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--- a/ash.h
+++ /dev/null
@@ -1,1225 +0,0 @@
-/*-
- * Copyright (c) 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Kenneth Almquist.
- *
- * 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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.
- */
-
-/* $NetBSD: alias.h,v 1.4 1995/05/11 21:28:42 christos Exp $ */
-
-#define ALIASINUSE 1
-#define ALIASDEAD 2
-
-struct alias {
- struct alias *next;
- char *name;
- char *val;
- int flag;
-};
-
-struct alias *lookupalias __P((const char *, int));
-static int aliascmd __P((int, char **));
-static int unaliascmd __P((int, char **));
-static void rmaliases __P((void));
-static int unalias __P((char *));
-static void printalias __P((const struct alias *));
-#define ARITH_NUM 257
-#define ARITH_LPAREN 258
-#define ARITH_RPAREN 259
-#define ARITH_OR 260
-#define ARITH_AND 261
-#define ARITH_BOR 262
-#define ARITH_BXOR 263
-#define ARITH_BAND 264
-#define ARITH_EQ 265
-#define ARITH_NE 266
-#define ARITH_LT 267
-#define ARITH_GT 268
-#define ARITH_GE 269
-#define ARITH_LE 270
-#define ARITH_LSHIFT 271
-#define ARITH_RSHIFT 272
-#define ARITH_ADD 273
-#define ARITH_SUB 274
-#define ARITH_MUL 275
-#define ARITH_DIV 276
-#define ARITH_REM 277
-#define ARITH_UNARYMINUS 278
-#define ARITH_UNARYPLUS 279
-#define ARITH_NOT 280
-#define ARITH_BNOT 281
-
-/*
- * This file was generated by the mkbuiltins program.
- */
-
-
-#define BUILTIN_SPECIAL 0x1
-#define BUILTIN_REGULAR 0x2
-#define BUILTIN_ASSIGN 0x4
-
-struct builtincmd {
- const char *name;
- int (*const builtinfunc) __P((int, char **));
- unsigned flags;
-};
-
-extern const struct builtincmd builtincmds[];
-
-
-
-/* $NetBSD: cd.h,v 1.2 1997/07/04 21:01:52 christos Exp $ */
-static int cdcmd __P((int, char **));
-static int pwdcmd __P((int, char **));
-static void setpwd __P((const char *, int));
-
-
-/* $NetBSD: error.h,v 1.14 2001/02/04 19:52:06 christos Exp $ */
-
-/*
- * Types of operations (passed to the errmsg routine).
- */
-
-#define E_OPEN 01 /* opening a file */
-#define E_CREAT 02 /* creating a file */
-#define E_EXEC 04 /* executing a program */
-
-
-/*
- * We enclose jmp_buf in a structure so that we can declare pointers to
- * jump locations. The global variable handler contains the location to
- * jump to when an exception occurs, and the global variable exception
- * contains a code identifying the exeception. To implement nested
- * exception handlers, the user should save the value of handler on entry
- * to an inner scope, set handler to point to a jmploc structure for the
- * inner scope, and restore handler on exit from the scope.
- */
-
-struct jmploc {
- jmp_buf loc;
-};
-
-extern struct jmploc *handler;
-extern int exception;
-
-/* exceptions */
-#define EXINT 0 /* SIGINT received */
-#define EXERROR 1 /* a generic error */
-#define EXSHELLPROC 2 /* execute a shell procedure */
-#define EXEXEC 3 /* command execution failed */
-
-
-/*
- * These macros allow the user to suspend the handling of interrupt signals
- * over a period of time. This is similar to SIGHOLD to or sigblock, but
- * much more efficient and portable. (But hacking the kernel is so much
- * more fun than worrying about efficiency and portability. :-))
- */
-
-extern int suppressint;
-extern volatile int intpending;
-
-#define INTOFF suppressint++
-#ifdef REALLY_SMALL
-static void __inton __P((void));
-#define INTON __inton()
-#else
-#define INTON { if (--suppressint == 0 && intpending) onint(); }
-#endif
-#define FORCEINTON {suppressint = 0; if (intpending) onint();}
-#define CLEAR_PENDING_INT intpending = 0
-#define int_pending() intpending
-
-static void exraise __P((int)) __attribute__((__noreturn__));
-static void onint __P((void));
-static void error __P((const char *, ...)) __attribute__((__noreturn__));
-static void exerror __P((int, const char *, ...)) __attribute__((__noreturn__));
-static const char *errmsg __P((int, int));
-
-
-/*
- * BSD setjmp saves the signal mask, which violates ANSI C and takes time,
- * so we use _setjmp instead.
