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/*
* Copyright (c) 2012-2016 Cyril Hrubis <chrubis@suse.cz>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SAFE_FILE_OPS_FN
#define SAFE_FILE_OPS_FN
#include <sys/stat.h>
#include <time.h>
#include "lapi/utime.h"
/*
* All-in-one function to scanf value(s) from a file.
*/
int file_scanf(const char *file, const int lineno,
const char *path, const char *fmt, ...)
__attribute__ ((format (scanf, 4, 5)));
void safe_file_scanf(const char *file, const int lineno,
void (*cleanup_fn)(void),
const char *path, const char *fmt, ...)
__attribute__ ((format (scanf, 5, 6)));
int file_lines_scanf(const char *file, const int lineno,
void (*cleanup_fn)(void), int strict,
const char *path, const char *fmt, ...)
__attribute__ ((format (scanf, 6, 7)));
/*
* All-in-one function that lets you printf directly into a file.
*/
int file_printf(const char *file, const int lineno,
const char *path, const char *fmt, ...)
__attribute__ ((format (printf, 4, 5)));
void safe_file_printf(const char *file, const int lineno,
void (*cleanup_fn)(void),
const char *path, const char *fmt, ...)
__attribute__ ((format (printf, 5, 6)));
/*
* Safe function to copy files, no more system("cp ...") please.
*/
void safe_cp(const char *file, const int lineno,
void (*cleanup_fn)(void),
const char *src, const char *dst);
/*
* Safe function to touch a file.
*
* If the file (pathname) does not exist It will be created with
* the specified permission (mode) and the access/modification times (times).
*
* If mode is 0 then the file is created with (0666 & ~umask)
* permission or (if the file exists) the permission is not changed.
*
* times is a timespec[2] (as for utimensat(2)). If times is NULL then
* the access/modification times of the file is set to the current time.
*/
void safe_touch(const char *file, const int lineno,
void (*cleanup_fn)(void),
const char *pathname,
mode_t mode, const struct timespec times[2]);
/* helper functions to setup overlayfs mountpoint */
void create_overlay_dirs(void);
int mount_overlay(const char *file, const int lineno, int skip);
#endif /* SAFE_FILE_OPS_FN */
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