Discussion
Studying more of the `grub-*` commands...
`grub-mkrelpath` performs some OS-specific init, zeroes out some data, parses commandline flags, defers to `grub_make_system_path_relative`, outputs results, & cleans up.
`grub-mkpassword-pbkdf2` performs some OS-specific init, parses commandline flags, prompts the user for their password & confirmation, validates that they're the same, inits randomness, defers to `grub_crypto_pbkdf2`, outputs results, & cleans up.
1/?
`grub-mknetdir` performs some OS-specific init, disables synchronization, retrieves some filepaths, parses commandline flags, concats some filepaths, creates target directory, loads the TFTP module, & invokes a support routine with or without wrapping it in an iteration over known platforms.
That support routine copies files into place, possibly creates a config file, finalizes some filepaths, & invokes a few `grub_install_*` routines.
2/3?
`grub-gen-asciih` validates that it got 3 args, inits FreeType, opens the given font face, configures the desired pixel sizes, opens the output, & via a helper iterates over the ASCII charset. For each it retrieves the glyph (via another helper) & reformats it into a dataheader.
`grub-editenv` performs some OS-specific init, parses commandline flags & remaining args, & dispatches based on the subcommand. `grub-editenv create` defers to `grub_util_create_envblk_file()`.
3/4!
`grub-editenv list` transiently-opens & iterates over the envblock file with a callback printing the key=value pairs.
`grub-editenv set` transiently opens the envblock file so it can pass the parsed data to `grub_envblk_set()`. Whilst `grub-editenv unset` defers to `grub_envblk_delete()`.
Otherwise `grub-editenv` complains.
There's a helper for carefully opening the envblock file, & reading it entirely into memory.
4/4 Fin for today!
Install bonfire.cafe
Get the full app experience
