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loop
Blocks := Blocks + 1;
Inflate_Block (Is_Last_Block, Blocks_Fix, Blocks_Dyn);
exit when Is_Last_Block;
end loop;
Unz_Io.Flush (Unz_Glob.Slide_Index);
Unz_Glob.Slide_Index := 0;
end Inflate;
end Unz_Meth;
procedure Process_Descriptor_Store (Descriptor : out Zip.Headers.Data_Descriptor) is
Buffer : Ada.Streams.Stream_Element_Array (1 .. 16);
begin
Zip.Blockread (Zip_File, Buffer);
Zip.Headers.Copy_And_Check (Buffer, Descriptor);
end Process_Descriptor_Store;
procedure Process_Descriptor_Deflate (Descriptor : out Zip.Headers.Data_Descriptor) is
Buffer : Ada.Streams.Stream_Element_Array (1 .. 16);
begin
Unz_Io.Bit_Buffer.Dump_To_Byte_Boundary;
for I in Buffer'Range loop
Buffer (I) := Ada.Streams.Stream_Element (Unz_Io.Read_Byte_Decrypted);
end loop;
Zip.Headers.Copy_And_Check (Buffer, Descriptor);
end Process_Descriptor_Deflate;
use Zip;
begin
Unz_Io.Init_Buffers;
-- Unzip correct type
case Format is
when Store =>
Unz_Meth.Copy_Stored (Ada.Streams.Stream_Element_Offset (Compressed_Size));
when Deflate =>
Unz_Meth.Inflate;
end case;
if Verify_Integrity then
CRC_Value := Zip.CRC.Final (CRC_Value);
end if;
if Data_Descriptor_After_Data then -- Sizes and CRC at the end
declare
Memo_Uncomp_Size : constant Unsigned_32 := Hint.Dd.Uncompressed_Size;
begin
case Format is
when Store =>
Process_Descriptor_Store (Hint.Dd);
when Deflate =>
Process_Descriptor_Deflate (Hint.Dd);
end case;
-- CRC is for checking; sizes are for informing user
if Memo_Uncomp_Size < Unsigned_32'Last
and then Memo_Uncomp_Size /= Hint.Dd.Uncompressed_Size
then
raise Uncompressed_Size_Error;
end if;
exception
when Zip.Headers.Bad_Data_Descriptor =>
raise Zip.Archive_Corrupted;
Function Definition: procedure UnzipDCF is
Function Body: package Dirs renames Ada.Directories;
package SU renames Ada.Strings.Unbounded;
List_Files : Boolean := False;
Test_Data : Boolean := False;
Comment : Boolean := False;
Quiet : Boolean := False;
No_Directories : Boolean := False;
Lower_Case : Boolean := False;
Last_Option : Natural := 0;
Extraction_Directory : SU.Unbounded_String
:= SU.To_Unbounded_String (Dirs.Current_Directory);
Name_Conflict_Decision : DCF.Unzip.Name_Conflict_Intervention := DCF.Unzip.Yes;
procedure Help is
begin
Put_Line ("UnZipDCF " & DCF.Zip.Version & " - unzip document container files");
New_Line;
Put_Line ("Usage: unzipdcf [-options[modifiers]] [-d exdir] file [list]");
New_Line;
Put_Line (" -l list files");
Put_Line (" -t test integrity of files, no write");
Put_Line (" -z display archive comment only");
Put_Line (" -d extract to ""exdir""");
Put_Line ("modifiers:");
Put_Line (" -n never overwrite existing files -q quiet mode");
Put_Line (" -o always overwrite existing files");
Put_Line (" -j junk archived directory structure -L make names lower case");
end Help;