| /****************************************************************************** |
| * |
| * Module Name: aslascii - ASCII detection and support routines |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2016, Intel Corp. |
| * All rights reserved. |
| * |
| * 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. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * 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 MERCHANTIBILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. |
| */ |
| |
| #include "aslcompiler.h" |
| #include <actables.h> |
| #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; |
| 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); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * 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; |
| } |
| } |
| } |
