[perl5.git] / perl.h

/* $Header: perl.h,v 3.0.1.4 89/12/21 20:07:35 lwall Locked $
 *
 *    Copyright (c) 1989, Larry Wall
 *
 *    You may distribute under the terms of the GNU General Public License
 *    as specified in the README file that comes with the perl 3.0 kit.
 *
 * $Log:	perl.h,v $
 * Revision 3.0.1.4  89/12/21  20:07:35  lwall
 * patch7: arranged for certain registers to be restored after longjmp()
 * patch7: Configure now compiles a test program to figure out time.h fiasco
 * patch7: Configure now detects DG/UX thingies like [sg]etpgrp2 and utime.h
 * patch7: memcpy() and memset() return void in __STDC__
 * patch7: errno may now be a macro with an lvalue
 * patch7: ANSI strerror() is now supported
 * patch7: Xenix support for sys/ndir.h, cross compilation
 * 
 * Revision 3.0.1.3  89/11/17  15:28:57  lwall
 * patch5: byteorder now is a hex value
 * patch5: Configure now looks for <time.h> including <sys/time.h>
 * 
 * Revision 3.0.1.2  89/11/11  04:39:38  lwall
 * patch2: Configure may now set -DDEBUGGING
 * patch2: netinet/in.h needed sys/types.h some places
 * patch2: more <sys/time.h> and <time.h> wrangling
 * patch2: yydebug moved to where type doesn't matter  
 * 
 * Revision 3.0.1.1  89/10/26  23:17:08  lwall
 * patch1: vfork now conditionally defined based on VFORK
 * patch1: DEC risc machines have a buggy memcmp
 * patch1: perl.h now includes <netinet/in.h> if it exists
 * 
 * Revision 3.0  89/10/18  15:21:21  lwall
 * 3.0 baseline
 * 
 */

#ifdef __STDC__
#define VOLATILE volatile
#define VREG
#else
#define VOLATILE
#define VREG register
#endif

#define VOIDUSED 1
#include "config.h"

#ifdef IAMSUID
#   ifndef TAINT
#	define TAINT
#   endif
#endif

#ifndef VFORK
#   define vfork fork
#endif

#ifdef GETPGRP2
#   ifndef GETPGRP
#	define GETPGRP
#   endif
#   define getpgrp getpgrp2
#endif

#ifdef SETPGRP2
#   ifndef SETPGRP
#	define SETPGRP
#   endif
#   define setpgrp setpgrp2
#endif

#if defined(MEMCMP) && defined(mips) && BYTEORDER == 0x1234
#undef MEMCMP
#endif

#ifdef MEMCPY
#ifndef memcpy
#ifdef __STDC__
extern void *memcpy(), *memset();
#else
extern char *memcpy(), *memset();
#endif
#endif
#define bcopy(s1,s2,l) memcpy(s2,s1,l)
#define bzero(s,l) memset(s,0,l)
#endif
#ifndef BCMP		/* prefer bcmp slightly 'cuz it doesn't order */
#define bcmp(s1,s2,l) memcmp(s1,s2,l)
#endif

#include <stdio.h>
#include <ctype.h>
#include <setjmp.h>
#include <sys/param.h>	/* if this needs types.h we're still wrong */

#ifndef _TYPES_		/* If types.h defines this it's easy. */
#ifndef major		/* Does everyone's types.h define this? */
#include <sys/types.h>
#endif
#endif

#ifdef I_NETINET_IN
#include <netinet/in.h>
#endif

#include <sys/stat.h>

#ifdef I_TIME
#   include <time.h>
#endif

#ifdef I_SYSTIME
#   ifdef SYSTIMEKERNEL
#	define KERNEL
#   endif
#   include <sys/time.h>
#   ifdef SYSTIMEKERNEL
#	undef KERNEL
#   endif
#endif

#include <sys/times.h>

#if defined(STRERROR) && (!defined(MKDIR) || !defined(RMDIR))
#undef STRERROR
#endif

#include <errno.h>
#ifndef errno
extern int errno;     /* ANSI allows errno to be an lvalue expr */
#endif

#ifdef STRERROR
char *strerror();
#else
extern int sys_nerr;
extern char *sys_errlist[];
#define strerror(e) ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
#endif

#ifdef I_SYSIOCTL
#ifndef _IOCTL_
#include <sys/ioctl.h>
#endif
#endif

#if defined(mc300) || defined(mc500) || defined(mc700)	/* MASSCOMP */
#ifdef SOCKETPAIR
#undef SOCKETPAIR
#endif
#ifdef NDBM
#undef NDBM
#endif
#endif

#ifdef NDBM
#include <ndbm.h>
#define SOME_DBM
#ifdef ODBM
#undef ODBM
#endif
#else
#ifdef ODBM
#ifdef NULL
#undef NULL		/* suppress redefinition message */
#endif
#include <dbm.h>
#ifdef NULL
#undef NULL
#endif
#define NULL 0		/* silly thing is, we don't even use this */
#define SOME_DBM
#define dbm_fetch(db,dkey) fetch(dkey)
#define dbm_delete(db,dkey) delete(dkey)
#define dbm_store(db,dkey,dcontent,flags) store(dkey,dcontent)
#define dbm_close(db) dbmclose()
#define dbm_firstkey(db) firstkey()
#endif /* ODBM */
#endif /* NDBM */
#ifdef SOME_DBM
EXT char *dbmkey;
EXT int dbmlen;
#endif

#if INTSIZE == 2
#define htoni htons
#define ntohi ntohs
#else
#define htoni htonl
#define ntohi ntohl
#endif

