lib/sig2str.h

   1 /* sig2str.h -- convert between signal names and numbers
   2
   3    Copyright (C) 2002, 2005, 2009-2017 Free Software Foundation, Inc.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* Written by Paul Eggert.  */
  19
  20 #include <signal.h>
  21
  22 /* Don't override system declarations of SIG2STR_MAX, sig2str, str2sig.  */
  23 #ifndef SIG2STR_MAX
  24
  25 # include "intprops.h"
  26
  27 /* Size of a buffer needed to hold a signal name like "HUP".  */
  28 # define SIG2STR_MAX (sizeof "SIGRTMAX" + INT_STRLEN_BOUND (int) - 1)
  29
  30 #ifdef __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 int sig2str (int, char *);
  35 int str2sig (char const *, int *);
  36
  37 #ifdef __cplusplus
  38 }
  39 #endif
  40
  41 #endif
  42
  43 /* An upper bound on signal numbers allowed by the system.  */
  44
  45 #if defined _sys_nsig
  46 # define SIGNUM_BOUND (_sys_nsig - 1)
  47 #elif defined _SIG_MAXSIG
  48 # define SIGNUM_BOUND (_SIG_MAXSIG - 2) /* FreeBSD >= 7.  */
  49 #elif defined NSIG
  50 # define SIGNUM_BOUND (NSIG - 1)
  51 #else
  52 # define SIGNUM_BOUND 64
  53 #endif