iv_argument Class Reference

List of all members.

Public Member Functions
const unsigned char *	retrieve_iv_ptr (enum my_aes_opmode aes_opmode, uint arg_count, Item **args, const char *func_name, THD *thd, my_bool *error_generated)

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Detailed Description

helper class to process an IV argument to aes_encrypt/aes_decrypt

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Member Function Documentation

const unsigned char* iv_argument::retrieve_iv_ptr	(	enum my_aes_opmode	aes_opmode,
		uint	arg_count,
		Item **	args,
		const char *	func_name,
		THD *	thd,
		my_bool *	error_generated
	)		[inline]

Validate the arguments and retrieve the IV value.

Processes a 3d optional IV argument to an Item_func function. Contains all the necessary stack buffers etc.

Parameters:

	aes_opmode	the encryption mode
	arg_count	number of parameters passed to the function
	args	array of arguments passed to the function
	func_name	the name of the function (for errors)
	thd	the current thread (for errors)
[out]	error_generated	set to true if error was generated.

Returns:

a pointer to the retrived validated IV or NULL

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The documentation for this class was generated from the following file:

• item_strfunc.cc