3 * Copyright (c) 1987-1994, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
12 #define STRANGE_MALLOC
20 # define BYTEORDER 0x1234
23 /* Overall memory policy? */
29 * The following contortions are brought to you on behalf of all the
30 * standards, semi-standards, de facto standards, not-so-de-facto standards
31 * of the world, as well as all the other botches anyone ever thought of.
32 * The basic theory is that if we work hard enough here, the rest of the
33 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
36 /* define this once if either system, instead of cluttering up the src */
37 #if defined(MSDOS) || defined(atarist)
41 #if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
45 #if defined(HASVOLATILE) || defined(STANDARD_C)
47 # define VOL // to temporarily suppress warnings
55 #define TAINT_IF(c) (tainted |= (c))
56 #define TAINT_NOT (tainted = 0)
57 #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
58 #define TAINT_ENV() if (tainting) taint_env()
74 #include <appkit/NXCType.h>
83 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
90 # ifdef PARAM_NEEDS_TYPES
91 # include <sys/types.h>
93 # include <sys/param.h>
97 /* Use all the "standard" definitions? */
98 #if defined(STANDARD_C) && defined(I_STDLIB)
100 #endif /* STANDARD_C */
102 /* Maybe this comes after <stdlib.h> so we don't try to change
103 the standard library prototypes?. We'll use our own in
104 proto.h instead. I guess. The patch had no explanation.
108 # define malloc Mymalloc
109 # define realloc Myremalloc
112 # define safemalloc malloc
113 # define saferealloc realloc
114 # define safefree free
117 #define MEM_SIZE Size_t
119 #if defined(I_STRING) || defined(__cplusplus)
122 # include <strings.h>
125 #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
127 #define strrchr rindex
130 #if defined(mips) && defined(ultrix) && !defined(__STDC__)
139 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
141 extern char * memcpy _((char*, char*, int));
147 # define memcpy(d,s,l) bcopy(s,d,l)
149 # define memcpy(d,s,l) my_bcopy(s,d,l)
152 #endif /* HAS_MEMCPY */
155 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
157 extern char *memset _((char*, int, int));
160 # define memzero(d,l) memset(d,0,l)
164 # define memzero(d,l) bzero(d,l)
166 # define memzero(d,l) my_bzero(d,l)
169 #endif /* HAS_MEMSET */
172 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
174 extern int memcmp _((char*, char*, int));
179 # define memcmp my_memcmp
181 #endif /* HAS_MEMCMP */
183 /* we prefer bcmp slightly for comparisons that don't care about ordering */
186 # define bcmp(s1,s2,l) memcmp(s1,s2,l)
188 #endif /* HAS_BCMP */
190 #if !defined(HAS_MEMMOVE) && !defined(memmove)
191 # if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
192 # define memmove(d,s,l) bcopy(s,d,l)
194 # if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
195 # define memmove(d,s,l) memcpy(d,s,l)
197 # define memmove(d,s,l) my_bcopy(s,d,l)
202 #ifndef _TYPES_ /* If types.h defines this it's easy. */
203 # ifndef major /* Does everyone's types.h define this? */
204 # include <sys/types.h>
209 # include <netinet/in.h>
213 #include <sys/stat.h>
216 /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
217 like UTekV) are broken, sometimes giving false positives. Undefine
218 them here and let the code below set them to proper values.
220 The ghs macro stands for GreenHills Software C-1.8.5 which
221 is the C compiler for sysV88 and the various derivatives.
222 This header file bug is corrected in gcc-2.5.8 and later versions.
223 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
225 #if defined(uts) || (defined(m88k) && defined(ghs))
239 # ifdef I_SYS_TIME_KERNEL
242 # include <sys/time.h>
243 # ifdef I_SYS_TIME_KERNEL
249 # if defined(HAS_TIMES) && defined(I_SYS_TIMES)
250 # include <sys/times.h>
254 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
260 # define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
262 #endif /* !HAS_MKFIFO */
267 # include <net/errno.h>
271 # define FIXSTATUS(sts) (U_L((sts) & 0xffff))
272 # define SHIFTSTATUS(sts) ((sts) >> 8)
273 # define SETERRNO(errcode,vmserrcode) errno = (errcode)
275 # define FIXSTATUS(sts) (U_L(sts))
276 # define SHIFTSTATUS(sts) (sts)
277 # define SETERRNO(errcode,vmserrcode) {set_errno(errcode); set_vaxc_errno(vmserrcode);}
282 extern int errno; /* ANSI allows errno to be an lvalue expr */
288 char *strerror _((int,...));
290 char *strerror _((int));
293 # define Strerror strerror
296 # ifdef HAS_SYS_ERRLIST
298 extern char *sys_errlist[];
300 # define Strerror(e) \
301 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
308 # include <sys/ioctl.h>
312 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
313 # ifdef HAS_SOCKETPAIR
314 # undef HAS_SOCKETPAIR
329 /* Configure already sets Direntry_t */
330 #if defined(I_DIRENT)
332 # if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
333 # include <sys/dir.h>
337 # include <sys/ndir.h>
341 # include <ndir.h> /* may be wrong in the future */
343 # include <sys/dir.h>
350 /* work around botch in SunOS 4.0.1 and 4.0.2 */
352 # define fputs(sv,fp) fprintf(fp,"%s",sv)
357 * The following gobbledygook brought to you on behalf of __STDC__.
