1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** USBX Component */
16 /** */
17 /** Utility */
18 /** */
19 /**************************************************************************/
20 /**************************************************************************/
21
22
23 /* Include necessary system files. */
24
25 #define UX_SOURCE_CODE
26
27 #include "ux_api.h"
28
29
30 /**************************************************************************/
31 /* */
32 /* FUNCTION RELEASE */
33 /* */
34 /* _ux_utility_string_length_get PORTABLE C */
35 /* 6.1 */
36 /* AUTHOR */
37 /* */
38 /* Chaoqiong Xiao, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* This function derives the length of a NULL-terminated string. */
43 /* */
44 /* This function is deprecated, for the possible issue of operating on */
45 /* a buffer that is not NULL-terminated. As a replacement, */
46 /* _ux_utility_string_length_check should be used, where the length of */
47 /* the buffer is introduced to validate the string by checking for the */
48 /* NULL-terminator within the buffer length. */
49 /* */
50 /* INPUT */
51 /* */
52 /* string Pointer to string */
53 /* */
54 /* OUTPUT */
55 /* */
56 /* length of string */
57 /* */
58 /* CALLS */
59 /* */
60 /* None */
61 /* */
62 /* CALLED BY */
63 /* */
64 /* USBX Components */
65 /* */
66 /* RELEASE HISTORY */
67 /* */
68 /* DATE NAME DESCRIPTION */
69 /* */
70 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
71 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
72 /* resulting in version 6.1 */
73 /* */
74 /**************************************************************************/
_ux_utility_string_length_get(UCHAR * string)75 ULONG _ux_utility_string_length_get(UCHAR *string)
76 {
77
78 ULONG length = 0;
79
80 /* Loop to find the length of the string. */
81 length = 0;
82 while (string[length])
83 {
84
85 /* Move to next position. */
86 length++;
87 }
88
89 /* Return length to caller. */
90 return(length);
91 }
92
93
