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f-stack/freebsd/contrib/dev/acpica/compiler/aslascii.c

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/******************************************************************************
*
* Module Name: aslascii - ASCII detection and support routines
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2020, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************
*
* Alternatively, you may choose to be licensed under the terms of the
* following license:
*
* 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.
*
* 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 MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* 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 DAMAGE.
*
* Alternatively, you may choose to be licensed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
*****************************************************************************/
#include <contrib/dev/acpica/compiler/aslcompiler.h>
#include <contrib/dev/acpica/include/actables.h>
#include <contrib/dev/acpica/include/acapps.h>
#define _COMPONENT ACPI_COMPILER
ACPI_MODULE_NAME ("aslascii")
/* Local prototypes */
static void
FlConsumeAnsiComment (
FILE *Handle,
ASL_FILE_STATUS *Status);
static void
FlConsumeNewComment (
FILE *Handle,
ASL_FILE_STATUS *Status);
/*******************************************************************************
*
* FUNCTION: FlIsFileAsciiSource
*
* PARAMETERS: Filename - Full input filename
* DisplayErrors - TRUE if error messages desired
*
* RETURN: Status
*
* DESCRIPTION: Verify that the input file is entirely ASCII. Ignores characters
* within comments. Note: does not handle nested comments and does
* not handle comment delimiters within string literals. However,
* on the rare chance this happens and an invalid character is
* missed, the parser will catch the error by failing in some
* spectactular manner.
*
******************************************************************************/
ACPI_STATUS
FlIsFileAsciiSource (
char *Filename,
BOOLEAN DisplayErrors)
{
UINT8 Byte;
UINT32 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)
{
fprintf (stderr,
"File appears to be binary: found %u non-ASCII characters, disassembling\n",
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);
}
/*******************************************************************************
*
* FUNCTION: FlConsumeAnsiComment
*
* PARAMETERS: Handle - Open input file
* Status - File current status struct
*
* RETURN: Number of lines consumed
*
* DESCRIPTION: Step over a normal slash-star type comment
*
******************************************************************************/
static void
FlConsumeAnsiComment (
FILE *Handle,
ASL_FILE_STATUS *Status)
{
UINT8 Byte;
BOOLEAN ClosingComment = FALSE;
while (fread (&Byte, 1, 1, Handle) == 1)
{
/* Scan until comment close is found */
if (ClosingComment)
{
if (Byte == '/')
{
Status->Offset++;
return;
}
if (Byte != '*')
{
/* Reset */
ClosingComment = FALSE;
}
}
else if (Byte == '*')
{
ClosingComment = TRUE;
}
/* Maintain line count */
if (Byte == 0x0A)
{
Status->Line++;
}
Status->Offset++;
}
}
/*******************************************************************************
*
* FUNCTION: FlConsumeNewComment
*
* PARAMETERS: Handle - Open input file
* Status - File current status struct
*
* RETURN: Number of lines consumed
*
* DESCRIPTION: Step over a slash-slash type of comment
*
******************************************************************************/
static void
FlConsumeNewComment (
FILE *Handle,
ASL_FILE_STATUS *Status)
{
UINT8 Byte;
while (fread (&Byte, 1, 1, Handle) == 1)
{
Status->Offset++;
/* Comment ends at newline */
if (Byte == 0x0A)
{
Status->Line++;
return;
}
}
}
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