xref: /netbsd-src/lib/libc/string/__strsignal.c (revision 5e4c038a45edbc7d63b7c2daa76e29f88b64a4e3)
1 /*	$NetBSD: __strsignal.c,v 1.21 2002/03/20 01:43:55 christos Exp $	*/
2 
3 /*
4  * Copyright (c) 1988 Regents of the University of California.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 #if defined(LIBC_SCCS) && !defined(lint)
38 #if 0
39 static char *sccsid = "@(#)strerror.c	5.6 (Berkeley) 5/4/91";
40 #else
41 __RCSID("$NetBSD: __strsignal.c,v 1.21 2002/03/20 01:43:55 christos Exp $");
42 #endif
43 #endif /* LIBC_SCCS and not lint */
44 
45 #include "namespace.h"
46 #ifdef NLS
47 #include <limits.h>
48 #include <nl_types.h>
49 #endif
50 
51 #include <assert.h>
52 #include <stdio.h>
53 #include <string.h>
54 #include "extern.h"
55 #include <signal.h>
56 #ifndef SIGRTMIN	/* XXX: Until we remove the #ifdef _KERNEL */
57 #define SIGRTMIN	33
58 #define SIGRTMAX	63
59 #endif
60 
61 /* ARGSUSED */
62 const char *
63 __strsignal(num, buf, buflen)
64 	int num;
65 	char *buf;
66 	size_t buflen;
67 {
68 #define	UPREFIX	"Unknown signal: %u"
69 #define RPREFIX "Real time signal %u"
70 	unsigned int signum;
71 
72 #ifdef NLS
73 	nl_catd catd ;
74 	catd = catopen("libc", NL_CAT_LOCALE);
75 #endif
76 
77 	_DIAGASSERT(buf != NULL);
78 
79 	signum = num;				/* convert to unsigned */
80 	if (signum < sys_nsig) {
81 #ifdef NLS
82 		(void)strncpy(buf, catgets(catd, 2, (int)signum,
83 		    sys_siglist[signum]), NL_TEXTMAX);
84 		buf[NL_TEXTMAX - 1] = '\0';
85 #else
86 		return((char *)sys_siglist[signum]);
87 #endif
88 	} else if (signum >= SIGRTMIN && signum <= SIGRTMAX) {
89 #ifdef NLS
90 		(void)snprintf(buf, NL_TEXTMAX,
91 	            catgets(catd, 2, SIGRTMIN, RPREFIX), signum);
92 #else
93 		(void)snprintf(buf, buflen, RPREFIX, signum);
94 #endif
95 	} else {
96 #ifdef NLS
97 		(void)snprintf(buf, NL_TEXTMAX,
98 	            catgets(catd, 1, 0xffff, UPREFIX), signum);
99 #else
100 		(void)snprintf(buf, buflen, UPREFIX, signum);
101 #endif
102 	}
103 
104 #ifdef NLS
105 	catclose(catd);
106 #endif
107 
108 	return buf;
109 }
110