/* utility functions for `patch' */

/* $Id: util.h,v 1.17 1999/08/30 06:20:08 eggert Exp $ */

/* An upper bound on the print length of a signed decimal line number.
   Add one for the sign.  */
#define LINENUM_LENGTH_BOUND (sizeof (LINENUM) * CHAR_BIT / 3 + 1)

XTERN enum backup_type backup_type;

int ok_to_reverse PARAMS ((char const *, ...)) __attribute__ ((format (printf, 1, 2)));
void ask PARAMS ((char const *, ...)) __attribute__ ((format (printf, 1, 2)));
void say PARAMS ((char const *, ...)) __attribute__ ((format (printf, 1, 2)));

void fatal PARAMS ((char const *, ...))
	__attribute__ ((noreturn, format (printf, 1, 2)));
void pfatal PARAMS ((char const *, ...))
	__attribute__ ((noreturn, format (printf, 1, 2)));

char *fetchname PARAMS ((char *, int, time_t *));
char *savebuf PARAMS ((char const *, size_t));
char *savestr PARAMS ((char const *));
char const *version_controller PARAMS ((char const *, int, struct stat const *, char **, char **));
int version_get PARAMS ((char const *, char const *, int, int, char const *, struct stat *));
int create_file PARAMS ((char const *, int, mode_t));
int systemic PARAMS ((char const *));
char *format_linenum PARAMS ((char[LINENUM_LENGTH_BOUND + 1], LINENUM));
void Fseek PARAMS ((FILE *, file_offset, int));
void copy_file PARAMS ((char const *, char const *, int, mode_t));
void exit_with_signal PARAMS ((int)) __attribute__ ((noreturn));
void ignore_signals PARAMS ((void));
void init_time PARAMS ((void));
void memory_fatal PARAMS ((void)) __attribute__ ((noreturn));
void move_file PARAMS ((char const *, int volatile *, char *, mode_t, int));
void read_fatal PARAMS ((void)) __attribute__ ((noreturn));
void remove_prefix PARAMS ((char *, size_t));
void removedirs PARAMS ((char *));
void set_signals PARAMS ((int));
void write_fatal PARAMS ((void)) __attribute__ ((noreturn));