358 * (I could just use #ifndef __STDC__, but this is more bulletproof
359 * in the face of half-implementations.)
364 # define S_IFMT _S_IFMT
366 # define S_IFMT 0170000
371 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
375 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
380 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
382 # define S_ISBLK(m) (0)
387 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
392 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
394 # define S_ISFIFO(m) (0)
400 # define S_ISLNK(m) _S_ISLNK(m)
403 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
406 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
408 # define S_ISLNK(m) (0)
416 # define S_ISSOCK(m) _S_ISSOCK(m)
419 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
422 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
424 # define S_ISSOCK(m) (0)
432 # define S_IRUSR S_IREAD
433 # define S_IWUSR S_IWRITE
434 # define S_IXUSR S_IEXEC
436 # define S_IRUSR 0400
437 # define S_IWUSR 0200
438 # define S_IXUSR 0100
440 # define S_IRGRP (S_IRUSR>>3)
441 # define S_IWGRP (S_IWUSR>>3)
442 # define S_IXGRP (S_IXUSR>>3)
443 # define S_IROTH (S_IRUSR>>6)
444 # define S_IWOTH (S_IWUSR>>6)
445 # define S_IXOTH (S_IXUSR>>6)
449 # define S_ISUID 04000
453 # define S_ISGID 02000
460 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
461 # define SLOPPYDIVIDE
464 #if defined(cray) || defined(convex) || defined (uts) || BYTEORDER > 0xffff
476 # if defined(convex) || defined (uts)
477 # define Quad_t long long
483 typedef unsigned Quad_t UV;
486 typedef unsigned long UV;
489 typedef MEM_SIZE STRLEN;
491 typedef struct op OP;
492 typedef struct cop COP;
493 typedef struct unop UNOP;
494 typedef struct binop BINOP;
495 typedef struct listop LISTOP;
496 typedef struct logop LOGOP;
497 typedef struct condop CONDOP;
498 typedef struct pmop PMOP;
499 typedef struct svop SVOP;
500 typedef struct gvop GVOP;
501 typedef struct pvop PVOP;
502 typedef struct cvop CVOP;
503 typedef struct loop LOOP;
505 typedef struct Outrec Outrec;
506 typedef struct interpreter PerlInterpreter;
507 typedef struct ff FF;
508 typedef struct sv SV;
509 typedef struct av AV;
510 typedef struct hv HV;
511 typedef struct cv CV;
512 typedef struct regexp REGEXP;
513 typedef struct gp GP;
514 typedef struct sv GV;
515 typedef struct io IO;
516 typedef struct context CONTEXT;
517 typedef struct block BLOCK;
519 typedef struct magic MAGIC;
520 typedef struct xrv XRV;
521 typedef struct xpv XPV;
522 typedef struct xpviv XPVIV;
523 typedef struct xpvnv XPVNV;
524 typedef struct xpvmg XPVMG;
525 typedef struct xpvlv XPVLV;
526 typedef struct xpvav XPVAV;
527 typedef struct xpvhv XPVHV;
528 typedef struct xpvgv XPVGV;
529 typedef struct xpvcv XPVCV;
530 typedef struct xpvbm XPVBM;
531 typedef struct xpvfm XPVFM;
532 typedef struct xpvio XPVIO;
533 typedef struct mgvtbl MGVTBL;
534 typedef union any ANY;
538 typedef I32 (*filter_t) _((int, SV *, int));
539 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
540 #define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
541 #define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
553 # include "unixish.h"
558 #define pause() sleep((32767<<16)+32767)
563 /* on BSDish systes we're safe */
564 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
566 /* otherwise guess at what's safe */
567 # define IOCPARM_LEN(x) 256
576 void (*any_dptr) _((void*));
593 /* work around some libPW problems */
598 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
602 #if defined(htonl) && !defined(HAS_HTONL)
605 #if defined(htons) && !defined(HAS_HTONS)
608 #if defined(ntohl) && !defined(HAS_NTOHL)
611 #if defined(ntohs) && !defined(HAS_NTOHS)
615 #if (BYTEORDER & 0xffff) != 0x4321
621 #define htons my_swap
622 #define htonl my_htonl
623 #define ntohs my_swap
624 #define ntohl my_ntohl
627 #if (BYTEORDER & 0xffff) == 0x4321