- */
-
-#if defined(BSD) && !defined(__SVR4) && !defined(__GLIBC__)
-#define setjmp(jmploc) _setjmp(jmploc)
-#define longjmp(jmploc, val) _longjmp(jmploc, val)
-#endif
-
-
-
-/* $NetBSD: shell.h,v 1.13 2000/05/22 10:18:47 elric Exp $ */
-
-/*
- * The follow should be set to reflect the type of system you have:
- * JOBS -> 1 if you have Berkeley job control, 0 otherwise.
- * SHORTNAMES -> 1 if your linker cannot handle long names.
- * define BSD if you are running 4.2 BSD or later.
- * define SYSV if you are running under System V.
- * define DEBUG=1 to compile in debugging (set global "debug" to turn on)
- * define DEBUG=2 to compile in and turn on debugging.
- *
- * When debugging is on, debugging info will be written to $HOME/trace and
- * a quit signal will generate a core dump.
- */
-
-
-#define JOBS 1
-#ifndef BSD
-#define BSD 1
-#endif
-
-#ifdef __STDC__
-typedef void *pointer;
-#ifndef NULL
-#define NULL (void *)0
-#endif
-#else /* not __STDC__ */
-typedef char *pointer;
-#ifndef NULL
-#define NULL 0
-#endif
-#endif /* not __STDC__ */
-
-extern char nullstr[1]; /* null string */
-
-
-#ifdef DEBUG
-#define TRACE(param) trace param
-#else
-#define TRACE(param)
-#endif
-
-
-
-
-/*
- * This file was generated by the mknodes program.
- */
-
-#define NSEMI 0
-#define NCMD 1
-#define NPIPE 2
-#define NREDIR 3
-#define NBACKGND 4
-#define NSUBSHELL 5
-#define NAND 6
-#define NOR 7
-#define NIF 8
-#define NWHILE 9
-#define NUNTIL 10
-#define NFOR 11
-#define NCASE 12
-#define NCLIST 13
-#define NDEFUN 14
-#define NARG 15
-#define NTO 16
-#define NFROM 17
-#define NFROMTO 18
-#define NAPPEND 19
-#define NTOOV 20
-#define NTOFD 21
-#define NFROMFD 22
-#define NHERE 23
-#define NXHERE 24
-#define NNOT 25
-
-
-
-struct nbinary {
- int type;
- union node *ch1;
- union node *ch2;
-};
-
-
-struct ncmd {
- int type;
- int backgnd;
- union node *assign;
- union node *args;
- union node *redirect;
-};
-
-
-struct npipe {
- int type;
- int backgnd;
- struct nodelist *cmdlist;
-};
-
-
-struct nredir {
- int type;
- union node *n;
- union node *redirect;
-};
-
-
-struct nif {
- int type;
- union node *test;
- union node *ifpart;
- union node *elsepart;
-};
-
-
-struct nfor {
- int type;
- union node *args;
- union node *body;
- char *var;
-};
-
-
-struct ncase {
- int type;
- union node *expr;
- union node *cases;
-};
-
-
-struct nclist {
- int type;
- union node *next;
- union node *pattern;
- union node *body;
-};
-
-
-struct narg {
- int type;
- union node *next;
- char *text;
- struct nodelist *backquote;
-};
-
-
-struct nfile {
- int type;
- union node *next;
- int fd;
- union node *fname;
- char *expfname;
-};
-
-
-struct ndup {
- int type;
- union node *next;
- int fd;
- int dupfd;
- union node *vname;
-};
-
-
-struct nhere {
- int type;
- union node *next;
- int fd;
- union node *doc;
-};
-
-
-struct nnot {
- int type;
- union node *com;
-};
-
-
-union node {
- int type;
- struct nbinary nbinary;
- struct ncmd ncmd;
- struct npipe npipe;
- struct nredir nredir;
- struct nif nif;
- struct nfor nfor;
- struct ncase ncase;
- struct nclist nclist;
- struct narg narg;
- struct nfile nfile;
- struct ndup ndup;
- struct nhere nhere;
- struct nnot nnot;
-};
-
-
-struct nodelist {
- struct nodelist *next;
- union node *n;
-};
-
-
-#ifdef __STDC__
-union node *copyfunc(union node *);
-static void freefunc(union node *);
-#else
-union node *copyfunc();
-static void freefunc();
-#endif
-
-
-
-/* $NetBSD: eval.h,v 1.10 2000/01/27 23:39:40 christos Exp $ */
-extern char *commandname; /* currently executing command */
-extern int exitstatus; /* exit status of last command */
-extern struct strlist *cmdenviron; /* environment for builtin command */
-
-
-struct backcmd { /* result of evalbackcmd */
- int fd; /* file descriptor to read from */
- char *buf; /* buffer */
- int nleft; /* number of chars in buffer */
- struct job *jp; /* job structure for command */
-};
-
-static int evalcmd __P((int, char **));
-static void evalstring __P((char *, int));
