| 1 | /* Like <fcntl.h>, but with non-working flags defined to 0.
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| 2 |
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| 3 | Copyright (C) 2006-2012 Free Software Foundation, Inc.
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| 4 |
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| 5 | This program is free software: you can redistribute it and/or modify
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| 6 | it under the terms of the GNU General Public License as published by
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| 7 | the Free Software Foundation; either version 3 of the License, or
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| 8 | (at your option) any later version.
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| 9 |
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| 10 | This program is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU General Public License
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| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */
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| 17 |
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| 18 | /* written by Paul Eggert */
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| 19 |
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| 20 | #if __GNUC__ >= 3
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| 21 | @PRAGMA_SYSTEM_HEADER@
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| 22 | #endif
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| 23 | @PRAGMA_COLUMNS@
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| 24 |
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| 25 | #if defined __need_system_fcntl_h
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| 26 | /* Special invocation convention. */
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| 27 |
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| 28 | /* Needed before <sys/stat.h>.
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| 29 | May also define off_t to a 64-bit type on native Windows. */
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| 30 | #include <sys/types.h>
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| 31 | /* On some systems other than glibc, <sys/stat.h> is a prerequisite of
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| 32 | <fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
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| 33 | But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
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| 34 | extern "C" { ... } block, which leads to errors in C++ mode with the
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| 35 | overridden <sys/stat.h> from gnulib. These errors are known to be gone
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| 36 | with g++ version >= 4.3. */
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| 37 | #if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
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| 38 | # include <sys/stat.h>
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| 39 | #endif
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| 40 | #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
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| 41 |
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| 42 | #else
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| 43 | /* Normal invocation convention. */
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| 44 |
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| 45 | #ifndef _@GUARD_PREFIX@_FCNTL_H
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| 46 |
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| 47 | /* Needed before <sys/stat.h>.
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| 48 | May also define off_t to a 64-bit type on native Windows. */
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| 49 | #include <sys/types.h>
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| 50 | /* On some systems other than glibc, <sys/stat.h> is a prerequisite of
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| 51 | <fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
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| 52 | But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
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| 53 | extern "C" { ... } block, which leads to errors in C++ mode with the
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| 54 | overridden <sys/stat.h> from gnulib. These errors are known to be gone
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| 55 | with g++ version >= 4.3. */
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| 56 | #if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
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| 57 | # include <sys/stat.h>
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| 58 | #endif
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| 59 | /* The include_next requires a split double-inclusion guard. */
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| 60 | #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
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| 61 |
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| 62 | #ifndef _@GUARD_PREFIX@_FCNTL_H
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| 63 | #define _@GUARD_PREFIX@_FCNTL_H
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| 64 |
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| 65 | #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
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| 66 | # include <unistd.h>
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| 67 | #endif
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| 68 |
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| 69 | /* Native Windows platforms declare open(), creat() in <io.h>. */
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| 70 | #if (@GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \
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| 71 | && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
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| 72 | # include <io.h>
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| 73 | #endif
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| 74 |
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| 75 |
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| 76 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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| 77 |
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| 78 | /* The definition of _GL_ARG_NONNULL is copied here. */
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| 79 |
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| 80 | /* The definition of _GL_WARN_ON_USE is copied here. */
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| 81 |
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| 82 |
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| 83 | /* Declare overridden functions. */
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| 84 |
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| 85 | #if @GNULIB_FCNTL@
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| 86 | # if @REPLACE_FCNTL@
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| 87 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 88 | # undef fcntl
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| 89 | # define fcntl rpl_fcntl
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| 90 | # endif
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| 91 | _GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
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| 92 | _GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
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| 93 | # else
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| 94 | # if !@HAVE_FCNTL@
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| 95 | _GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
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| 96 | # endif
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| 97 | _GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
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| 98 | # endif
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| 99 | _GL_CXXALIASWARN (fcntl);
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| 100 | #elif defined GNULIB_POSIXCHECK
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| 101 | # undef fcntl
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| 102 | # if HAVE_RAW_DECL_FCNTL
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| 103 | _GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
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| 104 | "use gnulib module fcntl for portability");
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| 105 | # endif
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| 106 | #endif
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| 107 |
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| 108 | #if @GNULIB_OPEN@
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| 109 | # if @REPLACE_OPEN@
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| 110 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 111 | # undef open
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| 112 | # define open rpl_open
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| 113 | # endif
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| 114 | _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
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| 115 | _GL_ARG_NONNULL ((1)));
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| 116 | _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
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| 117 | # else
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| 118 | _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
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| 119 | # endif
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| 120 | /* On HP-UX 11, in C++ mode, open() is defined as an inline function with a
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| 121 | default argument. _GL_CXXALIASWARN does not work in this case. */
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| 122 | # if !defined __hpux
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| 123 | _GL_CXXALIASWARN (open);
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| 124 | # endif
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| 125 | #elif defined GNULIB_POSIXCHECK
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| 126 | # undef open
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| 127 | /* Assume open is always declared. */
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| 128 | _GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
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| 129 | "use gnulib module open for portability");
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| 130 | #endif
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| 131 |
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| 132 | #if @GNULIB_OPENAT@
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| 133 | # if @REPLACE_OPENAT@
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| 134 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 135 | # undef openat
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| 136 | # define openat rpl_openat
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| 137 | # endif
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| 138 | _GL_FUNCDECL_RPL (openat, int,
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| 139 | (int fd, char const *file, int flags, /* mode_t mode */ ...)
