[perl5.git] / perl.h

/* $Header: perl.h,v 3.0.1.7 90/03/27 16:12:52 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 3.0.1.7  90/03/27  16:12:52  lwall
 * patch16: MSDOS support
 * patch16: support for machines that can't cast negative floats to unsigned ints
 * 
 * Revision 3.0.1.6  90/03/12  16:40:43  lwall
 * patch13: did some ndir straightening up for Xenix
 * 
 * Revision 3.0.1.5  90/02/28  17:52:28  lwall
 * patch9: Configure now determines whether volatile is supported
 * patch9: volatilized some more variables for super-optimizing compilers
 * patch9: unused VREG symbol deleted
 * patch9: perl can now start up other interpreters scripts  
 * patch9: you may now undef $/ to have no input record separator
 * patch9: nested evals clobbered their longjmp environment
 * 
 * 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
 * 
 */

#define VOIDUSED 1
#include "config.h"

#ifdef MSDOS
/*
 * BUGGY_MSC:
 *	This symbol is defined if you are the unfortunate owner of a buggy
 *	Microsoft C compiler and want to use intrinsic functions.  Versions
 *	up to 5.1 are known conform to this definition.  This is not needed
 *	under Unix.
 */
#define BUGGY_MSC			/**/
/*
 * BINARY:
 *	This symbol is defined if you run under an operating system that
 *	distinguishes between binary and text files.  If so the function
 *	setmode will be used to set the file into binary mode.  Unix
 *	doesn't distinguish.
 */
#define BINARY				/**/

#else /* !MSDOS */

/*
 * The following symbols are defined if your operating system supports
 * functions by that name.  All Unixes I know of support them, thus they
 * are not checked by the configuration script, but are directly defined
 * here.
 */
#define CHOWN
#define CHROOT
#define FORK
#define GETLOGIN
#define GETPPID
#define KILL
#define LINK
#define PIPE
#define WAIT
#define UMASK
/*
 * The following symbols are defined if your operating system supports
 * password and group functions in general.  All Unix systems do.
 */
#define GROUP
#define PASSWD

#endif /* !MSDOS */

#if defined(HASVOLATILE) || defined(__STDC__)
#define VOLATILE volatile
#else
#define VOLATILE
#endif

#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(M_XENIX)
#   include <dirent.h>
#   define DIRENT dirent
#else
#   ifdef I_SYSNDIR
#	include <sys/ndir.h>
#	define DIRENT direct
#   else
#	ifdef I_SYSDIR
#	    ifdef hp9000s500
#		include <ndir.h>	/* may be wrong in the future */
#	    else
#		include <sys/dir.h>
#	    endif
#	    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) || defined(M_I86)
#   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

#ifdef CASTNEGFLOAT
#define U_S(what) ((unsigned short)(what))
#define U_I(what) ((unsigned int)(what))
#define U_L(what) ((unsigned long)(what))
#else
unsigned long castulong();
#define U_S(what) ((unsigned int)castulong(what))
#define U_I(what) ((unsigned int)castulong(what))
#define U_L(what) (castulong(what))
#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_pipe();
void do_vecset();
void savelist();
void saveitem();
void saveint();
void savelong();
void savesptr();
void savehptr();
void restorelist();
void repeatcpy();
HASH *savehash();
ARRAY *saveary();

EXT char **origargv;
EXT int origargc;
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 * VOLATILE rsfp;
EXT char buf[1024];
EXT char *bufptr;
EXT char *oldbufptr;
EXT char *oldoldbufptr;
EXT char *bufend;

EXT STR *linestr INIT(Nullstr);

EXT int 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);
EXT bool localizing INIT(FALSE);	/* are we processing a local() list? */

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

EXT ARRAY *stack;		/* THE STACK */

EXT ARRAY * VOLATILE 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 */

EXT int *di;			/* for tmp use in debuggers */
EXT char *dc;
EXT short *ds;