-static void evaltree __P((union node *, int));
-static void evalbackcmd __P((union node *, struct backcmd *));
-static int bltincmd __P((int, char **));
-static int breakcmd __P((int, char **));
-static int returncmd __P((int, char **));
-static int execcmd __P((int, char **));
-
-/* in_function returns nonzero if we are currently evaluating a function */
-#define in_function() funcnest
-extern int funcnest;
-extern int evalskip;
-
-/* reasons for skipping commands (see comment on breakcmd routine) */
-#define SKIPBREAK 1
-#define SKIPCONT 2
-#define SKIPFUNC 3
-#define SKIPFILE 4
-
-
-
-
-/* $NetBSD: exec.h,v 1.17 2000/05/22 10:18:47 elric Exp $ */
-
-/* values of cmdtype */
-#define CMDUNKNOWN -1 /* no entry in table for command */
-#define CMDNORMAL 0 /* command is an executable program */
-#define CMDBUILTIN 1 /* command is a shell builtin */
-#define CMDFUNCTION 2 /* command is a shell function */
-
-
-struct cmdentry {
- int cmdtype;
- union param {
- int index;
- union node *func;
- const struct builtincmd *cmd;
- } u;
-};
-
-
-#define DO_ERR 1 /* find_command prints errors */
-#define DO_ABS 2 /* find_command checks absolute paths */
-#define DO_NOFUN 4 /* find_command ignores functions */
-#define DO_BRUTE 8 /* find_command ignores hash table */
-
-extern const char *pathopt; /* set by padvance */
-extern int exerrno; /* last exec error */
-
-static void shellexec __P((char **, char **, const char *, int))
- __attribute__((noreturn));
-static char *padvance __P((const char **, const char *));
-static int hashcmd __P((int, char **));
-static void find_command __P((char *, struct cmdentry *, int, const char *));
-struct builtincmd *find_builtin __P((char *));
-static void hashcd __P((void));
-static void changepath __P((const char *));
-static void deletefuncs __P((void));
-#ifdef notdef
-static void getcmdentry __P((char *, struct cmdentry *));
-#endif
-static void addcmdentry __P((char *, struct cmdentry *));
-static void defun __P((char *, union node *));
-static void unsetfunc __P((char *));
-#ifdef ASH_TYPE
-static int typecmd __P((int, char **));
-#endif
-static int commandcmd __P((int, char **));
-
-
-
-/* $NetBSD: expand.h,v 1.12 1999/07/09 03:05:50 christos Exp $ */
-struct strlist {
- struct strlist *next;
- char *text;
-};
-
-
-struct arglist {
- struct strlist *list;
- struct strlist **lastp;
-};
-
-/*
- * expandarg() flags
- */
-#define EXP_FULL 0x1 /* perform word splitting & file globbing */
-#define EXP_TILDE 0x2 /* do normal tilde expansion */
-#define EXP_VARTILDE 0x4 /* expand tildes in an assignment */
-#define EXP_REDIR 0x8 /* file glob for a redirection (1 match only) */
-#define EXP_CASE 0x10 /* keeps quotes around for CASE pattern */
-#define EXP_RECORD 0x20 /* need to record arguments for ifs breakup */
-
-
-static void expandhere __P((union node *, int));
-static void expandarg __P((union node *, struct arglist *, int));
-#ifdef ASH_MATH_SUPPORT
-static void expari __P((int));
-#endif
-#if !(defined(__GLIBC__) && !defined(FNMATCH_BROKEN) && !defined(GLOB_BROKEN))
-static int patmatch __P((char *, char *, int));
-#endif
-#if defined(__GLIBC__) && !defined(FNMATCH_BROKEN)
-#define rmescapes(p) _rmescapes((p), 0)
-static char *_rmescapes __P((char *, int));
-#else
-static void rmescapes __P((char *));
-#endif
-static int casematch __P((union node *, char *));
-
-
-#ifdef ASH_MATH_SUPPORT
-/* From arith.y */
-static int arith __P((const char *));
-static int expcmd __P((int , char **));
-static void arith_lex_reset __P((void));
-static int yylex __P((void));
-#endif
-
-
-
-
-/* $NetBSD: init.h,v 1.8 1995/05/11 21:29:14 christos Exp $ */
-static void init __P((void));
-static void reset __P((void));
-static void initshellproc __P((void));
-
-
-
-/* $NetBSD: input.h,v 1.12 2000/05/22 10:18:47 elric Exp $ */
-
-/* PEOF (the end of file marker) is defined in syntax.h */
-/*
- * The input line number. Input.c just defines this variable, and saves
- * and restores it when files are pushed and popped. The user of this
- * package must set its value.
