Package ghidra.program.database.mem

Class FileBytes

  • public class FileBytes
extends java.lang.Object
    FileBytes provides access to the all the byte values (both original and modified) from an imported file.

    • Constructor Summary

      Constructors 
      Constructor Description
      FileBytes​(ghidra.program.database.mem.FileBytesAdapter adapter, DBRecord record)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean equals​(java.lang.Object obj)  
      java.lang.String getFilename()
      Returns the name of the file that supplied the bytes.
      long getFileOffset()
      Returns the offset in the original file from where these bytes originated.
      byte getModifiedByte​(long offset)
      Returns the (possibly modified) byte at the given offset for this file bytes object.
      int getModifiedBytes​(long offset, byte[] b)
      Tries to get b.length (possibly modified) bytes from this FileBytes entry at the given offset into the file bytes.
      int getModifiedBytes​(long offset, byte[] b, int off, int length)
      Tries to get length (possibly modified) bytes from the files starting at the given offset and put them into the given byte array at the specified offset into the byte array.
      byte getOriginalByte​(long offset)
      Returns the original byte value at the given offset for this file bytes object.
      int getOriginalBytes​(long offset, byte[] b)
      Tries to get b.length original bytes from this FileBytes entry at the given offset into the file bytes.
      int getOriginalBytes​(long offset, byte[] b, int off, int length)
      Tries to get length (original) bytes from the files starting at the given offset and put them into the given byte array at the specified offset into the byte array.
      long getSize()
      Returns the number of bytes from the original source file that are stored in the database.
      int hashCode()  
      java.lang.String toString()  

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • FileBytes

        public FileBytes​(ghidra.program.database.mem.FileBytesAdapter adapter,
                 DBRecord record)
          throws java.io.IOException
        Throws:
        java.io.IOException

    • Method Detail

      • getFilename

        public java.lang.String getFilename()
        Returns the name of the file that supplied the bytes.
        Returns:
        the name of the file that supplied the bytes.

      • getFileOffset

        public long getFileOffset()
        Returns the offset in the original file from where these bytes originated. Normally this will be 0, but in the case where the program is actually a piece in some other file (e.g. tar,zip), this will be the offset into the file corresponding to the first byte in this FileBytes object.
        Returns:
        the offset in the original file from where these bytes originated.

      • getSize

        public long getSize()
        Returns the number of bytes from the original source file that are stored in the database.
        Returns:
        the number of bytes from the original source file that are stored in the database.

      • getModifiedByte

        public byte getModifiedByte​(long offset)
                     throws java.io.IOException
        Returns the (possibly modified) byte at the given offset for this file bytes object.
        Parameters:
        offset - the offset into the file bytes for the byte to retrieve.
        Returns:
        the (possibly modified) byte at the given offset for this file bytes object.
        Throws:
        java.io.IOException - if there is a problem reading the database.
        java.lang.IndexOutOfBoundsException - if the given offset is invalid.

      • getOriginalByte

        public byte getOriginalByte​(long offset)
                     throws java.io.IOException
        Returns the original byte value at the given offset for this file bytes object.
        Parameters:
        offset - the offset into the file bytes for the byte to retrieve.
        Returns:
        the original byte at the given offset for this file bytes object.
        Throws:
        java.io.IOException - if there is a problem reading the database.
        java.lang.IndexOutOfBoundsException - if the given offset is invalid.

      • getModifiedBytes

        public int getModifiedBytes​(long offset,
                            byte[] b)
                     throws java.io.IOException
        Tries to get b.length (possibly modified) bytes from this FileBytes entry at the given offset into the file bytes. May return fewer bytes if the requested length is beyond the end of the file bytes.
        Parameters:
        offset - the offset into the files bytes to start.
        b - the byte array to populate.
        Returns:
        the number of bytes actually populated.
        Throws:
        java.io.IOException - if there is an error reading from the database

      • getOriginalBytes

        public int getOriginalBytes​(long offset,
                            byte[] b)
                     throws java.io.IOException
        Tries to get b.length original bytes from this FileBytes entry at the given offset into the file bytes. May return fewer bytes if the requested length is beyond the end of the file bytes.
        Parameters:
        offset - the offset into the files bytes to start.
        b - the byte array to populate.
        Returns:
        the number of bytes actually populated.
        Throws:
        java.io.IOException - if there is an error reading from the database

      • getModifiedBytes

        public int getModifiedBytes​(long offset,
                            byte[] b,
                            int off,
                            int length)
                     throws java.io.IOException
        Tries to get length (possibly modified) bytes from the files starting at the given offset and put them into the given byte array at the specified offset into the byte array. May return fewer bytes if the requested length is beyond the end of the file bytes.
        Parameters:
        offset - the offset into the files bytes to start.
        b - the byte array to populate.
        off - the offset into the byte array.
        length - the number of bytes to get.
        Returns:
        the number of bytes actually populated.
        Throws:
        java.io.IOException - if there is an error reading from the database
        java.lang.IndexOutOfBoundsException - if the destination offset and length would exceed the size of the buffer b.

      • getOriginalBytes

        public int getOriginalBytes​(long offset,
                            byte[] b,
                            int off,
                            int length)
                     throws java.io.IOException
        Tries to get length (original) bytes from the files starting at the given offset and put them into the given byte array at the specified offset into the byte array. May return fewer bytes if the requested length is beyond the end of the file bytes.
        Parameters:
        offset - the offset into the files bytes to start.
        b - the byte array to populate.
        off - the offset into the byte array.
        length - the number of bytes to get.
        Returns:
        the number of bytes actually populated.
        Throws:
        java.io.IOException - if there is an error reading from the database
        java.lang.IndexOutOfBoundsException - if the destination offset and length would exceed the size of the buffer b.

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object

      • equals

        public boolean equals​(java.lang.Object obj)
        Overrides:
        equals in class java.lang.Object