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
0f85fab0	1	/* $Header: perl.h,v 3.0.1.7 90/03/27 16:12:52 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 $
0f85fab0 LW	9	* Revision 3.0.1.7 90/03/27 16:12:52 lwall
	10	* patch16: MSDOS support
	11	* patch16: support for machines that can't cast negative floats to unsigned ints
	12	*
79a0689e LW	13	* Revision 3.0.1.6 90/03/12 16:40:43 lwall
	14	* patch13: did some ndir straightening up for Xenix
	15	*
ac58e20f LW	16	* Revision 3.0.1.5 90/02/28 17:52:28 lwall
	17	* patch9: Configure now determines whether volatile is supported
	18	* patch9: volatilized some more variables for super-optimizing compilers
	19	* patch9: unused VREG symbol deleted
	20	* patch9: perl can now start up other interpreters scripts
	21	* patch9: you may now undef $/ to have no input record separator
	22	* patch9: nested evals clobbered their longjmp environment
	23	*
663a0e37 LW	24	* Revision 3.0.1.4 89/12/21 20:07:35 lwall
	25	* patch7: arranged for certain registers to be restored after longjmp()
	26	* patch7: Configure now compiles a test program to figure out time.h fiasco
	27	* patch7: Configure now detects DG/UX thingies like [sg]etpgrp2 and utime.h
	28	* patch7: memcpy() and memset() return void in __STDC__
	29	* patch7: errno may now be a macro with an lvalue
	30	* patch7: ANSI strerror() is now supported
	31	* patch7: Xenix support for sys/ndir.h, cross compilation
	32	*
ffed7fef LW	33	* Revision 3.0.1.3 89/11/17 15:28:57 lwall
	34	* patch5: byteorder now is a hex value
	35	* patch5: Configure now looks for <time.h> including <sys/time.h>
	36	*
ae986130 LW	37	* Revision 3.0.1.2 89/11/11 04:39:38 lwall
	38	* patch2: Configure may now set -DDEBUGGING
	39	* patch2: netinet/in.h needed sys/types.h some places
	40	* patch2: more <sys/time.h> and <time.h> wrangling
	41	* patch2: yydebug moved to where type doesn't matter
	42	*
03a14243 LW	43	* Revision 3.0.1.1 89/10/26 23:17:08 lwall
	44	* patch1: vfork now conditionally defined based on VFORK
	45	* patch1: DEC risc machines have a buggy memcmp
	46	* patch1: perl.h now includes <netinet/in.h> if it exists
	47	*
a687059c LW	48	* Revision 3.0 89/10/18 15:21:21 lwall
a687059c LW	49	* 3.0 baseline
8d063cd8 LW	50	*
	51	*/
	52
ac58e20f LW	53	#define VOIDUSED 1
	54	#include "config.h"
	55
0f85fab0 LW	56	#ifdef MSDOS
	57	/*
	58	* BUGGY_MSC:
	59	* This symbol is defined if you are the unfortunate owner of a buggy
	60	* Microsoft C compiler and want to use intrinsic functions. Versions
	61	* up to 5.1 are known conform to this definition. This is not needed
	62	* under Unix.
	63	*/
	64	#define BUGGY_MSC /**/
	65	/*
	66	* BINARY:
	67	* This symbol is defined if you run under an operating system that
	68	* distinguishes between binary and text files. If so the function
	69	* setmode will be used to set the file into binary mode. Unix
	70	* doesn't distinguish.
	71	*/
	72	#define BINARY /**/
	73
	74	#else /* !MSDOS */
	75
	76	/*
	77	* The following symbols are defined if your operating system supports