- */
-extern int plinno;
-extern int parsenleft; /* number of characters left in input buffer */
-extern char *parsenextc; /* next character in input buffer */
-
-static char *pfgets __P((char *, int));
-static int pgetc __P((void));
-static int pgetc2 __P((void));
-static int preadbuffer __P((void));
-static void pungetc __P((void));
-static void pushstring __P((char *, int, void *));
-static void popstring __P((void));
-static void setinputfile __P((const char *, int));
-static void setinputfd __P((int, int));
-static void setinputstring __P((char *));
-static void popfile __P((void));
-static void popallfiles __P((void));
-static void closescript __P((void));
-
-#define pgetc_macro() (--parsenleft >= 0? *parsenextc++ : preadbuffer())
-
-
-
-/* $NetBSD: jobs.h,v 1.12 2000/05/22 10:18:47 elric Exp $ */
-
-/* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */
-#define FORK_FG 0
-#define FORK_BG 1
-#define FORK_NOJOB 2
-
-
-/*
- * A job structure contains information about a job. A job is either a
- * single process or a set of processes contained in a pipeline. In the
- * latter case, pidlist will be non-NULL, and will point to a -1 terminated
- * array of pids.
- */
-
-struct procstat {
- pid_t pid; /* process id */
- int status; /* status flags (defined above) */
- char *cmd; /* text of command being run */
-};
-
-
-/* states */
-#define JOBSTOPPED 1 /* all procs are stopped */
-#define JOBDONE 2 /* all procs are completed */
-
-
-struct job {
- struct procstat ps0; /* status of process */
- struct procstat *ps; /* status or processes when more than one */
- short nprocs; /* number of processes */
- short pgrp; /* process group of this job */
- char state; /* true if job is finished */
- char used; /* true if this entry is in used */
- char changed; /* true if status has changed */
-#if JOBS
- char jobctl; /* job running under job control */
-#endif
-};
-
-extern short backgndpid; /* pid of last background process */
-extern int job_warning; /* user was warned about stopped jobs */
-
-static void setjobctl __P((int));
-static int killcmd __P((int, char **));
-static int fgcmd __P((int, char **));
-static int bgcmd __P((int, char **));
-static int jobscmd __P((int, char **));
-static void showjobs __P((int));
-static int waitcmd __P((int, char **));
-struct job *makejob __P((union node *, int));
-static int forkshell __P((struct job *, union node *, int));
-static int waitforjob __P((struct job *));
-static int stoppedjobs __P((void));
-static char *commandtext __P((union node *));
-
-#if ! JOBS
-#define setjobctl(on) /* do nothing */
-#endif
-
-
-
-/* $NetBSD: machdep.h,v 1.8 1995/05/11 21:29:21 christos Exp $ */
-
-/*
- * Most machines require the value returned from malloc to be aligned
- * in some way. The following macro will get this right on many machines.
