1 /* $Header: perl.h,v 3.0.1.9 90/10/15 17:59:41 lwall Locked $
3 * Copyright (c) 1989, Larry Wall
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.
9 * Revision 3.0.1.9 90/10/15 17:59:41 lwall
10 * patch29: some machines didn't like unsigned C preprocessor values
12 * Revision 3.0.1.8 90/08/09 04:10:53 lwall
13 * patch19: various MSDOS and OS/2 patches folded in
14 * patch19: did preliminary work toward debugging packages and evals
15 * patch19: added -x switch to extract script from input trash
17 * Revision 3.0.1.7 90/03/27 16:12:52 lwall
18 * patch16: MSDOS support
19 * patch16: support for machines that can't cast negative floats to unsigned ints
21 * Revision 3.0.1.6 90/03/12 16:40:43 lwall
22 * patch13: did some ndir straightening up for Xenix
24 * Revision 3.0.1.5 90/02/28 17:52:28 lwall
25 * patch9: Configure now determines whether volatile is supported
26 * patch9: volatilized some more variables for super-optimizing compilers
27 * patch9: unused VREG symbol deleted
28 * patch9: perl can now start up other interpreters scripts
29 * patch9: you may now undef $/ to have no input record separator
30 * patch9: nested evals clobbered their longjmp environment
32 * Revision 3.0.1.4 89/12/21 20:07:35 lwall
33 * patch7: arranged for certain registers to be restored after longjmp()
34 * patch7: Configure now compiles a test program to figure out time.h fiasco
35 * patch7: Configure now detects DG/UX thingies like [sg]etpgrp2 and utime.h
36 * patch7: memcpy() and memset() return void in __STDC__
37 * patch7: errno may now be a macro with an lvalue
38 * patch7: ANSI strerror() is now supported
39 * patch7: Xenix support for sys/ndir.h, cross compilation
41 * Revision 3.0.1.3 89/11/17 15:28:57 lwall
42 * patch5: byteorder now is a hex value
43 * patch5: Configure now looks for <time.h> including <sys/time.h>
45 * Revision 3.0.1.2 89/11/11 04:39:38 lwall
46 * patch2: Configure may now set -DDEBUGGING
47 * patch2: netinet/in.h needed sys/types.h some places
48 * patch2: more <sys/time.h> and <time.h> wrangling
49 * patch2: yydebug moved to where type doesn't matter
51 * Revision 3.0.1.1 89/10/26 23:17:08 lwall
52 * patch1: vfork now conditionally defined based on VFORK
53 * patch1: DEC risc machines have a buggy memcmp
54 * patch1: perl.h now includes <netinet/in.h> if it exists
56 * Revision 3.0 89/10/18 15:21:21 lwall
67 * This symbol is defined if you are the unfortunate owner of a buggy
68 * Microsoft C compiler and want to use intrinsic functions. Versions
69 * up to 5.1 are known conform to this definition. This is not needed
72 #define BUGGY_MSC /**/
75 * This symbol is defined if you run under an operating system that
76 * distinguishes between binary and text files. If so the function
77 * setmode will be used to set the file into binary mode. Unix
78 * doesn't distinguish.
87 * The following symbols are defined if your operating system supports
88 * functions by that name. All Unixes I know of support them, thus they
89 * are not checked by the configuration script, but are directly defined
103 * The following symbols are defined if your operating system supports
104 * password and group functions in general. All Unix systems do.
111 #if defined(HASVOLATILE) || defined(__STDC__)
112 #define VOLATILE volatile
131 # define getpgrp getpgrp2
138 # define setpgrp setpgrp2
141 #if defined(MEMCMP) && defined(mips) && BYTEORDER == 0x1234
147 #if defined(__STDC__ ) || defined(MSDOS)
148 extern void *memcpy(), *memset();
150 extern char *memcpy(), *memset();
154 #define bcopy(s1,s2,l) memcpy(s2,s1,l)
155 #define bzero(s,l) memset(s,0,l)
157 #ifndef BCMP /* prefer bcmp slightly 'cuz it doesn't order */
158 #define bcmp(s1,s2,l) memcmp(s1,s2,l)
165 #include <sys/param.h> /* if this needs types.h we're still wrong */
168 #ifndef _TYPES_ /* If types.h defines this it's easy. */
169 #ifndef major /* Does everyone's types.h define this? */
170 #include <sys/types.h>
175 #include <netinet/in.h>
178 #include <sys/stat.h>
185 # ifdef SYSTIMEKERNEL
188 # include <sys/time.h>
189 # ifdef SYSTIMEKERNEL
195 #include <sys/times.h>
