1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/*******************************************************************************
*
* Module Name: utstring - Common functions for strings and characters
*
******************************************************************************/
/*
* Copyright (C) 2000 - 2018, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <acpi/acpi.h>
#include "accommon.h"
#include "acnamesp.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utstring")
/*******************************************************************************
*
* FUNCTION: acpi_ut_print_string
*
* PARAMETERS: string - Null terminated ASCII string
* max_length - Maximum output length. Used to constrain the
* length of strings during debug output only.
*
* RETURN: None
*
* DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
* sequences.
*
******************************************************************************/
void acpi_ut_print_string(char *string, u16 max_length)
{
u32 i;
if (!string) {
acpi_os_printf("<\"NULL STRING PTR\">");
return;
}
acpi_os_printf("\"");
for (i = 0; (i < max_length) && string[i]; i++) {
/* Escape sequences */
switch (string[i]) {
case 0x07:
acpi_os_printf("\\a"); /* BELL */
break;
case 0x08:
acpi_os_printf("\\b"); /* BACKSPACE */
break;
case 0x0C:
acpi_os_printf("\\f"); /* FORMFEED */
break;
case 0x0A:
acpi_os_printf("\\n"); /* LINEFEED */
break;
case 0x0D:
acpi_os_printf("\\r"); /* CARRIAGE RETURN */
break;
case 0x09:
acpi_os_printf("\\t"); /* HORIZONTAL TAB */
break;
case 0x0B:
acpi_os_printf("\\v"); /* VERTICAL TAB */
break;
case '\'': /* Single Quote */
case '\"': /* Double Quote */
case '\\': /* Backslash */
acpi_os_printf("\\%c", (int)string[i]);
break;
default:
/* Check for printable character or hex escape */
if (isprint((int)string[i])) {
/* This is a normal character */
acpi_os_printf("%c", (int)string[i]);
} else {
/* All others will be Hex escapes */
acpi_os_printf("\\x%2.2X", (s32)string[i]);
}
break;
}
}
acpi_os_printf("\"");
if (i == max_length && string[i]) {
acpi_os_printf("...");
}
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_repair_name
*
* PARAMETERS: name - The ACPI name to be repaired
*
* RETURN: Repaired version of the name
*
* DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
* return the new name. NOTE: the Name parameter must reside in
* read/write memory, cannot be a const.
*
* An ACPI Name must consist of valid ACPI characters. We will repair the name
* if necessary because we don't want to abort because of this, but we want
* all namespace names to be printable. A warning message is appropriate.
*
* This issue came up because there are in fact machines that exhibit
* this problem, and we want to be able to enable ACPI support for them,
* even though there are a few bad names.
*
******************************************************************************/
void acpi_ut_repair_name(char *name)
{
u32 i;
u8 found_bad_char = FALSE;
u32 original_name;
ACPI_FUNCTION_NAME(ut_repair_name);
/*
* Special case for the root node. This can happen if we get an
* error during the execution of module-level code.
*/
if (ACPI_COMPARE_NAME(name, "\\___")) {
return;
}
ACPI_MOVE_NAME(&original_name, name);
/* Check each character in the name */
for (i = 0; i < ACPI_NAME_SIZE; i++) {
if (acpi_ut_valid_name_char(name[i], i)) {
continue;
}
/*
* Replace a bad character with something printable, yet technically
* still invalid. This prevents any collisions with existing "good"
* names in the namespace.
*/
name[i] = '*';
found_bad_char = TRUE;
}
if (found_bad_char) {
/* Report warning only if in strict mode or debug mode */
if (!acpi_gbl_enable_interpreter_slack) {
ACPI_WARNING((AE_INFO,
"Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
original_name, name));
} else {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
original_name, name));
}
}
}
#if defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP
/*******************************************************************************
*
* FUNCTION: ut_convert_backslashes
*
* PARAMETERS: pathname - File pathname string to be converted
*
* RETURN: Modifies the input Pathname
*
* DESCRIPTION: Convert all backslashes (0x5C) to forward slashes (0x2F) within
* the entire input file pathname string.
*
******************************************************************************/
void ut_convert_backslashes(char *pathname)
{
if (!pathname) {
return;
}
while (*pathname) {
if (*pathname == '\\') {
*pathname = '/';
}
pathname++;
}
}
#endif
|
