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224c7076
A
1/*
2 * Copyright (c) 1988, 1993
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A
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
5b2abdfb 34#if defined(LIBC_SCCS) && !defined(lint)
224c7076 35static char sccsid[] = "@(#)strerror.c 8.1 (Berkeley) 6/4/93";
5b2abdfb 36#endif /* LIBC_SCCS and not lint */
9385eb3d 37#include <sys/cdefs.h>
224c7076 38__FBSDID("$FreeBSD: src/lib/libc/string/strsignal.c,v 1.4 2002/03/21 18:44:54 obrien Exp $");
e9ce8d39 39
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40#include <stdio.h>
41#include <string.h>
42#include <signal.h>
e9ce8d39 43
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44char *
45strsignal(num)
46 int num;
e9ce8d39 47{
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48#define UPREFIX "Unknown signal: "
49 static char ebuf[40] = UPREFIX; /* 64-bit number + slop */
50 unsigned int signum;
51 char *p, *t;
52 char tmp[40];
53
54 signum = num; /* convert to unsigned */
55 if (signum < NSIG)
56 return ((char *)sys_siglist[signum]);
e9ce8d39 57
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58 /* Do this by hand, so we don't link to stdio(3). */
59 t = tmp;
60 if (num < 0)
61 signum = -signum;
62 do {
63 *t++ = "0123456789"[signum % 10];
64 } while (signum /= 10);
65 if (num < 0)
66 *t++ = '-';
67 for (p = ebuf + sizeof(UPREFIX) - 1;;) {
68 *p++ = *--t;
69 if (t <= tmp)
70 break;
71 }
72 *p = '\0';
73 return (ebuf);
e9ce8d39 74}