asfile.c

acpi tools for linux include acpiexec and acpixtract

        for (i = 0; MacroTable[i].Identifier; i++)
        {
            AsRemoveMacro (FileBuffer, MacroTable[i].Identifier);
        }
    }

    if (StructTable)
    {
        for (i = 0; StructTable[i].Identifier; i++)
        {
            AsInsertPrefix (FileBuffer, StructTable[i].Identifier, StructTable[i].Type);
        }
    }

    /* Process the function table */

    for (i = 0; i < 32; i++)
    {
        /* Decode the function bitmap */

        switch ((1 << i) & Functions)
        {
        case 0:
            /* This function not configured */
            break;


        case CVT_COUNT_TABS:

            AsCountTabs (FileBuffer, Filename);
            break;


        case CVT_COUNT_NON_ANSI_COMMENTS:

            AsCountNonAnsiComments (FileBuffer, Filename);
            break;


        case CVT_CHECK_BRACES:

            AsCheckForBraces (FileBuffer, Filename);
            break;


        case CVT_TRIM_LINES:

            AsTrimLines (FileBuffer, Filename);
            break;


        case CVT_COUNT_LINES:

            AsCountSourceLines (FileBuffer, Filename);
            break;


        case CVT_BRACES_ON_SAME_LINE:

            AsBracesOnSameLine (FileBuffer);
            break;


        case CVT_MIXED_CASE_TO_UNDERSCORES:

            AsMixedCaseToUnderscores (FileBuffer);
            break;


        case CVT_LOWER_CASE_IDENTIFIERS:

            AsLowerCaseIdentifiers (FileBuffer);
            break;


        case CVT_REMOVE_DEBUG_MACROS:

            AsRemoveDebugMacros (FileBuffer);
            break;


        case CVT_TRIM_WHITESPACE:

            AsTrimWhitespace (FileBuffer);
            break;


        case CVT_REMOVE_EMPTY_BLOCKS:

            AsRemoveEmptyBlocks (FileBuffer, Filename);
            break;


        case CVT_REDUCE_TYPEDEFS:

            AsReduceTypedefs (FileBuffer, "typedef union");
            AsReduceTypedefs (FileBuffer, "typedef struct");
            break;


        case CVT_SPACES_TO_TABS4:

            AsTabify4 (FileBuffer);
            break;


        case CVT_SPACES_TO_TABS8:

            AsTabify8 (FileBuffer);
            break;

        case CVT_COUNT_SHORTMULTILINE_COMMENTS:

#ifdef ACPI_FUTURE_IMPLEMENTATION
            AsTrimComments (FileBuffer, Filename);
#endif
            break;

        default:

            printf ("Unknown conversion subfunction opcode\n");
            break;
        }
    }

    if (ConversionTable->NewHeader)
    {
        AsReplaceHeader (FileBuffer, ConversionTable->NewHeader);
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsProcessOneFile
 *
 * DESCRIPTION: Process one source file.  The file is opened, read entirely
 *              into a buffer, converted, then written to a new file.
 *
 ******************************************************************************/

ACPI_NATIVE_INT
AsProcessOneFile (
    ACPI_CONVERSION_TABLE   *ConversionTable,
    char                    *SourcePath,
    char                    *TargetPath,
    int                     MaxPathLength,
    char                    *Filename,
    ACPI_NATIVE_INT         FileType)
{
    char                    *Pathname;
    char                    *OutPathname = NULL;


    Gbl_HeaderSize = LINES_IN_LEGAL_HEADER; /* Normal C file and H header */
    if (strstr (Filename, ".asl"))
    {
        Gbl_HeaderSize = 29; /* Lines in default ASL header */
    }

    /* Allocate a file pathname buffer for both source and target */

    Pathname = calloc (MaxPathLength + strlen (Filename) + 2, 1);
    if (!Pathname)
    {
        printf ("Could not allocate buffer for file pathnames\n");
        return -1;
    }

    Gbl_FileType = FileType;

    /* Generate the source pathname and read the file */

    if (SourcePath)
    {
        strcpy (Pathname, SourcePath);
        strcat (Pathname, "/");
    }

    strcat (Pathname, Filename);

    if (AsGetFile (Pathname, &Gbl_FileBuffer, &Gbl_FileSize))
    {
        return -1;
    }

    /* Process the file in the buffer */

    Gbl_MadeChanges = FALSE;
    if (!Gbl_IgnoreLoneLineFeeds && Gbl_HasLoneLineFeeds)
    {
        /*
         * All lone LFs will be converted to CR/LF
         * (when file is written, Windows version only)
         */
        printf ("Converting lone linefeeds\n");
        Gbl_MadeChanges = TRUE;
    }

    AsConvertFile (ConversionTable, Gbl_FileBuffer, Pathname, FileType);

    if (!(ConversionTable->Flags & FLG_NO_FILE_OUTPUT))
    {
        if (!(Gbl_Overwrite && !Gbl_MadeChanges))
        {
            /* Generate the target pathname and write the file */

