aarch64/usr/aarch64-cros-linux-gnu/usr/include/bits/syslog.h

/* Checking macros for syslog functions.
   Copyright (C) 2005-2020 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
   <https://www.gnu.org/licenses/>.  */

#ifndef _SYS_SYSLOG_H
# error "Never include <bits/syslog.h> directly; use <sys/syslog.h> instead."
#endif

#ifdef __USE_MISC
extern void __vsyslog_chk (int __pri, int __flag, const char *__fmt,
			   __gnuc_va_list __ap)
     __attribute__ ((__format__ (__printf__, 3, 0)));

__fortify_potential_overload __attribute__ ((__format__ (__printf__, 2, 0))) void
vsyslog (int __pri, const char *const __clang_pass_object_size __fmt,
	 __gnuc_va_list __ap)
{
  __vsyslog_chk (__pri,  __USE_FORTIFY_LEVEL - 1, __fmt, __ap);
}
#endif

extern void __syslog_chk (int __pri, int __flag, const char *__fmt, ...)
     __attribute__ ((__format__ (__printf__, 3, 4)));

#if defined __use_clang_fortify && __USE_MISC
/* clang doesn't support __va_arg_pack, so this is only possible if we have
   vsyslog.  */
__fortify_overload __attribute__ ((__format__ (__printf__, 2, 3))) void
syslog (int __pri, const char *const __clang_pass_object_size __fmt, ...)
{
  __gnuc_va_list __ap;
  va_start (__ap, __fmt);
  __vsyslog_chk (__pri, __USE_FORTIFY_LEVEL - 1, __fmt, __ap);
  va_end (__ap);
}
#elif defined __va_arg_pack
__fortify_function void
syslog (int __pri, const char *__fmt, ...)
{
  __syslog_chk (__pri, __USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ());
}
#elif !defined __cplusplus
# define syslog(pri, ...) \
  __syslog_chk (pri, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
#endif