static BOOLEAN
AxIsFileAscii (
FILE *Handle)
{
UINT8 Byte;
/* Read the entire file */
while (fread (&Byte, 1, 1, Handle) == 1)
{
/* Check for an ASCII character */
if (!ACPI_IS_ASCII (Byte))
{
goto ErrorExit;
}
/* Ensure character is either printable or a "space" char */
else if (!isprint (Byte) && !isspace (Byte))
{
goto ErrorExit;
}
}
/* File is OK (100% ASCII) */
fseek (Handle, 0, SEEK_SET);
return (TRUE);
ErrorExit:
printf ("File is binary (contains non-text or non-ascii characters)\n");
fseek (Handle, 0, SEEK_SET);
return (FALSE);
}
ACPI_STATUS
AcValidateTableHeader (
FILE *File,
long TableOffset)
{
ACPI_TABLE_HEADER TableHeader;
ACPI_SIZE Actual;
long OriginalOffset;
UINT32 FileSize;
UINT32 i;
ACPI_FUNCTION_TRACE (AcValidateTableHeader);
/* Read a potential table header */
OriginalOffset = ftell (File);
fseek (File, TableOffset, SEEK_SET);
Actual = fread (&TableHeader, 1, sizeof (ACPI_TABLE_HEADER), File);
fseek (File, OriginalOffset, SEEK_SET);
if (Actual < sizeof (ACPI_TABLE_HEADER))
{
return (AE_ERROR);
}
/* Validate the signature (limited ASCII chars) */
if (!AcpiUtValidNameseg (TableHeader.Signature))
{
fprintf (stderr, "Invalid table signature: 0x%8.8X\n",
*ACPI_CAST_PTR (UINT32, TableHeader.Signature));
return (AE_BAD_SIGNATURE);
}
/* Validate table length against bytes remaining in the file */
FileSize = CmGetFileSize (File);
if (TableHeader.Length > (UINT32) (FileSize - TableOffset))
{
fprintf (stderr, "Table [%4.4s] is too long for file - "
"needs: 0x%.2X, remaining in file: 0x%.2X\n",
TableHeader.Signature, TableHeader.Length,
(UINT32) (FileSize - TableOffset));
return (AE_BAD_HEADER);
}
/*
* These fields must be ASCII: OemId, OemTableId, AslCompilerId.
* We allow a NULL terminator in OemId and OemTableId.
*/
for (i = 0; i < ACPI_NAME_SIZE; i++)
{
if (!ACPI_IS_ASCII ((UINT8) TableHeader.AslCompilerId[i]))
{
goto BadCharacters;
}
}
for (i = 0; (i < ACPI_OEM_ID_SIZE) && (TableHeader.OemId[i]); i++)
{
if (!ACPI_IS_ASCII ((UINT8) TableHeader.OemId[i]))
{
goto BadCharacters;
}
}
for (i = 0; (i < ACPI_OEM_TABLE_ID_SIZE) && (TableHeader.OemTableId[i]); i++)
{
if (!ACPI_IS_ASCII ((UINT8) TableHeader.OemTableId[i]))
{
goto BadCharacters;
}
}
return (AE_OK);
BadCharacters:
ACPI_WARNING ((AE_INFO,
"Table header for [%4.4s] has invalid ASCII character(s)",
TableHeader.Signature));
return (AE_OK);
}
ACPI_STATUS
FlIsFileAsciiSource (
char *Filename,
BOOLEAN DisplayErrors)
{
UINT8 Byte;
ACPI_SIZE BadBytes = 0;
BOOLEAN OpeningComment = FALSE;
ASL_FILE_STATUS Status;
FILE *Handle;
/* Open file in text mode so file offset is always accurate */
Handle = fopen (Filename, "rb");
if (!Handle)
{
perror ("Could not open input file");
return (AE_ERROR);
}
Status.Line = 1;
Status.Offset = 0;
/* Read the entire file */
while (fread (&Byte, 1, 1, Handle) == 1)
{
/* Ignore comment fields (allow non-ascii within) */
if (OpeningComment)
{
/* Check for second comment open delimiter */
if (Byte == '*')
{
FlConsumeAnsiComment (Handle, &Status);
}
if (Byte == '/')
{
FlConsumeNewComment (Handle, &Status);
}
/* Reset */
OpeningComment = FALSE;
}
else if (Byte == '/')
{
OpeningComment = TRUE;
}
/* Check for an ASCII character */
if (!ACPI_IS_ASCII (Byte))
{
if ((BadBytes < 10) && (DisplayErrors))
{
AcpiOsPrintf (
"Found non-ASCII character in source text: "
"0x%2.2X in line %u, file offset 0x%2.2X\n",
