crypto/external/bsd/heimdal/dist/base/string.c

   1 /*      $NetBSD: string.c,v 1.1.1.1 2011/04/13 18:14:32 elric Exp $     */
   2
   3 /*
   4  * Copyright (c) 2010 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  *
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  *
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  *
  21  * 3. Neither the name of the Institute nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  */
  37
  38 #include "baselocl.h"
  39 #include <string.h>
  40
  41 static void
  42 string_dealloc(void *ptr)
  43 {
  44 }
  45
  46 static int
  47 string_cmp(void *a, void *b)
  48 {
  49     return strcmp(a, b);
  50 }
  51
  52 static unsigned long
  53 string_hash(void *ptr)
  54 {
  55     const char *s = ptr;
  56     unsigned long n;
  57
  58     for (n = 0; *s; ++s)
  59         n += *s;
  60     return n;
  61 }
  62
  63 struct heim_type_data _heim_string_object = {
  64     HEIM_TID_STRING,
  65     "string-object",
  66     NULL,
  67     string_dealloc,
  68     NULL,
  69     string_cmp,
  70     string_hash
  71 };
  72
  73 /**
  74  * Create a string object
  75  *
  76  * @param string the string to create, must be an utf8 string
  77  *
  78  * @return string object
  79  */
  80
  81 heim_string_t
  82 heim_string_create(const char *string)
  83 {
  84     size_t len = strlen(string);
  85     heim_string_t s;
  86
  87     s = _heim_alloc_object(&_heim_string_object, len + 1);
  88     if (s)
  89         memcpy(s, string, len + 1);
  90     return s;
  91 }
  92
  93 /**
  94  * Return the type ID of string objects
  95  *
  96  * @return type id of string objects
  97  */
  98
  99 heim_tid_t
 100 heim_string_get_type_id(void)
 101 {
 102     return HEIM_TID_STRING;
 103 }
 104
 105 /**
 106  * Get the string value of the content.
 107  *
 108  * @param string the string object to get the value from
 109  *
 110  * @return a utf8 string
 111  */
 112
 113 const char *
 114 heim_string_get_utf8(heim_string_t string)
 115 {
 116     return (const char *)string;
 117 }