	78	* functions by that name. All Unixes I know of support them, thus they
	79	* are not checked by the configuration script, but are directly defined
	80	* here.
	81	*/
	82	#define CHOWN
	83	#define CHROOT
	84	#define FORK
	85	#define GETLOGIN
	86	#define GETPPID
	87	#define KILL
	88	#define LINK
	89	#define PIPE
	90	#define WAIT
	91	#define UMASK
	92	/*
	93	* The following symbols are defined if your operating system supports
	94	* password and group functions in general. All Unix systems do.
	95	*/
	96	#define GROUP
	97	#define PASSWD
	98
	99	#endif /* !MSDOS */
	100
ac58e20f	101	#if defined(HASVOLATILE) \|\| defined(__STDC__)
663a0e37	102	#define VOLATILE volatile
663a0e37 LW	103	#else
663a0e37 LW	104	#define VOLATILE
663a0e37 LW	105	#endif
663a0e37 LW	106
a687059c LW	107	#ifdef IAMSUID
	108	# ifndef TAINT
	109	# define TAINT
	110	# endif
	111	#endif
	112
03a14243 LW	113	#ifndef VFORK
	114	# define vfork fork
	115	#endif
	116
663a0e37 LW	117	#ifdef GETPGRP2
	118	# ifndef GETPGRP
	119	# define GETPGRP
	120	# endif
	121	# define getpgrp getpgrp2
	122	#endif
	123
	124	#ifdef SETPGRP2
	125	# ifndef SETPGRP
	126	# define SETPGRP
	127	# endif
	128	# define setpgrp setpgrp2
	129	#endif
	130
ffed7fef	131	#if defined(MEMCMP) && defined(mips) && BYTEORDER == 0x1234
03a14243 LW	132	#undef MEMCMP
	133	#endif
	134
378cc40b	135	#ifdef MEMCPY
663a0e37 LW	136	#ifndef memcpy
	137	#ifdef __STDC__
	138	extern void memcpy(), memset();
	139	#else
378cc40b	140	extern char memcpy(), memset();
663a0e37 LW	141	#endif
663a0e37 LW	142	#endif
a687059c LW	143	#define bcopy(s1,s2,l) memcpy(s2,s1,l)
	144	#define bzero(s,l) memset(s,0,l)
	145	#endif
	146	#ifndef BCMP /* prefer bcmp slightly 'cuz it doesn't order */
	147	#define bcmp(s1,s2,l) memcmp(s1,s2,l)
8d063cd8 LW	148	#endif
	149
	150	#include <stdio.h>
	151	#include <ctype.h>
	152	#include <setjmp.h>
378cc40b LW	153	#include <sys/param.h> /* if this needs types.h we're still wrong */
	154
	155	#ifndef _TYPES_ /* If types.h defines this it's easy. */
	156	#ifndef major /* Does everyone's types.h define this? */
8d063cd8	157	#include <sys/types.h>
378cc40b LW	158	#endif
	159	#endif
	160
ae986130 LW	161	#ifdef I_NETINET_IN
	162	#include <netinet/in.h>
	163	#endif
	164
8d063cd8	165	#include <sys/stat.h>
135863df	166
663a0e37 LW	167	#ifdef I_TIME
663a0e37 LW	168	# include <time.h>
ffed7fef	169	#endif
663a0e37 LW	170
	171	#ifdef I_SYSTIME
	172	# ifdef SYSTIMEKERNEL
	173	# define KERNEL
	174	# endif
	175	# include <sys/time.h>
	176	# ifdef SYSTIMEKERNEL
	177	# undef KERNEL
	178	# endif
a687059c	179	#endif
135863df	180
8d063cd8 LW	181	#include <sys/times.h>
8d063cd8 LW	182
663a0e37 LW	183	#if defined(STRERROR) && (!defined(MKDIR) \|\| !defined(RMDIR))
	184	#undef STRERROR
	185	#endif
	186
	187	#include <errno.h>
	188	#ifndef errno
	189	extern int errno; /* ANSI allows errno to be an lvalue expr */
	190	#endif
	191
	192	#ifdef STRERROR
	193	char *strerror();
	194	#else
	195	extern int sys_nerr;
	196	extern char *sys_errlist[];
