/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1992, 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 8.2 (Berkeley) 4/20/95
*
* $FreeBSD$
*/
struct name *cat(struct name *, struct name *);
struct name *delname(struct name *, char *);
struct name *elide(struct name *);
struct name *extract(char *, int);
struct name *gexpand(struct name *, struct grouphead *, int, int);
struct name *nalloc(char *, int);
struct name *outof(struct name *, FILE *, struct header *);
struct name *put(struct name *, struct name *);
struct name *tailof(struct name *);
struct name *usermap(struct name *);
FILE *Fdopen(int, const char *);
FILE *Fopen(const char *, const char *);
FILE *Popen(char *, const char *);
FILE *collect(struct header *, int);
char *copyin(char *, char **);
char *detract(struct name *, int);
char *expand(char *);
char *getdeadletter(void);
char *getname(uid_t);
char *hfield(const char *, struct message *);
FILE *infix(struct header *, FILE *);
char *ishfield(char *, char *, const char *);
char *name1(struct message *, int);
char *nameof(struct message *, int);
char *nextword(char *, char *);
char *readtty(const char *, char *);
char *reedit(char *);
FILE *run_editor(FILE *, off_t, int, int);
char *salloc(int);
char *savestr(char *);
FILE *setinput(struct message *);
char *skin(char *);
char *skip_comment(char *);
char *snarf(char *, int *);
char *username(void);
char *value(const char *);
char *vcopy(const char *);
char *yankword(char *, char *);
char *yanklogin(char *, char *);
int Fclose(FILE *);
int More(void *);
int Pclose(FILE *);
int Respond(int *);
int Type(void *);
int doRespond(int *);
int dorespond(int *);
void alter(char *);
int alternates(char **);
void announce(void);
int append(struct message *, FILE *);
int argcount(char **);
void assign(const char *, const char *);
int bangexp(char *, size_t);
void brokpipe(int);
int charcount(char *, int);
int check(int, int);
void clob1(int);
int clobber(char **);
void close_all_files(void);
int cmatch(char *, char *);
void collhup(int);
void collint(int);
void collstop(int);
void commands(void);
int copycmd(void *v);
int core(void);
int count(struct name *);
int deletecmd(void *);
int delm(int *);
int deltype(void *);
void demail(void);
int diction(const void *, const void *);
int dosh(char *);
int echo(char **);
int edit1(int *, int);
int editor(int *);
void edstop(void);
int elsecmd(void);
int endifcmd(void);
int evalcol(int);
int execute(char *, int);
int exwrite(char *, FILE *, int);
void fail(const char *, const char *);
int file(char **);
struct grouphead *
findgroup(char *);
void findmail(char *, char *, int);
int first(int, int);
void fixhead(struct header *, struct name *);
void fmt(const char *, struct name *, FILE *, int);
int folders(void);
int forward(char *, FILE *, char *, int);
void free_child(int);
int from(void *);
off_t fsize(FILE *);
int getfold(char *, int);
int gethfield(FILE *, char *, int, char **);
int getmsglist(char *, int *, int);
int getrawlist(char *, char **, int);
uid_t getuserid(char *);
int grabh(struct header *, int);
int group(void *);
void hangup(int);
int hash(const char *);
void hdrstop(int);
int headers(void *);
int help(void);
void holdsigs(void);
int ifcmd(char **);
int igcomp(const void *, const void *);
int igfield(void *);
int ignore1(char **, struct ignoretab *, const char *);
int igshow(struct ignoretab *, const char *);
int inc(void *);
int incfile(void);
void intr(int);
int isdate(char *);
int isdir(char *);
int isfileaddr(char *);
int ishead(char *);
int isign(const char *, struct ignoretab []);
int isprefix(const char *, const char *);
void istrncpy(char *, const char *, size_t);
const struct cmd *
lex(char *);
void load(char *);
struct var *
lookup(const char *);
int mail(struct name *,
struct name *, struct name *, struct name *, char *, char *);
void mail1(struct header *, int);
void makemessage(FILE *, int);
void mark(int);
int markall(char *, int);
int matchsender(char *, int);
int matchfield(char *, int);
int mboxit(void *);
int member(char *, struct ignoretab *);
void mesedit(FILE *, int);
void mespipe(FILE *, char *);
int messize(void *);
int metamess(int, int);
int more(void *);
int newfileinfo(int);
int next(void *);
int null(int);
void parse(char *, struct headline *, char *);
int pcmdlist(void);
int pdot(void);
void prepare_child(sigset_t *, int, int);
int preserve(void *);
void prettyprint(struct name *);
void printgroup(char *);
void printhead(int);
int puthead(struct header *, FILE *, int);
int putline(FILE *, char *, int);
int pversion(int);
void quit(void);
int quitcmd(void);
int readline(FILE *, char *, int);
void register_file(FILE *, int, int);
void regret(int);
void relsesigs(void);
int respond(void *);
int retfield(void *);
int rexit(void *);
int rm(char *);
int run_command(char *, sigset_t *, int, int, ...);
int save(void *v);
int save1(char *, int, const char *, struct ignoretab *);
void savedeadletter(FILE *);
int saveigfield(void *);
int savemail(char *, FILE *);
int saveretfield(void *);
int scan(char **);
void scaninit(void);
int schdir(void *);
int screensize(void);
int scroll(void *);
int sendmessage(struct message *, FILE *, struct ignoretab *, char *);
int sendmail(char *);
int set(void *);
int setfile(char *);
void setmsize(int);
void setptr(FILE *, off_t);
void setscreensize(void);
int shell(char *);
void sigchild(int);
void sort(char **);
int source(char **);
void spreserve(void);
void sreset(void);
int start_command(char *, sigset_t *, int, int, ...);
void statusput(struct message *, FILE *, char *);
void stop(int);
int stouch(void *);
int swrite(void *);
void tinit(void);
int top(void *);
void touch(struct message *);
void ttyint(int);
void ttystop(int);
int type(void *);
int type1(int *, int, int);
int undeletecmd(void *);
void unmark(int);
char **unpack(struct name *);
int unread(void *);
void unregister_file(FILE *);
int unset(void *);
int unstack(void);
void vfree(char *);
int visual(int *);
int wait_child(int);
int wait_command(int);
int writeback(FILE *);
extern char *__progname;
extern char *tmpdir;