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| 140 | _GL_ARG_NONNULL ((2)));
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| 141 | _GL_CXXALIAS_RPL (openat, int,
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| 142 | (int fd, char const *file, int flags, /* mode_t mode */ ...));
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| 143 | # else
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| 144 | # if !@HAVE_OPENAT@
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| 145 | _GL_FUNCDECL_SYS (openat, int,
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| 146 | (int fd, char const *file, int flags, /* mode_t mode */ ...)
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| 147 | _GL_ARG_NONNULL ((2)));
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| 148 | # endif
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| 149 | _GL_CXXALIAS_SYS (openat, int,
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| 150 | (int fd, char const *file, int flags, /* mode_t mode */ ...));
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| 151 | # endif
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| 152 | _GL_CXXALIASWARN (openat);
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| 153 | #elif defined GNULIB_POSIXCHECK
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| 154 | # undef openat
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| 155 | # if HAVE_RAW_DECL_OPENAT
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| 156 | _GL_WARN_ON_USE (openat, "openat is not portable - "
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| 157 | "use gnulib module openat for portability");
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| 158 | # endif
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| 159 | #endif
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| 160 |
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| 161 |
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| 162 | /* Fix up the FD_* macros, only known to be missing on mingw. */
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| 163 |
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| 164 | #ifndef FD_CLOEXEC
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| 165 | # define FD_CLOEXEC 1
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| 166 | #endif
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| 167 |
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| 168 | /* Fix up the supported F_* macros. Intentionally leave other F_*
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| 169 | macros undefined. Only known to be missing on mingw. */
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| 170 |
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| 171 | #ifndef F_DUPFD_CLOEXEC
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| 172 | # define F_DUPFD_CLOEXEC 0x40000000
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| 173 | /* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
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| 174 | # define GNULIB_defined_F_DUPFD_CLOEXEC 1
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| 175 | #else
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| 176 | # define GNULIB_defined_F_DUPFD_CLOEXEC 0
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| 177 | #endif
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| 178 |
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| 179 | #ifndef F_DUPFD
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| 180 | # define F_DUPFD 1
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| 181 | #endif
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| 182 |
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| 183 | #ifndef F_GETFD
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| 184 | # define F_GETFD 2
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| 185 | #endif
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| 186 |
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| 187 | /* Fix up the O_* macros. */
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| 188 |
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| 189 | #if !defined O_DIRECT && defined O_DIRECTIO
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| 190 | /* Tru64 spells it 'O_DIRECTIO'. */
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| 191 | # define O_DIRECT O_DIRECTIO
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| 192 | #endif
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| 193 |
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| 194 | #if !defined O_CLOEXEC && defined O_NOINHERIT
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| 195 | /* Mingw spells it 'O_NOINHERIT'. */
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| 196 | # define O_CLOEXEC O_NOINHERIT
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| 197 | #endif
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| 198 |
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| 199 | #ifndef O_CLOEXEC
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| 200 | # define O_CLOEXEC 0
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| 201 | #endif
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| 202 |
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| 203 | #ifndef O_DIRECT
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| 204 | # define O_DIRECT 0
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| 205 | #endif
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| 206 |
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| 207 | #ifndef O_DIRECTORY
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| 208 | # define O_DIRECTORY 0
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| 209 | #endif
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| 210 |
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| 211 | #ifndef O_DSYNC
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| 212 | # define O_DSYNC 0
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| 213 | #endif
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| 214 |
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| 215 | #ifndef O_EXEC
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| 216 | # define O_EXEC O_RDONLY /* This is often close enough in older systems. */
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| 217 | #endif
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| 218 |
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| 219 | #ifndef O_NDELAY
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| 220 | # define O_NDELAY 0
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| 221 | #endif
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| 222 |
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| 223 | #ifndef O_NOATIME
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| 224 | # define O_NOATIME 0
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| 225 | #endif
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| 226 |
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| 227 | #ifndef O_NONBLOCK
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| 228 | # define O_NONBLOCK O_NDELAY
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| 229 | #endif
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| 230 |
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| 231 | /* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero
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| 232 | value of O_NONBLOCK. Otherwise, O_NONBLOCK is defined (above) to O_NDELAY
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| 233 | or to 0 as fallback. */
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| 234 | #if @GNULIB_NONBLOCKING@
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| 235 | # if O_NONBLOCK
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| 236 | # define GNULIB_defined_O_NONBLOCK 0
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| 237 | # else
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| 238 | # define GNULIB_defined_O_NONBLOCK 1