636 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
639 #if BYTEORDER != 0x1234
644 # if BYTEORDER == 0x4321
645 # define vtohl(x) ((((x)&0xFF)<<24) \
647 +(((x)&0x0000FF00)<<8) \
648 +(((x)&0x00FF0000)>>8) )
649 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
650 # define htovl(x) vtohl(x)
651 # define htovs(x) vtohs(x)
653 /* otherwise default to functions in util.c */
657 #define U_S(what) ((U16)(what))
658 #define U_I(what) ((unsigned int)(what))
659 #define U_L(what) ((U32)(what))
661 U32 cast_ulong _((double));
662 #define U_S(what) ((U16)cast_ulong((double)(what)))
663 #define U_I(what) ((unsigned int)cast_ulong((double)(what)))
664 #define U_L(what) (cast_ulong((double)(what)))
668 #define I_32(what) ((I32)(what))
669 #define I_V(what) ((IV)(what))
670 #define U_V(what) ((UV)(what))
672 I32 cast_i32 _((double));
673 #define I_32(what) (cast_i32((double)(what)))
674 IV cast_iv _((double));
675 #define I_V(what) (cast_iv((double)(what)))
676 UV cast_uv _((double));
677 #define U_V(what) (cast_uv((double)(what)))
691 #define TMPPATH "plXXXXXX"
694 #define TMPPATH "sys$scratch:perl-eXXXXXX"
696 #define TMPPATH "/tmp/perl-eXXXXXX"
701 Uid_t getuid _((void));
702 Uid_t geteuid _((void));
703 Gid_t getgid _((void));
704 Gid_t getegid _((void));
710 #define DEBUG(a) if (debug) a
711 #define DEBUG_p(a) if (debug & 1) a
712 #define DEBUG_s(a) if (debug & 2) a
713 #define DEBUG_l(a) if (debug & 4) a
714 #define DEBUG_t(a) if (debug & 8) a
715 #define DEBUG_o(a) if (debug & 16) a
716 #define DEBUG_c(a) if (debug & 32) a
717 #define DEBUG_P(a) if (debug & 64) a
718 #define DEBUG_m(a) if (debug & 128) a
719 #define DEBUG_f(a) if (debug & 256) a
720 #define DEBUG_r(a) if (debug & 512) a
721 #define DEBUG_x(a) if (debug & 1024) a
722 #define DEBUG_u(a) if (debug & 2048) a
723 #define DEBUG_L(a) if (debug & 4096) a
724 #define DEBUG_H(a) if (debug & 8192) a
725 #define DEBUG_X(a) if (debug & 16384) a
726 #define DEBUG_D(a) if (debug & 32768) a
747 #define YYMAXDEPTH 300
749 #define assert(what) DEB( { \
751 croak("Assertion failed: file \"%s\", line %d", \
752 __FILE__, __LINE__); \
757 I32 (*uf_val)_((IV, SV*));
758 I32 (*uf_set)_((IV, SV*));
762 /* Fix these up for __STDC__ */
764 char *mktemp _((char*));
765 double atof _((const char*));
769 /* All of these are in stdlib.h or time.h for ANSI C */
771 struct tm *gmtime(), *localtime();
772 char *strchr(), *strrchr();
773 char *strcpy(), *strcat();
774 #endif /* ! STANDARD_C */
783 double exp _((double));
784 double log _((double));
785 double sqrt _((double));
786 double modf _((double,double*));
787 double sin _((double));
788 double cos _((double));
789 double atan2 _((double,double));
790 double pow _((double,double));
797 char *crypt _((const char*, const char*));
798 char *getenv _((const char*));
799 Off_t lseek _((int,Off_t,int));
800 char *getlogin _((void));
803 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
805 I32 unlnk _((char*));
807 #define UNLINK unlink
811 # ifdef HAS_SETRESUID
812 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
813 # define HAS_SETREUID
817 # ifdef HAS_SETRESGID
818 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
819 # define HAS_SETREGID
831 # define PAD_SV(po) pad_sv(po)
833 # define PAD_SV(po) curpad[po]
841 EXT PerlInterpreter * curinterp; /* currently running interpreter */
842 #ifndef VMS /* VMS doesn't use environ array */
843 extern char ** environ; /* environment variables supplied via exec */
845 EXT int uid; /* current real user id */
846 EXT int euid; /* current effective user id */
847 EXT int gid; /* current real group id */
848 EXT int egid; /* current effective group id */
849 EXT bool nomemok; /* let malloc context handle nomem */
850 EXT U32 an; /* malloc sequence number */
851 EXT U32 cop_seqmax; /* statement sequence number */
852 EXT U32 op_seqmax; /* op sequence number */
