/*	$OpenBSD: extern.h,v 1.31 2018/09/18 17:48:22 millert Exp $	*/
/*	$NetBSD: extern.h,v 1.8 1996/10/31 23:50:54 christos Exp $	*/

/*-
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)extern.h	8.1 (Berkeley) 5/31/93
 */

/*
 * csh.c
 */
int	gethdir(Char *, int);
void	dosource(Char **, struct command *);
void	exitstat(void);
void	goodbye(void);
void	importpath(Char *);
void	initdesc(void);
void	pintr(int);
void	pintr1(bool);
void	printprompt(void);
void	process(bool);
void	rechist(void);
void	untty(void);
int	vis_fputc(int, FILE *);
void	xexit(int);

/*
 * dir.c
 */
void	 dinit(Char *);
void	 dodirs(Char **, struct command *);
Char	*dcanon(Char *, Char *);
void	 dtildepr(Char *, Char *);
void	 dtilde(void);
void	 dochngd(Char **, struct command *);
Char	*dnormalize(Char *);
void	 dopushd(Char **, struct command *);
void	 dopopd(Char **, struct command *);
struct directory;
void	 dfree(struct directory *);

/*
 * dol.c
 */
void	 Dfix(struct command *);
Char	*Dfix1(Char *);
void	 heredoc(Char *);

/*
 * err.c
 */
void	seterror(int, ...);
void	stderror(int, ...);

/*
 * exec.c
 */
void	doexec(Char **, struct command *);
void	dohash(Char **, struct command *);
void	dounhash(Char **, struct command *);
void	dowhich(Char **, struct command *);
void	execash(Char **, struct command *);
void	hashstat(Char **, struct command *);
void	xechoit(Char **);

/*
 * exp.c
 */
int	expr(Char ***);
int	exp0(Char ***, bool);

/*
 * file.c
 */
int	tenex(Char *, int);

/*
 * func.c
 */
void	Setenv(Char *, Char *);
void	doalias(Char **, struct command *);
void	dobreak(Char **, struct command *);
void	docontin(Char **, struct command *);
void	doecho(Char **, struct command *);
void	doelse(Char **, struct command *);
void	doend(Char **, struct command *);
void	doeval(Char **, struct command *);
void	doexit(Char **, struct command *);
void	doforeach(Char **, struct command *);
void	doglob(Char **, struct command *);
void	dogoto(Char **, struct command *);
void	doif(Char **, struct command *);
void	dolimit(Char **, struct command *);
void	dologin(Char **, struct command *);
void	dologout(Char **, struct command *);
void	donohup(Char **, struct command *);
void	doonintr(Char **, struct command *);
void	dorepeat(Char **, struct command *);
void	dosetenv(Char **, struct command *);
void	dosuspend(Char **, struct command *);
void	doswbrk(Char **, struct command *);
void	doswitch(Char **, struct command *);
void	doumask(Char **, struct command *);
void	dounlimit(Char **, struct command *);
void	dounsetenv(Char **, struct command *);
void	dowhile(Char **, struct command *);
void	dozip(Char **, struct command *);
void	func(struct command *, struct biltins *);
struct	biltins *
	isbfunc(struct command *);
void	prvars(void);
void	gotolab(Char *);
int	srchx(Char *);
void	unalias(Char **, struct command *);
void	wfree(void);

/*
 * glob.c
 */
Char	**dobackp(Char *, bool);
void	  Gcat(Char *, Char *);
Char	 *globone(Char *, int);
int	  Gmatch(Char *, Char *);
void	  ginit(void);
Char	**globall(Char **);
void	  rscan(Char **, void (*)(int));
void	  tglob(Char **);
void	  trim(Char **);
int	  sortscmp(const void *, const void *);

/*
 * hist.c
 */
void	dohist(Char **, struct command *);
struct Hist *
	enthist(int, struct wordent *, bool);
void	savehist(struct wordent *);

