static ACPI_STATUS
AcGetOneTableFromFile (
char *Filename,
FILE *File,
UINT8 GetOnlyAmlTables,
ACPI_TABLE_HEADER **ReturnTable)
{
ACPI_STATUS Status = AE_OK;
ACPI_TABLE_HEADER TableHeader;
ACPI_TABLE_HEADER *Table;
INT32 Count;
long TableOffset;
*ReturnTable = NULL;
/* Get the table header to examine signature and length */
TableOffset = ftell (File);
Count = fread (&TableHeader, 1, sizeof (ACPI_TABLE_HEADER), File);
if (Count != sizeof (ACPI_TABLE_HEADER))
{
return (AE_CTRL_TERMINATE);
}
/* Validate the table signature/header (limited ASCII chars) */
Status = AcValidateTableHeader (File, TableOffset);
if (ACPI_FAILURE (Status))
{
return (Status);
}
if (GetOnlyAmlTables)
{
/*
* Table must be an AML table (DSDT/SSDT).
* Used for iASL -e option only.
*/
if (!AcpiUtIsAmlTable (&TableHeader))
{
fprintf (stderr,
" %s: Table [%4.4s] is not an AML table - ignoring\n",
Filename, TableHeader.Signature);
return (AE_TYPE);
}
}
/* Allocate a buffer for the entire table */
Table = AcpiOsAllocate ((ACPI_SIZE) TableHeader.Length);
if (!Table)
{
return (AE_NO_MEMORY);
}
/* Read the entire ACPI table, including header */
fseek (File, TableOffset, SEEK_SET);
Count = fread (Table, 1, TableHeader.Length, File);
if (Count != (INT32) TableHeader.Length)
{
Status = AE_ERROR;
goto ErrorExit;
}
/* Validate the checksum (just issue a warning) */
Status = AcpiTbVerifyChecksum (Table, TableHeader.Length);
if (ACPI_FAILURE (Status))
{
Status = AcCheckTextModeCorruption (Table);
if (ACPI_FAILURE (Status))
{
goto ErrorExit;
}
}
*ReturnTable = Table;
return (AE_OK);
ErrorExit:
AcpiOsFree (Table);
return (Status);
}
static UINT8
AslDetectSourceFileType (
ASL_FILE_INFO *Info)
{
char *FileChar;
UINT8 Type = ASL_INPUT_TYPE_ASCII_DATA; /* default */
ACPI_STATUS Status;
/* Check for 100% ASCII source file (comments are ignored) */
Status = FlIsFileAsciiSource (Info->Filename, FALSE);
if (ACPI_SUCCESS (Status))
{
/*
* File contains ASCII source code. Determine if this is an ASL
* file or an ACPI data table file.
*/
while (fgets (AslGbl_CurrentLineBuffer, AslGbl_LineBufferSize, Info->Handle))
{
/* Uppercase the buffer for caseless compare */
FileChar = AslGbl_CurrentLineBuffer;
while (*FileChar)
{
*FileChar = (char) toupper ((int) *FileChar);
FileChar++;
}
/* Presence of "DefinitionBlock" indicates actual ASL code */
if (strstr (AslGbl_CurrentLineBuffer, "DEFINITIONBLOCK"))
{
/* Appears to be an ASL file */
Type = ASL_INPUT_TYPE_ASCII_ASL;
goto Cleanup;
}
}
/* Appears to be an ASCII data table source file */
Type = ASL_INPUT_TYPE_ASCII_DATA;
goto Cleanup;
}
/* We have some sort of binary table, check for valid ACPI table */
fseek (Info->Handle, 0, SEEK_SET);
Status = AcValidateTableHeader (Info->Handle, 0);
if (ACPI_SUCCESS (Status))
{
fprintf (stderr,
"Binary file appears to be a valid ACPI table, disassembling\n");
Type = ASL_INPUT_TYPE_BINARY_ACPI_TABLE;
goto Cleanup;
}
else
{
fprintf (stderr,
"Binary file does not contain a valid ACPI table\n");
}
Type = ASL_INPUT_TYPE_BINARY;
Cleanup:
/* Must seek back to the start of the file */
fseek (Info->Handle, 0, SEEK_SET);
return (Type);
}