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      1 /*	$NetBSD: store-int.c,v 1.2 2017/01/28 21:31:49 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997-2008 Kungliga Tekniska Hgskolan
      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 
     38 KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
     39 _krb5_put_int(void *buffer, uint64_t value, size_t size)
     40 {
     41     unsigned char *p = buffer;
     42     int i;
     43     for (i = size - 1; i >= 0; i--) {
     44 	p[i] = value & 0xff;
     45 	value >>= 8;
     46     }
     47     return size;
     48 }
     49 
     50 KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
     51 _krb5_get_int64(void *buffer, uint64_t *value, size_t size)
     52 {
     53     unsigned char *p = buffer;
     54     unsigned long v = 0;
     55     size_t i;
     56     for (i = 0; i < size; i++)
     57 	v = (v << 8) + p[i];
     58     *value = v;
     59     return size;
     60 }
     61 
     62 KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
     63 _krb5_get_int(void *buffer, unsigned long *value, size_t size)
     64 {
     65     uint64_t v64;
     66     krb5_ssize_t bytes = _krb5_get_int64(buffer, &v64, size);
     67     *value = v64;
     68     return bytes;
     69 }
     70