1 /* 2 * Copyright (c) 1988, 1993 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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)strerror.c 8.1 (Berkeley) 6/4/93 30 * $FreeBSD: src/lib/libc/string/strsignal.c,v 1.8 2007/01/09 00:28:12 imp Exp $ 31 * $DragonFly: src/lib/libc/string/strsignal.c,v 1.4 2005/09/18 16:32:34 asmodai Exp $ 32 */ 33 34 #if defined(NLS) 35 #include <nl_types.h> 36 #endif 37 38 #include <limits.h> 39 #include <errno.h> 40 #include <string.h> 41 #include <signal.h> 42 43 #define UPREFIX "Unknown signal" 44 45 /* XXX: negative 'num' ? (REGR) */ 46 char * 47 strsignal(int num) 48 { 49 static char ebuf[NL_TEXTMAX]; 50 char tmp[20]; 51 size_t n; 52 int signum; 53 char *t, *p; 54 55 #if defined(NLS) 56 int saved_errno = errno; 57 nl_catd catd; 58 catd = catopen("libc", NL_CAT_LOCALE); 59 #endif 60 61 if (num > 0 && num < sys_nsig) { 62 n = strlcpy(ebuf, 63 #if defined(NLS) 64 catgets(catd, 2, num, sys_siglist[num]), 65 #else 66 sys_siglist[num], 67 #endif 68 sizeof(ebuf)); 69 } else { 70 n = strlcpy(ebuf, 71 #if defined(NLS) 72 catgets(catd, 2, 0xffff, UPREFIX), 73 #else 74 UPREFIX, 75 #endif 76 sizeof(ebuf)); 77 } 78 79 signum = num; 80 if (num < 0) 81 signum = -signum; 82 83 t = tmp; 84 do { 85 *t++ = "0123456789"[signum % 10]; 86 } while (signum /= 10); 87 if (num < 0) 88 *t++ = '-'; 89 90 p = (ebuf + n); 91 *p++ = ':'; 92 *p++ = ' '; 93 94 for (;;) { 95 *p++ = *--t; 96 if (t <= tmp) 97 break; 98 } 99 *p = '\0'; 100 101 #if defined(NLS) 102 catclose(catd); 103 errno = saved_errno; 104 #endif 105 return (ebuf); 106 } 107