1 /* Copyright (C) 1991 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 1, or (at your option)
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with the GNU C Library; see the file COPYING. If not, write to
16 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
24 /* Defined in stdio/sys_siglist.c. */
25 extern CONST char *CONST _sys_siglist[];
28 /* Return a string describing the meaning of the signal number SIGNUM. */
30 DEFUN(strsignal, (signum), int signum)
32 if (signum < 0 || signum > NSIG)
34 static char unknown_signal[] = "Unknown signal 000000000000000000";
35 static char fmt[] = "Unknown signal%d";
36 size_t len = sprintf(unknown_signal, fmt, signum);
37 if (len < sizeof(fmt) - 2)
39 unknown_signal[len - 1] = '\0';
40 return unknown_signal;
43 return (char *) _sys_siglist[signum];