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 }
118