853 EXT U32 evalseq; /* eval sequence number */
854 EXT U32 sub_generation; /* inc to force methods to be looked up again */
855 EXT char ** origenviron;
857 EXT U32 * profiledata;
858 EXT int maxo INIT(MAXO);/* Number of ops */
860 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
861 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
862 EXT double * xnv_root; /* free xnv list--shared by interpreters */
863 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
864 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
865 EXT HE * he_root; /* free he list--shared by interpreters */
867 /* Stack for currently executing thread--context switch must handle this. */
868 EXT SV ** stack_base; /* stack->array_ary */
869 EXT SV ** stack_sp; /* stack pointer now */
870 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
872 /* likewise for these */
874 EXT OP * op; /* current op--oughta be in a global register */
876 EXT I32 * scopestack; /* blocks we've entered */
877 EXT I32 scopestack_ix;
878 EXT I32 scopestack_max;
880 EXT ANY* savestack; /* to save non-local values on */
881 EXT I32 savestack_ix;
882 EXT I32 savestack_max;
884 EXT OP ** retstack; /* returns we've pushed */
886 EXT I32 retstack_max;
888 EXT I32 * markstack; /* stackmarks we're remembering */
889 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
890 EXT I32 * markstack_max; /* stackmarks we're remembering */
898 EXT char tokenbuf[256];
899 EXT struct stat statbuf;
901 EXT struct tms timesbuf;
903 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
905 /* for tmp use in stupid debuggers */
910 /* handy constants */
911 EXT char * Yes INIT("1");
912 EXT char * No INIT("");
913 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
914 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
915 EXT char * vert INIT("|");
917 EXT char warn_uninit[]
918 INIT("Use of uninitialized value");
919 EXT char warn_nosemi[]
920 INIT("Semicolon seems to be missing");
921 EXT char warn_reserved[]
922 INIT("Unquoted string \"%s\" may clash with future reserved word");
924 INIT("Unsuccessful %s on filename containing newline");
925 EXT char no_wrongref[]
926 INIT("Can't use %s ref as %s ref");
928 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
930 INIT("Can't use an undefined value as %s reference");
932 INIT("Modification of non-creatable array value attempted, subscript %d");
934 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
936 INIT("Modification of a read-only value attempted");
938 INIT("Out of memory!\n");
939 EXT char no_security[]
940 INIT("Insecure dependency in %s%s");
941 EXT char no_sock_func[]
942 INIT("Unsupported socket function \"%s\" called");
943 EXT char no_dir_func[]
944 INIT("Unsupported directory function \"%s\" called");
946 INIT("The %s function is unimplemented");
948 INIT("\"my\" variable %s can't be in a package");
954 EXT char * cshname INIT(CSH);
959 EXT char *sig_name[] = { SIG_NAME };
960 EXT int sig_num[] = { SIG_NUM };
962 EXT char *sig_name[];
967 EXT unsigned char fold[] = { /* fast case folding table */
968 0, 1, 2, 3, 4, 5, 6, 7,
969 8, 9, 10, 11, 12, 13, 14, 15,
970 16, 17, 18, 19, 20, 21, 22, 23,
971 24, 25, 26, 27, 28, 29, 30, 31,
972 32, 33, 34, 35, 36, 37, 38, 39,
973 40, 41, 42, 43, 44, 45, 46, 47,
974 48, 49, 50, 51, 52, 53, 54, 55,
975 56, 57, 58, 59, 60, 61, 62, 63,
976 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
977 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
978 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
979 'x', 'y', 'z', 91, 92, 93, 94, 95,
980 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
981 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
982 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
983 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
984 128, 129, 130, 131, 132, 133, 134, 135,
985 136, 137, 138, 139, 140, 141, 142, 143,
