1108118Smike/*- 21573Srgrimes * Copyright (c) 1988, 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * Redistribution and use in source and binary forms, with or without 61573Srgrimes * modification, are permitted provided that the following conditions 71573Srgrimes * are met: 81573Srgrimes * 1. Redistributions of source code must retain the above copyright 91573Srgrimes * notice, this list of conditions and the following disclaimer. 101573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111573Srgrimes * notice, this list of conditions and the following disclaimer in the 121573Srgrimes * documentation and/or other materials provided with the distribution. 13251069Semaste * 3. Neither the name of the University nor the names of its contributors 141573Srgrimes * may be used to endorse or promote products derived from this software 151573Srgrimes * without specific prior written permission. 161573Srgrimes * 171573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271573Srgrimes * SUCH DAMAGE. 281573Srgrimes */ 291573Srgrimes 301573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 311573Srgrimesstatic char sccsid[] = "@(#)strerror.c 8.1 (Berkeley) 6/4/93"; 321573Srgrimes#endif /* LIBC_SCCS and not lint */ 3386170Sobrien#include <sys/cdefs.h> 3486170Sobrien__FBSDID("$FreeBSD$"); 351573Srgrimes 36142667Sphantom#if defined(NLS) 37142667Sphantom#include <nl_types.h> 38142667Sphantom#endif 39142667Sphantom 40142693Sphantom#include <limits.h> 41108044Smike#include <errno.h> 42142667Sphantom#include <string.h> 432505Sbde#include <stdio.h> 441573Srgrimes 45255108Sjilles#include "errlst.h" 46255108Sjilles 47142667Sphantom#define UPREFIX "Unknown error" 48108118Smike 49108044Smike/* 50108044Smike * Define a buffer size big enough to describe a 64-bit signed integer 51108044Smike * converted to ASCII decimal (19 bytes), with an optional leading sign 52142667Sphantom * (1 byte); finally, we get the prefix, delimiter (": ") and a trailing 53142667Sphantom * NUL from UPREFIX. 54108044Smike */ 55142667Sphantom#define EBUFSIZE (20 + 2 + sizeof(UPREFIX)) 561573Srgrimes 57108118Smike/* 58108118Smike * Doing this by hand instead of linking with stdio(3) avoids bloat for 59108118Smike * statically linked binaries. 60108118Smike */ 61108044Smikestatic void 62142667Sphantomerrstr(int num, char *uprefix, char *buf, size_t len) 6387434Swes{ 64108603Smike char *t; 65108044Smike unsigned int uerr; 66108044Smike char tmp[EBUFSIZE]; 6787434Swes 68108603Smike t = tmp + sizeof(tmp); 69108603Smike *--t = '\0'; 70108044Smike uerr = (num >= 0) ? num : -num; 711573Srgrimes do { 72108603Smike *--t = "0123456789"[uerr % 10]; 7386944Swes } while (uerr /= 10); 7487434Swes if (num < 0) 75108603Smike *--t = '-'; 76142667Sphantom *--t = ' '; 77142667Sphantom *--t = ':'; 78142667Sphantom strlcpy(buf, uprefix, len); 79114443Snectar strlcat(buf, t, len); 801573Srgrimes} 8186944Swes 82108044Smikeint 83108044Smikestrerror_r(int errnum, char *strerrbuf, size_t buflen) 84108044Smike{ 85142667Sphantom int retval = 0; 86142667Sphantom#if defined(NLS) 87142667Sphantom int saved_errno = errno; 88142667Sphantom nl_catd catd; 89142667Sphantom catd = catopen("libc", NL_CAT_LOCALE); 90142667Sphantom#endif 9186944Swes 92255108Sjilles if (errnum < 0 || errnum >= __hidden_sys_nerr) { 93142667Sphantom errstr(errnum, 94142667Sphantom#if defined(NLS) 95142667Sphantom catgets(catd, 1, 0xffff, UPREFIX), 96142667Sphantom#else 97142667Sphantom UPREFIX, 98142667Sphantom#endif 99142667Sphantom strerrbuf, buflen); 100142667Sphantom retval = EINVAL; 101142667Sphantom } else { 102142667Sphantom if (strlcpy(strerrbuf, 103142667Sphantom#if defined(NLS) 104255108Sjilles catgets(catd, 1, errnum, __hidden_sys_errlist[errnum]), 105142667Sphantom#else 106255108Sjilles __hidden_sys_errlist[errnum], 107142667Sphantom#endif 108142667Sphantom buflen) >= buflen) 109142667Sphantom retval = ERANGE; 110108118Smike } 111142667Sphantom 112142667Sphantom#if defined(NLS) 113142667Sphantom catclose(catd); 114142667Sphantom errno = saved_errno; 115142667Sphantom#endif 116142667Sphantom 117142667Sphantom return (retval); 118108044Smike} 11986944Swes 120108044Smikechar * 121108044Smikestrerror(int num) 12286944Swes{ 123142667Sphantom static char ebuf[NL_TEXTMAX]; 12486944Swes 125142667Sphantom if (strerror_r(num, ebuf, sizeof(ebuf)) != 0) 126232973Skib errno = EINVAL; 127108044Smike return (ebuf); 12886944Swes} 129