1 /* $NetBSD: strerror_r.c,v 1.1.1.1 2011/04/13 18:15:43 elric Exp $ */
2
3 /*
4 * Copyright (c) 1995, 1996, 1997, 1998 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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 * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 <config.h>
37
38 #if (!defined(HAVE_STRERROR_R) && !defined(strerror_r)) || (!defined(STRERROR_R_PROTO_COMPATIBLE) && defined(HAVE_STRERROR_R))
39
40 #include <stdio.h>
41 #include <string.h>
42 #include <errno.h>
43 #include <krb5/roken.h>
44
45 #ifdef _MSC_VER
46
47 int ROKEN_LIB_FUNCTION
rk_strerror_r(int eno,char * strerrbuf,size_t buflen)48 rk_strerror_r(int eno, char * strerrbuf, size_t buflen)
49 {
50 errno_t err;
51
52 err = strerror_s(strerrbuf, buflen, eno);
53 if (err != 0) {
54 int code;
55 code = sprintf_s(strerrbuf, buflen, "Error % occurred.", eno);
56 err = ((code != 0)? errno : 0);
57 }
58
59 return err;
60 }
61
62 #else /* _MSC_VER */
63
64 int ROKEN_LIB_FUNCTION
rk_strerror_r(int eno,char * strerrbuf,size_t buflen)65 rk_strerror_r(int eno, char *strerrbuf, size_t buflen)
66 {
67 /* Assume is the linux broken strerror_r (returns the a buffer (char *) if the input buffer wasn't use */
68 #ifdef HAVE_STRERROR_R
69 const char *str;
70 str = strerror_r(eno, strerrbuf, buflen);
71 if (str != strerrbuf)
72 if (strlcpy(strerrbuf, str, buflen) >= buflen)
73 return ERANGE;
74 return 0;
75 #else
76 int ret;
77 ret = strlcpy(strerrbuf, strerror(eno), buflen);
78 if (ret > buflen)
79 return ERANGE;
80 return 0;
81 #endif
82 }
83
84 #endif /* !_MSC_VER */
85
86 #endif
87