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- /* common.h - Common functions */
- /* Written 1993 by Werner Almesberger */
- # include <asm/types.h>
- # define MSDOS_FAT12 4084 /* maximum number of clusters in a 12 bit FAT */
- #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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