Byte, Status.Line, Status.Offset);
}
BadBytes++;
}
/* Ensure character is either printable or a "space" char */
else if (!isprint (Byte) && !isspace (Byte))
{
if ((BadBytes < 10) && (DisplayErrors))
{
AcpiOsPrintf (
"Found invalid character in source text: "
"0x%2.2X in line %u, file offset 0x%2.2X\n",
Byte, Status.Line, Status.Offset);
}
BadBytes++;
}
/* Update line counter as necessary */
if (Byte == 0x0A)
{
Status.Line++;
}
Status.Offset++;
}
fclose (Handle);
/* Were there any non-ASCII characters in the file? */
if (BadBytes)
{
if (DisplayErrors)
{
AcpiOsPrintf (
"Total %u invalid characters found in input source text, "
"could be a binary file\n", BadBytes);
AslError (ASL_ERROR, ASL_MSG_NON_ASCII, NULL, Filename);
}
return (AE_BAD_CHARACTER);
}
/* File is OK (100% ASCII) */
return (AE_OK);
}
ACPI_STATUS
FlCheckForAcpiTable (
FILE *Handle)
{
ACPI_TABLE_HEADER Table;
UINT32 FileSize;
size_t Actual;
UINT32 i;
/* Read a potential table header */
Actual = fread (&Table, 1, sizeof (ACPI_TABLE_HEADER), Handle);
fseek (Handle, 0, SEEK_SET);
if (Actual < sizeof (ACPI_TABLE_HEADER))
{
return (AE_ERROR);
}
/* Header length field must match the file size */
FileSize = CmGetFileSize (Handle);
if (Table.Length != FileSize)
{
return (AE_ERROR);
}
/*
* These fields must be ASCII:
* Signature, OemId, OemTableId, AslCompilerId.
* We allow a NULL terminator in OemId and OemTableId.
*/
for (i = 0; i < ACPI_NAME_SIZE; i++)
{
if (!ACPI_IS_ASCII ((UINT8) Table.Signature[i]))
{
return (AE_ERROR);
}
if (!ACPI_IS_ASCII ((UINT8) Table.AslCompilerId[i]))
{
return (AE_ERROR);
}
}
for (i = 0; (i < ACPI_OEM_ID_SIZE) && (Table.OemId[i]); i++)
{
if (!ACPI_IS_ASCII ((UINT8) Table.OemId[i]))
{
return (AE_ERROR);
}
}
for (i = 0; (i < ACPI_OEM_TABLE_ID_SIZE) && (Table.OemTableId[i]); i++)
{
if (!ACPI_IS_ASCII ((UINT8) Table.OemTableId[i]))
{
return (AE_ERROR);
}
}
printf ("Binary file appears to be a valid ACPI table, disassembling\n");
return (AE_OK);
}
ACPI_STATUS
FlCheckForAscii (
FILE *Handle,
char *Filename,
BOOLEAN DisplayErrors)
{
UINT8 Byte;
ACPI_SIZE BadBytes = 0;
BOOLEAN OpeningComment = FALSE;
ASL_FILE_STATUS Status;
Status.Line = 1;
Status.Offset = 0;
/* Read the entire file */
while (fread (&Byte, 1, 1, Handle) == 1)
{
/* Ignore comment fields (allow non-ascii within) */
if (OpeningComment)
{
/* Check for second comment open delimiter */
if (Byte == '*')
{
FlConsumeAnsiComment (Handle, &Status);
}
if (Byte == '/')
{
FlConsumeNewComment (Handle, &Status);
}
/* Reset */
OpeningComment = FALSE;
}
else if (Byte == '/')
{
OpeningComment = TRUE;
}
/* Check for an ASCII character */
if (!ACPI_IS_ASCII (Byte))
{
if ((BadBytes < 10) && (DisplayErrors))
{
AcpiOsPrintf (
"Non-ASCII character [0x%2.2X] found in line %u, file offset 0x%.2X\n",
Byte, Status.Line, Status.Offset);
}
BadBytes++;
}
/* Update line counter */
else if (Byte == 0x0A)
{
Status.Line++;
}
Status.Offset++;
}
/* Seek back to the beginning of the source file */
fseek (Handle, 0, SEEK_SET);
/* Were there any non-ASCII characters in the file? */
if (BadBytes)
{
if (DisplayErrors)
{
AcpiOsPrintf (
"%u non-ASCII characters found in input source text, could be a binary file\n",
BadBytes);
AslError (ASL_ERROR, ASL_MSG_NON_ASCII, NULL, Filename);
}
return (AE_BAD_CHARACTER);
}
/* File is OK (100% ASCII) */
return (AE_OK);
}
