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 /** FileX Component */
16 /** */
17 /** Unicode */
18 /** */
19 /**************************************************************************/
20 /**************************************************************************/
21
22 #define FX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "fx_api.h"
28 #include "fx_unicode.h"
29
30
31 FX_CALLER_CHECKING_EXTERNS
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _fxe_unicode_short_name_get_extended PORTABLE C */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* William E. Lamie, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function checks for errors in the Unicode short name get */
46 /* service. */
47 /* */
48 /* INPUT */
49 /* */
50 /* media_ptr Pointer to media */
51 /* source_unicode_name Pointer to unicode name */
52 /* source_unicode_length Length of unicode name */
53 /* destination_short_name Pointer to destination name */
54 /* short_name_buffer_length Buffer length of short name */
55 /* */
56 /* OUTPUT */
57 /* */
58 /* Completion Status */
59 /* */
60 /* CALLS */
61 /* */
62 /* _fx_unicode_short_name_get_extended Actual unicode short name get */
63 /* service */
64 /* */
65 /* CALLED BY */
66 /* */
67 /* Application Code */
68 /* */
69 /* RELEASE HISTORY */
70 /* */
71 /* DATE NAME DESCRIPTION */
72 /* */
73 /* 05-19-2020 William E. Lamie Initial Version 6.0 */
74 /* 09-30-2020 William E. Lamie Modified comment(s), */
75 /* resulting in version 6.1 */
76 /* */
77 /**************************************************************************/
_fxe_unicode_short_name_get_extended(FX_MEDIA * media_ptr,UCHAR * source_unicode_name,ULONG source_unicode_length,CHAR * destination_short_name,ULONG short_name_buffer_length)78 UINT _fxe_unicode_short_name_get_extended(FX_MEDIA *media_ptr, UCHAR *source_unicode_name, ULONG source_unicode_length,
79 CHAR *destination_short_name, ULONG short_name_buffer_length)
80 {
81
82 UINT status, i;
83
84
85 /* Check for a NULL media or name pointers. */
86 if ((media_ptr == FX_NULL) || (source_unicode_name == FX_NULL) || (source_unicode_length == 0) || (destination_short_name == FX_NULL))
87 {
88 return(FX_PTR_ERROR);
89 }
90
91 /* Check for zero length buffer. */
92 if (short_name_buffer_length == 0)
93 {
94 return(FX_BUFFER_ERROR);
95 }
96
97 /* Check for a valid caller. */
98 FX_CALLER_CHECKING_CODE
99
100 /* Check unicode zero in source_unicode_name */
101 for (i = 0; i < (source_unicode_length << 1); i += 2)
102 {
103 if ((source_unicode_name[i] == 0) && (source_unicode_name[i + 1] == 0))
104 {
105 return(FX_INVALID_NAME);
106 }
107 }
108
109 /* Call actual Unicode short name get service. */
110 status = _fx_unicode_short_name_get_extended(media_ptr, source_unicode_name, source_unicode_length, destination_short_name, short_name_buffer_length);
111
112 /* Return status to the caller. */
113 return(status);
114 }
115
116
