (sleep);
|
|---|
| 1354 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1355 | # undef sleep
|
|---|
| 1356 | # if HAVE_RAW_DECL_SLEEP
|
|---|
| 1357 | _GL_WARN_ON_USE (sleep, "sleep is unportable - "
|
|---|
| 1358 | "use gnulib module sleep for portability");
|
|---|
| 1359 | # endif
|
|---|
| 1360 | #endif
|
|---|
| 1361 |
|
|---|
| 1362 |
|
|---|
| 1363 | #if @GNULIB_SYMLINK@
|
|---|
| 1364 | # if @REPLACE_SYMLINK@
|
|---|
| 1365 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1366 | # undef symlink
|
|---|
| 1367 | # define symlink rpl_symlink
|
|---|
| 1368 | # endif
|
|---|
| 1369 | _GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file)
|
|---|
| 1370 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 1371 | _GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file));
|
|---|
| 1372 | # else
|
|---|
| 1373 | # if !@HAVE_SYMLINK@
|
|---|
| 1374 | _GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file)
|
|---|
| 1375 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 1376 | # endif
|
|---|
| 1377 | _GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file));
|
|---|
| 1378 | # endif
|
|---|
| 1379 | _GL_CXXALIASWARN (symlink);
|
|---|
| 1380 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1381 | # undef symlink
|
|---|
| 1382 | # if HAVE_RAW_DECL_SYMLINK
|
|---|
| 1383 | _GL_WARN_ON_USE (symlink, "symlink is not portable - "
|
|---|
| 1384 | "use gnulib module symlink for portability");
|
|---|
| 1385 | # endif
|
|---|
| 1386 | #endif
|
|---|
| 1387 |
|
|---|
| 1388 |
|
|---|
| 1389 | #if @GNULIB_SYMLINKAT@
|
|---|
| 1390 | # if !@HAVE_SYMLINKAT@
|
|---|
| 1391 | _GL_FUNCDECL_SYS (symlinkat, int,
|
|---|
| 1392 | (char const *contents, int fd, char const *file)
|
|---|
| 1393 | _GL_ARG_NONNULL ((1, 3)));
|
|---|
| 1394 | # endif
|
|---|
| 1395 | _GL_CXXALIAS_SYS (symlinkat, int,
|
|---|
| 1396 | (char const *contents, int fd, char const *file));
|
|---|
| 1397 | _GL_CXXALIASWARN (symlinkat);
|
|---|
| 1398 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1399 | # undef symlinkat
|
|---|
| 1400 | # if HAVE_RAW_DECL_SYMLINKAT
|
|---|
| 1401 | _GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - "
|
|---|
| 1402 | "use gnulib module symlinkat for portability");
|
|---|
| 1403 | # endif
|
|---|
| 1404 | #endif
|
|---|
| 1405 |
|
|---|
| 1406 |
|
|---|
| 1407 | #if @GNULIB_TTYNAME_R@
|
|---|
| 1408 | /* Store at most BUFLEN characters of the pathname of the terminal FD is
|
|---|
| 1409 | open on in BUF. Return 0 on success, otherwise an error number. */
|
|---|
| 1410 | # if @REPLACE_TTYNAME_R@
|
|---|
| 1411 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1412 | # undef ttyname_r
|
|---|
| 1413 | # define ttyname_r rpl_ttyname_r
|
|---|
| 1414 | # endif
|
|---|
| 1415 | _GL_FUNCDECL_RPL (ttyname_r, int,
|
|---|
| 1416 | (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
|
|---|
| 1417 | _GL_CXXALIAS_RPL (ttyname_r, int,
|
|---|
| 1418 | (int fd, char *buf, size_t buflen));
|
|---|
| 1419 | # else
|
|---|
| 1420 | # if !@HAVE_DECL_TTYNAME_R@
|
|---|
| 1421 | _GL_FUNCDECL_SYS (ttyname_r, int,
|
|---|
| 1422 | (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
|
|---|
| 1423 | # endif
|
|---|
| 1424 | _GL_CXXALIAS_SYS (ttyname_r, int,
|
|---|
| 1425 | (int fd, char *buf, size_t buflen));
|
|---|
| 1426 | # endif
|
|---|
| 1427 | _GL_CXXALIASWARN (ttyname_r);
|
|---|
| 1428 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1429 | # undef ttyname_r
|
|---|
| 1430 | # if HAVE_RAW_DECL_TTYNAME_R
|
|---|
| 1431 | _GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - "
|
|---|
| 1432 | "use gnulib module ttyname_r for portability");
|
|---|
| 1433 | # endif
|
|---|
| 1434 | #endif
|
|---|
| 1435 |
|
|---|
| 1436 |
|
|---|
| 1437 | #if @GNULIB_UNLINK@
|
|---|
| 1438 | # if @REPLACE_UNLINK@
|
|---|
| 1439 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1440 | # undef unlink
|
|---|
| 1441 | # define unlink rpl_unlink
|
|---|
| 1442 | # endif
|
|---|
| 1443 | _GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1)));
|
|---|
| 1444 | _GL_CXXALIAS_RPL (unlink, int, (char const *file));