198 #if defined(STRERROR) && (!defined(MKDIR) || !defined(RMDIR))
205 extern int errno; /* ANSI allows errno to be an lvalue expr */
213 extern char *sys_errlist[];
214 #define strerror(e) ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
219 #include <sys/ioctl.h>
223 #if defined(mc300) || defined(mc500) || defined(mc700) /* MASSCOMP */
241 #undef NULL /* suppress redefinition message */
247 #define NULL 0 /* silly thing is, we don't even use this */
249 #define dbm_fetch(db,dkey) fetch(dkey)
250 #define dbm_delete(db,dkey) delete(dkey)
251 #define dbm_store(db,dkey,dcontent,flags) store(dkey,dcontent)
252 #define dbm_close(db) dbmclose()
253 #define dbm_firstkey(db) firstkey()
269 #if defined(I_DIRENT) && !defined(M_XENIX)
271 # define DIRENT dirent
274 # include <sys/ndir.h>
275 # define DIRENT direct
279 # include <ndir.h> /* may be wrong in the future */
281 # include <sys/dir.h>
283 # define DIRENT direct
288 typedef unsigned int STRLEN;
290 typedef struct arg ARG;
291 typedef struct cmd CMD;
292 typedef struct formcmd FCMD;
293 typedef struct scanpat SPAT;
294 typedef struct stio STIO;
295 typedef struct sub SUBR;
296 typedef struct string STR;
297 typedef struct atbl ARRAY;
298 typedef struct htbl HASH;
299 typedef struct regexp REGEXP;
300 typedef struct stabptrs STBP;
301 typedef struct stab STAB;
302 typedef struct callsave CSV;
316 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
328 EXT char *Yes INIT("1");
329 EXT char *No INIT("");
333 /* Note: cmd.c assumes that it can use && to produce one of these values! */
339 #else /* !CRIPPLED_CC */
340 #define str_true(str) (Str = (str), \
342 ((*Str->str_ptr > '0' || \
343 Str->str_cur > 1 || \
344 (Str->str_cur && *Str->str_ptr != '0')) ? 1 : 0) \
346 (Str->str_nok ? (Str->str_u.str_nval != 0.0) : 0 ) ))
347 #endif /* CRIPPLED_CC */
350 #define str_peek(str) (Str = (str), \
354 (sprintf(tokenbuf,"num(%g)",Str->str_u.str_nval), \
363 #define str_get(str) (Str = (str), tainted |= Str->str_tainted, \
364 (Str->str_pok ? Str->str_ptr : str_2ptr(Str)))
366 #define str_get(str) (Str = (str), (Str->str_pok ? Str->str_ptr : str_2ptr(Str)))
368 #endif /* CRIPPLED_CC */
372 #else /* !CRIPPLED_CC */
374 #define str_gnum(str) (Str = (str), tainted |= Str->str_tainted, \
375 (Str->str_nok ? Str->str_u.str_nval : str_2num(Str)))
377 #define str_gnum(str) (Str = (str), (Str->str_nok ? Str->str_u.str_nval : str_2num(Str)))
379 #endif /* CRIPPLED_CC */
382 #define GROWSTR(pp,lp,len) if (*(lp) < (len)) growstr(pp,lp,len)
385 #define STR_GROW(str,len) if ((str)->str_len < (len)) str_grow(str,len)
386 #define Str_Grow str_grow
388 /* extra parentheses intentionally NOT placed around "len"! */
389 #define STR_GROW(str,len) if ((str)->str_len < (unsigned long)len) \
390 str_grow(str,(unsigned long)len)
391 #define Str_Grow(str,len) str_grow(str,(unsigned long)(len))
395 #define BYTEORDER 0x1234
398 #if defined(htonl) && !defined(HTONL)
401 #if defined(htons) && !defined(HTONS)
404 #if defined(ntohl) && !defined(NTOHL)
407 #if defined(ntohs) && !defined(NTOHS)
411 #if (BYTEORDER & 0xffff) != 0x4321
417 #define htons my_swap
418 #define htonl my_htonl
419 #define ntohs my_swap
420 #define ntohl my_ntohl
423 #if (BYTEORDER & 0xffff) == 0x4321
432 #define U_S(what) ((unsigned short)(what))
433 #define U_I(what) ((unsigned int)(what))
434 #define U_L(what) ((unsigned long)(what))
436 unsigned long castulong();
437 #define U_S(what) ((unsigned int)castulong(what))
438 #define U_I(what) ((unsigned int)castulong(what))
439 #define U_L(what) (castulong(what))
484 int eval(); /* this evaluates expressions */
485 int do_eval(); /* this evaluates eval operator */
497 char *str_append_till();
535 EXT line_t subline INIT(0);
536 EXT STR *subname INIT(Nullstr);
537 EXT int arybase INIT(0);
545 EXT struct outrec outrec;
546 EXT struct outrec toprec;
548 EXT STAB *stdinstab INIT(Nullstab);
549 EXT STAB *last_in_stab INIT(Nullstab);
550 EXT STAB *defstab INIT(Nullstab);
551 EXT STAB *argvstab INIT(Nullstab);
552 EXT STAB *envstab INIT(Nullstab);
553 EXT STAB *sigstab INIT(Nullstab);
