1/*	$NetBSD: misc.c,v 1.2 2017/01/28 21:31:49 christos Exp $	*/
2
3/*
4 * Copyright (c) 1997 Kungliga Tekniska H��gskolan
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 "krb5_locl.h"
37#ifdef HAVE_EXECINFO_H
38#include <execinfo.h>
39#endif
40
41KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
42_krb5_s4u2self_to_checksumdata(krb5_context context,
43			       const PA_S4U2Self *self,
44			       krb5_data *data)
45{
46    krb5_error_code ret;
47    krb5_ssize_t ssize;
48    krb5_storage *sp;
49    size_t size;
50    size_t i;
51
52    sp = krb5_storage_emem();
53    if (sp == NULL)
54	return krb5_enomem(context);
55    krb5_storage_set_flags(sp, KRB5_STORAGE_BYTEORDER_LE);
56    ret = krb5_store_int32(sp, self->name.name_type);
57    if (ret) {
58	krb5_clear_error_message(context);
59	return ret;
60    }
61    for (i = 0; i < self->name.name_string.len; i++) {
62	size = strlen(self->name.name_string.val[i]);
63	ssize = krb5_storage_write(sp, self->name.name_string.val[i], size);
64	if (ssize != (krb5_ssize_t)size)
65	    return krb5_enomem(context);
66    }
67    size = strlen(self->realm);
68    ssize = krb5_storage_write(sp, self->realm, size);
69    if (ssize != (krb5_ssize_t)size)
70	return krb5_enomem(context);
71    size = strlen(self->auth);
72    ssize = krb5_storage_write(sp, self->auth, size);
73    if (ssize != (krb5_ssize_t)size)
74	return krb5_enomem(context);
75
76    ret = krb5_storage_to_data(sp, data);
77    krb5_storage_free(sp);
78    return ret;
79}
80
81KRB5_LIB_FUNCTION void KRB5_LIB_CALL
82_krb5_debug_backtrace(krb5_context context)
83{
84#if defined(HAVE_BACKTRACE) && defined(HAVE_BACKTRACE_SYMBOLS) && !defined(HEIMDAL_SMALLER)
85    void *stack[128];
86    char **strs = NULL;
87    int i, frames = backtrace(stack, sizeof(stack) / sizeof(stack[0]));
88    if (frames > 0)
89	strs = backtrace_symbols(stack, frames);
90    if (strs) {
91	for (i = 0; i < frames; i++)
92	    _krb5_debug(context, 10, "frame %d: %s", i, strs[i]);
93	free(strs);
94    }
95#endif
96}
97
98KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
99_krb5_einval(krb5_context context, const char *func, unsigned long argn)
100{
101#ifndef HEIMDAL_SMALLER
102    krb5_set_error_message(context, EINVAL,
103			   N_("programmer error: invalid argument to %s argument %lu",
104			      "function:line"),
105			   func, argn);
106    if (_krb5_have_debug(context, 10)) {
107	_krb5_debug(context, 10, "invalid argument to function %s argument %lu",
108		    func, argn);
109	_krb5_debug_backtrace(context);
110    }
111#endif
112    return EINVAL;
113}
114