- */
-
-#ifndef ALIGN
-union align {
- int i;
- char *cp;
-};
-
-#define ALIGN(nbytes) (((nbytes) + sizeof(union align) - 1) & ~(sizeof(union align) - 1))
-#endif
-
-
-
-/* $NetBSD: mail.h,v 1.8 1995/05/11 21:29:23 christos Exp $ */
-
-static void chkmail __P((int));
-
-
-
-/* $NetBSD: main.h,v 1.8 1995/05/11 21:29:27 christos Exp $ */
-extern int rootpid; /* pid of main shell */
-extern int rootshell; /* true if we aren't a child of the main shell */
-
-static void readcmdfile __P((char *));
-static void cmdloop __P((int));
-static int dotcmd __P((int, char **));
-static int exitcmd __P((int, char **));
-
-
-
-/* $NetBSD: memalloc.h,v 1.11 2000/11/01 19:56:01 christos Exp $ */
-struct stackmark {
- struct stack_block *stackp;
- char *stacknxt;
- int stacknleft;
- struct stackmark *marknext;
-};
-
-
-extern char *stacknxt;
-extern int stacknleft;
-extern int sstrnleft;
-extern int herefd;
-
-static inline pointer ckmalloc (int sz) { return xmalloc(sz); }
-static inline pointer ckrealloc(void *p, int sz) { return xrealloc(p, sz); }
-static inline char * savestr (const char *s) { return xstrdup(s); }
-
-pointer stalloc __P((int));
-static void stunalloc __P((pointer));
-static void setstackmark __P((struct stackmark *));
-static void popstackmark __P((struct stackmark *));
-static void growstackblock __P((void));
-static void grabstackblock __P((int));
-static char *growstackstr __P((void));
-static char *makestrspace __P((size_t));
-static void ungrabstackstr __P((char *, char *));
-
-
-
-#define stackblock() stacknxt
-#define stackblocksize() stacknleft
-#define STARTSTACKSTR(p) p = stackblock(), sstrnleft = stackblocksize()
-#define STPUTC(c, p) (--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c)))
-#define CHECKSTRSPACE(n, p) { if (sstrnleft < n) p = makestrspace(n); }
-#define USTPUTC(c, p) (--sstrnleft, *p++ = (c))
-#define STACKSTRNUL(p) (sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0'))
-#define STUNPUTC(p) (++sstrnleft, --p)
-#define STTOPC(p) p[-1]
-#define STADJUST(amount, p) (p += (amount), sstrnleft -= (amount))
-#define grabstackstr(p) stalloc(stackblocksize() - sstrnleft)
-
-#define ckfree(p) free((pointer)(p))
-
-
-
-/* $NetBSD: miscbltin.h,v 1.1 1997/07/04 21:02:10 christos Exp $ */
-static int readcmd __P((int, char **));
-static int umaskcmd __P((int, char **));
-static int ulimitcmd __P((int, char **));
-
-
-
-/* $NetBSD: mystring.h,v 1.9 1995/05/11 21:29:42 christos Exp $ */
-
-extern const char snlfmt[];
-extern const char spcstr[];
-
-#if 0
-static void scopyn __P((const char *, char *, int));
-#endif
-static int prefix __P((const char *, const char *));
-static int number __P((const char *));
-static int is_number __P((const char *));
-static char *single_quote __P((const char *));
-static char *sstrdup __P((const char *));
-static int pstrcmp __P((const void *, const void *));
-static const char *const *findstring __P((const char *, const char *const *, size_t));
-
-#define equal(s1, s2) (strcmp(s1, s2) == 0)
-#define scopy(s1, s2) ((void)strcpy(s2, s1))
-
-
-/* $NetBSD: options.h,v 1.14 2001/02/04 19:52:06 christos Exp $ */
-
-struct shparam {
- int nparam; /* # of positional parameters (without $0) */
- unsigned char malloc; /* if parameter list dynamically allocated */
- char **p; /* parameter list */
- int optind; /* next parameter to be processed by getopts */
- int optoff; /* used by getopts */
-};
-
-
-
-#define eflag optlist[0].val
-#define fflag optlist[1].val
-#define Iflag optlist[2].val
-#define iflag optlist[3].val
-#define mflag optlist[4].val
-#define nflag optlist[5].val
-#define sflag optlist[6].val
-#define xflag optlist[7].val
-#define vflag optlist[8].val
-#define Vflag optlist[9].val
-#define Eflag optlist[10].val
-#define Cflag optlist[11].val
-#define aflag optlist[12].val
-#define bflag optlist[13].val
-#define uflag optlist[14].val
-#define qflag optlist[15].val
-
-#define NOPTS 16
-
-struct optent {
- const char *name;
- const char letter;
- char val;
-};
-
-extern struct optent optlist[NOPTS];
-
-
-extern char *minusc; /* argument to -c option */
-extern char *arg0; /* $0 */
-extern struct shparam shellparam; /* $@ */
-extern char **argptr; /* argument list for builtin commands */
-extern char *optionarg; /* set by nextopt */
-extern char *optptr; /* used by nextopt */
-
-static void procargs __P((int, char **));
-static void optschanged __P((void));
-static void setparam __P((char **));
-static void freeparam __P((volatile struct shparam *));
-static int shiftcmd __P((int, char **));
-static int setcmd __P((int, char **));
-#ifdef ASH_GETOPTS
-static int getoptscmd __P((int, char **));
-static int setvarsafe __P((const char *, const char *, int));
-#endif
-static int nextopt __P((const char *));
-static void getoptsreset __P((const char *));
-
-
-
-/* $NetBSD: output.h,v 1.14 1998/01/31 12:37:55 christos Exp $ */
-struct output {
-#ifdef USE_GLIBC_STDIO
- FILE *stream;
-#endif
- char *nextc;
- int nleft;
- char *buf;
- int bufsize;
- int fd;
- short flags;
-};
-
-extern struct output output;
-extern struct output errout;
-extern struct output memout;
-extern struct output *out1;
-extern struct output *out2;
-
-static void outstr __P((const char *, struct output *));
-#ifndef USE_GLIBC_STDIO
-static void outcslow __P((char, struct output *));
-#endif
-static void flushall __P((void));
-static void flushout __P((struct output *));
-static void freestdout __P((void));
-static void outfmt __P((struct output *, const char *, ...))
