Quiret at 23:36, 16 January 2022

2022-01-16T23:36:00Z

← Older revision		Revision as of 23:36, 16 January 2022
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	==Syntax==		==Syntax==
	<syntaxhighlight lang="lua">		<syntaxhighlight lang="lua">
	int file.readInt ()		int file:readInt ()
	</syntaxhighlight>		</syntaxhighlight>

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	-- Write the file header.		-- Write the file header.
	theFile.writeInt( #encryptedCode );		theFile:writeInt( #encryptedCode );

	-- Write file contents.		-- Write file contents.
	theFile.write( encryptedCode );		theFile:write( encryptedCode );
	end		end

	local function unpackSourceCode( theFile )		local function unpackSourceCode( theFile )
	-- Grab the source code from the file.		-- Grab the source code from the file.
	local encryptedLen = theFile.readInt();		local encryptedLen = theFile:readInt();

	-- Has the length been read correctly?		-- Has the length been read correctly?
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	end		end

	local encryptedSource = theFile.read( encryptedLen );		local encryptedSource = theFile:read( encryptedLen );

	-- Make sure it has not been fragmented.		-- Make sure it has not been fragmented.
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	-- Get the original source code again.		-- Get the original source code again.
	theFile.seek( 0, "set" );		theFile:seek( 0, "set" );

	local unencryptedSources = {};		local unencryptedSources = {};

The GTA: Created page with "NOTOC This function attempts to read an integer (native type) from a file and return it. The amount of bytes read should be four. ==Syntax== int file.readInt (..."

2014-01-30T09:23:16Z

Created page with "__NOTOC__ This function attempts to read an integer (native type) from a file and return it. The amount of bytes read should be four. ==Syntax== <syntaxhighlight lang="lua"> int file.readInt (..."

New page

__NOTOC__
This function attempts to read an integer (native type) from a file and return it. The amount of bytes read should be four.

==Syntax==
<syntaxhighlight lang="lua">
int file.readInt ()
</syntaxhighlight>

==Returns==
Returns an integer if it was successfully read from the file, '''false''' otherwise.

==Example==
<section name="Client" class="client" show="true">
This snippet demonstrates an encrypted Lua source code format.
<syntaxhighlight lang="lua">
-- Have some pieces of source code as samples.
local sourceSamples = {
[[print("Hello World!");]],
[[print("Ballas on the streets.");]],
[[return 1+1==0;]]
};

local function packSourceCode( theFile, sourceString )
-- Encrypt the source code.
local encryptedCode = teaEncode( sourceString );

-- Write the file header.
theFile.writeInt( #encryptedCode );

-- Write file contents.
theFile.write( encryptedCode );
end

local function unpackSourceCode( theFile )
-- Grab the source code from the file.
local encryptedLen = theFile.readInt();

-- Has the length been read correctly?
if not ( encryptedLen ) then
return false;
end

local encryptedSource = theFile.read( encryptedLen );

-- Make sure it has not been fragmented.
if not ( #encryptedSource == encryptedLen ) then
return false;
end

-- Decrypt the source code.
local sourceCode = teaDecode( encryptedSource );

-- Return it.
return sourceCode;
end

-- Attempt some encryption.
local theFile = fileCreate( "encryptedSource.lue" );

for m,n in ipairs( sourceSamples ) do
packSourceCode( theFile, n );
end

-- Get the original source code again.
theFile.seek( 0, "set" );

local unencryptedSources = {};

while ( true ) do
local code = unpackSourceCode( theFile );

if not ( code ) then break; end

table.insert( unencryptedSources, code );
end
</syntaxhighlight>
</section>
{{:MTA:Eir/FileSystem/file/functions}}

MTA:Eir/FileSystem/file/readInt - Revision history

Quiret at 23:36, 16 January 2022

The GTA: Created page with "__NOTOC__ This function attempts to read an integer (native type) from a file and return it. The amount of bytes read should be four. ==Syntax== int file.readInt (..."

The GTA: Created page with "NOTOC This function attempts to read an integer (native type) from a file and return it. The amount of bytes read should be four. ==Syntax== int file.readInt (..."