	197	#define strerror(e) ((e) < 0 \|\| (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
	198	#endif
	199
a687059c LW	200	#ifdef I_SYSIOCTL
	201	#ifndef _IOCTL_
	202	#include <sys/ioctl.h>
	203	#endif
	204	#endif
	205
	206	#if defined(mc300) \|\| defined(mc500) \|\| defined(mc700) /* MASSCOMP */
	207	#ifdef SOCKETPAIR
	208	#undef SOCKETPAIR
	209	#endif
	210	#ifdef NDBM
	211	#undef NDBM
	212	#endif
	213	#endif
	214
	215	#ifdef NDBM
	216	#include <ndbm.h>
	217	#define SOME_DBM
ae986130 LW	218	#ifdef ODBM
	219	#undef ODBM
	220	#endif
a687059c LW	221	#else
	222	#ifdef ODBM
	223	#ifdef NULL
	224	#undef NULL /* suppress redefinition message */
	225	#endif
	226	#include <dbm.h>
	227	#ifdef NULL
	228	#undef NULL
	229	#endif
	230	#define NULL 0 /* silly thing is, we don't even use this */
	231	#define SOME_DBM
	232	#define dbm_fetch(db,dkey) fetch(dkey)
	233	#define dbm_delete(db,dkey) delete(dkey)
	234	#define dbm_store(db,dkey,dcontent,flags) store(dkey,dcontent)
	235	#define dbm_close(db) dbmclose()
	236	#define dbm_firstkey(db) firstkey()
	237	#endif /* ODBM */
	238	#endif /* NDBM */
	239	#ifdef SOME_DBM
	240	EXT char *dbmkey;
	241	EXT int dbmlen;
	242	#endif
	243
	244	#if INTSIZE == 2
	245	#define htoni htons
	246	#define ntohi ntohs
	247	#else
	248	#define htoni htonl
	249	#define ntohi ntohl
	250	#endif
	251
79a0689e	252	#if defined(I_DIRENT) && !defined(M_XENIX)
663a0e37 LW	253	# include <dirent.h>
663a0e37 LW	254	# define DIRENT dirent
ae986130	255	#else
79a0689e LW	256	# ifdef I_SYSNDIR
79a0689e LW	257	# include <sys/ndir.h>
663a0e37 LW	258	# define DIRENT direct
663a0e37 LW	259	# else
79a0689e LW	260	# ifdef I_SYSDIR
	261	# ifdef hp9000s500
	262	# include <ndir.h> /* may be wrong in the future */
	263	# else
	264	# include <sys/dir.h>
	265	# endif
663a0e37 LW	266	# define DIRENT direct
	267	# endif
	268	# endif
a687059c LW	269	#endif
a687059c LW	270
8d063cd8 LW	271	typedef struct arg ARG;
	272	typedef struct cmd CMD;
	273	typedef struct formcmd FCMD;
	274	typedef struct scanpat SPAT;
8d063cd8	275	typedef struct stio STIO;
378cc40b	276	typedef struct sub SUBR;
8d063cd8 LW	277	typedef struct string STR;
	278	typedef struct atbl ARRAY;
	279	typedef struct htbl HASH;
378cc40b	280	typedef struct regexp REGEXP;
a687059c LW	281	typedef struct stabptrs STBP;
a687059c LW	282	typedef struct stab STAB;
8d063cd8	283
378cc40b LW	284	#include "handy.h"
378cc40b LW	285	#include "regexp.h"
8d063cd8	286	#include "str.h"
378cc40b	287	#include "util.h"
8d063cd8 LW	288	#include "form.h"
	289	#include "stab.h"
	290	#include "spat.h"
	291	#include "arg.h"
	292	#include "cmd.h"
	293	#include "array.h"
	294	#include "hash.h"
	295
0f85fab0	296	#if defined(iAPX286) \|\| defined(M_I286) \|\| defined(I80286) \|\| defined(M_I86)
a687059c LW	297	# define I286
	298	#endif
	299
	300	#ifndef __STDC__
135863df AB	301	#ifdef CHARSPRINTF
	302	char *sprintf();
	303	#else
	304	int sprintf();
	305	#endif
a687059c	306	#endif
135863df	307
8d063cd8 LW	308	EXT char *Yes INIT("1");
	309	EXT char *No INIT("");
	310
a687059c LW	311	/* "gimme" values */
	312
