1 /*******************************************************************************
3 * Module Name: utstring - Common functions for strings and characters
5 ******************************************************************************/
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44 #include <contrib/dev/acpica/include/acpi.h>
45 #include <contrib/dev/acpica/include/accommon.h>
46 #include <contrib/dev/acpica/include/acnamesp.h>
49 #define _COMPONENT ACPI_UTILITIES
50 ACPI_MODULE_NAME ("utstring")
53 /*******************************************************************************
55 * FUNCTION: AcpiUtPrintString
57 * PARAMETERS: String - Null terminated ASCII string
58 * MaxLength - Maximum output length. Used to constrain the
59 * length of strings during debug output only.
63 * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
66 ******************************************************************************/
78 AcpiOsPrintf ("<\"NULL STRING PTR\">");
83 for (i = 0; (i < MaxLength) && String[i]; i++)
85 /* Escape sequences */
91 AcpiOsPrintf ("\\a"); /* BELL */
96 AcpiOsPrintf ("\\b"); /* BACKSPACE */
101 AcpiOsPrintf ("\\f"); /* FORMFEED */
106 AcpiOsPrintf ("\\n"); /* LINEFEED */
111 AcpiOsPrintf ("\\r"); /* CARRIAGE RETURN*/
116 AcpiOsPrintf ("\\t"); /* HORIZONTAL TAB */
121 AcpiOsPrintf ("\\v"); /* VERTICAL TAB */
124 case '\'': /* Single Quote */
125 case '\"': /* Double Quote */
126 case '\\': /* Backslash */
128 AcpiOsPrintf ("\\%c", (int) String[i]);
133 /* Check for printable character or hex escape */
135 if (isprint ((int) String[i]))
137 /* This is a normal character */
139 AcpiOsPrintf ("%c", (int) String[i]);
143 /* All others will be Hex escapes */
145 AcpiOsPrintf ("\\x%2.2X", (INT32) String[i]);
152 if (i == MaxLength && String[i])
154 AcpiOsPrintf ("...");
159 /*******************************************************************************
161 * FUNCTION: AcpiUtValidAcpiChar
163 * PARAMETERS: Char - The character to be examined
164 * Position - Byte position (0-3)
166 * RETURN: TRUE if the character is valid, FALSE otherwise
168 * DESCRIPTION: Check for a valid ACPI character. Must be one of:
169 * 1) Upper case alpha
173 * We allow a '!' as the last character because of the ASF! table
175 ******************************************************************************/
178 AcpiUtValidAcpiChar (
183 if (!((Character >= 'A' && Character <= 'Z') ||
184 (Character >= '0' && Character <= '9') ||
187 /* Allow a '!' in the last position */
189 if (Character == '!' && Position == 3)
201 /*******************************************************************************
203 * FUNCTION: AcpiUtValidAcpiName
205 * PARAMETERS: Name - The name to be examined. Does not have to
206 * be NULL terminated string.
208 * RETURN: TRUE if the name is valid, FALSE otherwise
210 * DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
211 * 1) Upper case alpha
215 ******************************************************************************/
218 AcpiUtValidAcpiName (
224 ACPI_FUNCTION_ENTRY ();
227 for (i = 0; i < ACPI_NAME_SIZE; i++)
229 if (!AcpiUtValidAcpiChar (Name[i], i))
239 /*******************************************************************************
241 * FUNCTION: AcpiUtRepairName
243 * PARAMETERS: Name - The ACPI name to be repaired
245 * RETURN: Repaired version of the name
247 * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
248 * return the new name. NOTE: the Name parameter must reside in
249 * read/write memory, cannot be a const.
251 * An ACPI Name must consist of valid ACPI characters. We will repair the name
252 * if necessary because we don't want to abort because of this, but we want
253 * all namespace names to be printable. A warning message is appropriate.
255 * This issue came up because there are in fact machines that exhibit
256 * this problem, and we want to be able to enable ACPI support for them,
257 * even though there are a few bad names.
259 ******************************************************************************/
266 BOOLEAN FoundBadChar = FALSE;
270 ACPI_FUNCTION_NAME (UtRepairName);
273 ACPI_MOVE_NAME (&OriginalName, Name);
275 /* Check each character in the name */
277 for (i = 0; i < ACPI_NAME_SIZE; i++)
279 if (AcpiUtValidAcpiChar (Name[i], i))
285 * Replace a bad character with something printable, yet technically
286 * still invalid. This prevents any collisions with existing "good"
287 * names in the namespace.
295 /* Report warning only if in strict mode or debug mode */
297 if (!AcpiGbl_EnableInterpreterSlack)
299 ACPI_WARNING ((AE_INFO,
300 "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
301 OriginalName, Name));
305 ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
306 "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
307 OriginalName, Name));
313 #if defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP
314 /*******************************************************************************
316 * FUNCTION: UtConvertBackslashes
318 * PARAMETERS: Pathname - File pathname string to be converted
320 * RETURN: Modifies the input Pathname
322 * DESCRIPTION: Convert all backslashes (0x5C) to forward slashes (0x2F) within
323 * the entire input file pathname string.
325 ******************************************************************************/
328 UtConvertBackslashes (
339 if (*Pathname == '\\')