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      1 /*	$NetBSD: strerror_ss.c,v 1.2 2017/01/12 00:43:55 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2017 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #include <sys/cdefs.h>
     32 __RCSID("$NetBSD: strerror_ss.c,v 1.2 2017/01/12 00:43:55 christos Exp $");
     33 
     34 #include "namespace.h"
     35 
     36 #include <errno.h>
     37 #include <stdio.h>
     38 #include <string.h>
     39 
     40 #include "extern.h"
     41 
     42 #ifdef __weak_alias
     43 __weak_alias(strerror_r_ss,_strerror_r_ss)
     44 #endif
     45 
     46 int
     47 strerror_r_ss(int num, char *buf, size_t len)
     48 {
     49 	if (num >= 0 || num < sys_nerr)
     50 		strlcpy(buf, sys_errlist[num], len);
     51 	else
     52 		snprintf_ss(buf, len, "Unknown error %d", num);
     53 	return 0;
     54 }
     55 
     56 __aconst char *
     57 strerror_ss(int num)
     58 {
     59 	static char buf[64];
     60 
     61 	strerror_r_ss(num, buf, sizeof(buf));
     62 	return buf;
     63 }
     64