Utility Functions

Memory and Module Utilities

is_valid(std::uintptr_t addr)

Checks if an address is within valid physical memory ranges.

Parameters:

• addr: Address to check

Returns: bool

Example:

std::uintptr_t addr = 0x1000;
if (Styx::is_valid(addr)) {
    std::cout << "Address is valid" << std::endl;
}

init_ranges()

Initializes the physical memory ranges.

Returns: bool

Example:

if (Styx::init_ranges()) {
    std::cout << "Physical memory ranges initialized" << std::endl;
}

get_file_header(void* base_addr)

Gets the file header of a module.

Parameters:

• base_addr: Base address of the module

Returns: PIMAGE_FILE_HEADER

Example:

void* module_base = (void*)0x7FFE0000;
PIMAGE_FILE_HEADER file_header = Styx::get_file_header(module_base);
std::cout << "Number of sections: " << file_header->NumberOfSections << std::endl;

These functions provide utilities for checking memory validity, initializing memory ranges, and accessing module file headers. The is_valid function is particularly useful for ensuring that memory operations are performed on valid addresses, while init_ranges sets up the necessary information for memory range checks. The get_file_header function allows for direct access to a module's file header, which can be useful for analyzing loaded modules or performing advanced memory operations.