1  /* Return string describing signal.
       2     Copyright (C) 2020-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library 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 GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <string.h>
      20  #include <signal.h>
      21  #include <array_length.h>
      22  
      23  const char *
      24  __sigdescr_np (int signum)
      25  {
      26    const char *descr = NULL;
      27  
      28    if (signum >= 0 && signum <= NSIG && signum < array_length (__sys_siglist))
      29      descr = __sys_siglist[signum];
      30  
      31    return descr;
      32  }
      33  libc_hidden_def (__sigdescr_np)
      34  weak_alias (__sigdescr_np, sigdescr_np)