lib/krb5/padata.c

   1 /*
   2  * Copyright (c) 1997 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 "krb5_locl.h"
  35
  36 PA_DATA *
  37 krb5_find_padata(PA_DATA *val, unsigned len, int type, int *idx)
  38 {
  39     for(; *idx < len; (*idx)++)
  40         if(val[*idx].padata_type == type)
  41             return val + *idx;
  42     return NULL;
  43 }
  44
  45 int KRB5_LIB_FUNCTION
  46 krb5_padata_add(krb5_context context, METHOD_DATA *md,
  47                 int type, void *buf, size_t len)
  48 {
  49     PA_DATA *pa;
  50
  51     pa = realloc (md->val, (md->len + 1) * sizeof(*md->val));
  52     if (pa == NULL) {
  53         krb5_set_error_message(context, ENOMEM,
  54                                N_("malloc: out of memory", ""));
  55         return ENOMEM;
  56     }
  57     md->val = pa;
  58
  59     pa[md->len].padata_type = type;
  60     pa[md->len].padata_value.length = len;
  61     pa[md->len].padata_value.data = buf;
  62     md->len++;
  63
  64     return 0;
  65 }