| /* |
| * Copyright (C) 2012 Cyril Hrubis chrubis@suse.cz |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| /* |
| |
| This code helps with file reading/writing files providing scanf/printf like |
| interface that opens and closes the file automatically. |
| |
| This kind of interface is especially useful for reading/writing values |
| from/to pseudo filesystems like procfs or sysfs. |
| |
| */ |
| |
| #ifndef SAFE_FILE_OPS |
| #define SAFE_FILE_OPS |
| |
| #include <sys/stat.h> |
| |
| #include "test.h" |
| |
| /* |
| * All-in-one function to scanf value(s) from a file. |
| */ |
| 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))); |
| |
| #define SAFE_FILE_SCANF(cleanup_fn, path, fmt, ...) \ |
| safe_file_scanf(__FILE__, __LINE__, (cleanup_fn), \ |
| (path), (fmt), ## __VA_ARGS__) |
| |
| /* |
| * All-in-one function that lets you printf directly into a file. |
| */ |
| 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))); |
| |
| #define SAFE_FILE_PRINTF(cleanup_fn, path, fmt, ...) \ |
| safe_file_printf(__FILE__, __LINE__, (cleanup_fn), \ |
| (path), (fmt), ## __VA_ARGS__) |
| |
| /* |
| * 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); |
| |
| #define SAFE_CP(cleanup_fn, src, dst) \ |
| safe_cp(__FILE__, __LINE__, (cleanup_fn), (src), (dst)) |
| |
| #endif /* SAFE_FILE_OPS */ |