- __attribute__((__format__(__printf__,2,3)));
-static void out1fmt __P((const char *, ...))
- __attribute__((__format__(__printf__,1,2)));
-static void fmtstr __P((char *, size_t, const char *, ...))
- __attribute__((__format__(__printf__,3,4)));
-#ifndef USE_GLIBC_STDIO
-static void doformat __P((struct output *, const char *, va_list));
-#endif
-static int xwrite __P((int, const char *, int));
-#ifdef USE_GLIBC_STDIO
-static void initstreams __P((void));
-static void openmemout __P((void));
-static int __closememout __P((void));
-#endif
-
-#define OUTPUT_ERR 01 /* error occurred on output */
-
-#ifdef USE_GLIBC_STDIO
-#define outc(c, o) putc((c), (o)->stream)
-#define doformat(d, f, a) vfprintf((d)->stream, (f), (a))
-#else
-#define outc(c, file) (--(file)->nleft < 0? outcslow((c), (file)) : (*(file)->nextc = (c), (file)->nextc++))
-#endif
-#define out1c(c) outc((c), out1)
-#define out2c(c) outc((c), out2)
-#define out1str(s) outstr((s), out1)
-#define out2str(s) outstr((s), out2)
-#define outerr(f) ((f)->flags & OUTPUT_ERR)
-
-
-
-/* $NetBSD: parser.h,v 1.14 2000/07/27 04:09:28 cgd Exp $ */
-/* control characters in argument strings */
-#define CTLESC '\201'
-#define CTLVAR '\202'
-#define CTLENDVAR '\203'
-#define CTLBACKQ '\204'
-#define CTLQUOTE 01 /* ored with CTLBACKQ code if in quotes */
-/* CTLBACKQ | CTLQUOTE == '\205' */
-#define CTLARI '\206'
-#define CTLENDARI '\207'
-#define CTLQUOTEMARK '\210'
-
-/* variable substitution byte (follows CTLVAR) */
-#define VSTYPE 0x0f /* type of variable substitution */
-#define VSNUL 0x10 /* colon--treat the empty string as unset */
-#define VSQUOTE 0x80 /* inside double quotes--suppress splitting */
-
-/* values of VSTYPE field */
-#define VSNORMAL 0x1 /* normal variable: $var or ${var} */
-#define VSMINUS 0x2 /* ${var-text} */
-#define VSPLUS 0x3 /* ${var+text} */
-#define VSQUESTION 0x4 /* ${var?message} */
-#define VSASSIGN 0x5 /* ${var=text} */
-#define VSTRIMLEFT 0x6 /* ${var#pattern} */
-#define VSTRIMLEFTMAX 0x7 /* ${var##pattern} */
-#define VSTRIMRIGHT 0x8 /* ${var%pattern} */
-#define VSTRIMRIGHTMAX 0x9 /* ${var%%pattern} */
-#define VSLENGTH 0xa /* ${#var} */
-
-
-/*
- * NEOF is returned by parsecmd when it encounters an end of file. It
- * must be distinct from NULL, so we use the address of a variable that
- * happens to be handy.
- */
-extern int tokpushback;
-#define NEOF ((union node *)&tokpushback)
-extern int whichprompt; /* 1 == PS1, 2 == PS2 */
-extern int checkalias;
-
-
-union node *parsecmd(int);
-static void fixredir(union node *, const char *, int);
-static int goodname(char *);
-static const char *getprompt(void *);
-static int isassignment __P((const char *));
-static const char *const *findkwd __P((const char *));
-
-
-/* $NetBSD: redir.h,v 1.12 2000/05/22 10:18:47 elric Exp $ */
-/* flags passed to redirect */
-#define REDIR_PUSH 01 /* save previous values of file descriptors */
-#define REDIR_BACKQ 02 /* save the command output in memory */
-
-extern int fileno2;
-
-static void redirect __P((union node *, int));
-static void popredir __P((void));
-static int fd0_redirected_p __P((void));
-static void clearredir __P((void));
-static int dup_as_newfd __P((int, int));
-
-
-
-
-/* $NetBSD: show.h,v 1.4 1999/10/08 21:10:44 pk Exp $ */
-#ifdef DEBUG
-static void trace __P((const char *, ...));
-static void trargs __P((char **));
-static void showtree __P((union node *));
-static void trputc __P((int));
-static void trputs __P((const char *));
-static void opentrace __P((void));
-#endif
-/*
- * This file was generated by the mksyntax program.