            OutPathname = calloc (MaxPathLength + strlen (Filename) + 2 + strlen (TargetPath), 1);
            if (!OutPathname)
            {
                printf ("Could not allocate buffer for file pathnames\n");
                return -1;
            }

            strcpy (OutPathname, TargetPath);
            if (SourcePath)
            {
                strcat (OutPathname, "/");
                strcat (OutPathname, Filename);
            }

            AsPutFile (OutPathname, Gbl_FileBuffer, ConversionTable->Flags);
        }
    }

    free (Gbl_FileBuffer);
    free (Pathname);
    if (OutPathname)
    {
        free (OutPathname);
    }

    return 0;
}


/******************************************************************************
 *
 * FUNCTION:    AsCheckForDirectory
 *
 * DESCRIPTION: Check if the current file is a valid directory.  If not,
 *              construct the full pathname for the source and target paths.
 *              Checks for the dot and dot-dot files (they are ignored)
 *
 ******************************************************************************/

ACPI_NATIVE_INT
AsCheckForDirectory (
    char                    *SourceDirPath,
    char                    *TargetDirPath,
    char                    *Filename,
    char                    **SourcePath,
    char                    **TargetPath)
{
    char                    *SrcPath;
    char                    *TgtPath;


    if (!(strcmp (Filename, ".")) ||
        !(strcmp (Filename, "..")))
    {
        return -1;
    }

    SrcPath = calloc (strlen (SourceDirPath) + strlen (Filename) + 2, 1);
    if (!SrcPath)
    {
        printf ("Could not allocate buffer for directory source pathname\n");
        return -1;
    }

    TgtPath = calloc (strlen (TargetDirPath) + strlen (Filename) + 2, 1);
    if (!TgtPath)
    {
        printf ("Could not allocate buffer for directory target pathname\n");
        free (SrcPath);
        return -1;
    }

    strcpy (SrcPath, SourceDirPath);
    strcat (SrcPath, "/");
    strcat (SrcPath, Filename);

    strcpy (TgtPath, TargetDirPath);
    strcat (TgtPath, "/");
    strcat (TgtPath, Filename);

    *SourcePath = SrcPath;
    *TargetPath = TgtPath;
    return 0;
}


/******************************************************************************
 *
 * FUNCTION:    AsGetFile
 *
 * DESCRIPTION: Open a file and read it entirely into a an allocated buffer
 *
 ******************************************************************************/

int
AsGetFile (
    char                    *Filename,
    char                    **FileBuffer,
    UINT32                  *FileSize)
{

    int                     FileHandle;
    UINT32                  Size;
    char                    *Buffer;


    /* Binary mode leaves CR/LF pairs */

    FileHandle = open (Filename, O_BINARY | O_RDONLY);
    if (!FileHandle)
    {
        printf ("Could not open %s\n", Filename);
        return -1;
    }

    if (fstat (FileHandle, &Gbl_StatBuf))
    {
        printf ("Could not get file status for %s\n", Filename);
        goto ErrorExit;
    }

    /*
     * Create a buffer for the entire file
     * Add plenty extra buffer to accomodate string replacements
     */
    Size = Gbl_StatBuf.st_size;
    Buffer = calloc (Size * 2, 1);
    if (!Buffer)
    {
        printf ("Could not allocate buffer of size %d\n", Size * 2);
        goto ErrorExit;
    }

    /* Read the entire file */

    Size = read (FileHandle, Buffer, Size);
    if (Size == -1)
    {
        printf ("Could not read the input file %s\n", Filename);
        goto ErrorExit;
    }

    Buffer [Size] = 0;         /* Null terminate the buffer */
    close (FileHandle);

    /* Check for unix contamination */

    Gbl_HasLoneLineFeeds = AsDetectLoneLineFeeds (Filename, Buffer);

    /*
     * Convert all CR/LF pairs to LF only.  We do this locally so that
     * this code is portable across operating systems.
     */
    AsConvertToLineFeeds (Buffer);

    *FileBuffer = Buffer;
    *FileSize = Size;

    return 0;


ErrorExit:

    close (FileHandle);
    return -1;
}


/******************************************************************************
 *
 * FUNCTION:    AsPutFile
 *
 * DESCRIPTION: Create a new output file and write the entire contents of the
 *              buffer to the new file.  Buffer must be a zero terminated string
 *
 ******************************************************************************/

int
AsPutFile (
    char                    *Pathname,
    char                    *FileBuffer,
    UINT32                  SystemFlags)
{
    UINT32                  FileSize;
    int                     DestHandle;
    int                     OpenFlags;


    /* Create the target file */

    OpenFlags = O_TRUNC | O_CREAT | O_WRONLY | O_BINARY;

    if (!(SystemFlags & FLG_NO_CARRIAGE_RETURNS))
    {
        /* Put back the CR before each LF */

        AsInsertCarriageReturns (FileBuffer);
    }

    DestHandle = open (Pathname, OpenFlags, S_IREAD | S_IWRITE);
    if (DestHandle == -1)
    {
        perror ("Could not create destination file");
        printf ("Could not create destination file \"%s\"\n", Pathname);
        return -1;
    }

    /* Write the buffer to the file */

    FileSize = strlen (FileBuffer);
    write (DestHandle, FileBuffer, FileSize);

    close (DestHandle);

    return 0;
}