3 * Copyright (c) 1991-1997, 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.
11 * "Sam sat on the ground and put his head in his hands. 'I wish I had never
12 * come here, and I don't want to see no more magic,' he said, and fell silent."
18 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
23 #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS)
30 # define VTBL this->*vtbl
33 static void restore_magic _((void *p));
34 static int magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 f, int n, SV *val);
38 * Use the "DESTRUCTOR" scope cleanup to reinstate magic.
46 /* MGS is typedef'ed to struct magic_state in perl.h */
49 save_magic(I32 mgs_ix, SV *sv)
53 assert(SvMAGICAL(sv));
55 SAVEDESTRUCTOR(restore_magic, (void*)mgs_ix);
57 mgs = SSPTR(mgs_ix, MGS*);
59 mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv);
60 mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */
64 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
68 restore_magic(void *p)
71 MGS* mgs = SSPTR((I32)p, MGS*);
77 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
80 SvFLAGS(sv) |= mgs->mgs_flags;
84 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
87 mgs->mgs_sv = NULL; /* mark the MGS structure as restored */
89 /* If we're still on top of the stack, pop us off. (That condition
90 * will be satisfied if restore_magic was called explicitly, but *not*
91 * if it's being called via leave_scope.)
92 * The reason for doing this is that otherwise, things like sv_2cv()
93 * may leave alloc gunk on the savestack, and some code
94 * (e.g. sighandler) doesn't expect that...
96 if (PL_savestack_ix == mgs->mgs_ss_ix)
98 I32 popval = SSPOPINT;
99 assert(popval == SAVEt_DESTRUCTOR);
100 PL_savestack_ix -= 2;
102 assert(popval == SAVEt_ALLOC);
104 PL_savestack_ix -= popval;
113 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
114 MGVTBL* vtbl = mg->mg_virtual;
116 if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP))
120 if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL))
135 mgs_ix = SSNEW(sizeof(MGS));
136 save_magic(mgs_ix, sv);
139 while ((mg = *mgp) != 0) {
140 MGVTBL* vtbl = mg->mg_virtual;
141 if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) {
142 (VTBL->svt_get)(sv, mg);
143 /* Ignore this magic if it's been deleted */
144 if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) &&
145 (mg->mg_flags & MGf_GSKIP))
146 (SSPTR(mgs_ix, MGS*))->mgs_flags = 0;
148 /* Advance to next magic (complicated by possible deletion) */
149 if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) {
150 mgp = &mg->mg_moremagic;
154 mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */
157 restore_magic((void*)mgs_ix);
169 mgs_ix = SSNEW(sizeof(MGS));
170 save_magic(mgs_ix, sv);
172 for (mg = SvMAGIC(sv); mg; mg = nextmg) {
173 MGVTBL* vtbl = mg->mg_virtual;
174 nextmg = mg->mg_moremagic; /* it may delete itself */
175 if (mg->mg_flags & MGf_GSKIP) {
176 mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */
177 (SSPTR(mgs_ix, MGS*))->mgs_flags = 0;
179 if (vtbl && (vtbl->svt_set != NULL))
180 (VTBL->svt_set)(sv, mg);
183 restore_magic((void*)mgs_ix);
194 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
195 MGVTBL* vtbl = mg->mg_virtual;
196 if (vtbl && (vtbl->svt_len != NULL)) {
199 mgs_ix = SSNEW(sizeof(MGS));
200 save_magic(mgs_ix, sv);
201 /* omit MGf_GSKIP -- not changed here */
202 len = (VTBL->svt_len)(sv, mg);
203 restore_magic((void*)mgs_ix);
208 junk = SvPV(sv, len);
218 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
219 MGVTBL* vtbl = mg->mg_virtual;
220 if (vtbl && (vtbl->svt_len != NULL)) {
223 mgs_ix = SSNEW(sizeof(MGS));
224 save_magic(mgs_ix, sv);
225 /* omit MGf_GSKIP -- not changed here */
226 len = (VTBL->svt_len)(sv, mg);
227 restore_magic((void*)mgs_ix);
234 len = AvFILLp((AV *) sv); /* Fallback to non-tied array */
239 croak("Size magic not implemented");
251 mgs_ix = SSNEW(sizeof(MGS));
252 save_magic(mgs_ix, sv);
254 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
255 MGVTBL* vtbl = mg->mg_virtual;