#if defined(I_DIRENT) && !defined(xenix)
#   include <dirent.h>
#   define DIRENT dirent
#else
#   ifdef I_SYSDIR
#	ifdef hp9000s500
#	    include <ndir.h>	/* may be wrong in the future */
#	else
#	    include <sys/dir.h>
#	endif
#	define DIRENT direct
#   else
#	ifdef I_SYSNDIR
#	    include <sys/ndir.h>
#	    define DIRENT direct
#	endif
#   endif
#endif

typedef struct arg ARG;
typedef struct cmd CMD;
typedef struct formcmd FCMD;
typedef struct scanpat SPAT;
typedef struct stio STIO;
typedef struct sub SUBR;
typedef struct string STR;
typedef struct atbl ARRAY;
typedef struct htbl HASH;
typedef struct regexp REGEXP;
typedef struct stabptrs STBP;
typedef struct stab STAB;

#include "handy.h"
#include "regexp.h"
#include "str.h"
#include "util.h"
#include "form.h"
#include "stab.h"
#include "spat.h"
#include "arg.h"
#include "cmd.h"
#include "array.h"
#include "hash.h"

#if defined(iAPX286) || defined(M_I286) || defined(I80286)
#   define I286
#endif

#ifndef	__STDC__
#ifdef CHARSPRINTF
    char *sprintf();
#else
    int sprintf();
#endif
#endif

EXT char *Yes INIT("1");
EXT char *No INIT("");

/* "gimme" values */

/* Note: cmd.c assumes that it can use && to produce one of these values! */
#define G_SCALAR 0
#define G_ARRAY 1

#ifdef CRIPPLED_CC
int str_true();
#else /* !CRIPPLED_CC */
#define str_true(str) (Str = (str), \
	(Str->str_pok ? \
	    ((*Str->str_ptr > '0' || \
	      Str->str_cur > 1 || \
	      (Str->str_cur && *Str->str_ptr != '0')) ? 1 : 0) \
	: \
	    (Str->str_nok ? (Str->str_u.str_nval != 0.0) : 0 ) ))
#endif /* CRIPPLED_CC */

#ifdef DEBUGGING
#define str_peek(str) (Str = (str), \
	(Str->str_pok ? \
	    Str->str_ptr : \
	    (Str->str_nok ? \
		(sprintf(tokenbuf,"num(%g)",Str->str_u.str_nval), \
		    (char*)tokenbuf) : \
		"" )))
#endif

#ifdef CRIPPLED_CC
char *str_get();
#else
#ifdef TAINT
#define str_get(str) (Str = (str), tainted |= Str->str_tainted, \
	(Str->str_pok ? Str->str_ptr : str_2ptr(Str)))
#else
#define str_get(str) (Str = (str), (Str->str_pok ? Str->str_ptr : str_2ptr(Str)))
#endif /* TAINT */
#endif /* CRIPPLED_CC */

#ifdef CRIPPLED_CC
double str_gnum();
#else /* !CRIPPLED_CC */
#ifdef TAINT
#define str_gnum(str) (Str = (str), tainted |= Str->str_tainted, \
	(Str->str_nok ? Str->str_u.str_nval : str_2num(Str)))
#else /* !TAINT */
#define str_gnum(str) (Str = (str), (Str->str_nok ? Str->str_u.str_nval : str_2num(Str)))
#endif /* TAINT*/
#endif /* CRIPPLED_CC */
EXT STR *Str;

#define GROWSTR(pp,lp,len) if (*(lp) < (len)) growstr(pp,lp,len)

#define STR_GROW(str,len) if ((str)->str_len < (len)) str_grow(str,len)

#ifndef BYTEORDER
#define BYTEORDER 0x1234
#endif

#if defined(htonl) && !defined(HTONL)
#define HTONL
#endif
#if defined(htons) && !defined(HTONS)
#define HTONS
#endif
#if defined(ntohl) && !defined(NTOHL)
#define NTOHL
#endif
#if defined(ntohs) && !defined(NTOHS)
#define NTOHS
#endif
#ifndef HTONL
#if (BYTEORDER != 0x4321) && (BYTEORDER != 0x87654321)
#define HTONS
#define HTONL
#define NTOHS
#define NTOHL
#define MYSWAP
#define htons my_swap
#define htonl my_htonl
#define ntohs my_swap
#define ntohl my_ntohl
#endif
#else
#if (BYTEORDER == 0x4321) || (BYTEORDER == 0x87654321)
#undef HTONS
#undef HTONL
#undef NTOHS
#undef NTOHL
#endif
#endif

CMD *add_label();
CMD *block_head();
CMD *append_line();
CMD *make_acmd();
CMD *make_ccmd();
CMD *make_icmd();
CMD *invert();
CMD *addcond();
CMD *addloop();
CMD *wopt();
CMD *over();

STAB *stabent();
STAB *genstab();

ARG *stab2arg();
ARG *op_new();
ARG *make_op();
ARG *make_match();
ARG *make_split();
ARG *rcatmaybe();
ARG *listish();
ARG *maybelistish();
ARG *localize();
ARG *fixeval();
ARG *jmaybe();
ARG *l();
ARG *fixl();
ARG *mod_match();
ARG *make_list();
ARG *cmd_to_arg();
ARG *addflags();
ARG *hide_ary();
ARG *cval_to_arg();

STR *str_new();
STR *stab_str();

int do_each();
int do_subr();
int do_match();
int do_unpack();
int eval();		/* this evaluates expressions */
int do_eval();		/* this evaluates eval operator */
int do_assign();