986 144, 145, 146, 147, 148, 149, 150, 151,
987 152, 153, 154, 155, 156, 157, 158, 159,
988 160, 161, 162, 163, 164, 165, 166, 167,
989 168, 169, 170, 171, 172, 173, 174, 175,
990 176, 177, 178, 179, 180, 181, 182, 183,
991 184, 185, 186, 187, 188, 189, 190, 191,
992 192, 193, 194, 195, 196, 197, 198, 199,
993 200, 201, 202, 203, 204, 205, 206, 207,
994 208, 209, 210, 211, 212, 213, 214, 215,
995 216, 217, 218, 219, 220, 221, 222, 223,
996 224, 225, 226, 227, 228, 229, 230, 231,
997 232, 233, 234, 235, 236, 237, 238, 239,
998 240, 241, 242, 243, 244, 245, 246, 247,
999 248, 249, 250, 251, 252, 253, 254, 255
1002 EXT unsigned char fold[];
1006 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
1007 1, 2, 84, 151, 154, 155, 156, 157,
1008 165, 246, 250, 3, 158, 7, 18, 29,
1009 40, 51, 62, 73, 85, 96, 107, 118,
1010 129, 140, 147, 148, 149, 150, 152, 153,
1011 255, 182, 224, 205, 174, 176, 180, 217,
1012 233, 232, 236, 187, 235, 228, 234, 226,
1013 222, 219, 211, 195, 188, 193, 185, 184,
1014 191, 183, 201, 229, 181, 220, 194, 162,
1015 163, 208, 186, 202, 200, 218, 198, 179,
1016 178, 214, 166, 170, 207, 199, 209, 206,
1017 204, 160, 212, 216, 215, 192, 175, 173,
1018 243, 172, 161, 190, 203, 189, 164, 230,
1019 167, 248, 227, 244, 242, 255, 241, 231,
1020 240, 253, 169, 210, 245, 237, 249, 247,
1021 239, 168, 252, 251, 254, 238, 223, 221,
1022 213, 225, 177, 197, 171, 196, 159, 4,
1023 5, 6, 8, 9, 10, 11, 12, 13,
1024 14, 15, 16, 17, 19, 20, 21, 22,
1025 23, 24, 25, 26, 27, 28, 30, 31,
1026 32, 33, 34, 35, 36, 37, 38, 39,
1027 41, 42, 43, 44, 45, 46, 47, 48,
1028 49, 50, 52, 53, 54, 55, 56, 57,
1029 58, 59, 60, 61, 63, 64, 65, 66,
1030 67, 68, 69, 70, 71, 72, 74, 75,
1031 76, 77, 78, 79, 80, 81, 82, 83,
1032 86, 87, 88, 89, 90, 91, 92, 93,
1033 94, 95, 97, 98, 99, 100, 101, 102,
1034 103, 104, 105, 106, 108, 109, 110, 111,
1035 112, 113, 114, 115, 116, 117, 119, 120,
1036 121, 122, 123, 124, 125, 126, 127, 128,
1037 130, 131, 132, 133, 134, 135, 136, 137,
1038 138, 139, 141, 142, 143, 144, 145, 146
1041 EXT unsigned char freq[];
1046 EXT char* block_type[] = {
1055 EXT char* block_type[];
1059 /*****************************************************************************/
1060 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1061 /*****************************************************************************/
1062 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1075 EXT U32 lex_state; /* next token is determined */
1076 EXT U32 lex_defer; /* state after determined token */
1077 EXT expectation lex_expect; /* expect after determined token */
1078 EXT I32 lex_brackets; /* bracket count */
1079 EXT I32 lex_formbrack; /* bracket count at outer format level */
1080 EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1081 EXT I32 lex_casemods; /* casemod count */
1082 EXT I32 lex_dojoin; /* doing an array interpolation */
1083 EXT I32 lex_starts; /* how many interps done on level */
1084 EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1085 EXT SV * lex_repl; /* runtime replacement from s/// */
1086 EXT OP * lex_op; /* extra info to pass back on op */
1087 EXT OP * lex_inpat; /* in pattern $) and $| are special */
1088 EXT I32 lex_inwhat; /* what kind of quoting are we in */
1089 EXT char * lex_brackstack; /* what kind of brackets to pop */
1090 EXT char * lex_casestack; /* what kind of case mods in effect */
1092 /* What we know when we're in LEX_KNOWNEXT state. */
1093 EXT YYSTYPE nextval[5]; /* value of next token, if any */
1094 EXT I32 nexttype[5]; /* type of next token */
1097 EXT FILE * VOL rsfp INIT(Nullfp);
1100 EXT char * oldbufptr;
1101 EXT char * oldoldbufptr;
1103 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1104 EXT AV * rsfp_filters;
1106 EXT I32 multi_start; /* 1st line of multi-line string */
1107 EXT I32 multi_end; /* last line of multi-line string */
