/* sig2str.h -- convert between signal names and numbers

   Copyright (C) 2002, 2005, 2009-2017 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 of the License, 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 <http://www.gnu.org/licenses/>.  */

/* Written by Paul Eggert.  */

#ifndef SIGSTR_H
# define SIGSTR_H

# include <signal.h>

/* Don't override system declarations of SIG2STR_MAX, sig2str, str2sig.  */
# ifndef SIG2STR_MAX

#  include "intprops.h"

/* Size of a buffer needed to hold a signal name like "HUP".  */
#  define SIG2STR_MAX (sizeof "SIGRTMAX" + INT_STRLEN_BOUND (int) - 1)

# ifdef __cplusplus
extern "C" {
# endif

int sig2str (int, char *);
int str2sig (char const *, int *);

# ifdef __cplusplus
}
# endif

# endif

/* An upper bound on signal numbers allowed by the system.  */

# if defined _sys_nsig
#  define SIGNUM_BOUND (_sys_nsig - 1)
# elif defined _SIG_MAXSIG
#  define SIGNUM_BOUND (_SIG_MAXSIG - 2) /* FreeBSD >= 7.  */
# elif defined NSIG
#  define SIGNUM_BOUND (NSIG - 1)
# else
#  define SIGNUM_BOUND 64
# endif
#endif