SUBR *make_sub();

FCMD *load_format();

char *scanpat();
char *scansubst();
char *scantrans();
char *scanstr();
char *scanreg();
char *str_append_till();
char *str_gets();
char *str_grow();

bool do_open();
bool do_close();
bool do_print();
bool do_aprint();
bool do_exec();
bool do_aexec();

int do_subst();
int cando();
int ingroup();

void str_replace();
void str_inc();
void str_dec();
void str_free();
void stab_clear();
void do_join();
void do_sprintf();
void do_accept();
void do_vecset();
void savelist();
void saveitem();
void saveint();
void savelong();
void savesptr();
void savehptr();
void restorelist();
HASH *savehash();
ARRAY *saveary();

EXT line_t line INIT(0);
EXT line_t subline INIT(0);
EXT STR *subname INIT(Nullstr);
EXT int arybase INIT(0);

struct outrec {
    line_t  o_lines;
    char    *o_str;
    int     o_len;
};

EXT struct outrec outrec;
EXT struct outrec toprec;

EXT STAB *stdinstab INIT(Nullstab);
EXT STAB *last_in_stab INIT(Nullstab);
EXT STAB *defstab INIT(Nullstab);
EXT STAB *argvstab INIT(Nullstab);
EXT STAB *envstab INIT(Nullstab);
EXT STAB *sigstab INIT(Nullstab);
EXT STAB *defoutstab INIT(Nullstab);
EXT STAB *curoutstab INIT(Nullstab);
EXT STAB *argvoutstab INIT(Nullstab);
EXT STAB *incstab INIT(Nullstab);
EXT STAB *leftstab INIT(Nullstab);
EXT STAB *amperstab INIT(Nullstab);
EXT STAB *rightstab INIT(Nullstab);
EXT STAB *DBstab INIT(Nullstab);
EXT STAB *DBsub INIT(Nullstab);

EXT HASH *defstash;		/* main symbol table */
EXT HASH *curstash;		/* symbol table for current package */
EXT HASH *debstash;		/* symbol table for perldb package */

EXT STR *curstname;		/* name of current package */

EXT STR *freestrroot INIT(Nullstr);
EXT STR *lastretstr INIT(Nullstr);
EXT STR *DBsingle INIT(Nullstr);

EXT int lastspbase;
EXT int lastsize;

EXT char *filename;
EXT char *origfilename;
EXT FILE *rsfp;
EXT char buf[1024];
EXT char *bufptr;
EXT char *oldbufptr;
EXT char *oldoldbufptr;
EXT char *bufend;

EXT STR *linestr INIT(Nullstr);

EXT char record_separator INIT('\n');
EXT int rslen INIT(1);
EXT char *ofs INIT(Nullch);
EXT int ofslen INIT(0);
EXT char *ors INIT(Nullch);
EXT int orslen INIT(0);
EXT char *ofmt INIT(Nullch);
EXT char *inplace INIT(Nullch);
EXT char *nointrp INIT("");

EXT bool preprocess INIT(FALSE);
EXT bool minus_n INIT(FALSE);
EXT bool minus_p INIT(FALSE);
EXT bool minus_a INIT(FALSE);
EXT bool doswitches INIT(FALSE);
EXT bool dowarn INIT(FALSE);
EXT bool allstabs INIT(FALSE);	/* init all customary symbols in symbol table?*/
EXT bool sawampersand INIT(FALSE);	/* must save all match strings */
EXT bool sawstudy INIT(FALSE);		/* do fbminstr on all strings */
EXT bool sawi INIT(FALSE);		/* study must assume case insensitive */
EXT bool sawvec INIT(FALSE);

#ifdef CSH
char *cshname INIT(CSH);
int cshlen INIT(0);
#endif /* CSH */

#ifdef TAINT
EXT bool tainted INIT(FALSE);		/* using variables controlled by $< */
#endif

#define TMPPATH "/tmp/perl-eXXXXXX"
EXT char *e_tmpname;
EXT FILE *e_fp INIT(Nullfp);

EXT char tokenbuf[256];
EXT int expectterm INIT(TRUE);		/* how to interpret ambiguous tokens */
EXT int in_eval INIT(FALSE);		/* trap fatal errors? */
EXT int multiline INIT(0);		/* $*--do strings hold >1 line? */
EXT int forkprocess;			/* so do_open |- can return proc# */
EXT int do_undump INIT(0);		/* -u or dump seen? */
EXT int error_count INIT(0);		/* how many errors so far, max 10 */
EXT int multi_start INIT(0);		/* 1st line of multi-line string */
EXT int multi_end INIT(0);		/* last line of multi-line string */
EXT int multi_open INIT(0);		/* delimiter of said string */
EXT int multi_close INIT(0);		/* delimiter of said string */

FILE *popen();
/* char *str_get(); */
STR *interp();
void free_arg();
STIO *stio_new();

EXT struct stat statbuf;
EXT struct stat statcache;
STAB *statstab INIT(Nullstab);
STR *statname;
EXT struct tms timesbuf;
EXT int uid;
EXT int euid;
EXT int gid;
EXT int egid;
UIDTYPE getuid();
UIDTYPE geteuid();
GIDTYPE getgid();
GIDTYPE getegid();
EXT int unsafe;

#ifdef DEBUGGING
EXT int debug INIT(0);
EXT int dlevel INIT(0);
EXT int dlmax INIT(128);
EXT char *debname;
EXT char *debdelim;
#define YYDEBUG 1
#endif
EXT int perldb INIT(0);

