/****************************************************************************** * * Module Name: aslsupport.l - Flex/lex scanner C support routines. * NOTE: Included into aslcompile.l, not compiled by itself. * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2022, 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. * *****************************************************************************/ /* Configuration */ #define ASL_SPACES_PER_TAB 4 #define ASL_NORMAL_CHAR 0 #define ASL_ESCAPE_SEQUENCE 1 #define ASL_OCTAL_CONSTANT 2 #define ASL_HEX_CONSTANT 3 void yyerror (char const *s) { AcpiOsPrintf ("YYERROR: %s\n", s); } /******************************************************************************* * * FUNCTION: AslParserCleanup * * Used to delete the current buffer * ******************************************************************************/ void AslParserCleanup ( void) { yy_delete_buffer (YY_CURRENT_BUFFER); } /******************************************************************************* * * FUNCTION: AslDoLineDirective * * PARAMETERS: None. Uses input() to access current source code line * * RETURN: Updates global line number and filename * * DESCRIPTION: Handle #line directives emitted by the preprocessor. * * The #line directive is emitted by the preprocesser, and is used to * pass through line numbers from the original source code file to the * preprocessor output file (.i). This allows any compiler-generated * error messages to be displayed with the correct line number. * ******************************************************************************/ static void AslDoLineDirective ( void) { int c; char *Token; UINT32 LineNumber; char *Filename; UINT32 i; AslGbl_HasIncludeFiles = TRUE; /* Eat the entire line that contains the #line directive */ AslGbl_LineBufPtr = AslGbl_CurrentLineBuffer; while ((c = input()) != '\n' && c != EOF) { *AslGbl_LineBufPtr = (char) c; AslGbl_LineBufPtr++; } *AslGbl_LineBufPtr = 0; /* First argument is the actual line number */ Token = strtok (AslGbl_CurrentLineBuffer, " "); if (!Token) { goto ResetAndExit; } /* First argument is the line number */ LineNumber = (UINT32) UtDoConstant (Token); /* Emit the appropriate number of newlines */ AslGbl_CurrentColumn = 0; if (LineNumber > AslGbl_CurrentLineNumber) { for (i = 0; i < (LineNumber - AslGbl_CurrentLineNumber); i++) { FlWriteFile (ASL_FILE_SOURCE_OUTPUT, "\n", 1); AslGbl_CurrentColumn++; } } FlSetLineNumber (LineNumber); /* Second argument is the optional filename (in double quotes) */ Token = strtok (NULL, " \""); if (Token) { Filename = UtLocalCacheCalloc (strlen (Token) + 1); strcpy (Filename, Token); FlSetFilename (Filename); } /* Third argument is not supported at this time */ ResetAndExit: /* Reset globals for a new line */ AslGbl_CurrentLineOffset += AslGbl_CurrentColumn; AslGbl_CurrentColumn = 0; AslGbl_LineBufPtr = AslGbl_CurrentLineBuffer; } /******************************************************************************* * * FUNCTION: AslPopInputFileStack * * PARAMETERS: None * * RETURN: 0 if a node was popped, -1 otherwise * * DESCRIPTION: Pop the top of the input file stack and point the parser to * the saved parse buffer contained in the fnode. Also, set the * global line counters to the saved values. This function is * called when an include file reaches EOF. * ******************************************************************************/ int AslPopInputFileStack ( void) { ASL_FILE_NODE *Fnode; AslGbl_PreviousIncludeFilename = AslGbl_Files[ASL_FILE_INPUT].Filename; Fnode = AslGbl_IncludeFileStack; DbgPrint (ASL_PARSE_OUTPUT, "\nPop InputFile Stack, Fnode %p\n", Fnode); DbgPrint (ASL_PARSE_OUTPUT, "Include: Closing \"%s\"\n\n", AslGbl_Files[ASL_FILE_INPUT].Filename); if (!Fnode) { return (-1); } /* Close the current include file */ fclose (yyin); /* Update the top-of-stack */ AslGbl_IncludeFileStack = Fnode->Next; /* Reset global line counter and filename */ AslGbl_Files[ASL_FILE_INPUT].Filename = Fnode->Filename; AslGbl_CurrentLineNumber = Fnode->CurrentLineNumber; /* Point the parser to the popped file */ yy_delete_buffer (YY_CURRENT_BUFFER); yy_switch_to_buffer (Fnode->State); /* All done with this node */ ACPI_FREE (Fnode); return (0); } /******************************************************************************* * * FUNCTION: AslPushInputFileStack * * PARAMETERS: InputFile - Open file pointer * Filename - Name of the file * * RETURN: None * * DESCRIPTION: Push the InputFile onto the file stack, and point the parser * to this file. Called when an include file is successfully * opened. * ******************************************************************************/ void AslPushInputFileStack ( FILE *InputFile, char *Filename) { ASL_FILE_NODE *Fnode; YY_BUFFER_STATE State; /* Save the current state in an Fnode */ Fnode = UtLocalCalloc (sizeof (ASL_FILE_NODE)); Fnode->File = yyin; Fnode->Next = AslGbl_IncludeFileStack; Fnode->State = YY_CURRENT_BUFFER; Fnode->Filename = AslGbl_Files[ASL_FILE_INPUT].Filename; Fnode->CurrentLineNumber = AslGbl_CurrentLineNumber; /* Push it on the stack */ AslGbl_IncludeFileStack = Fnode; /* Point the parser to this file */ State = yy_create_buffer (InputFile, YY_BUF_SIZE); yy_switch_to_buffer (State); DbgPrint (ASL_PARSE_OUTPUT, "\nPush InputFile Stack, returning %p\n\n", InputFile); /* Reset the global line count and filename */ AslGbl_Files[ASL_FILE_INPUT].Filename = UtLocalCacheCalloc (strlen (Filename) + 1); strcpy (AslGbl_Files[ASL_FILE_INPUT].Filename, Filename); AslGbl_CurrentLineNumber = 1; yyin = InputFile; /* converter: reset the comment state to STANDARD_COMMENT */ AslGbl_CommentState.CommentType = STANDARD_COMMENT; } /******************************************************************************* * * FUNCTION: AslResetCurrentLineBuffer * * PARAMETERS: None * * RETURN: None * * DESCRIPTION: Reset the Line Buffer to zero, increment global line numbers. * ******************************************************************************/ void AslResetCurrentLineBuffer ( void) { if (AslGbl_Files[ASL_FILE_SOURCE_OUTPUT].Handle) { FlWriteFile (ASL_FILE_SOURCE_OUTPUT, AslGbl_CurrentLineBuffer, AslGbl_LineBufPtr - AslGbl_CurrentLineBuffer); } AslGbl_CurrentLineOffset += AslGbl_CurrentColumn; AslGbl_CurrentColumn = 0; AslGbl_CurrentLineNumber++; AslGbl_LogicalLineNumber++; AslGbl_LineBufPtr = AslGbl_CurrentLineBuffer; } /******************************************************************************* * * FUNCTION: AslInsertLineBuffer * * PARAMETERS: SourceChar - One char from the input ASL source file * * RETURN: None * * DESCRIPTION: Put one character of the source file into the temp line buffer * ******************************************************************************/ void AslInsertLineBuffer ( int SourceChar) { UINT32 i; UINT32 Count = 1; if (SourceChar == EOF) { return; } AslGbl_InputByteCount++; /* Handle tabs. Convert to spaces */ if (SourceChar == '\t') { SourceChar = ' '; Count = ASL_SPACES_PER_TAB - (AslGbl_CurrentColumn & (ASL_SPACES_PER_TAB-1)); } for (i = 0; i < Count; i++) { AslGbl_CurrentColumn++; /* Insert the character into the line buffer */ *AslGbl_LineBufPtr = (UINT8) SourceChar; AslGbl_LineBufPtr++; if (AslGbl_LineBufPtr > (AslGbl_CurrentLineBuffer + (AslGbl_LineBufferSize - 1))) { #if 0 /* * Warning if we have split a long source line. * */ sprintf (MsgBuffer, "Max %u", AslGbl_LineBufferSize); AslCommonError (ASL_WARNING, ASL_MSG_LONG_LINE, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, MsgBuffer); #endif AslResetCurrentLineBuffer (); } else if (SourceChar == '\n') { /* End of line */ AslResetCurrentLineBuffer (); } if (AcpiGbl_CaptureComments) { CvProcessCommentState ((char) SourceChar); } } } /******************************************************************************* * * FUNCTION: count * * PARAMETERS: yytext - Contains the matched keyword. * Type - Keyword/Character type: * 0 = anything except a keyword * 1 = pseudo-keywords * 2 = non-executable ASL keywords * 3 = executable ASL keywords * * RETURN: None * * DESCRIPTION: Count keywords and put them into the line buffer * ******************************************************************************/ static void count ( int Type) { char *p; switch (Type) { case 2: ++AslGbl_TotalKeywords; ++AslGbl_TotalNamedObjects; ++AslGbl_FilesList->TotalKeywords; ++AslGbl_FilesList->TotalNamedObjects; break; case 3: ++AslGbl_TotalKeywords; ++AslGbl_TotalExecutableOpcodes; ++AslGbl_FilesList->TotalKeywords; ++AslGbl_FilesList->TotalExecutableOpcodes; break; default: break; } for (p = yytext; *p != '\0'; p++) { AslInsertLineBuffer (*p); *AslGbl_LineBufPtr = 0; } } /******************************************************************************* * * FUNCTION: AslDoComment * * PARAMETERS: none * * RETURN: none * * DESCRIPTION: Process a standard comment. * ******************************************************************************/ static BOOLEAN AslDoComment ( void) { int c; int c1 = 0; char *StringBuffer = AslGbl_MsgBuffer; char *EndBuffer = AslGbl_MsgBuffer + ASL_MSG_BUFFER_SIZE; ASL_COMMENT_STATE CurrentState = AslGbl_CommentState; /* to reference later on */ AslInsertLineBuffer ('/'); AslInsertLineBuffer ('*'); if (AcpiGbl_CaptureComments && CurrentState.CaptureComments) { *StringBuffer = '/'; ++StringBuffer; *StringBuffer = '*'; ++StringBuffer; } loop: /* Eat chars until end-of-comment */ while (((c = input ()) != '*') && (c != EOF)) { AslInsertLineBuffer (c); if (AcpiGbl_CaptureComments && CurrentState.CaptureComments) { *StringBuffer = (char) c; ++StringBuffer; } c1 = c; } if (c == EOF) { goto EarlyEOF; } /* * Check for nested comment -- can help catch cases where a previous * comment was accidentally left unterminated */ if ((c1 == '/') && (c == '*')) { AslCommonError (ASL_WARNING, ASL_MSG_NESTED_COMMENT, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_InputByteCount, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, NULL); } /* Comment is closed only if the NEXT character is a slash */ AslInsertLineBuffer (c); if (AcpiGbl_CaptureComments && CurrentState.CaptureComments) { *StringBuffer = (char) c; ++StringBuffer; } if (((c1 = input ()) != '/') && (c1 != EOF)) { unput (c1); goto loop; } if (c1 == EOF) { goto EarlyEOF; } if (StringBuffer > EndBuffer) { goto BufferOverflow; } AslInsertLineBuffer (c1); CvProcessComment (CurrentState, StringBuffer, c1); return (TRUE); EarlyEOF: /* * Premature End-Of-File */ AslCommonError (ASL_ERROR, ASL_MSG_EARLY_EOF, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, NULL); return (FALSE); BufferOverflow: /* Comment was too long */ AslCommonError (ASL_ERROR, ASL_MSG_STRING_LENGTH, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, "Max length 4096"); return (FALSE); } /******************************************************************************* * * FUNCTION: AslDoCommentType2 * * PARAMETERS: none * * RETURN: none * * DESCRIPTION: Process a new "//" comment. Inline comments will be converted * to "/ *" standard comments. * ******************************************************************************/ static BOOLEAN AslDoCommentType2 ( void) { int c; char *StringBuffer = AslGbl_MsgBuffer; char *EndBuffer = AslGbl_MsgBuffer + ASL_MSG_BUFFER_SIZE; ASL_COMMENT_STATE CurrentState = AslGbl_CommentState; AslInsertLineBuffer ('/'); if (AcpiGbl_CaptureComments && CurrentState.CaptureComments) { AslInsertLineBuffer ('*'); *StringBuffer = '/'; ++StringBuffer; *StringBuffer = '*'; ++StringBuffer; } else { AslInsertLineBuffer ('/'); } while (((c = input ()) != '\n') && (c != EOF)) { AslInsertLineBuffer (c); if (AcpiGbl_CaptureComments && CurrentState.CaptureComments) { *StringBuffer = (char) c; ++StringBuffer; } } if (c == EOF) { /* End of file is OK, change to newline. Let parser detect EOF later */ c = '\n'; } if (StringBuffer > EndBuffer) { goto BufferOverflow; } AslInsertLineBuffer (c); CvProcessCommentType2 (CurrentState, StringBuffer); return (TRUE); BufferOverflow: /* Comment was too long */ AslCommonError (ASL_ERROR, ASL_MSG_STRING_LENGTH, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, "Max length 4096"); return (FALSE); } /******************************************************************************* * * FUNCTION: AslDoStringLiteral * * PARAMETERS: none * * RETURN: none * * DESCRIPTION: Process a string literal (surrounded by quotes) * ******************************************************************************/ static char