1  /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       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 GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <stdio.h>
      19  #include <signal.h>
      20  #include <stdlib.h>
      21  #include <libintl.h>
      22  #include <wchar.h>
      23  
      24  /* Print out on stderr a line consisting of the test in S, a colon, a space,
      25     a message describing the meaning of the signal number SIG and a newline.
      26     If S is NULL or "", the colon and space are omitted.  */
      27  void
      28  psignal (int sig, const char *s)
      29  {
      30    const char *colon, *desc;
      31  
      32    if (s == NULL || *s == '\0')
      33      s = colon = "";
      34    else
      35      colon = ": ";
      36  
      37    if (sig >= 0 && sig < NSIG && (desc = __sys_siglist[sig]) != NULL)
      38      (void) __fxprintf (NULL, "%s%s%s\n", s, colon, _(desc));
      39    else
      40      {
      41        char *buf;
      42  
      43        if (__asprintf (&buf, _("%s%sUnknown signal %d\n"), s, colon, sig) < 0)
      44  	(void) __fxprintf (NULL, "%s%s%s\n", s, colon, _("Unknown signal"));
      45        else
      46  	{
      47  	  (void) __fxprintf (NULL, "%s", buf);
      48  
      49  	  free (buf);
      50  	}
      51      }
      52  }