Class: Exerb::Win32::Struct::ImageDosHeader

Inherits:
Base
  • Object
show all
Defined in:
lib/exerb/win32/struct/image_dos_header.rb

Overview

#

Constant Summary collapse

FORMAT = 
'SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSL'
SIGNATURE = 
0x5A4D

Instance Attribute Summary collapse

Attributes inherited from Base

#position

Instance Method Summary collapse

Methods inherited from Base

read, #read, #size, #update

Constructor Details

#initialize ⇒ ImageDosHeader

Returns a new instance of ImageDosHeader.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 24

def initialize
  @magic                       = 0
  @last_page_size              = 0
  @total_pages_in_file         = 0
  @relocation_items            = 0
  @paragraphs_in_header        = 0
  @minimum_extra_paragraphs    = 0
  @maximum_extra_paragraphs    = 0
  @initial_stack_segment       = 0
  @initial_stack_pointer       = 0
  @complemented_checksum       = 0
  @initial_instraction_pointer = 0
  @initial_code_segment        = 0
  @relocation_table_offset     = 0
  @overlay_number              = 0
  @reserved1_1                 = 0
  @reserved1_2                 = 0
  @reserved1_3                 = 0
  @reserved1_4                 = 0
  @oem_identifier              = 0
  @oem_information             = 0
  @reserved2_1                 = 0
  @reserved2_2                 = 0
  @reserved2_3                 = 0
  @reserved2_4                 = 0
  @reserved2_5                 = 0
  @reserved2_6                 = 0
  @reserved2_7                 = 0
  @reserved2_8                 = 0
  @reserved2_9                 = 0
  @reserved2_10                = 0
  @offset_to_new_header        = 0
end

Instance Attribute Details

#complemented_checksum ⇒ Object

Returns the value of attribute complemented_checksum.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def complemented_checksum
  @complemented_checksum
end

#initial_code_segment ⇒ Object

Returns the value of attribute initial_code_segment.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def initial_code_segment
  @initial_code_segment
end

#initial_instraction_pointer ⇒ Object

Returns the value of attribute initial_instraction_pointer.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def initial_instraction_pointer
  @initial_instraction_pointer
end

#initial_stack_pointer ⇒ Object

Returns the value of attribute initial_stack_pointer.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def initial_stack_pointer
  @initial_stack_pointer
end

#initial_stack_segment ⇒ Object

Returns the value of attribute initial_stack_segment.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def initial_stack_segment
  @initial_stack_segment
end

#last_page_size ⇒ Object

Returns the value of attribute last_page_size.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def last_page_size
  @last_page_size
end

#magic ⇒ Object

Returns the value of attribute magic.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def magic
  @magic
end

#maximum_extra_paragraphs ⇒ Object

Returns the value of attribute maximum_extra_paragraphs.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def maximum_extra_paragraphs
  @maximum_extra_paragraphs
end

#minimum_extra_paragraphs ⇒ Object

Returns the value of attribute minimum_extra_paragraphs.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def minimum_extra_paragraphs
  @minimum_extra_paragraphs
end

#oem_identifier ⇒ Object

Returns the value of attribute oem_identifier.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def oem_identifier
  @oem_identifier
end

#oem_information ⇒ Object

Returns the value of attribute oem_information.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def oem_information
  @oem_information
end

#offset_to_new_header ⇒ Object

Returns the value of attribute offset_to_new_header.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def offset_to_new_header
  @offset_to_new_header
end

#overlay_number ⇒ Object

Returns the value of attribute overlay_number.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def overlay_number
  @overlay_number
end

#paragraphs_in_header ⇒ Object

Returns the value of attribute paragraphs_in_header.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def paragraphs_in_header
  @paragraphs_in_header
end

#relocation_items ⇒ Object

Returns the value of attribute relocation_items.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def relocation_items
  @relocation_items
end

#relocation_table_offset ⇒ Object

Returns the value of attribute relocation_table_offset.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def relocation_table_offset
  @relocation_table_offset
end

#reserved1_1 ⇒ Object

Returns the value of attribute reserved1_1.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved1_1
  @reserved1_1
end

#reserved1_2 ⇒ Object

Returns the value of attribute reserved1_2.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved1_2
  @reserved1_2
end

#reserved1_3 ⇒ Object

Returns the value of attribute reserved1_3.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved1_3
  @reserved1_3
end

#reserved1_4 ⇒ Object

Returns the value of attribute reserved1_4.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved1_4
  @reserved1_4
end

#reserved2_1 ⇒ Object

Returns the value of attribute reserved2_1.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_1
  @reserved2_1
end

#reserved2_10 ⇒ Object

Returns the value of attribute reserved2_10.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_10
  @reserved2_10
end

#reserved2_2 ⇒ Object

Returns the value of attribute reserved2_2.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_2
  @reserved2_2
end

#reserved2_3 ⇒ Object

Returns the value of attribute reserved2_3.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_3
  @reserved2_3
end

#reserved2_4 ⇒ Object

Returns the value of attribute reserved2_4.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_4
  @reserved2_4
end

#reserved2_5 ⇒ Object

Returns the value of attribute reserved2_5.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_5
  @reserved2_5
end

#reserved2_6 ⇒ Object

Returns the value of attribute reserved2_6.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_6
  @reserved2_6
end

#reserved2_7 ⇒ Object

Returns the value of attribute reserved2_7.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_7
  @reserved2_7
end

#reserved2_8 ⇒ Object

Returns the value of attribute reserved2_8.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_8
  @reserved2_8
end

#reserved2_9 ⇒ Object

Returns the value of attribute reserved2_9.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def reserved2_9
  @reserved2_9
end

#total_pages_in_file ⇒ Object

Returns the value of attribute total_pages_in_file.



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 58

def total_pages_in_file
  @total_pages_in_file
end

Instance Method Details

#pack ⇒ Object 



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 60

def pack
  return [@magic, @last_page_size, @total_pages_in_file, @relocation_items, @paragraphs_in_header, @minimum_extra_paragraphs, @maximum_extra_paragraphs, @initial_stack_segment, @initial_stack_pointer, @complemented_checksum, @initial_instraction_pointer, @initial_code_segment, @relocation_table_offset, @overlay_number, @reserved1_1, @reserved1_2, @reserved1_3, @reserved1_4, @oem_identifier, @oem_information, @reserved2_1, @reserved2_2, @reserved2_3, @reserved2_4, @reserved2_5, @reserved2_6, @reserved2_7, @reserved2_8, @reserved2_9, @reserved2_10, @offset_to_new_header].pack(FORMAT)
end

#unpack(bin) ⇒ Object 



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# File 'lib/exerb/win32/struct/image_dos_header.rb', line 64

def unpack(bin)
  @magic, @last_page_size, @total_pages_in_file, @relocation_items, @paragraphs_in_header, @minimum_extra_paragraphs, @maximum_extra_paragraphs, @initial_stack_segment, @initial_stack_pointer, @complemented_checksum, @initial_instraction_pointer, @initial_code_segment, @relocation_table_offset, @overlay_number, @reserved1_1, @reserved1_2, @reserved1_3, @reserved1_4, @oem_identifier, @oem_information, @reserved2_1, @reserved2_2, @reserved2_3, @reserved2_4, @reserved2_5, @reserved2_6, @reserved2_7, @reserved2_8, @reserved2_9, @reserved2_10, @offset_to_new_header = bin.unpack(FORMAT)
  raise("dos header has invalid signature") unless @magic == SIGNATURE
  return self
end