AslDoStringLiteral ( void) { char *StringBuffer = AslGbl_MsgBuffer; char *EndBuffer = AslGbl_MsgBuffer + ASL_MSG_BUFFER_SIZE; char *CleanString; int StringChar; UINT32 State = ASL_NORMAL_CHAR; UINT32 i = 0; UINT8 Digit; char ConvertBuffer[4]; /* * Eat chars until end-of-literal. * NOTE: Put back the original surrounding quotes into the * source line buffer. */ AslInsertLineBuffer ('\"'); while ((StringChar = input()) != EOF) { AslInsertLineBuffer (StringChar); DoCharacter: switch (State) { case ASL_NORMAL_CHAR: switch (StringChar) { case '\\': /* * Special handling for backslash-escape sequence. We will * toss the backslash and translate the escape char(s). */ State = ASL_ESCAPE_SEQUENCE; continue; case '\"': /* String terminator */ goto CompletedString; default: break; } break; case ASL_ESCAPE_SEQUENCE: State = ASL_NORMAL_CHAR; switch (StringChar) { case 'a': StringChar = 0x07; /* BELL */ break; case 'b': StringChar = 0x08; /* BACKSPACE */ break; case 'f': StringChar = 0x0C; /* FORMFEED */ break; case 'n': StringChar = 0x0A; /* LINEFEED */ break; case 'r': StringChar = 0x0D; /* CARRIAGE RETURN*/ break; case 't': StringChar = 0x09; /* HORIZONTAL TAB */ break; case 'v': StringChar = 0x0B; /* VERTICAL TAB */ break; case 'x': State = ASL_HEX_CONSTANT; i = 0; continue; case '\'': /* Single Quote */ case '\"': /* Double Quote */ case '\\': /* Backslash */ break; default: /* Check for an octal digit (0-7) */ if (ACPI_IS_OCTAL_DIGIT (StringChar)) { State = ASL_OCTAL_CONSTANT; ConvertBuffer[0] = (char) StringChar; i = 1; continue; } /* Unknown escape sequence issue warning, but use the character */ AslCommonError (ASL_WARNING, ASL_MSG_INVALID_ESCAPE, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, NULL); break; } break; case ASL_OCTAL_CONSTANT: /* Up to three octal digits allowed */ if (!ACPI_IS_OCTAL_DIGIT (StringChar) || (i > 2)) { /* * Reached end of the constant. Convert the assembled ASCII * string and resume processing of the next character */ ConvertBuffer[i] = 0; Digit = (UINT8) strtoul (ConvertBuffer, NULL, 8); /* Check for NULL or non-ascii character (ignore if so) */ if ((Digit == 0) || (Digit > ACPI_ASCII_MAX)) { AslCommonError (ASL_WARNING, ASL_MSG_INVALID_STRING, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, NULL); } else { *StringBuffer = (char) Digit; StringBuffer++; if (StringBuffer >= EndBuffer) { goto BufferOverflow; } } State = ASL_NORMAL_CHAR; goto DoCharacter; break; } /* Append another digit of the constant */ ConvertBuffer[i] = (char) StringChar; i++; continue; case ASL_HEX_CONSTANT: /* Up to two hex digits allowed */ if (!isxdigit (StringChar) || (i > 1)) { /* * Reached end of the constant. Convert the assembled ASCII * string and resume processing of the next character */ ConvertBuffer[i] = 0; Digit = (UINT8) strtoul (ConvertBuffer, NULL, 16); /* Check for NULL or non-ascii character (ignore if so) */ if ((Digit == 0) || (Digit > ACPI_ASCII_MAX)) { AslCommonError (ASL_WARNING, ASL_MSG_INVALID_STRING, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, NULL); } else { *StringBuffer = (char) Digit; StringBuffer++; if (StringBuffer >= EndBuffer) { goto BufferOverflow; } } State = ASL_NORMAL_CHAR; goto DoCharacter; break; } /* Append another digit of the constant */ ConvertBuffer[i] = (char) StringChar; i++; continue; default: break; } /* Save the finished character */ *StringBuffer = (char) StringChar; StringBuffer++; if (StringBuffer >= EndBuffer) { goto BufferOverflow; } } /* * Premature End-Of-File */ AslCommonError (ASL_ERROR, ASL_MSG_EARLY_EOF, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, NULL); return (FALSE); CompletedString: /* * Null terminate the input string and copy string to a new buffer */ *StringBuffer = 0; CleanString = UtLocalCacheCalloc (strlen (AslGbl_MsgBuffer) + 1); strcpy (CleanString, AslGbl_MsgBuffer); AslCompilerlval.s = CleanString; return (TRUE); BufferOverflow: /* Literal was too long */ AslCommonError (ASL_ERROR, ASL_MSG_STRING_LENGTH, AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber, AslGbl_CurrentLineOffset, AslGbl_CurrentColumn, AslGbl_Files[ASL_FILE_INPUT].Filename, "Max length 4096"); return (FALSE); }