xref: /haiku/src/system/libroot/posix/glibc/stdio-common/psignal.c (revision 7749d0bb0c358a3279b1b9cc76d8376e900130a5)
1 /* Copyright (C) 1991,1992,1995-1997,2001,2002 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, write to the Free
16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17    02111-1307 USA.  */
18 
19 #include <stdio.h>
20 #include <signal.h>
21 #include <stdlib.h>
22 #include <libintl.h>
23 #ifdef USE_IN_LIBIO
24 # include <wchar.h>
25 #endif
26 
27 
28 #ifndef	HAVE_GNU_LD
29 #define	_sys_siglist	sys_siglist
30 #endif
31 
32 /* Defined in sys_siglist.c.  */
33 extern const char *const _sys_siglist[];
34 extern const char *const _sys_siglist_internal[] attribute_hidden;
35 
36 
37 /* Print out on stderr a line consisting of the test in S, a colon, a space,
38    a message describing the meaning of the signal number SIG and a newline.
39    If S is NULL or "", the colon and space are omitted.  */
40 void
41 psignal (int sig, const char *s)
42 {
43   const char *colon, *desc;
44 
45   if (s == NULL || s == '\0')
46     s = colon = "";
47   else
48     colon = ": ";
49 
50   if (sig >= 0 && sig < NSIG && (desc = INTUSE(_sys_siglist)[sig]) != NULL)
51     {
52 #ifdef USE_IN_LIBIO
53       if (_IO_fwide (stderr, 0) > 0)
54 	(void) __fwprintf (stderr, L"%s%s%s\n", s, colon, _(desc));
55       else
56 #endif
57 	(void) fprintf (stderr, "%s%s%s\n", s, colon, _(desc));
58     }
59   else
60     {
61       char *buf;
62 
63       (void) __asprintf (&buf, _("%s%sUnknown signal %d\n"), s, colon, sig);
64 
65 #ifdef USE_IN_LIBIO
66       if (_IO_fwide (stderr, 0) > 0)
67 	(void) __fwprintf (stderr, L"%s",  buf);
68       else
69 #endif
70 	(void) fputs (buf, stderr);
71 
72       free (buf);
73     }
74 }
75