554 EXT STAB *defoutstab INIT(Nullstab);
555 EXT STAB *curoutstab INIT(Nullstab);
556 EXT STAB *argvoutstab INIT(Nullstab);
557 EXT STAB *incstab INIT(Nullstab);
558 EXT STAB *leftstab INIT(Nullstab);
559 EXT STAB *amperstab INIT(Nullstab);
560 EXT STAB *rightstab INIT(Nullstab);
561 EXT STAB *DBstab INIT(Nullstab);
562 EXT STAB *DBline INIT(Nullstab);
563 EXT STAB *DBsub INIT(Nullstab);
565 EXT HASH *defstash; /* main symbol table */
566 EXT HASH *curstash; /* symbol table for current package */
567 EXT HASH *debstash; /* symbol table for perldb package */
569 EXT STR *curstname; /* name of current package */
571 EXT STR *freestrroot INIT(Nullstr);
572 EXT STR *lastretstr INIT(Nullstr);
573 EXT STR *DBsingle INIT(Nullstr);
574 EXT STR *DBtrace INIT(Nullstr);
575 EXT STR *DBsignal INIT(Nullstr);
580 EXT char *origfilename;
581 EXT FILE * VOLATILE rsfp;
585 EXT char *oldoldbufptr;
588 EXT STR *linestr INIT(Nullstr);
590 EXT int record_separator INIT('\n');
591 EXT int rslen INIT(1);
592 EXT char *ofs INIT(Nullch);
593 EXT int ofslen INIT(0);
594 EXT char *ors INIT(Nullch);
595 EXT int orslen INIT(0);
596 EXT char *ofmt INIT(Nullch);
597 EXT char *inplace INIT(Nullch);
598 EXT char *nointrp INIT("");
600 EXT bool preprocess INIT(FALSE);
601 EXT bool minus_n INIT(FALSE);
602 EXT bool minus_p INIT(FALSE);
603 EXT bool minus_a INIT(FALSE);
604 EXT bool doswitches INIT(FALSE);
605 EXT bool dowarn INIT(FALSE);
606 EXT bool doextract INIT(FALSE);
607 EXT bool allstabs INIT(FALSE); /* init all customary symbols in symbol table?*/
608 EXT bool sawampersand INIT(FALSE); /* must save all match strings */
609 EXT bool sawstudy INIT(FALSE); /* do fbminstr on all strings */
610 EXT bool sawi INIT(FALSE); /* study must assume case insensitive */
611 EXT bool sawvec INIT(FALSE);
612 EXT bool localizing INIT(FALSE); /* are we processing a local() list? */
615 char *cshname INIT(CSH);
620 EXT bool tainted INIT(FALSE); /* using variables controlled by $< */
624 #define TMPPATH "/tmp/perl-eXXXXXX"
626 #define TMPPATH "/tmp/plXXXXXX"
629 EXT FILE *e_fp INIT(Nullfp);
631 EXT char tokenbuf[256];
632 EXT int expectterm INIT(TRUE); /* how to interpret ambiguous tokens */
633 EXT VOLATILE int in_eval INIT(FALSE); /* trap fatal errors? */
634 EXT int multiline INIT(0); /* $*--do strings hold >1 line? */
635 EXT int forkprocess; /* so do_open |- can return proc# */
636 EXT int do_undump INIT(0); /* -u or dump seen? */
637 EXT int error_count INIT(0); /* how many errors so far, max 10 */
638 EXT int multi_start INIT(0); /* 1st line of multi-line string */
639 EXT int multi_end INIT(0); /* last line of multi-line string */
640 EXT int multi_open INIT(0); /* delimiter of said string */
641 EXT int multi_close INIT(0); /* delimiter of said string */
644 /* char *str_get(); */
649 EXT struct stat statbuf;
650 EXT struct stat statcache;
651 STAB *statstab INIT(Nullstab);
654 EXT struct tms timesbuf;
667 EXT VOLATILE int debug INIT(0);
668 EXT int dlevel INIT(0);
669 EXT int dlmax INIT(128);
674 EXT int perldb INIT(0);
676 EXT line_t cmdline INIT(NOLINE);
682 /* runtime control stuff */
685 char *loop_label; /* what the loop was called, if anything */
686 int loop_sp; /* stack pointer to copy stuff down to */
690 EXT int loop_ptr INIT(-1);
691 EXT int loop_max INIT(128);
695 EXT char * VOLATILE goto_targ INIT(Nullch); /* cmd_exec gets strange when set */
703 EXT ARRAY *stack; /* THE STACK */
705 EXT ARRAY * VOLATILE savestack; /* to save non-local values on */
707 EXT ARRAY *tosave; /* strings to save on recursive subroutine */
709 EXT ARRAY *lineary; /* lines of script for debugger */
710 EXT ARRAY *dbargs; /* args to call listed by caller function */
712 EXT ARRAY *fdpid; /* keep fd-to-pid mappings for mypopen */
713 EXT HASH *pidstatus; /* keep pid-to-status mappings for waitpid */
715 EXT int *di; /* for tmp use in debuggers */
721 EXT long basetime INIT(0);
722 struct tm *gmtime(), *localtime();
724 char *index(), *rindex();
725 char *strcpy(), *strcat();
731 #define UNLINK unlink
736 #define setreuid(r,e) setresuid(r,e,-1)
742 #define setregid(r,e) setresgid(r,e,-1)