EXT line_t cmdline INIT(NOLINE);

EXT STR str_undef;
EXT STR str_no;
EXT STR str_yes;

/* runtime control stuff */

EXT struct loop {
    char *loop_label;		/* what the loop was called, if anything */
    int loop_sp;		/* stack pointer to copy stuff down to */
    jmp_buf loop_env;
} *loop_stack;

EXT int loop_ptr INIT(-1);
EXT int loop_max INIT(128);

EXT jmp_buf top_env;
EXT jmp_buf eval_env;

EXT char *goto_targ INIT(Nullch);	/* cmd_exec gets strange when set */

EXT ARRAY *stack;		/* THE STACK */

EXT ARRAY *savestack;		/* to save non-local values on */

EXT ARRAY *tosave;		/* strings to save on recursive subroutine */

EXT ARRAY *lineary;		/* lines of script for debugger */

EXT ARRAY *pidstatary;		/* keep pids and statuses by fd for mypopen */

double atof();
long time();
struct tm *gmtime(), *localtime();
char *mktemp();
char *index(), *rindex();
char *strcpy(), *strcat();

#ifdef EUNICE
#define UNLINK unlnk
int unlnk();
#else
#define UNLINK unlink
#endif

#ifndef SETREUID
#ifdef SETRESUID
#define setreuid(r,e) setresuid(r,e,-1)
#define SETREUID
#endif
#endif
#ifndef SETREGID
#ifdef SETRESGID
#define setregid(r,e) setresgid(r,e,-1)
#define SETREGID
#endif
#endif
Commit	Line	Data
663a0e37	1	/* $Header: perl.h,v 3.0.1.4 89/12/21 20:07:35 lwall Locked $
a687059c LW	2	*
	3	* Copyright (c) 1989, Larry Wall
	4	*
	5	* You may distribute under the terms of the GNU General Public License
	6	* as specified in the README file that comes with the perl 3.0 kit.
8d063cd8 LW	7	*
8d063cd8 LW	8	* $Log: perl.h,v $
663a0e37 LW	9	* Revision 3.0.1.4 89/12/21 20:07:35 lwall
	10	* patch7: arranged for certain registers to be restored after longjmp()
	11	* patch7: Configure now compiles a test program to figure out time.h fiasco
	12	* patch7: Configure now detects DG/UX thingies like [sg]etpgrp2 and utime.h
	13	* patch7: memcpy() and memset() return void in __STDC__
	14	* patch7: errno may now be a macro with an lvalue
	15	* patch7: ANSI strerror() is now supported
	16	* patch7: Xenix support for sys/ndir.h, cross compilation
	17	*
ffed7fef LW	18	* Revision 3.0.1.3 89/11/17 15:28:57 lwall
	19	* patch5: byteorder now is a hex value
	20	* patch5: Configure now looks for <time.h> including <sys/time.h>
	21	*
ae986130 LW	22	* Revision 3.0.1.2 89/11/11 04:39:38 lwall
	23	* patch2: Configure may now set -DDEBUGGING
	24	* patch2: netinet/in.h needed sys/types.h some places
	25	* patch2: more <sys/time.h> and <time.h> wrangling
	26	* patch2: yydebug moved to where type doesn't matter
	27	*
03a14243 LW	28	* Revision 3.0.1.1 89/10/26 23:17:08 lwall
	29	* patch1: vfork now conditionally defined based on VFORK
	30	* patch1: DEC risc machines have a buggy memcmp
	31	* patch1: perl.h now includes <netinet/in.h> if it exists
	32	*
a687059c LW	33	* Revision 3.0 89/10/18 15:21:21 lwall
a687059c LW	34	* 3.0 baseline
8d063cd8 LW	35	*
	36	*/
	37
663a0e37 LW	38	#ifdef __STDC__
	39	#define VOLATILE volatile
	40	#define VREG
	41	#else
	42	#define VOLATILE
	43	#define VREG register
	44	#endif
	45
8d063cd8 LW	46	#define VOIDUSED 1
	47	#include "config.h"
	48
a687059c LW	49	#ifdef IAMSUID
	50	# ifndef TAINT
	51	# define TAINT
	52	# endif
	53	#endif
	54
03a14243 LW	55	#ifndef VFORK
	56	# define vfork fork
	57	#endif
	58
663a0e37 LW	59	#ifdef GETPGRP2
	60	# ifndef GETPGRP
	61	# define GETPGRP
	62	# endif
	63	# define getpgrp getpgrp2
	64	#endif
	65
	66	#ifdef SETPGRP2
	67	# ifndef SETPGRP
	68	# define SETPGRP
	69	# endif
	70	# define setpgrp setpgrp2
	71	#endif
	72
ffed7fef	73	#if defined(MEMCMP) && defined(mips) && BYTEORDER == 0x1234
03a14243 LW	74	#undef MEMCMP
	75	#endif
	76
378cc40b	77	#ifdef MEMCPY
663a0e37 LW	78	#ifndef memcpy
	79	#ifdef __STDC__
	80	extern void memcpy(), memset();
	81	#else
378cc40b	82	extern char memcpy(), memset();
663a0e37 LW	83	#endif
663a0e37 LW	84	#endif
a687059c LW	85	#define bcopy(s1,s2,l) memcpy(s2,s1,l)
	86	#define bzero(s,l) memset(s,0,l)
	87	#endif