1108 EXT I32 multi_open; /* delimiter of said string */
1109 EXT I32 multi_close; /* delimiter of said string */
1112 EXT I32 error_count; /* how many errors so far, max 10 */
1113 EXT I32 subline; /* line this subroutine began on */
1114 EXT SV * subname; /* name of current subroutine */
1116 EXT CV * compcv; /* currently compiling subroutine */
1117 EXT AV * comppad; /* storage for lexically scoped temporaries */
1118 EXT AV * comppad_name; /* variable names for "my" variables */
1119 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1120 EXT I32 min_intro_pending;/* start of vars to introduce */
1121 EXT I32 max_intro_pending;/* end of vars to introduce */
1122 EXT I32 padix; /* max used index in current "register" pad */
1123 EXT I32 padix_floor; /* how low may inner block reset padix */
1124 EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
1127 EXT I32 thisexpr; /* name id for nothing_in_common() */
1128 EXT char * last_uni; /* position of last named-unary operator */
1129 EXT char * last_lop; /* position of last list operator */
1130 EXT OPCODE last_lop_op; /* last list operator */
1131 EXT bool in_my; /* we're compiling a "my" declaration */
1133 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1136 EXT U32 hints; /* various compilation flags */
1138 /* Note: the lowest 8 bits are reserved for
1139 stuffing into op->op_private */
1140 #define HINT_INTEGER 0x00000001
1141 #define HINT_STRICT_REFS 0x00000002
1143 #define HINT_BLOCK_SCOPE 0x00000100
1144 #define HINT_STRICT_SUBS 0x00000200
1145 #define HINT_STRICT_VARS 0x00000400
1147 /**************************************************************************/
1148 /* This regexp stuff is global since it always happens within 1 expr eval */
1149 /**************************************************************************/
1151 EXT char * regprecomp; /* uncompiled string. */
1152 EXT char * regparse; /* Input-scan pointer. */
1153 EXT char * regxend; /* End of input for compile */
1154 EXT I32 regnpar; /* () count. */
1155 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1156 EXT I32 regsize; /* Code size. */
1157 EXT I32 regnaughty; /* How bad is this pattern? */
1158 EXT I32 regsawback; /* Did we see \1, ...? */
1160 EXT char * reginput; /* String-input pointer. */
1161 EXT char * regbol; /* Beginning of input, for ^ check. */
1162 EXT char * regeol; /* End of input, for $ check. */
1163 EXT char ** regstartp; /* Pointer to startp array. */
1164 EXT char ** regendp; /* Ditto for endp. */
1165 EXT U32 * reglastparen; /* Similarly for lastparen. */
1166 EXT char * regtill; /* How far we are required to go. */
1167 EXT U16 regflags; /* are we folding, multilining? */
1168 EXT char regprev; /* char before regbol, \n if none */
1170 /***********************************************/
1171 /* Global only to current interpreter instance */
1172 /***********************************************/
1177 struct interpreter {
1180 #define IINIT(x) INIT(x)
1183 /* pseudo environmental stuff */
1185 IEXT char ** Iorigargv;
1189 IEXT char * Iorigfilename;
1191 IEXT SV * Iwarnhook;
1192 IEXT SV * Iparsehook;
1197 IEXT char Ipatchlevel[6];
1198 IEXT char * Inrs IINIT("\n");
1199 IEXT U32 Inrschar IINIT('\n'); /* final char of rs, or 0777 if none */
1200 IEXT I32 Inrslen IINIT(1);
1201 IEXT char * Isplitstr IINIT(" ");
1202 IEXT bool Ipreprocess;
1208 IEXT bool Idoswitches;
1210 IEXT bool Idoextract;
1211 IEXT bool Isawampersand; /* must save all match strings */
1212 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1213 IEXT bool Isawi; /* study must assume case insensitive */
1216 IEXT bool Ido_undump; /* -u or dump seen? */
1217 IEXT char * Iinplace;
1218 IEXT char * Ie_tmpname;
1220 IEXT VOL U32 Idebug;
1222 /* This value may be raised by extensions for testing purposes */
1223 IEXT int Iperl_destruct_level; /* 0=none, 1=full, 2=full with checks */
1225 /* magical thingies */
