Internal Utilities

Functions
void	sfutil_zero (void *ptr, uint32_t size)
	Zeroes out a block of memory.
void *	sfutil_memalign (const void *ptr)
	Aligns a pointer to the nearest boundary.
void *	sfutil_secalloc (size_t size)
	Allocates memory securely.
void	sfutil_secfree (void *ptr, size_t size)
	Frees memory allocated securely.

Detailed Description

Function Documentation

sfutil_memalign()

void * sfutil_memalign

(

const void *

ptr

)

Aligns a pointer to the nearest boundary.

This function aligns the given pointer to the nearest boundary specified by ptr_align.

Parameters

ptr	Pointer to align.

Returns

Aligned pointer.

sfutil_secalloc()

void * sfutil_secalloc

(

size_t

size

)

Allocates memory securely.

This function allocates memory securely, ensuring it is aligned and locked (if supported by the platform).

Parameters

size	Size of the memory block to allocate.

Returns

Pointer to the allocated memory block, or NULL on failure.

sfutil_secfree()

void sfutil_secfree	(	void *	ptr,
		size_t	size
	)

Frees memory allocated securely.

This function frees memory that was allocated using sfutil_secalloc.

Parameters

ptr	Pointer to the memory block to free.
size	Size of the memory block in bytes.

sfutil_zero()

void sfutil_zero	(	void *	ptr,
		uint32_t	size
	)

Zeroes out a block of memory.

This function sets a block of memory to zero using 32-bit writes for efficiency.

Parameters

ptr	Pointer to the memory block to zero out.
size	Size of the memory block in bytes.