	88	#ifndef BCMP /* prefer bcmp slightly 'cuz it doesn't order */
	89	#define bcmp(s1,s2,l) memcmp(s1,s2,l)
8d063cd8 LW	90	#endif
	91
	92	#include <stdio.h>
	93	#include <ctype.h>
	94	#include <setjmp.h>
378cc40b LW	95	#include <sys/param.h> /* if this needs types.h we're still wrong */
	96
	97	#ifndef _TYPES_ /* If types.h defines this it's easy. */
	98	#ifndef major /* Does everyone's types.h define this? */
8d063cd8	99	#include <sys/types.h>
378cc40b LW	100	#endif
	101	#endif
	102
ae986130 LW	103	#ifdef I_NETINET_IN
	104	#include <netinet/in.h>
	105	#endif
	106
8d063cd8	107	#include <sys/stat.h>
135863df	108
663a0e37 LW	109	#ifdef I_TIME
663a0e37 LW	110	# include <time.h>
ffed7fef	111	#endif
663a0e37 LW	112
	113	#ifdef I_SYSTIME
	114	# ifdef SYSTIMEKERNEL
	115	# define KERNEL
	116	# endif
	117	# include <sys/time.h>
	118	# ifdef SYSTIMEKERNEL
	119	# undef KERNEL
	120	# endif
a687059c	121	#endif
135863df	122
8d063cd8 LW	123	#include <sys/times.h>
8d063cd8 LW	124
663a0e37 LW	125	#if defined(STRERROR) && (!defined(MKDIR) \|\| !defined(RMDIR))
	126	#undef STRERROR
	127	#endif
	128
	129	#include <errno.h>
	130	#ifndef errno
	131	extern int errno; /* ANSI allows errno to be an lvalue expr */
	132	#endif
	133
	134	#ifdef STRERROR
	135	char *strerror();
	136	#else
	137	extern int sys_nerr;
	138	extern char *sys_errlist[];
	139	#define strerror(e) ((e) < 0 \|\| (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
	140	#endif
	141
a687059c LW	142	#ifdef I_SYSIOCTL
	143	#ifndef _IOCTL_
	144	#include <sys/ioctl.h>
	145	#endif
	146	#endif
	147
	148	#if defined(mc300) \|\| defined(mc500) \|\| defined(mc700) /* MASSCOMP */
	149	#ifdef SOCKETPAIR
	150	#undef SOCKETPAIR
	151	#endif
	152	#ifdef NDBM
	153	#undef NDBM
	154	#endif
	155	#endif
	156
	157	#ifdef NDBM
	158	#include <ndbm.h>
	159	#define SOME_DBM
ae986130 LW	160	#ifdef ODBM
	161	#undef ODBM
	162	#endif
a687059c LW	163	#else
	164	#ifdef ODBM
	165	#ifdef NULL
	166	#undef NULL /* suppress redefinition message */
	167	#endif
	168	#include <dbm.h>
	169	#ifdef NULL
	170	#undef NULL
	171	#endif
	172	#define NULL 0 /* silly thing is, we don't even use this */
	173	#define SOME_DBM
	174	#define dbm_fetch(db,dkey) fetch(dkey)
	175	#define dbm_delete(db,dkey) delete(dkey)
	176	#define dbm_store(db,dkey,dcontent,flags) store(dkey,dcontent)
	177	#define dbm_close(db) dbmclose()
	178	#define dbm_firstkey(db) firstkey()
	179	#endif /* ODBM */
	180	#endif /* NDBM */
	181	#ifdef SOME_DBM
	182	EXT char *dbmkey;
	183	EXT int dbmlen;
	184	#endif
	185
	186	#if INTSIZE == 2
	187	#define htoni htons
	188	#define ntohi ntohs
	189	#else
	190	#define htoni htonl
	191	#define ntohi ntohl
	192	#endif
	193
663a0e37 LW	194	#if defined(I_DIRENT) && !defined(xenix)
	195	# include <dirent.h>
	196	# define DIRENT dirent
ae986130	197	#else
663a0e37 LW	198	# ifdef I_SYSDIR
	199	# ifdef hp9000s500
	200	# include <ndir.h> /* may be wrong in the future */
	201	# else
	202	# include <sys/dir.h>
	203	# endif
	204	# define DIRENT direct
	205	# else
	206	# ifdef I_SYSNDIR
	207	# include <sys/ndir.h>
	208	# define DIRENT direct
	209	# endif
	210	# endif
a687059c LW	211	#endif
a687059c LW	212
8d063cd8 LW	213	typedef struct arg ARG;
	214	typedef struct cmd CMD;
	215	typedef struct formcmd FCMD;
	216	typedef struct scanpat SPAT;
8d063cd8	217	typedef struct stio STIO;
378cc40b	218	typedef struct sub SUBR;
8d063cd8 LW	219	typedef struct string STR;
	220	typedef struct atbl ARRAY;
	221	typedef struct htbl HASH;
378cc40b	222	typedef struct regexp REGEXP;
a687059c LW	223	typedef struct stabptrs STBP;
a687059c LW	224	typedef struct stab STAB;
8d063cd8	225
378cc40b LW	226	#include "handy.h"
378cc40b LW	227	#include "regexp.h"
8d063cd8	228	#include "str.h"
378cc40b	229	#include "util.h"
8d063cd8 LW	230	#include "form.h"
	231	#include "stab.h"
	232	#include "spat.h"
	233	#include "arg.h"
	234	#include "cmd.h"
	235	#include "array.h"
	236	#include "hash.h"
