1/* Copyright (C) 1991-2020 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. */
27void
28psignal (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}
53