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 /* */
36 /* FUNCTION RELEASE */
37 /* */
38 /* _fxe_unicode_file_create PORTABLE C */
39 /* 6.1 */
40 /* AUTHOR */
41 /* */
42 /* William E. Lamie, Microsoft Corporation */
43 /* */
44 /* DESCRIPTION */
45 /* */
46 /* This function checks for errors in the Unicode file rename service. */
47 /* */
48 /* INPUT */
49 /* */
50 /* media_ptr Pointer to media */
51 /* old_unicode_name Pointer to old unicode name */
52 /* old_unicode_length Old unicode name length */
53 /* new_unicode_name Pointer to new unicode name */
54 /* new_unicode_length New unicode name length */
55 /* new_short_name Designated new short name */
56 /* */
57 /* OUTPUT */
58 /* */
59 /* Completion Status */
60 /* */
61 /* CALLS */
62 /* */
63 /* _fx_unicode_file_rename Actual Unicode file rename */
64 /* service */
65 /* */
66 /* CALLED BY */
67 /* */
68 /* Application Code */
69 /* */
70 /* RELEASE HISTORY */
71 /* */
72 /* DATE NAME DESCRIPTION */
73 /* */
74 /* 05-19-2020 William E. Lamie Initial Version 6.0 */
75 /* 09-30-2020 William E. Lamie Modified comment(s), */
76 /* resulting in version 6.1 */
77 /* */
78 /**************************************************************************/
_fxe_unicode_file_rename(FX_MEDIA * media_ptr,UCHAR * old_unicode_name,ULONG old_unicode_length,UCHAR * new_unicode_name,ULONG new_unicode_length,CHAR * new_short_name)79 UINT _fxe_unicode_file_rename(FX_MEDIA *media_ptr, UCHAR *old_unicode_name, ULONG old_unicode_length,
80 UCHAR *new_unicode_name, ULONG new_unicode_length, CHAR *new_short_name)
81 {
82
83 UINT status, i;
84
85
86 /* Check for a NULL media or name pointers. */
87 if ((media_ptr == FX_NULL) || (old_unicode_name == FX_NULL) || (old_unicode_length == 0) ||
88 (new_unicode_name == FX_NULL) || (new_unicode_length == 0) || (new_short_name == FX_NULL))
89 {
90 return(FX_PTR_ERROR);
91 }
92
93 /* Check for a valid caller. */
94 FX_CALLER_CHECKING_CODE
95
96 /* Check unicode zero in old_unicode_name */
97 for (i = 0; i < (old_unicode_length << 1); i += 2)
98 {
99 if ((old_unicode_name[i] == 0) && (old_unicode_name[i + 1] == 0))
100 {
101 return(FX_INVALID_NAME);
102 }
103 }
104
105 /* Check unicode zero in new_unicode_name */
106 for (i = 0; i < (new_unicode_length << 1); i += 2)
107 {
108 if ((new_unicode_name[i] == 0) && (new_unicode_name[i + 1] == 0))
109 {
110 return(FX_INVALID_NAME);
111 }
112 }
113
114 /* Call actual Unicode file rename service. */
115 status = _fx_unicode_file_rename(media_ptr, old_unicode_name, old_unicode_length,
116 new_unicode_name, new_unicode_length, new_short_name);
117
118 /* Return status to the caller. */
119 return(status);
120 }
121
122