	237
a687059c LW	238	#if defined(iAPX286) \|\| defined(M_I286) \|\| defined(I80286)
	239	# define I286
	240	#endif
	241
	242	#ifndef __STDC__
135863df AB	243	#ifdef CHARSPRINTF
	244	char *sprintf();
	245	#else
	246	int sprintf();
	247	#endif
a687059c	248	#endif
135863df	249
8d063cd8 LW	250	EXT char *Yes INIT("1");
	251	EXT char *No INIT("");
	252
a687059c LW	253	/* "gimme" values */
	254
	255	/* Note: cmd.c assumes that it can use && to produce one of these values! */
	256	#define G_SCALAR 0
	257	#define G_ARRAY 1
	258
	259	#ifdef CRIPPLED_CC
	260	int str_true();
	261	#else /* !CRIPPLED_CC */
	262	#define str_true(str) (Str = (str), \
	263	(Str->str_pok ? \
	264	((*Str->str_ptr > '0' \|\| \
	265	Str->str_cur > 1 \|\| \
	266	(Str->str_cur && *Str->str_ptr != '0')) ? 1 : 0) \
	267	: \
	268	(Str->str_nok ? (Str->str_u.str_nval != 0.0) : 0 ) ))
	269	#endif /* CRIPPLED_CC */
8d063cd8	270
135863df	271	#ifdef DEBUGGING
a687059c LW	272	#define str_peek(str) (Str = (str), \
	273	(Str->str_pok ? \
	274	Str->str_ptr : \
	275	(Str->str_nok ? \
	276	(sprintf(tokenbuf,"num(%g)",Str->str_u.str_nval), \
	277	(char*)tokenbuf) : \
	278	"" )))
135863df AB	279	#endif
135863df AB	280
a687059c LW	281	#ifdef CRIPPLED_CC
	282	char *str_get();
	283	#else
	284	#ifdef TAINT
	285	#define str_get(str) (Str = (str), tainted \|= Str->str_tainted, \
	286	(Str->str_pok ? Str->str_ptr : str_2ptr(Str)))
	287	#else
8d063cd8	288	#define str_get(str) (Str = (str), (Str->str_pok ? Str->str_ptr : str_2ptr(Str)))
a687059c LW	289	#endif /* TAINT */
	290	#endif /* CRIPPLED_CC */
	291
	292	#ifdef CRIPPLED_CC
	293	double str_gnum();
	294	#else /* !CRIPPLED_CC */
	295	#ifdef TAINT
	296	#define str_gnum(str) (Str = (str), tainted \|= Str->str_tainted, \
	297	(Str->str_nok ? Str->str_u.str_nval : str_2num(Str)))
	298	#else /* !TAINT */
	299	#define str_gnum(str) (Str = (str), (Str->str_nok ? Str->str_u.str_nval : str_2num(Str)))
	300	#endif /* TAINT*/
	301	#endif /* CRIPPLED_CC */
8d063cd8 LW	302	EXT STR *Str;
	303
	304	#define GROWSTR(pp,lp,len) if (*(lp) < (len)) growstr(pp,lp,len)
	305
a687059c LW	306	#define STR_GROW(str,len) if ((str)->str_len < (len)) str_grow(str,len)
	307
	308	#ifndef BYTEORDER
ffed7fef	309	#define BYTEORDER 0x1234
a687059c LW	310	#endif
a687059c LW	311
ae986130 LW	312	#if defined(htonl) && !defined(HTONL)
	313	#define HTONL
	314	#endif
	315	#if defined(htons) && !defined(HTONS)
	316	#define HTONS
	317	#endif
	318	#if defined(ntohl) && !defined(NTOHL)
	319	#define NTOHL
	320	#endif
	321	#if defined(ntohs) && !defined(NTOHS)
	322	#define NTOHS
	323	#endif
a687059c	324	#ifndef HTONL
ffed7fef	325	#if (BYTEORDER != 0x4321) && (BYTEORDER != 0x87654321)
a687059c LW	326	#define HTONS
	327	#define HTONL
	328	#define NTOHS
	329	#define NTOHL
	330	#define MYSWAP
	331	#define htons my_swap
	332	#define htonl my_htonl
	333	#define ntohs my_swap
	334	#define ntohl my_ntohl
	335	#endif
	336	#else
ffed7fef	337	#if (BYTEORDER == 0x4321) \|\| (BYTEORDER == 0x87654321)
a687059c LW	338	#undef HTONS
	339	#undef HTONL
	340	#undef NTOHS
	341	#undef NTOHL
	342	#endif
	343	#endif
	344
8d063cd8 LW	345	CMD *add_label();
	346	CMD *block_head();
	347	CMD *append_line();
	348	CMD *make_acmd();
	349	CMD *make_ccmd();
a687059c	350	CMD *make_icmd();
8d063cd8 LW	351	CMD *invert();
	352	CMD *addcond();
	353	CMD *addloop();
	354	CMD *wopt();
378cc40b	355	CMD *over();
8d063cd8	356
8d063cd8	357	STAB *stabent();
378cc40b	358	STAB *genstab();
8d063cd8	359
378cc40b	360	ARG *stab2arg();
8d063cd8 LW	361	ARG *op_new();
8d063cd8 LW	362	ARG *make_op();
8d063cd8 LW	363	ARG *make_match();
8d063cd8 LW	364	ARG *make_split();
a687059c	365	ARG *rcatmaybe();
378cc40b	366	ARG *listish();
a687059c	367	ARG *maybelistish();
378cc40b	368	ARG *localize();
a687059c LW	369	ARG *fixeval();
a687059c LW	370	ARG *jmaybe();
378cc40b	371	ARG *l();
a687059c	372	ARG *fixl();
378cc40b LW	373	ARG *mod_match();