|
|---|
| 1445 | # else
|
|---|
| 1446 | _GL_CXXALIAS_SYS (unlink, int, (char const *file));
|
|---|
| 1447 | # endif
|
|---|
| 1448 | _GL_CXXALIASWARN (unlink);
|
|---|
| 1449 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1450 | # undef unlink
|
|---|
| 1451 | # if HAVE_RAW_DECL_UNLINK
|
|---|
| 1452 | _GL_WARN_ON_USE (unlink, "unlink is not portable - "
|
|---|
| 1453 | "use gnulib module unlink for portability");
|
|---|
| 1454 | # endif
|
|---|
| 1455 | #endif
|
|---|
| 1456 |
|
|---|
| 1457 |
|
|---|
| 1458 | #if @GNULIB_UNLINKAT@
|
|---|
| 1459 | # if @REPLACE_UNLINKAT@
|
|---|
| 1460 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1461 | # undef unlinkat
|
|---|
| 1462 | # define unlinkat rpl_unlinkat
|
|---|
| 1463 | # endif
|
|---|
| 1464 | _GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag)
|
|---|
| 1465 | _GL_ARG_NONNULL ((2)));
|
|---|
| 1466 | _GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag));
|
|---|
| 1467 | # else
|
|---|
| 1468 | # if !@HAVE_UNLINKAT@
|
|---|
| 1469 | _GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag)
|
|---|
| 1470 | _GL_ARG_NONNULL ((2)));
|
|---|
| 1471 | # endif
|
|---|
| 1472 | _GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag));
|
|---|
| 1473 | # endif
|
|---|
| 1474 | _GL_CXXALIASWARN (unlinkat);
|
|---|
| 1475 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1476 | # undef unlinkat
|
|---|
| 1477 | # if HAVE_RAW_DECL_UNLINKAT
|
|---|
| 1478 | _GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - "
|
|---|
| 1479 | "use gnulib module openat for portability");
|
|---|
| 1480 | # endif
|
|---|
| 1481 | #endif
|
|---|
| 1482 |
|
|---|
| 1483 |
|
|---|
| 1484 | #if @GNULIB_USLEEP@
|
|---|
| 1485 | /* Pause the execution of the current thread for N microseconds.
|
|---|
| 1486 | Returns 0 on completion, or -1 on range error.
|
|---|
| 1487 | See the POSIX:2001 specification
|
|---|
| 1488 | <http://www.opengroup.org/susv3xsh/usleep.html>. */
|
|---|
| 1489 | # if @REPLACE_USLEEP@
|
|---|
| 1490 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1491 | # undef usleep
|
|---|
| 1492 | # define usleep rpl_usleep
|
|---|
| 1493 | # endif
|
|---|
| 1494 | _GL_FUNCDECL_RPL (usleep, int, (useconds_t n));
|
|---|
| 1495 | _GL_CXXALIAS_RPL (usleep, int, (useconds_t n));
|
|---|
| 1496 | # else
|
|---|
| 1497 | # if !@HAVE_USLEEP@
|
|---|
| 1498 | _GL_FUNCDECL_SYS (usleep, int, (useconds_t n));
|
|---|
| 1499 | # endif
|
|---|
| 1500 | _GL_CXXALIAS_SYS (usleep, int, (useconds_t n));
|
|---|
| 1501 | # endif
|
|---|
| 1502 | _GL_CXXALIASWARN (usleep);
|
|---|
| 1503 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1504 | # undef usleep
|
|---|
| 1505 | # if HAVE_RAW_DECL_USLEEP
|
|---|
| 1506 | _GL_WARN_ON_USE (usleep, "usleep is unportable - "
|
|---|
| 1507 | "use gnulib module usleep for portability");
|
|---|
| 1508 | # endif
|
|---|
| 1509 | #endif
|
|---|
| 1510 |
|
|---|
| 1511 |
|
|---|
| 1512 | #if @GNULIB_WRITE@
|
|---|
| 1513 | /* Write up to COUNT bytes starting at BUF to file descriptor FD.
|
|---|
| 1514 | See the POSIX:2008 specification
|
|---|
| 1515 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */
|
|---|
| 1516 | # if @REPLACE_WRITE@
|
|---|
| 1517 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 1518 | # undef write
|
|---|
| 1519 | # define write rpl_write
|
|---|
| 1520 | # endif
|
|---|
| 1521 | _GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count)
|
|---|
| 1522 | _GL_ARG_NONNULL ((2)));
|
|---|
| 1523 | _GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count));
|
|---|
| 1524 | # else
|
|---|
| 1525 | /* Need to cast, because on mingw, the third parameter is
|
|---|
| 1526 | unsigned int count
|
|---|
| 1527 | and the return type is 'int'. */
|
|---|
| 1528 | _GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count));
|
|---|
| 1529 | # endif
|
|---|
| 1530 | _GL_CXXALIASWARN (write);
|
|---|
| 1531 | #endif
|
|---|
| 1532 |
|
|---|
| 1533 |
|
|---|
| 1534 | #endif /* _@GUARD_PREFIX@_UNISTD_H */
|
|---|
| 1535 | #endif /* _@GUARD_PREFIX@_UNISTD_H */
|
|---|