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| 239 | # undef O_NONBLOCK
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| 240 | # define O_NONBLOCK 0x40000000
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| 241 | # endif
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| 242 | #endif
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| 243 |
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| 244 | #ifndef O_NOCTTY
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| 245 | # define O_NOCTTY 0
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| 246 | #endif
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| 247 |
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| 248 | #ifndef O_NOFOLLOW
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| 249 | # define O_NOFOLLOW 0
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| 250 | #endif
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| 251 |
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| 252 | #ifndef O_NOLINKS
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| 253 | # define O_NOLINKS 0
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| 254 | #endif
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| 255 |
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| 256 | #ifndef O_RSYNC
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| 257 | # define O_RSYNC 0
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| 258 | #endif
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| 259 |
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| 260 | #ifndef O_SEARCH
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| 261 | # define O_SEARCH O_RDONLY /* This is often close enough in older systems. */
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| 262 | #endif
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| 263 |
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| 264 | #ifndef O_SYNC
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| 265 | # define O_SYNC 0
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| 266 | #endif
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| 267 |
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| 268 | #ifndef O_TTY_INIT
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| 269 | # define O_TTY_INIT 0
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| 270 | #endif
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| 271 |
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| 272 | #if O_ACCMODE != (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
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| 273 | # undef O_ACCMODE
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| 274 | # define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
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| 275 | #endif
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| 276 |
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| 277 | /* For systems that distinguish between text and binary I/O.
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| 278 | O_BINARY is usually declared in fcntl.h */
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| 279 | #if !defined O_BINARY && defined _O_BINARY
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| 280 | /* For MSC-compatible compilers. */
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| 281 | # define O_BINARY _O_BINARY
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| 282 | # define O_TEXT _O_TEXT
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| 283 | #endif
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| 284 |
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| 285 | #if defined __BEOS__ || defined __HAIKU__
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| 286 | /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
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| 287 | # undef O_BINARY
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| 288 | # undef O_TEXT
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| 289 | #endif
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| 290 |
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| 291 | #ifndef O_BINARY
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| 292 | # define O_BINARY 0
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| 293 | # define O_TEXT 0
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| 294 | #endif
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| 295 |
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| 296 | /* Fix up the AT_* macros. */
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| 297 |
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| 298 | /* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
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| 299 | value exceeds INT_MAX, so its use as an int doesn't conform to the
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| 300 | C standard, and GCC and Sun C complain in some cases. If the bug
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| 301 | is present, undef AT_FDCWD here, so it can be redefined below. */
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| 302 | #if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
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| 303 | # undef AT_FDCWD
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| 304 | #endif
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| 305 |
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| 306 | /* Use the same bit pattern as Solaris 9, but with the proper
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| 307 | signedness. The bit pattern is important, in case this actually is
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| 308 | Solaris with the above workaround. */
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| 309 | #ifndef AT_FDCWD
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| 310 | # define AT_FDCWD (-3041965)
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| 311 | #endif
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| 312 |
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| 313 | /* Use the same values as Solaris 9. This shouldn't matter, but
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| 314 | there's no real reason to differ. */
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| 315 | #ifndef AT_SYMLINK_NOFOLLOW
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| 316 | # define AT_SYMLINK_NOFOLLOW 4096
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| 317 | #endif
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| 318 |
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| 319 | #ifndef AT_REMOVEDIR
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| 320 | # define AT_REMOVEDIR 1
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| 321 | #endif
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| 322 |
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| 323 | /* Solaris 9 lacks these two, so just pick unique values. */
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| 324 | #ifndef AT_SYMLINK_FOLLOW
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| 325 | # define AT_SYMLINK_FOLLOW 2
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| 326 | #endif
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| 327 |
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| 328 | #ifndef AT_EACCESS
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| 329 | # define AT_EACCESS 4
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| 330 | #endif
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| 331 |
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| 332 |
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| 333 | #endif /* _@GUARD_PREFIX@_FCNTL_H */
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| 334 | #endif /* _@GUARD_PREFIX@_FCNTL_H */
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| 335 | #endif
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