	374	ARG *make_list();
	375	ARG *cmd_to_arg();
	376	ARG *addflags();
	377	ARG *hide_ary();
	378	ARG *cval_to_arg();
8d063cd8	379
8d063cd8 LW	380	STR *str_new();
8d063cd8 LW	381	STR *stab_str();
a687059c LW	382
	383	int do_each();
	384	int do_subr();
	385	int do_match();
	386	int do_unpack();
	387	int eval(); /* this evaluates expressions */
	388	int do_eval(); /* this evaluates eval operator */
	389	int do_assign();
378cc40b LW	390
378cc40b LW	391	SUBR *make_sub();
8d063cd8 LW	392
	393	FCMD *load_format();
	394
	395	char *scanpat();
	396	char *scansubst();
	397	char *scantrans();
	398	char *scanstr();
	399	char *scanreg();
8d063cd8 LW	400	char *str_append_till();
8d063cd8 LW	401	char *str_gets();
a687059c	402	char *str_grow();
8d063cd8	403
8d063cd8 LW	404	bool do_open();
	405	bool do_close();
	406	bool do_print();
378cc40b LW	407	bool do_aprint();
	408	bool do_exec();
	409	bool do_aexec();
8d063cd8 LW	410
8d063cd8 LW	411	int do_subst();
378cc40b LW	412	int cando();
378cc40b LW	413	int ingroup();
8d063cd8	414
378cc40b LW	415	void str_replace();
	416	void str_inc();
	417	void str_dec();
8d063cd8	418	void str_free();
a687059c	419	void stab_clear();
378cc40b	420	void do_join();
378cc40b	421	void do_sprintf();
a687059c LW	422	void do_accept();
	423	void do_vecset();
	424	void savelist();
	425	void saveitem();
	426	void saveint();
	427	void savelong();
	428	void savesptr();
	429	void savehptr();
	430	void restorelist();
	431	HASH *savehash();
	432	ARRAY *saveary();
378cc40b LW	433
378cc40b LW	434	EXT line_t line INIT(0);
a687059c LW	435	EXT line_t subline INIT(0);
a687059c LW	436	EXT STR *subname INIT(Nullstr);
8d063cd8 LW	437	EXT int arybase INIT(0);
	438
	439	struct outrec {
378cc40b LW	440	line_t o_lines;
	441	char *o_str;
	442	int o_len;
8d063cd8 LW	443	};
	444
	445	EXT struct outrec outrec;
	446	EXT struct outrec toprec;
	447
a687059c	448	EXT STAB *stdinstab INIT(Nullstab);
8d063cd8 LW	449	EXT STAB *last_in_stab INIT(Nullstab);
	450	EXT STAB *defstab INIT(Nullstab);
	451	EXT STAB *argvstab INIT(Nullstab);
	452	EXT STAB *envstab INIT(Nullstab);
	453	EXT STAB *sigstab INIT(Nullstab);
	454	EXT STAB *defoutstab INIT(Nullstab);
	455	EXT STAB *curoutstab INIT(Nullstab);
	456	EXT STAB *argvoutstab INIT(Nullstab);
378cc40b	457	EXT STAB *incstab INIT(Nullstab);
a687059c LW	458	EXT STAB *leftstab INIT(Nullstab);
	459	EXT STAB *amperstab INIT(Nullstab);
	460	EXT STAB *rightstab INIT(Nullstab);
	461	EXT STAB *DBstab INIT(Nullstab);
	462	EXT STAB *DBsub INIT(Nullstab);
	463
	464	EXT HASH defstash; / main symbol table */
	465	EXT HASH curstash; / symbol table for current package */
	466	EXT HASH debstash; / symbol table for perldb package */
	467
	468	EXT STR curstname; / name of current package */
8d063cd8 LW	469
8d063cd8 LW	470	EXT STR *freestrroot INIT(Nullstr);
378cc40b	471	EXT STR *lastretstr INIT(Nullstr);
a687059c LW	472	EXT STR *DBsingle INIT(Nullstr);
	473
	474	EXT int lastspbase;
	475	EXT int lastsize;
8d063cd8	476
378cc40b LW	477	EXT char *filename;
378cc40b LW	478	EXT char *origfilename;
8d063cd8 LW	479	EXT FILE *rsfp;
8d063cd8 LW	480	EXT char buf[1024];
a687059c LW	481	EXT char *bufptr;
	482	EXT char *oldbufptr;
	483	EXT char *oldoldbufptr;
	484	EXT char *bufend;
8d063cd8 LW	485
	486	EXT STR *linestr INIT(Nullstr);
	487
	488	EXT char record_separator INIT('\n');
a687059c	489	EXT int rslen INIT(1);
8d063cd8	490	EXT char *ofs INIT(Nullch);
a687059c	491	EXT int ofslen INIT(0);
8d063cd8	492	EXT char *ors INIT(Nullch);
a687059c	493	EXT int orslen INIT(0);
8d063cd8 LW	494	EXT char *ofmt INIT(Nullch);
8d063cd8 LW	495	EXT char *inplace INIT(Nullch);
a687059c	496	EXT char *nointrp INIT("");
8d063cd8	497
378cc40b LW	498	EXT bool preprocess INIT(FALSE);
	499	EXT bool minus_n INIT(FALSE);
	500	EXT bool minus_p INIT(FALSE);
	501	EXT bool minus_a INIT(FALSE);
	502	EXT bool doswitches INIT(FALSE);
	503	EXT bool dowarn INIT(FALSE);
