xref: /freebsd/crypto/heimdal/lib/roken/hstrerror.c (revision ddd5b8e9b4d8957fce018c520657cdfa4ecffad3)
1 /*
2  * Copyright (c) 1995 - 1999 Kungliga Tekniska Högskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * 3. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include <config.h>
35 
36 #ifndef HAVE_HSTRERROR
37 
38 #if (defined(SunOS) && (SunOS >= 50))
39 #define hstrerror broken_proto
40 #endif
41 #include "roken.h"
42 #if (defined(SunOS) && (SunOS >= 50))
43 #undef hstrerror
44 #endif
45 
46 #if !(defined(HAVE_H_ERRLIST) && defined(HAVE_H_NERR))
47 static const char *const h_errlist[] = {
48     "Resolver Error 0 (no error)",
49     "Unknown host",		/* 1 HOST_NOT_FOUND */
50     "Host name lookup failure",	/* 2 TRY_AGAIN */
51     "Unknown server error",	/* 3 NO_RECOVERY */
52     "No address associated with name", /* 4 NO_ADDRESS */
53 };
54 
55 static
56 const
57 int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };
58 #else
59 
60 #if !HAVE_DECL_H_ERRLIST
61 extern const char *h_errlist[];
62 extern int h_nerr;
63 #endif
64 
65 #endif
66 
67 ROKEN_LIB_FUNCTION const char * ROKEN_LIB_CALL
68 hstrerror(int herr)
69 {
70     if (0 <= herr && herr < h_nerr)
71 	return h_errlist[herr];
72     else if(herr == -17)
73 	return "unknown error";
74     else
75 	return "Error number out of range (hstrerror)";
76 }
77 
78 #endif
79