	313	/* Note: cmd.c assumes that it can use && to produce one of these values! */
	314	#define G_SCALAR 0
	315	#define G_ARRAY 1
	316
	317	#ifdef CRIPPLED_CC
	318	int str_true();
	319	#else /* !CRIPPLED_CC */
	320	#define str_true(str) (Str = (str), \
	321	(Str->str_pok ? \
	322	((*Str->str_ptr > '0' \|\| \
	323	Str->str_cur > 1 \|\| \
	324	(Str->str_cur && *Str->str_ptr != '0')) ? 1 : 0) \
	325	: \
	326	(Str->str_nok ? (Str->str_u.str_nval != 0.0) : 0 ) ))
	327	#endif /* CRIPPLED_CC */
8d063cd8	328
135863df	329	#ifdef DEBUGGING
a687059c LW	330	#define str_peek(str) (Str = (str), \
	331	(Str->str_pok ? \
	332	Str->str_ptr : \
	333	(Str->str_nok ? \
	334	(sprintf(tokenbuf,"num(%g)",Str->str_u.str_nval), \
	335	(char*)tokenbuf) : \
	336	"" )))
135863df AB	337	#endif
135863df AB	338
a687059c LW	339	#ifdef CRIPPLED_CC
	340	char *str_get();
	341	#else
	342	#ifdef TAINT
	343	#define str_get(str) (Str = (str), tainted \|= Str->str_tainted, \
	344	(Str->str_pok ? Str->str_ptr : str_2ptr(Str)))
	345	#else
8d063cd8	346	#define str_get(str) (Str = (str), (Str->str_pok ? Str->str_ptr : str_2ptr(Str)))
a687059c LW	347	#endif /* TAINT */
	348	#endif /* CRIPPLED_CC */
	349
	350	#ifdef CRIPPLED_CC
	351	double str_gnum();
	352	#else /* !CRIPPLED_CC */
	353	#ifdef TAINT
	354	#define str_gnum(str) (Str = (str), tainted \|= Str->str_tainted, \
	355	(Str->str_nok ? Str->str_u.str_nval : str_2num(Str)))
	356	#else /* !TAINT */
	357	#define str_gnum(str) (Str = (str), (Str->str_nok ? Str->str_u.str_nval : str_2num(Str)))
	358	#endif /* TAINT*/
	359	#endif /* CRIPPLED_CC */
8d063cd8 LW	360	EXT STR *Str;
	361
	362	#define GROWSTR(pp,lp,len) if (*(lp) < (len)) growstr(pp,lp,len)
	363
a687059c LW	364	#define STR_GROW(str,len) if ((str)->str_len < (len)) str_grow(str,len)
	365
	366	#ifndef BYTEORDER
ffed7fef	367	#define BYTEORDER 0x1234
a687059c LW	368	#endif
a687059c LW	369
ae986130 LW	370	#if defined(htonl) && !defined(HTONL)
	371	#define HTONL
	372	#endif
	373	#if defined(htons) && !defined(HTONS)
	374	#define HTONS
	375	#endif
	376	#if defined(ntohl) && !defined(NTOHL)
	377	#define NTOHL
	378	#endif
	379	#if defined(ntohs) && !defined(NTOHS)
	380	#define NTOHS
	381	#endif
a687059c	382	#ifndef HTONL
ffed7fef	383	#if (BYTEORDER != 0x4321) && (BYTEORDER != 0x87654321)
a687059c LW	384	#define HTONS
	385	#define HTONL
	386	#define NTOHS
	387	#define NTOHL
	388	#define MYSWAP
	389	#define htons my_swap
	390	#define htonl my_htonl
	391	#define ntohs my_swap
	392	#define ntohl my_ntohl
	393	#endif
	394	#else
ffed7fef	395	#if (BYTEORDER == 0x4321) \|\| (BYTEORDER == 0x87654321)
a687059c LW	396	#undef HTONS
	397	#undef HTONL
	398	#undef NTOHS
	399	#undef NTOHL
	400	#endif
	401	#endif
	402
0f85fab0 LW	403	#ifdef CASTNEGFLOAT
	404	#define U_S(what) ((unsigned short)(what))
	405	#define U_I(what) ((unsigned int)(what))
	406	#define U_L(what) ((unsigned long)(what))
	407	#else
	408	unsigned long castulong();
	409	#define U_S(what) ((unsigned int)castulong(what))
	410	#define U_I(what) ((unsigned int)castulong(what))