/*
 * lex.c
 */
void	 addla(Char *);
void	 bseek(struct Ain *);
void	 btell(struct Ain *);
void	 btoeof(void);
void	 copylex(struct wordent *, struct wordent *);
Char	*domod(Char *, int);
void	 freelex(struct wordent *);
int	 lex(struct wordent *);
void	 prlex(FILE *, struct wordent *);
int	 readc(bool);
void	 settell(void);
void	 unreadc(int);

/*
 * misc.c
 */
int	  any(char *, int);
Char	**blkcat(Char **, Char **);
Char	**blkcpy(Char **, Char **);
Char	**blkend(Char **);
void	  blkfree(Char **);
int	  blklen(Char **);
void	  blkpr(FILE *, Char **);
Char	**blkspl(Char **, Char **);
void	  closem(void);
Char	**copyblk(Char **);
int	  dcopy(int, int);
int	  dmove(int, int);
void	  donefds(void);
Char	  lastchr(Char *);
void	  lshift(Char **, int);
int	  number(Char *);
int	  prefix(Char *, Char *);
Char	**saveblk(Char **);
Char	 *strip(Char *);
Char	 *quote(Char *);
char	 *strspl(char *, char *);
void	  udvar(Char *);

/*
 * parse.c
 */
void	alias(struct wordent *);
void	freesyn(struct command *);
struct command *
	syntax(struct wordent *, struct wordent *, int);

/*
 * proc.c
 */
void	dobg(Char **, struct command *);
void	dobg1(Char **, struct command *);
void	dofg(Char **, struct command *);
void	dofg1(Char **, struct command *);
void	dojobs(Char **, struct command *);
void	dokill(Char **, struct command *);
void	donotify(Char **, struct command *);
void	dostop(Char **, struct command *);
void	dowait(Char **, struct command *);
void	palloc(int, struct command *);
void	panystop(bool);
void	pchild(int);
void	pendjob(void);
struct process *
	pfind(Char *);
int	pfork(struct command *, int);
void	pgetty(int, int);
void	pjwait(struct process *);
void	pnote(void);
void	prestjob(void);
void	psavejob(void);
void	pstart(struct process *, int);
void	pwait(void);

/*
 * sem.c
 */
void	execute(struct command *, int, int *, int *);
void	mypipe(int *);

/*
 * set.c
 */
struct	varent
	*adrof1(Char *, struct varent *);
void	 doset(Char **, struct command *);
void	 dolet(Char **, struct command *);
Char	*putn(int);
int	 getn(Char *);
Char	*value1(Char *, struct varent *);
void	 set(Char *, Char *);
void	 set1(Char *, Char **, struct varent *);
void	 setq(Char *, Char **, struct varent *);
void	 unset(Char **, struct command *);
void	 unset1(Char *[], struct varent *);
void	 unsetv(Char *);
void	 setNS(Char *);
void	 shift(Char **, struct command *);
void	 plist(struct varent *);

/*
 * time.c
 */
void	donice(Char **, struct command *);
void	dotime(Char **, struct command *);
void	prusage(struct rusage *, struct rusage *,
	    struct timespec *, struct timespec *);
void	ruadd(struct rusage *, struct rusage *);
void	settimes(void);
void	pcsecs(long);
void	psecs(long);

/*
 * alloc.c
 */
void	*xmalloc(size_t);
void	*xreallocarray(void *, size_t, size_t);
void	*xcalloc(size_t, size_t);
char	*xstrdup(const char *);

/*
 * str.c:
 */
size_t	  Strlcpy(Char *, const Char *, size_t);
size_t	  Strlcat(Char *, const Char *, size_t);
Char	 *Strchr(Char *, int);
Char	 *Strrchr(Char *, int);
Char	 *Strspl(Char *, Char *);
size_t	  Strlen(Char *);
int	  Strcmp(Char *, Char *);
int	  Strncmp(Char *, Char *, size_t);
Char	 *Strsave(Char *);
Char	 *Strend(Char *);
Char	 *Strstr(Char *, Char *);
Char	 *str2short(char *);
Char	**blk2short(char **);
char	 *short2str(Char *);
char	**short2blk(Char **);
char	 *short2qstr(Char *);
char	 *vis_str(Char *);