	504	EXT bool allstabs INIT(FALSE); /* init all customary symbols in symbol table?*/
	505	EXT bool sawampersand INIT(FALSE); /* must save all match strings */
	506	EXT bool sawstudy INIT(FALSE); /* do fbminstr on all strings */
a687059c LW	507	EXT bool sawi INIT(FALSE); /* study must assume case insensitive */
	508	EXT bool sawvec INIT(FALSE);
	509
ae986130 LW	510	#ifdef CSH
	511	char *cshname INIT(CSH);
	512	int cshlen INIT(0);
	513	#endif /* CSH */
a687059c LW	514
	515	#ifdef TAINT
	516	EXT bool tainted INIT(FALSE); /* using variables controlled by $< */
	517	#endif
378cc40b LW	518
	519	#define TMPPATH "/tmp/perl-eXXXXXX"
	520	EXT char *e_tmpname;
	521	EXT FILE *e_fp INIT(Nullfp);
	522
8d063cd8	523	EXT char tokenbuf[256];
a687059c LW	524	EXT int expectterm INIT(TRUE); /* how to interpret ambiguous tokens */
	525	EXT int in_eval INIT(FALSE); /* trap fatal errors? */
	526	EXT int multiline INIT(0); /* $--do strings hold >1 line? /
	527	EXT int forkprocess; /* so do_open \|- can return proc# */
	528	EXT int do_undump INIT(0); /* -u or dump seen? */
	529	EXT int error_count INIT(0); /* how many errors so far, max 10 */
	530	EXT int multi_start INIT(0); /* 1st line of multi-line string */
	531	EXT int multi_end INIT(0); /* last line of multi-line string */
	532	EXT int multi_open INIT(0); /* delimiter of said string */
	533	EXT int multi_close INIT(0); /* delimiter of said string */
8d063cd8 LW	534
	535	FILE *popen();
	536	/* char str_get(); /
	537	STR *interp();
	538	void free_arg();
	539	STIO *stio_new();
	540
	541	EXT struct stat statbuf;
a687059c LW	542	EXT struct stat statcache;
	543	STAB *statstab INIT(Nullstab);
	544	STR *statname;
8d063cd8	545	EXT struct tms timesbuf;
378cc40b LW	546	EXT int uid;
378cc40b LW	547	EXT int euid;
a687059c LW	548	EXT int gid;
a687059c LW	549	EXT int egid;
378cc40b LW	550	UIDTYPE getuid();
	551	UIDTYPE geteuid();
	552	GIDTYPE getgid();
	553	GIDTYPE getegid();
	554	EXT int unsafe;
8d063cd8 LW	555
	556	#ifdef DEBUGGING
	557	EXT int debug INIT(0);
	558	EXT int dlevel INIT(0);
a687059c LW	559	EXT int dlmax INIT(128);
	560	EXT char *debname;
	561	EXT char *debdelim;
d96024cf	562	#define YYDEBUG 1
8d063cd8	563	#endif
a687059c	564	EXT int perldb INIT(0);
8d063cd8	565
378cc40b LW	566	EXT line_t cmdline INIT(NOLINE);
378cc40b LW	567
a687059c	568	EXT STR str_undef;
8d063cd8 LW	569	EXT STR str_no;
	570	EXT STR str_yes;
	571
	572	/* runtime control stuff */
	573
	574	EXT struct loop {
a687059c LW	575	char loop_label; / what the loop was called, if anything */
a687059c LW	576	int loop_sp; /* stack pointer to copy stuff down to */
8d063cd8	577	jmp_buf loop_env;
a687059c	578	} *loop_stack;
8d063cd8 LW	579
8d063cd8 LW	580	EXT int loop_ptr INIT(-1);
a687059c	581	EXT int loop_max INIT(128);
8d063cd8 LW	582
8d063cd8 LW	583	EXT jmp_buf top_env;
a559c259	584	EXT jmp_buf eval_env;
8d063cd8 LW	585
	586	EXT char goto_targ INIT(Nullch); / cmd_exec gets strange when set */
	587
a687059c LW	588	EXT ARRAY stack; / THE STACK */
a687059c LW	589
378cc40b LW	590	EXT ARRAY savestack; / to save non-local values on */
	591
	592	EXT ARRAY tosave; / strings to save on recursive subroutine */
	593
a687059c LW	594	EXT ARRAY lineary; / lines of script for debugger */
	595
	596	EXT ARRAY pidstatary; / keep pids and statuses by fd for mypopen */
	597
8d063cd8	598	double atof();
a687059c	599	long time();
8d063cd8	600	struct tm gmtime(), localtime();
378cc40b LW	601	char *mktemp();
	602	char index(), rindex();
	603	char strcpy(), strcat();
8d063cd8	604
8d063cd8	605	#ifdef EUNICE
378cc40b LW	606	#define UNLINK unlnk
378cc40b LW	607	int unlnk();
8d063cd8 LW	608	#else
	609	#define UNLINK unlink
	610	#endif
a687059c LW	611
	612	#ifndef SETREUID
	613	#ifdef SETRESUID
	614	#define setreuid(r,e) setresuid(r,e,-1)
	615	#define SETREUID
	616	#endif
	617	#endif
	618	#ifndef SETREGID
	619	#ifdef SETRESGID
	620	#define setregid(r,e) setresgid(r,e,-1)
	621	#define SETREGID
	622	#endif
	623	#endif