--- /dev/null
+/* Checking macros for fcntl functions.
+ Copyright (C) 2007-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _FCNTL_H
+# error "Never include <bits/fcntl2.h> directly; use <fcntl.h> instead."
+#endif
+
+/* Check that calls to open and openat with O_CREAT or O_TMPFILE set have an
+ appropriate third/fourth parameter. */
+#ifndef __USE_FILE_OFFSET64
+extern int __open_2 (const char *__path, int __oflag) __nonnull ((1));
+extern int __REDIRECT (__open_alias, (const char *__path, int __oflag, ...),
+ open) __nonnull ((1));
+#else
+extern int __REDIRECT (__open_2, (const char *__path, int __oflag),
+ __open64_2) __nonnull ((1));
+extern int __REDIRECT (__open_alias, (const char *__path, int __oflag, ...),
+ open64) __nonnull ((1));
+#endif
+__errordecl (__open_too_many_args,
+ "open can be called either with 2 or 3 arguments, not more");
+__errordecl (__open_missing_mode,
+ "open with O_CREAT or O_TMPFILE in second argument needs 3 arguments");
+
+__fortify_function int
+open (const char *__path, int __oflag, ...)
+{
+ if (__va_arg_pack_len () > 1)
+ __open_too_many_args ();
+
+ if (__builtin_constant_p (__oflag))
+ {
+ if (__OPEN_NEEDS_MODE (__oflag) && __va_arg_pack_len () < 1)
+ {
+ __open_missing_mode ();
+ return __open_2 (__path, __oflag);
+ }
+ return __open_alias (__path, __oflag, __va_arg_pack ());
+ }
+
+ if (__va_arg_pack_len () < 1)
+ return __open_2 (__path, __oflag);
+
+ return __open_alias (__path, __oflag, __va_arg_pack ());
+}
+
+
+#ifdef __USE_LARGEFILE64
+extern int __open64_2 (const char *__path, int __oflag) __nonnull ((1));
+extern int __REDIRECT (__open64_alias, (const char *__path, int __oflag,
+ ...), open64) __nonnull ((1));
+__errordecl (__open64_too_many_args,
+ "open64 can be called either with 2 or 3 arguments, not more");
+__errordecl (__open64_missing_mode,
+ "open64 with O_CREAT or O_TMPFILE in second argument needs 3 arguments");
+
+__fortify_function int
+open64 (const char *__path, int __oflag, ...)
+{
+ if (__va_arg_pack_len () > 1)
+ __open64_too_many_args ();
+
+ if (__builtin_constant_p (__oflag))
+ {
+ if (__OPEN_NEEDS_MODE (__oflag) && __va_arg_pack_len () < 1)
+ {
+ __open64_missing_mode ();
+ return __open64_2 (__path, __oflag);
+ }
+ return __open64_alias (__path, __oflag, __va_arg_pack ());
+ }
+
+ if (__va_arg_pack_len () < 1)
+ return __open64_2 (__path, __oflag);
+
+ return __open64_alias (__path, __oflag, __va_arg_pack ());
+}
+#endif
+
+
+#ifdef __USE_ATFILE
+# ifndef __USE_FILE_OFFSET64
+extern int __openat_2 (int __fd, const char *__path, int __oflag)
+ __nonnull ((2));
+extern int __REDIRECT (__openat_alias, (int __fd, const char *__path,
+ int __oflag, ...), openat)
+ __nonnull ((2));
+# else
+extern int __REDIRECT (__openat_2, (int __fd, const char *__path,
+ int __oflag), __openat64_2)
+ __nonnull ((2));
+extern int __REDIRECT (__openat_alias, (int __fd, const char *__path,
+ int __oflag, ...), openat64)
+ __nonnull ((2));
+# endif
+__errordecl (__openat_too_many_args,
+ "openat can be called either with 3 or 4 arguments, not more");
+__errordecl (__openat_missing_mode,
+ "openat with O_CREAT or O_TMPFILE in third argument needs 4 arguments");
+
+__fortify_function int
+openat (int __fd, const char *__path, int __oflag, ...)
+{
+ if (__va_arg_pack_len () > 1)
+ __openat_too_many_args ();
+
+ if (__builtin_constant_p (__oflag))
+ {
+ if (__OPEN_NEEDS_MODE (__oflag) && __va_arg_pack_len () < 1)
+ {
+ __openat_missing_mode ();
+ return __openat_2 (__fd, __path, __oflag);
+ }
+ return __openat_alias (__fd, __path, __oflag, __va_arg_pack ());
+ }
+
+ if (__va_arg_pack_len () < 1)
+ return __openat_2 (__fd, __path, __oflag);
+
+ return __openat_alias (__fd, __path, __oflag, __va_arg_pack ());
+}
+
+
+# ifdef __USE_LARGEFILE64
+extern int __openat64_2 (int __fd, const char *__path, int __oflag)
+ __nonnull ((2));
+extern int __REDIRECT (__openat64_alias, (int __fd, const char *__path,
+ int __oflag, ...), openat64)
+ __nonnull ((2));
+__errordecl (__openat64_too_many_args,
+ "openat64 can be called either with 3 or 4 arguments, not more");
+__errordecl (__openat64_missing_mode,
+ "openat64 with O_CREAT or O_TMPFILE in third argument needs 4 arguments");
+
+__fortify_function int
+openat64 (int __fd, const char *__path, int __oflag, ...)
+{
+ if (__va_arg_pack_len () > 1)
+ __openat64_too_many_args ();
+
+ if (__builtin_constant_p (__oflag))
+ {
+ if (__OPEN_NEEDS_MODE (__oflag) && __va_arg_pack_len () < 1)
+ {
+ __openat64_missing_mode ();
+ return __openat64_2 (__fd, __path, __oflag);
+ }
+ return __openat64_alias (__fd, __path, __oflag, __va_arg_pack ());
+ }
+
+ if (__va_arg_pack_len () < 1)
+ return __openat64_2 (__fd, __path, __oflag);
+
+ return __openat64_alias (__fd, __path, __oflag, __va_arg_pack ());
+}
+# endif
+#endif
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