1 /******************************************************************************
3 * Module Name: aslfileio - File I/O support
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2014, Intel Corp.
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12 * modification, are permitted provided that the following conditions
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20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
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23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
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44 #include "aslcompiler.h"
47 #define _COMPONENT ACPI_COMPILER
48 ACPI_MODULE_NAME ("aslfileio")
51 /*******************************************************************************
53 * FUNCTION: FlFileError
55 * PARAMETERS: FileId - Index into file info array
56 * ErrorId - Index into error message array
60 * DESCRIPTION: Decode errno to an error message and add the entire error
63 ******************************************************************************/
71 sprintf (MsgBuffer, "\"%s\" (%s)", Gbl_Files[FileId].Filename,
73 AslCommonError (ASL_ERROR, ErrorId, 0, 0, 0, 0, NULL, MsgBuffer);
77 /*******************************************************************************
79 * FUNCTION: FlOpenFile
81 * PARAMETERS: FileId - Index into file info array
82 * Filename - file pathname to open
83 * Mode - Open mode for fopen
87 * DESCRIPTION: Open a file.
88 * NOTE: Aborts compiler on any error.
90 ******************************************************************************/
101 File = fopen (Filename, Mode);
104 FlFileError (FileId, ASL_MSG_OPEN);
108 Gbl_Files[FileId].Filename = Filename;
109 Gbl_Files[FileId].Handle = File;
113 /*******************************************************************************
115 * FUNCTION: FlGetFileSize
117 * PARAMETERS: FileId - Index into file info array
121 * DESCRIPTION: Get current file size. Uses common seek-to-EOF function.
122 * File must be open. Aborts compiler on error.
124 ******************************************************************************/
133 FileSize = CmGetFileSize (Gbl_Files[FileId].Handle);
134 if (FileSize == ACPI_UINT32_MAX)
143 /*******************************************************************************
145 * FUNCTION: FlReadFile
147 * PARAMETERS: FileId - Index into file info array
148 * Buffer - Where to place the data
149 * Length - Amount to read
151 * RETURN: Status. AE_ERROR indicates EOF.
153 * DESCRIPTION: Read data from an open file.
154 * NOTE: Aborts compiler on any error.
156 ******************************************************************************/
167 /* Read and check for error */
169 Actual = fread (Buffer, 1, Length, Gbl_Files[FileId].Handle);
172 if (feof (Gbl_Files[FileId].Handle))
174 /* End-of-file, just return error */
179 FlFileError (FileId, ASL_MSG_READ);
187 /*******************************************************************************
189 * FUNCTION: FlWriteFile
191 * PARAMETERS: FileId - Index into file info array
192 * Buffer - Data to write
193 * Length - Amount of data to write
197 * DESCRIPTION: Write data to an open file.
198 * NOTE: Aborts compiler on any error.
200 ******************************************************************************/
211 /* Write and check for error */
213 Actual = fwrite ((char *) Buffer, 1, Length, Gbl_Files[FileId].Handle);
214 if (Actual != Length)
216 FlFileError (FileId, ASL_MSG_WRITE);
222 /*******************************************************************************
224 * FUNCTION: FlPrintFile
226 * PARAMETERS: FileId - Index into file info array
227 * Format - Printf format string
228 * ... - Printf arguments
232 * DESCRIPTION: Formatted write to an open file.
233 * NOTE: Aborts compiler on any error.
235 ******************************************************************************/
247 va_start (Args, Format);
249 Actual = vfprintf (Gbl_Files[FileId].Handle, Format, Args);
254 FlFileError (FileId, ASL_MSG_WRITE);
260 /*******************************************************************************
262 * FUNCTION: FlSeekFile
264 * PARAMETERS: FileId - Index into file info array
265 * Offset - Absolute byte offset in file
269 * DESCRIPTION: Seek to absolute offset.
270 * NOTE: Aborts compiler on any error.
272 ******************************************************************************/
282 Error = fseek (Gbl_Files[FileId].Handle, Offset, SEEK_SET);
285 FlFileError (FileId, ASL_MSG_SEEK);
291 /*******************************************************************************
293 * FUNCTION: FlCloseFile
295 * PARAMETERS: FileId - Index into file info array
299 * DESCRIPTION: Close an open file. Aborts compiler on error
301 ******************************************************************************/
310 if (!Gbl_Files[FileId].Handle)
315 Error = fclose (Gbl_Files[FileId].Handle);
318 FlFileError (FileId, ASL_MSG_CLOSE);
322 Gbl_Files[FileId].Handle = NULL;
327 /*******************************************************************************
329 * FUNCTION: FlDeleteFile
331 * PARAMETERS: FileId - Index into file info array
335 * DESCRIPTION: Delete a file.
337 ******************************************************************************/
343 ASL_FILE_INFO *Info = &Gbl_Files[FileId];
351 if (remove (Info->Filename))
353 printf ("%s (%s file) ",
354 Info->Filename, Info->Description);
355 perror ("Could not delete");
358 Info->Filename = NULL;