	411	#define U_L(what) (castulong(what))
	412	#endif
	413
8d063cd8 LW	414	CMD *add_label();
	415	CMD *block_head();
	416	CMD *append_line();
	417	CMD *make_acmd();
	418	CMD *make_ccmd();
a687059c	419	CMD *make_icmd();
8d063cd8 LW	420	CMD *invert();
	421	CMD *addcond();
	422	CMD *addloop();
	423	CMD *wopt();
378cc40b	424	CMD *over();
8d063cd8	425
8d063cd8	426	STAB *stabent();
378cc40b	427	STAB *genstab();
8d063cd8	428
378cc40b	429	ARG *stab2arg();
8d063cd8 LW	430	ARG *op_new();
8d063cd8 LW	431	ARG *make_op();
8d063cd8 LW	432	ARG *make_match();
8d063cd8 LW	433	ARG *make_split();
a687059c	434	ARG *rcatmaybe();
378cc40b	435	ARG *listish();
a687059c	436	ARG *maybelistish();
378cc40b	437	ARG *localize();
a687059c LW	438	ARG *fixeval();
a687059c LW	439	ARG *jmaybe();
378cc40b	440	ARG *l();
a687059c	441	ARG *fixl();
378cc40b LW	442	ARG *mod_match();
	443	ARG *make_list();
	444	ARG *cmd_to_arg();
	445	ARG *addflags();
	446	ARG *hide_ary();
	447	ARG *cval_to_arg();
8d063cd8	448
8d063cd8 LW	449	STR *str_new();
8d063cd8 LW	450	STR *stab_str();
a687059c LW	451
	452	int do_each();
	453	int do_subr();
	454	int do_match();
	455	int do_unpack();
	456	int eval(); /* this evaluates expressions */
	457	int do_eval(); /* this evaluates eval operator */
	458	int do_assign();
378cc40b LW	459
378cc40b LW	460	SUBR *make_sub();
8d063cd8 LW	461
	462	FCMD *load_format();
	463
	464	char *scanpat();
	465	char *scansubst();
	466	char *scantrans();
	467	char *scanstr();
	468	char *scanreg();
8d063cd8 LW	469	char *str_append_till();
8d063cd8 LW	470	char *str_gets();
a687059c	471	char *str_grow();
8d063cd8	472
8d063cd8 LW	473	bool do_open();
	474	bool do_close();
	475	bool do_print();
378cc40b LW	476	bool do_aprint();
	477	bool do_exec();
	478	bool do_aexec();
8d063cd8 LW	479
8d063cd8 LW	480	int do_subst();
378cc40b LW	481	int cando();
378cc40b LW	482	int ingroup();
8d063cd8	483
378cc40b LW	484	void str_replace();
	485	void str_inc();
	486	void str_dec();
8d063cd8	487	void str_free();
a687059c	488	void stab_clear();
378cc40b	489	void do_join();
378cc40b	490	void do_sprintf();
a687059c	491	void do_accept();
ac58e20f	492	void do_pipe();
a687059c LW	493	void do_vecset();
	494	void savelist();
	495	void saveitem();
	496	void saveint();
	497	void savelong();
	498	void savesptr();
	499	void savehptr();
	500	void restorelist();
ac58e20f	501	void repeatcpy();
a687059c LW	502	HASH *savehash();
a687059c LW	503	ARRAY *saveary();
378cc40b	504
ac58e20f LW	505	EXT char **origargv;
ac58e20f LW	506	EXT int origargc;
378cc40b	507	EXT line_t line INIT(0);
a687059c LW	508	EXT line_t subline INIT(0);
a687059c LW	509	EXT STR *subname INIT(Nullstr);
8d063cd8 LW	510	EXT int arybase INIT(0);
	511
	512	struct outrec {
378cc40b LW	513	line_t o_lines;
	514	char *o_str;
	515	int o_len;
8d063cd8 LW	516	};
	517
	518	EXT struct outrec outrec;
	519	EXT struct outrec toprec;
	520
a687059c	521	EXT STAB *stdinstab INIT(Nullstab);
8d063cd8 LW	522	EXT STAB *last_in_stab INIT(Nullstab);
	523	EXT STAB *defstab INIT(Nullstab);
	524	EXT STAB *argvstab INIT(Nullstab);