- */
-
-#ifdef CEOF
-#undef CEOF
-#endif
-
-/* Syntax classes */
-#define CWORD 0 /* character is nothing special */
-#define CNL 1 /* newline character */
-#define CBACK 2 /* a backslash character */
-#define CSQUOTE 3 /* single quote */
-#define CDQUOTE 4 /* double quote */
-#define CENDQUOTE 5 /* a terminating quote */
-#define CBQUOTE 6 /* backwards single quote */
-#define CVAR 7 /* a dollar sign */
-#define CENDVAR 8 /* a '}' character */
-#define CLP 9 /* a left paren in arithmetic */
-#define CRP 10 /* a right paren in arithmetic */
-#define CEOF 11 /* end of file */
-#define CCTL 12 /* like CWORD, except it must be escaped */
-#define CSPCL 13 /* these terminate a word */
-#define CIGN 14 /* character should be ignored */
-
-/* Syntax classes for is_ functions */
-#define ISDIGIT 01 /* a digit */
-#define ISUPPER 02 /* an upper case letter */
-#define ISLOWER 04 /* a lower case letter */
-#define ISUNDER 010 /* an underscore */
-#define ISSPECL 020 /* the name of a special parameter */
-
-#define SYNBASE 130
-#define PEOF -130
-
-#define PEOA -129
-
-
-#define BASESYNTAX (basesyntax + SYNBASE)
-#define DQSYNTAX (dqsyntax + SYNBASE)
-#define SQSYNTAX (sqsyntax + SYNBASE)
-#define ARISYNTAX (arisyntax + SYNBASE)
-
-#define is_digit(c) ((unsigned)((c) - '0') <= 9)
-#define is_alpha(c) (((c) < CTLESC || (c) > CTLENDARI) && isalpha((unsigned char) (c)))
-#define is_name(c) (((c) < CTLESC || (c) > CTLENDARI) && ((c) == '_' || isalpha((unsigned char) (c))))
-#define is_in_name(c) (((c) < CTLESC || (c) > CTLENDARI) && ((c) == '_' || isalnum((unsigned char) (c))))
-#define is_special(c) ((is_type+SYNBASE)[c] & (ISSPECL|ISDIGIT))
-#define digit_val(c) ((c) - '0')
-
-extern const char basesyntax[];
-extern const char dqsyntax[];
-extern const char sqsyntax[];
-extern const char arisyntax[];
-extern const char is_type[];
-#define TEOF 0
-#define TNL 1
-#define TSEMI 2
-#define TBACKGND 3
-#define TAND 4
-#define TOR 5
-#define TPIPE 6
-#define TLP 7
-#define TRP 8
-#define TENDCASE 9
-#define TENDBQUOTE 10
-#define TREDIR 11
-#define TWORD 12
-#define TASSIGN 13
-#define TNOT 14
-#define TCASE 15
-#define TDO 16
-#define TDONE 17
-#define TELIF 18
-#define TELSE 19
-#define TESAC 20
-#define TFI 21
-#define TFOR 22
-#define TIF 23
-#define TIN 24
-#define TTHEN 25
-#define TUNTIL 26
-#define TWHILE 27
-#define TBEGIN 28
-#define TEND 29
-
-/* Array indicating which tokens mark the end of a list */
-static const char tokendlist[] = {
- 1,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- 1,
- 1,
- 1,
- 0,
- 0,
- 0,
- 0,
- 0,
- 1,
- 1,
- 1,
- 1,
- 1,
- 1,
- 0,
- 0,
- 0,
- 1,
- 0,
- 0,
- 0,
- 1,
-};
-
-static const char *const tokname[] = {
- "end of file",
- "newline",
- "\";\"",
- "\"&\"",
- "\"&&\"",
- "\"||\"",
- "\"|\"",
- "\"(\"",
- "\")\"",
- "\";;\"",
- "\"`\"",
- "redirection",
- "word",
- "assignment",
- "\"!\"",
- "\"case\"",
- "\"do\"",
- "\"done\"",
- "\"elif\"",
- "\"else\"",
- "\"esac\"",
- "\"fi\"",
- "\"for\"",
- "\"if\"",
- "\"in\"",
- "\"then\"",
- "\"until\"",
- "\"while\"",
- "\"{\"",
- "\"}\"",
-};
-
-#define KWDOFFSET 14
-
-static const char *const parsekwd[] = {
- "!",
- "case",
- "do",
- "done",
- "elif",
- "else",
- "esac",
- "fi",
- "for",
- "if",
- "in",
- "then",
- "until",
- "while",
- "{",
- "}"
-};
-
-
-
-
-/* $NetBSD: trap.h,v 1.14 2000/05/22 10:18:47 elric Exp $ */
-extern int pendingsigs;
-
