crypto/external/bsd/heimdal/dist/lib/roken/strerror_r.c

   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
  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
  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