src/boot/efi/util.h

/* SPDX-License-Identifier: LGPL-2.1+ */
/*
 * Copyright © 2012 Harald Hoyer <harald@redhat.com>
 */

#ifndef __SDBOOT_UTIL_H
#define __SDBOOT_UTIL_H

#include <efi.h>
#include <efilib.h>

#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))

static inline const CHAR16 *yes_no(BOOLEAN b) {
        return b ? L"yes" : L"no";
}

EFI_STATUS parse_boolean(CHAR8 *v, BOOLEAN *b);

UINT64 ticks_read(void);
UINT64 ticks_freq(void);
UINT64 time_usec(void);

EFI_STATUS efivar_set(CHAR16 *name, CHAR16 *value, BOOLEAN persistent);
EFI_STATUS efivar_set_raw(const EFI_GUID *vendor, CHAR16 *name, CHAR8 *buf, UINTN size, BOOLEAN persistent);
EFI_STATUS efivar_set_int(CHAR16 *name, UINTN i, BOOLEAN persistent);
VOID efivar_set_time_usec(CHAR16 *name, UINT64 usec);

EFI_STATUS efivar_get(CHAR16 *name, CHAR16 **value);
EFI_STATUS efivar_get_raw(const EFI_GUID *vendor, CHAR16 *name, CHAR8 **buffer, UINTN *size);
EFI_STATUS efivar_get_int(CHAR16 *name, UINTN *i);

CHAR8 *strchra(CHAR8 *s, CHAR8 c);
CHAR16 *stra_to_path(CHAR8 *stra);
CHAR16 *stra_to_str(CHAR8 *stra);

EFI_STATUS file_read(EFI_FILE_HANDLE dir, CHAR16 *name, UINTN off, UINTN size, CHAR8 **content, UINTN *content_size);
#endif

static inline void FreePoolp(void *p) {
        FreePool(*(void**) p);
}

#define _cleanup_(x) __attribute__((cleanup(x)))
#define _cleanup_freepool_ _cleanup_(FreePoolp)