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/* SPDX-License-Identifier: MIT */
/*
* Utility functions for programs
*
* Copyright 2018 Google LLC
*
* Use of this source code is governed by an MIT-style
* license that can be found in the LICENSE file or at
* https://opensource.org/licenses/MIT.
*/
#ifndef PROGRAMS_UTILS_H
#define PROGRAMS_UTILS_H
#include "libfsverity.h"
#include "../common/common_defs.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void *xmalloc(size_t size);
void *xzalloc(size_t size);
void *xmemdup(const void *mem, size_t size);
char *xstrdup(const char *s);
__printf(1, 2) __cold void error_msg(const char *format, ...);
__printf(1, 2) __cold void error_msg_errno(const char *format, ...);
__printf(1, 2) __cold __noreturn void fatal_error(const char *format, ...);
__cold __noreturn void assertion_failed(const char *expr,
const char *file, int line);
#define ASSERT(e) ({ if (!(e)) assertion_failed(#e, __FILE__, __LINE__); })
void install_libfsverity_error_handler(void);
struct filedes {
int fd;
char *name; /* filename, for logging or error messages */
};
bool open_file(struct filedes *file, const char *filename, int flags, int mode);
bool get_file_size(struct filedes *file, u64 *size_ret);
bool full_read(struct filedes *file, void *buf, size_t count);
bool full_write(struct filedes *file, const void *buf, size_t count);
bool filedes_close(struct filedes *file);
int read_callback(void *file, void *buf, size_t count);
bool hex2bin(const char *hex, u8 *bin, size_t bin_len);
void bin2hex(const u8 *bin, size_t bin_len, char *hex);
#endif /* PROGRAMS_UTILS_H */
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