crypto/external/bsd/heimdal/dist/lib/krb5/misc.c

   1 /*      $NetBSD: misc.c,v 1.1.1.2 2014/04/24 12:45:50 pettai Exp $      */
   2
   3 /*
   4  * Copyright (c) 1997 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 "krb5_locl.h"
  37 #ifdef HAVE_EXECINFO_H
  38 #include <execinfo.h>
  39 #endif
  40
  41 KRB5_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         krb5_clear_error_message(context);
  55         return ENOMEM;
  56     }
  57     krb5_storage_set_flags(sp, KRB5_STORAGE_BYTEORDER_LE);
  58     ret = krb5_store_int32(sp, self->name.name_type);
  59     if (ret)
  60         goto out;
  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             ret = ENOMEM;
  66             goto out;
  67         }
  68     }
  69     size = strlen(self->realm);
  70     ssize = krb5_storage_write(sp, self->realm, size);
  71     if (ssize != (krb5_ssize_t)size) {
  72         ret = ENOMEM;
  73         goto out;
  74     }
  75     size = strlen(self->auth);
  76     ssize = krb5_storage_write(sp, self->auth, size);
  77     if (ssize != (krb5_ssize_t)size) {
  78         ret = ENOMEM;
  79         goto out;
  80     }
  81
  82     ret = krb5_storage_to_data(sp, data);
  83     krb5_storage_free(sp);
  84     return ret;
  85
  86 out:
  87     krb5_clear_error_message(context);
  88     return ret;
  89 }
  90
  91 krb5_error_code
  92 krb5_enomem(krb5_context context)
  93 {
  94     krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
  95     return ENOMEM;
  96 }
  97
  98 void
  99 _krb5_debug_backtrace(krb5_context context)
 100 {
 101 #if defined(HAVE_BACKTRACE) && !defined(HEIMDAL_SMALLER)
 102     void *stack[128];
 103     char **strs = NULL;
 104     int i, frames = backtrace(stack, sizeof(stack) / sizeof(stack[0]));
 105     if (frames > 0)
 106         strs = backtrace_symbols(stack, frames);
 107     if (strs) {
 108         for (i = 0; i < frames; i++)
 109             _krb5_debug(context, 10, "frame %d: %s", i, strs[i]);
 110         free(strs);
 111     }
 112 #endif
 113 }
 114
 115 krb5_error_code
 116 _krb5_einval(krb5_context context, const char *func, unsigned long argn)
 117 {
 118 #ifndef HEIMDAL_SMALLER
 119     krb5_set_error_message(context, EINVAL,
 120                            N_("programmer error: invalid argument to %s argument %lu",
 121                               "function:line"),
 122                            func, argn);
 123     if (_krb5_have_debug(context, 10)) {
 124         _krb5_debug(context, 10, "invalid argument to function %s argument %lu",
 125                     func, argn);
 126         _krb5_debug_backtrace(context);
 127     }
 128 #endif
 129     return EINVAL;
 130 }