1226 IEXT Time_t Ibasetime; /* $^T */
1227 IEXT SV * Iformfeed; /* $^L */
1228 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1229 IEXT char * Irs IINIT("\n"); /* $/ */
1230 IEXT U32 Irschar IINIT('\n'); /* final char of rs, or 0777 if none */
1231 IEXT STRLEN Irslen IINIT(1);
1233 IEXT char * Iofs; /* $, */
1234 IEXT STRLEN Iofslen;
1235 IEXT char * Iors; /* $\ */
1236 IEXT STRLEN Iorslen;
1237 IEXT char * Iofmt; /* $# */
1238 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1239 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1240 IEXT U32 Istatusvalue; /* $? */
1242 IEXT struct stat Istatcache; /* _ */
1244 IEXT SV * Istatname IINIT(Nullsv);
1246 /* shortcuts to various I/O objects */
1248 IEXT GV * Ilast_in_gv;
1251 IEXT GV * Idefoutgv;
1252 IEXT GV * Iargvoutgv;
1254 /* shortcuts to regexp stuff */
1258 IEXT PMOP * Icurpm; /* what to do \ interps from */
1259 IEXT I32 * Iscreamfirst;
1260 IEXT I32 * Iscreamnext;
1261 IEXT I32 Imaxscream IINIT(-1);
1262 IEXT SV * Ilastscream;
1264 /* shortcuts to misc objects */
1267 /* shortcuts to debugging objects */
1271 IEXT SV * IDBsingle;
1273 IEXT SV * IDBsignal;
1274 IEXT AV * Ilineary; /* lines of script for debugger */
1275 IEXT AV * Idbargs; /* args to call listed by caller function */
1278 IEXT HV * Idefstash; /* main symbol table */
1279 IEXT HV * Icurstash; /* symbol table for current package */
1280 IEXT HV * Idebstash; /* symbol table for perldb package */
1281 IEXT SV * Icurstname; /* name of current package */
1282 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1283 IEXT AV * Iendav; /* names of END subroutines */
1284 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1285 IEXT AV * Ipadname; /* variable names for "my" variables */
1287 /* memory management */
1288 IEXT SV ** Itmps_stack;
1289 IEXT I32 Itmps_ix IINIT(-1);
1290 IEXT I32 Itmps_floor IINIT(-1);
1292 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1293 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1294 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1295 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1297 /* funky return mechanisms */
1298 IEXT I32 Ilastspbase;
1300 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1302 /* subprocess state */
1303 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1304 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1306 /* internal state */
1307 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1308 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1309 IEXT int Idelaymagic; /* ($<,$>) = ... */
1310 IEXT bool Idirty; /* In the middle of tearing things down? */
1311 IEXT U8 Ilocalizing; /* are we processing a local() list? */
1312 IEXT bool Itainted; /* using variables controlled by $< */
1313 IEXT bool Itainting; /* doing taint checks */
1314 IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
1318 IEXT I32 Idlmax IINIT(128);
1319 IEXT char * Idebname;
1320 IEXT char * Idebdelim;
1322 /* current interpreter roots */
1324 IEXT OP * Imain_root;
1325 IEXT OP * Imain_start;
1326 IEXT OP * Ieval_root;
1327 IEXT OP * Ieval_start;
1329 /* runtime control stuff */
1330 IEXT COP * VOL Icurcop IINIT(&compiling);
1331 IEXT line_t Icopline IINIT(NOLINE);
1332 IEXT CONTEXT * Icxstack;
1333 IEXT I32 Icxstack_ix IINIT(-1);
1334 IEXT I32 Icxstack_max IINIT(128);
1335 IEXT jmp_buf Itop_env;
1339 IEXT AV * Istack; /* THE STACK */
1340 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1341 IEXT SV ** Imystack_base; /* stack->array_ary */
1342 IEXT SV ** Imystack_sp; /* stack pointer now */
1343 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1345 /* format accumulators */
1346 IEXT SV * Iformtarget;
1347 IEXT SV * Ibodytarget;
1348 IEXT SV * Itoptarget;
1350 /* statics moved here for shared library purposes */
1351 IEXT SV Istrchop; /* return value from chop */