-static int trapcmd __P((int, char **));
-static void clear_traps __P((void));
-static void setsignal __P((int));
-static void ignoresig __P((int));
-static void onsig __P((int));
-static void dotrap __P((void));
-static void setinteractive __P((int));
-static void exitshell __P((int)) __attribute__((noreturn));
-static int decode_signal __P((const char *, int));
-
-
-
-/* $NetBSD: var.h,v 1.18 2000/05/22 10:18:47 elric Exp $ */
-
-/*
- * Shell variables.
- */
-
-/* flags */
-#define VEXPORT 0x01 /* variable is exported */
-#define VREADONLY 0x02 /* variable cannot be modified */
-#define VSTRFIXED 0x04 /* variable struct is staticly allocated */
-#define VTEXTFIXED 0x08 /* text is staticly allocated */
-#define VSTACK 0x10 /* text is allocated on the stack */
-#define VUNSET 0x20 /* the variable is not set */
-#define VNOFUNC 0x40 /* don't call the callback function */
-
-
-struct var {
- struct var *next; /* next entry in hash list */
- int flags; /* flags are defined above */
- char *text; /* name=value */
- void (*func) __P((const char *));
- /* function to be called when */
- /* the variable gets set/unset */
-};
-
-
-struct localvar {
- struct localvar *next; /* next local variable in list */
- struct var *vp; /* the variable that was made local */
- int flags; /* saved flags */
- char *text; /* saved text */
-};
-
-
-extern struct localvar *localvars;
-
-#if ATTY
-extern struct var vatty;
-#endif
-extern struct var vifs;
-extern struct var vmail;
-extern struct var vmpath;
-extern struct var vpath;
-extern struct var vps1;
-extern struct var vps2;
-#ifndef SMALL
-extern struct var vterm;
-extern struct var vtermcap;
-extern struct var vhistsize;
-#endif
-
-#ifdef IFS_BROKEN
-extern const char defifsvar[];
-#define defifs (defifsvar + 4)
-#else
-extern const char defifs[];
-#endif
-extern const char defpathvar[];
-#define defpath (defpathvar + 5)
-
-/*
- * The following macros access the values of the above variables.
- * They have to skip over the name. They return the null string
- * for unset variables.
- */
-
-#define ifsval() (vifs.text + 4)
-#define ifsset() ((vifs.flags & VUNSET) == 0)
-#define mailval() (vmail.text + 5)
-#define mpathval() (vmpath.text + 9)
-#define pathval() (vpath.text + 5)
-#define ps1val() (vps1.text + 4)
-#define ps2val() (vps2.text + 4)
-#define optindval() (voptind.text + 7)
-#ifndef SMALL
-#define histsizeval() (vhistsize.text + 9)
-#define termval() (vterm.text + 5)
-#endif
-
-#if ATTY
-#define attyset() ((vatty.flags & VUNSET) == 0)
-#endif
-#define mpathset() ((vmpath.flags & VUNSET) == 0)
-
-static void initvar __P((void));
-static void setvar __P((const char *, const char *, int));
-static void setvareq __P((char *, int));
-struct strlist;
-static void listsetvar __P((struct strlist *));
-static char *lookupvar __P((const char *));
-static char *bltinlookup __P((const char *));
-static char **environment __P((void));
-static void shprocvar __P((void));
-static int showvarscmd __P((int, char **));
-static int exportcmd __P((int, char **));
-static int localcmd __P((int, char **));
-static void mklocal __P((char *));
-static void poplocalvars __P((void));
-static int setvarcmd __P((int, char **));
-static int unsetcmd __P((int, char **));
-static int unsetvar __P((const char *));
-static int varequal __P((const char *, const char *));
-
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