	525	EXT STAB *envstab INIT(Nullstab);
	526	EXT STAB *sigstab INIT(Nullstab);
	527	EXT STAB *defoutstab INIT(Nullstab);
	528	EXT STAB *curoutstab INIT(Nullstab);
	529	EXT STAB *argvoutstab INIT(Nullstab);
378cc40b	530	EXT STAB *incstab INIT(Nullstab);
a687059c LW	531	EXT STAB *leftstab INIT(Nullstab);
	532	EXT STAB *amperstab INIT(Nullstab);
	533	EXT STAB *rightstab INIT(Nullstab);
	534	EXT STAB *DBstab INIT(Nullstab);
	535	EXT STAB *DBsub INIT(Nullstab);
	536
	537	EXT HASH defstash; / main symbol table */
	538	EXT HASH curstash; / symbol table for current package */
	539	EXT HASH debstash; / symbol table for perldb package */
	540
	541	EXT STR curstname; / name of current package */
8d063cd8 LW	542
8d063cd8 LW	543	EXT STR *freestrroot INIT(Nullstr);
378cc40b	544	EXT STR *lastretstr INIT(Nullstr);
a687059c LW	545	EXT STR *DBsingle INIT(Nullstr);
	546
	547	EXT int lastspbase;
	548	EXT int lastsize;
8d063cd8	549
378cc40b LW	550	EXT char *filename;
378cc40b LW	551	EXT char *origfilename;
ac58e20f	552	EXT FILE * VOLATILE rsfp;
8d063cd8	553	EXT char buf[1024];
a687059c LW	554	EXT char *bufptr;
	555	EXT char *oldbufptr;
	556	EXT char *oldoldbufptr;
	557	EXT char *bufend;
8d063cd8 LW	558
	559	EXT STR *linestr INIT(Nullstr);
	560
ac58e20f	561	EXT int record_separator INIT('\n');
a687059c	562	EXT int rslen INIT(1);
8d063cd8	563	EXT char *ofs INIT(Nullch);
a687059c	564	EXT int ofslen INIT(0);
8d063cd8	565	EXT char *ors INIT(Nullch);
a687059c	566	EXT int orslen INIT(0);
8d063cd8 LW	567	EXT char *ofmt INIT(Nullch);
8d063cd8 LW	568	EXT char *inplace INIT(Nullch);
a687059c	569	EXT char *nointrp INIT("");
8d063cd8	570
378cc40b LW	571	EXT bool preprocess INIT(FALSE);
	572	EXT bool minus_n INIT(FALSE);
	573	EXT bool minus_p INIT(FALSE);
	574	EXT bool minus_a INIT(FALSE);
	575	EXT bool doswitches INIT(FALSE);
	576	EXT bool dowarn INIT(FALSE);
	577	EXT bool allstabs INIT(FALSE); /* init all customary symbols in symbol table?*/
	578	EXT bool sawampersand INIT(FALSE); /* must save all match strings */
	579	EXT bool sawstudy INIT(FALSE); /* do fbminstr on all strings */
a687059c LW	580	EXT bool sawi INIT(FALSE); /* study must assume case insensitive */
a687059c LW	581	EXT bool sawvec INIT(FALSE);
ac58e20f	582	EXT bool localizing INIT(FALSE); /* are we processing a local() list? */
a687059c	583
ae986130 LW	584	#ifdef CSH
	585	char *cshname INIT(CSH);
	586	int cshlen INIT(0);
	587	#endif /* CSH */
a687059c LW	588
	589	#ifdef TAINT
	590	EXT bool tainted INIT(FALSE); /* using variables controlled by $< */
	591	#endif
378cc40b LW	592
	593	#define TMPPATH "/tmp/perl-eXXXXXX"
	594	EXT char *e_tmpname;
	595	EXT FILE *e_fp INIT(Nullfp);
	596
8d063cd8	597	EXT char tokenbuf[256];
a687059c	598	EXT int expectterm INIT(TRUE); /* how to interpret ambiguous tokens */
ac58e20f	599	EXT VOLATILE int in_eval INIT(FALSE); /* trap fatal errors? */
a687059c LW	600	EXT int multiline INIT(0); /* $--do strings hold >1 line? /
	601	EXT int forkprocess; /* so do_open \|- can return proc# */
	602	EXT int do_undump INIT(0); /* -u or dump seen? */
