diff options
Diffstat (limited to 'usr/src/cmd/acpi/iasl/aslascii.c')
| -rw-r--r-- | usr/src/cmd/acpi/iasl/aslascii.c | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/usr/src/cmd/acpi/iasl/aslascii.c b/usr/src/cmd/acpi/iasl/aslascii.c new file mode 100644 index 0000000000..8a1d57dccc --- /dev/null +++ b/usr/src/cmd/acpi/iasl/aslascii.c @@ -0,0 +1,288 @@ +/****************************************************************************** + * + * 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; + } + } +} |