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/* Substitute for <sys/random.h>.
Copyright (C) 2020 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <https://www.gnu.org/licenses/>. */
# if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
# endif
@PRAGMA_COLUMNS@
#ifndef _@GUARD_PREFIX@_SYS_RANDOM_H
#if @HAVE_SYS_RANDOM_H@
/* On Mac OS X 10.5, <sys/random.h> assumes prior inclusion of <sys/types.h>.
On Max OS X 10.13, <sys/random.h> assumes prior inclusion of a file that
includes <Availability.h>, such as <stdlib.h> or <unistd.h>. */
# if defined __APPLE__ && defined __MACH__ /* Mac OS X */
# include <sys/types.h>
# include <stdlib.h>
# endif
/* The include_next requires a split double-inclusion guard. */
# @INCLUDE_NEXT@ @NEXT_SYS_RANDOM_H@
#endif
#ifndef _@GUARD_PREFIX@_SYS_RANDOM_H
#define _@GUARD_PREFIX@_SYS_RANDOM_H
#include <sys/types.h>
/* Define the GRND_* constants. */
#ifndef GRND_NONBLOCK
# define GRND_NONBLOCK 1
# define GRND_RANDOM 2
#endif
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
/* The definition of _GL_ARG_NONNULL is copied here. */
/* The definition of _GL_WARN_ON_USE is copied here. */
/* Declare overridden functions. */
#if @GNULIB_GETRANDOM@
/* Fill a buffer with random bytes. */
# if @REPLACE_GETRANDOM@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef getrandom
# define getrandom rpl_getrandom
# endif
_GL_FUNCDECL_RPL (getrandom, ssize_t,
(void *buffer, size_t length, unsigned int flags)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (getrandom, ssize_t,
(void *buffer, size_t length, unsigned int flags));
# else
# if !@HAVE_GETRANDOM@
_GL_FUNCDECL_SYS (getrandom, ssize_t,
(void *buffer, size_t length, unsigned int flags)
_GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (getrandom, ssize_t,
(void *buffer, size_t length, unsigned int flags));
# endif
_GL_CXXALIASWARN (getrandom);
#elif defined GNULIB_POSIXCHECK
# undef getrandom
# if HAVE_RAW_DECL_GETRANDOM
_GL_WARN_ON_USE (getrandom, "getrandom is unportable - "
"use gnulib module getrandom for portability");
# endif
#endif
#endif /* _@GUARD_PREFIX@_SYS_RANDOM_H */
#endif /* _@GUARD_PREFIX@_SYS_RANDOM_H */
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