/****************************************************************************** * * Module Name: aslfileio - File I/O support * *****************************************************************************/ /* * Copyright (C) 2000 - 2013, 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 #define _COMPONENT ACPI_COMPILER ACPI_MODULE_NAME ("aslfileio") /******************************************************************************* * * FUNCTION: AslAbort * * PARAMETERS: None * * RETURN: None * * DESCRIPTION: Dump the error log and abort the compiler. Used for serious * I/O errors. * ******************************************************************************/ void AslAbort ( void) { AePrintErrorLog (ASL_FILE_STDERR); if (Gbl_DebugFlag) { /* Print error summary to stdout also */ AePrintErrorLog (ASL_FILE_STDOUT); } exit (1); } /******************************************************************************* * * FUNCTION: FlFileError * * PARAMETERS: FileId - Index into file info array * ErrorId - Index into error message array * * RETURN: None * * DESCRIPTION: Decode errno to an error message and add the entire error * to the error log. * ******************************************************************************/ void FlFileError ( UINT32 FileId, UINT8 ErrorId) { sprintf (MsgBuffer, "\"%s\" (%s)", Gbl_Files[FileId].Filename, strerror (errno)); AslCommonError (ASL_ERROR, ErrorId, 0, 0, 0, 0, NULL, MsgBuffer); } /******************************************************************************* * * FUNCTION: FlOpenFile * * PARAMETERS: FileId - Index into file info array * Filename - file pathname to open * Mode - Open mode for fopen * * RETURN: None * * DESCRIPTION: Open a file. * NOTE: Aborts compiler on any error. * ******************************************************************************/ void FlOpenFile ( UINT32 FileId, char *Filename, char *Mode) { FILE *File; File = fopen (Filename, Mode); if (!File) { FlFileError (FileId, ASL_MSG_OPEN); AslAbort (); } Gbl_Files[FileId].Filename = Filename; Gbl_Files[FileId].Handle = File; } /******************************************************************************* * * FUNCTION: FlGetFileSize * * PARAMETERS: FileId - Index into file info array * * RETURN: File Size * * DESCRIPTION: Get current file size. Uses seek-to-EOF. File must be open. * ******************************************************************************/ UINT32 FlGetFileSize ( UINT32 FileId) { FILE *fp; UINT32 FileSize; long Offset; fp = Gbl_Files[FileId].Handle; Offset = ftell (fp); fseek (fp, 0, SEEK_END); FileSize = (UINT32) ftell (fp); /* Restore file pointer */ fseek (fp, Offset, SEEK_SET); return (FileSize); } /******************************************************************************* * * FUNCTION: FlReadFile * * PARAMETERS: FileId - Index into file info array * Buffer - Where to place the data * Length - Amount to read * * RETURN: Status. AE_ERROR indicates EOF. * * DESCRIPTION: Read data from an open file. * NOTE: Aborts compiler on any error. * ******************************************************************************/ ACPI_STATUS FlReadFile ( UINT32 FileId, void *Buffer, UINT32 Length) { UINT32 Actual; /* Read and check for error */ Actual = fread (Buffer, 1, Length, Gbl_Files[FileId].Handle); if (Actual < Length) { if (feof (Gbl_Files[FileId].Handle)) { /* End-of-file, just return error */ return (AE_ERROR); } FlFileError (FileId, ASL_MSG_READ); AslAbort (); } return (AE_OK); } /******************************************************************************* * * FUNCTION: FlWriteFile * * PARAMETERS: FileId - Index into file info array * Buffer - Data to write * Length - Amount of data to write * * RETURN: None * * DESCRIPTION: Write data to an open file. * NOTE: Aborts compiler on any error. * ******************************************************************************/ void FlWriteFile ( UINT32 FileId, void *Buffer, UINT32 Length) { UINT32 Actual; /* Write and check for error */ Actual = fwrite ((char *) Buffer, 1, Length, Gbl_Files[FileId].Handle); if (Actual != Length) { FlFileError (FileId, ASL_MSG_WRITE); AslAbort (); } } /******************************************************************************* * * FUNCTION: FlPrintFile * * PARAMETERS: FileId - Index into file info array * Format - Printf format string * ... - Printf arguments * * RETURN: None * * DESCRIPTION: Formatted write to an open file. * NOTE: Aborts compiler on any error. * ******************************************************************************/ void FlPrintFile ( UINT32 FileId, char *Format, ...) { INT32 Actual; va_list Args; va_start (Args, Format); Actual = vfprintf (Gbl_Files[FileId].Handle, Format, Args); va_end (Args); if (Actual == -1) { FlFileError (FileId, ASL_MSG_WRITE); AslAbort (); } } /******************************************************************************* * * FUNCTION: FlSeekFile * * PARAMETERS: FileId - Index into file info array * Offset - Absolute byte offset in file * * RETURN: None * * DESCRIPTION: Seek to absolute offset. * NOTE: Aborts compiler on any error. * ******************************************************************************/ void FlSeekFile ( UINT32 FileId, long Offset) { int Error; Error = fseek (Gbl_Files[FileId].Handle, Offset, SEEK_SET); if (Error) { FlFileError (FileId, ASL_MSG_SEEK); AslAbort (); } } /******************************************************************************* * * FUNCTION: FlCloseFile * * PARAMETERS: FileId - Index into file info array * * RETURN: None * * DESCRIPTION: Close an open file. Aborts compiler on error * ******************************************************************************/ void FlCloseFile ( UINT32 FileId) { int Error; if (!Gbl_Files[FileId].Handle) { return; } Error = fclose (Gbl_Files[FileId].Handle); if (Error) { FlFileError (FileId, ASL_MSG_CLOSE); AslAbort (); } Gbl_Files[FileId].Handle = NULL; return; } /******************************************************************************* * * FUNCTION: FlDeleteFile * * PARAMETERS: FileId - Index into file info array * * RETURN: None * * DESCRIPTION: Delete a file. * ******************************************************************************/ void FlDeleteFile ( UINT32 FileId) { ASL_FILE_INFO *Info = &Gbl_Files[FileId]; if (!Info->Filename) { return; } if (remove (Info->Filename)) { printf ("%s (%s file) ", Info->Filename, Info->Description); perror ("Could not delete"); } Info->Filename = NULL; return; }