	603	EXT int error_count INIT(0); /* how many errors so far, max 10 */
	604	EXT int multi_start INIT(0); /* 1st line of multi-line string */
	605	EXT int multi_end INIT(0); /* last line of multi-line string */
	606	EXT int multi_open INIT(0); /* delimiter of said string */
	607	EXT int multi_close INIT(0); /* delimiter of said string */
8d063cd8 LW	608
	609	FILE *popen();
	610	/* char str_get(); /
	611	STR *interp();
	612	void free_arg();
	613	STIO *stio_new();
	614
	615	EXT struct stat statbuf;
a687059c LW	616	EXT struct stat statcache;
	617	STAB *statstab INIT(Nullstab);
	618	STR *statname;
8d063cd8	619	EXT struct tms timesbuf;
378cc40b LW	620	EXT int uid;
378cc40b LW	621	EXT int euid;
a687059c LW	622	EXT int gid;
a687059c LW	623	EXT int egid;
378cc40b LW	624	UIDTYPE getuid();
	625	UIDTYPE geteuid();
	626	GIDTYPE getgid();
	627	GIDTYPE getegid();
	628	EXT int unsafe;
8d063cd8 LW	629
8d063cd8 LW	630	#ifdef DEBUGGING
ac58e20f	631	EXT VOLATILE int debug INIT(0);
8d063cd8	632	EXT int dlevel INIT(0);
a687059c LW	633	EXT int dlmax INIT(128);
	634	EXT char *debname;
	635	EXT char *debdelim;
d96024cf	636	#define YYDEBUG 1
8d063cd8	637	#endif
a687059c	638	EXT int perldb INIT(0);
8d063cd8	639
378cc40b LW	640	EXT line_t cmdline INIT(NOLINE);
378cc40b LW	641
a687059c	642	EXT STR str_undef;
8d063cd8 LW	643	EXT STR str_no;
	644	EXT STR str_yes;
	645
	646	/* runtime control stuff */
	647
	648	EXT struct loop {
a687059c LW	649	char loop_label; / what the loop was called, if anything */
a687059c LW	650	int loop_sp; /* stack pointer to copy stuff down to */
8d063cd8	651	jmp_buf loop_env;
a687059c	652	} *loop_stack;
8d063cd8 LW	653
8d063cd8 LW	654	EXT int loop_ptr INIT(-1);
a687059c	655	EXT int loop_max INIT(128);
8d063cd8 LW	656
	657	EXT jmp_buf top_env;
	658
ac58e20f	659	EXT char * VOLATILE goto_targ INIT(Nullch); /* cmd_exec gets strange when set */
8d063cd8	660
a687059c LW	661	EXT ARRAY stack; / THE STACK */
a687059c LW	662
ac58e20f	663	EXT ARRAY * VOLATILE savestack; /* to save non-local values on */
378cc40b LW	664
	665	EXT ARRAY tosave; / strings to save on recursive subroutine */
	666
a687059c LW	667	EXT ARRAY lineary; / lines of script for debugger */
	668
	669	EXT ARRAY pidstatary; / keep pids and statuses by fd for mypopen */
	670
ac58e20f LW	671	EXT int di; / for tmp use in debuggers */
	672	EXT char *dc;
	673	EXT short *ds;
	674
8d063cd8	675	double atof();
a687059c	676	long time();
8d063cd8	677	struct tm gmtime(), localtime();
378cc40b LW	678	char *mktemp();
	679	char index(), rindex();
	680	char strcpy(), strcat();
8d063cd8	681
8d063cd8	682	#ifdef EUNICE
378cc40b LW	683	#define UNLINK unlnk
378cc40b LW	684	int unlnk();
8d063cd8 LW	685	#else
	686	#define UNLINK unlink
	687	#endif
a687059c LW	688
	689	#ifndef SETREUID
	690	#ifdef SETRESUID
	691	#define setreuid(r,e) setresuid(r,e,-1)
	692	#define SETREUID
	693	#endif
	694	#endif
	695	#ifndef SETREGID
	696	#ifdef SETRESGID
	697	#define setregid(r,e) setresgid(r,e,-1)
	698	#define SETREGID
	699	#endif
	700	#endif