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