1352 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1353 IEXT int Ilastfd; /* what to preserve mode on */
1354 IEXT char * Ioldname; /* what to preserve mode on */
1355 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1356 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1357 IEXT OP * Isortcop; /* user defined sort routine */
1358 IEXT HV * Isortstash; /* which is in some package or other */
1359 IEXT GV * Ifirstgv; /* $a */
1360 IEXT GV * Isecondgv; /* $b */
1361 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1362 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1363 IEXT SV * Imystrk; /* temp key string for do_each() */
1364 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1365 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1366 IEXT I32 Igensym; /* next symbol for getsym() to define */
1367 IEXT bool Ipreambled;
1368 IEXT AV * Ipreambleav;
1369 IEXT int Ilaststatval IINIT(-1);
1370 IEXT I32 Ilaststype IINIT(OP_STAT);
1378 struct interpreter {
1396 # include <stdarg.h>
1399 # include <varargs.h>
1406 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1407 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1409 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1410 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1417 /* The following must follow proto.h */
1420 EXT MGVTBL vtbl_sv = {magic_get,
1424 EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1425 EXT MGVTBL vtbl_envelem = {0, magic_setenv,
1428 EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1429 EXT MGVTBL vtbl_sigelem = {0, magic_setsig,
1431 EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1433 EXT MGVTBL vtbl_packelem = {magic_getpack,
1437 EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
1439 EXT MGVTBL vtbl_isa = {0, magic_setisa,
1441 EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
1443 EXT MGVTBL vtbl_arylen = {magic_getarylen,
1446 EXT MGVTBL vtbl_glob = {magic_getglob,
1449 EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
1451 EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1453 EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
1455 EXT MGVTBL vtbl_vec = {0, magic_setvec,
1457 EXT MGVTBL vtbl_pos = {magic_getpos,
1460 EXT MGVTBL vtbl_bm = {0, magic_setbm,
1462 EXT MGVTBL vtbl_uvar = {magic_getuvar,
1467 EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
1468 0, 0, magic_setamagic};
1469 EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1470 0, 0, magic_setamagic};
1471 #endif /* OVERLOAD */
1475 EXT MGVTBL vtbl_env;
1476 EXT MGVTBL vtbl_envelem;
1477 EXT MGVTBL vtbl_sig;
1478 EXT MGVTBL vtbl_sigelem;
1479 EXT MGVTBL vtbl_pack;
1480 EXT MGVTBL vtbl_packelem;
1481 EXT MGVTBL vtbl_dbline;
1482 EXT MGVTBL vtbl_isa;
1483 EXT MGVTBL vtbl_isaelem;
1484 EXT MGVTBL vtbl_arylen;
1485 EXT MGVTBL vtbl_glob;
1486 EXT MGVTBL vtbl_mglob;
1487 EXT MGVTBL vtbl_taint;
1488 EXT MGVTBL vtbl_substr;
1489 EXT MGVTBL vtbl_vec;
1490 EXT MGVTBL vtbl_pos;
1492 EXT MGVTBL vtbl_uvar;
1495 EXT MGVTBL vtbl_amagic;
1496 EXT MGVTBL vtbl_amagicelem;
1497 #endif /* OVERLOAD */
1502 EXT long amagic_generation;
1504 #define NofAMmeth 29
1506 EXT char * AMG_names[NofAMmeth][2] = {
1508 {"bool", "nomethod"},
1538 EXT char * AMG_names[NofAMmeth][2];
1539 #endif /* def INITAMAGIC */
1544 CV* table[NofAMmeth*2];
1547 typedef struct am_table AMT;
1549 #define AMGfallNEVER 1
1551 #define AMGfallYES 3
1554 fallback_amg, abs_amg,
1555 bool__amg, nomethod_amg,
1556 string_amg, numer_amg,
1557 add_amg, add_ass_amg,
1558 subtr_amg, subtr_ass_amg,
1559 mult_amg, mult_ass_amg,
1560 div_amg, div_ass_amg,
1561 mod_amg, mod_ass_amg,
1562 pow_amg, pow_ass_amg,
1563 lshift_amg, lshift_ass_amg,
1564 rshift_amg, rshift_ass_amg,
1565 band_amg, band_ass_amg,
1566 bor_amg, bor_ass_amg,
1567 bxor_amg, bxor_ass_amg,
1580 repeat_amg, repeat_ass_amg,
1581 concat_amg, concat_ass_amg,
1584 #endif /* OVERLOAD */
1586 #endif /* Include guard */