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- /* common.h - Common functions
- Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
- Copyright (C) 2008-2013 Daniel Baumann <mail@daniel-baumann.ch>
- 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 3 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/>.
- On Debian systems, the complete text of the GNU General Public License
- can be found in /usr/share/common-licenses/GPL-3 file.
- */
- #include <asm/types.h>
- #ifndef _COMMON_H
- #define _COMMON_H
- void die(char *msg, ...) __attribute((noreturn));
- /* Displays a prinf-style message and terminates the program. */
- void pdie(char *msg, ...) __attribute((noreturn));
- /* Like die, but appends an error message according to the state of errno. */
- void *alloc(int size);
- /* mallocs SIZE bytes and returns a pointer to the data. Terminates the program
- if malloc fails. */
- void *qalloc(void **root, int size);
- /* Like alloc, but registers the data area in a list described by ROOT. */
- void qfree(void **root);
- /* Deallocates all qalloc'ed data areas described by ROOT. */
- int min(int a, int b);
- /* Returns the smaller integer value of a and b. */
- char get_key(char *valid, char *prompt);
- /* Displays PROMPT and waits for user input. Only characters in VALID are
- accepted. Terminates the program on EOF. Returns the character. */
- #endif
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