BOOLEAN
AcpiIsValidSignature (
char *Signature)
{
UINT32 i;
/* Validate the signature length */
if (strlen (Signature) != ACPI_NAME_SIZE)
{
return (FALSE);
}
/* Validate each character in the signature */
for (i = 0; i < ACPI_NAME_SIZE; i++)
{
if (!AcpiUtValidAcpiChar (Signature[i], i))
{
return (FALSE);
}
}
return (TRUE);
}
void
AcpiUtRepairName (
char *Name)
{
UINT32 i;
BOOLEAN FoundBadChar = FALSE;
UINT32 OriginalName;
ACPI_FUNCTION_NAME (UtRepairName);
/*
* 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 (&OriginalName, Name);
/* Check each character in the name */
for (i = 0; i < ACPI_NAME_SIZE; i++)
{
if (AcpiUtValidAcpiChar (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] = '*';
FoundBadChar = TRUE;
}
if (FoundBadChar)
{
/* Report warning only if in strict mode or debug mode */
if (!AcpiGbl_EnableInterpreterSlack)
{
ACPI_WARNING ((AE_INFO,
"Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
OriginalName, Name));
}
else
{
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
OriginalName, Name));
}
}
}
BOOLEAN
AcpiUtValidAcpiName (
char *Name)
{
UINT32 i;
ACPI_FUNCTION_ENTRY ();
for (i = 0; i < ACPI_NAME_SIZE; i++)
{
if (!AcpiUtValidAcpiChar (Name[i], i))
{
return (FALSE);
}
}
return (TRUE);
}
static ACPI_STATUS
AcpiExNameSegment (
UINT8 **InAmlAddress,
char *NameString)
{
char *AmlAddress = (void *) *InAmlAddress;
ACPI_STATUS Status = AE_OK;
UINT32 Index;
char CharBuf[5];
ACPI_FUNCTION_TRACE (ExNameSegment);
/*
* If first character is a digit, then we know that we aren't looking at a
* valid name segment
*/
CharBuf[0] = *AmlAddress;
if ('0' <= CharBuf[0] && CharBuf[0] <= '9')
{
ACPI_ERROR ((AE_INFO, "Invalid leading digit: %c", CharBuf[0]));
return_ACPI_STATUS (AE_CTRL_PENDING);
}
ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Bytes from stream:\n"));
for (Index = 0;
(Index < ACPI_NAME_SIZE) && (AcpiUtValidAcpiChar (*AmlAddress, 0));
Index++)
{
CharBuf[Index] = *AmlAddress++;
ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "%c\n", CharBuf[Index]));
}
/* Valid name segment */
if (Index == 4)
{
/* Found 4 valid characters */
CharBuf[4] = '\0';
if (NameString)
{
ACPI_STRCAT (NameString, CharBuf);
ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
"Appended to - %s\n", NameString));
}
else
{
ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
"No Name string - %s\n", CharBuf));
}
}
else if (Index == 0)
{
/*
* First character was not a valid name character,
* so we are looking at something other than a name.
*/
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"Leading character is not alpha: %02Xh (not a name)\n",
CharBuf[0]));
Status = AE_CTRL_PENDING;
}
else
{
/*
* Segment started with one or more valid characters, but fewer than
* the required 4
*/
Status = AE_AML_BAD_NAME;
ACPI_ERROR ((AE_INFO,
"Bad character 0x%02x in name, at %p",
*AmlAddress, AmlAddress));
}
*InAmlAddress = ACPI_CAST_PTR (UINT8, AmlAddress);
return_ACPI_STATUS (Status);
}