256 /* omit GSKIP -- never set here */
258 if (vtbl && (vtbl->svt_clear != NULL))
259 (VTBL->svt_clear)(sv, mg);
262 restore_magic((void*)mgs_ix);
267 mg_find(SV *sv, int type)
270 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
271 if (mg->mg_type == type)
278 mg_copy(SV *sv, SV *nsv, char *key, I32 klen)
282 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
283 if (isUPPER(mg->mg_type)) {
285 mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj,
286 toLOWER(mg->mg_type), key, klen);
298 for (mg = SvMAGIC(sv); mg; mg = moremagic) {
299 MGVTBL* vtbl = mg->mg_virtual;
300 moremagic = mg->mg_moremagic;
301 if (vtbl && (vtbl->svt_free != NULL))
302 (VTBL->svt_free)(sv, mg);
303 if (mg->mg_ptr && mg->mg_type != 'g')
305 Safefree(mg->mg_ptr);
306 else if (mg->mg_len == HEf_SVKEY)
307 SvREFCNT_dec((SV*)mg->mg_ptr);
308 if (mg->mg_flags & MGf_REFCOUNTED)
309 SvREFCNT_dec(mg->mg_obj);
316 #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
321 magic_regdata_cnt(SV *sv, MAGIC *mg)
329 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
330 if (mg->mg_obj) /* @+ */
333 return rx->lastparen;
340 magic_regdatum_get(SV *sv, MAGIC *mg)
349 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
353 if (paren <= rx->nparens &&
354 (s = rx->startp[paren]) &&
355 (t = rx->endp[paren]))
357 if (mg->mg_obj) /* @+ */
368 magic_len(SV *sv, MAGIC *mg)
377 switch (*mg->mg_ptr) {
378 case '1': case '2': case '3': case '4':
379 case '5': case '6': case '7': case '8': case '9': case '&':
380 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
381 paren = atoi(mg->mg_ptr);
383 if (paren <= rx->nparens &&
384 (s = rx->startp[paren]) &&
385 (t = rx->endp[paren]))
394 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
395 paren = rx->lastparen;
401 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
402 if ((s = rx->subbeg) && rx->startp[0]) {
403 i = rx->startp[0] - s;
410 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
411 if (rx->subend && (s = rx->endp[0])) {
419 return (STRLEN)PL_ofslen;
421 return (STRLEN)PL_orslen;
424 if (!SvPOK(sv) && SvNIOK(sv))
441 static char buffer[50] ;
446 sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ;
448 for (i = 0; i < SvCUR(sv) ; ++ i) {
449 sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ;
450 strcat(buffer, buf1) ;
460 magic_get(SV *sv, MAGIC *mg)
469 switch (*mg->mg_ptr) {
470 case '\001': /* ^A */
471 sv_setsv(sv, PL_bodytarget);
473 case '\002': /* ^B */
474 /* printf("magic_get $^B: ") ; */
475 if (PL_curcop->cop_warnings == WARN_NONE)
476 /* printf("WARN_NONE\n"), */
477 sv_setpvn(sv, WARN_NONEstring, WARNsize) ;
478 else if (PL_curcop->cop_warnings == WARN_ALL)
479 /* printf("WARN_ALL\n"), */
480 sv_setpvn(sv, WARN_ALLstring, WARNsize) ;
482 /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */
483 sv_setsv(sv, PL_curcop->cop_warnings);
485 case '\003': /* ^C */
486 sv_setiv(sv, (IV)PL_minus_c);
489 case '\004': /* ^D */
490 sv_setiv(sv, (IV)(PL_debug & 32767));
492 case '\005': /* ^E */
495 # include <descrip.h>
496 # include <starlet.h>
498 $DESCRIPTOR(msgdsc,msg);
499 sv_setnv(sv,(double) vaxc$errno);
500 if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1)
501 sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length);
507 if (!(_emx_env & 0x200)) { /* Under DOS */
508 sv_setnv(sv, (double)errno);
509 sv_setpv(sv, errno ? Strerror(errno) : "");
511 if (errno != errno_isOS2) {
512 int tmp = _syserrno();
513 if (tmp) /* 2nd call to _syserrno() makes it 0 */
516 sv_setnv(sv, (double)Perl_rc);
517 sv_setpv(sv, os2error(Perl_rc));
522 DWORD dwErr = GetLastError();
523 sv_setnv(sv, (double)dwErr);
529 PerlProc_GetSysMsg(sMsg, dwLen, dwErr);
530 sv_setpvn(sv, sMsg, dwLen);
531 PerlProc_FreeBuf(sMsg);
533 win32_str_os_error(sv, dwErr);
541 sv_setnv(sv, (double)errno);
542 sv_setpv(sv, errno ? Strerror(errno) : "");
546 SvNOK_on(sv); /* what a wonderful hack! */
548 case '\006': /* ^F */
549 sv_setiv(sv, (IV)PL_maxsysfd);
551 case '\010': /* ^H */
552 sv_setiv(sv, (IV)PL_hints);
554 case '\011': /* ^I */ /* NOT \t in EBCDIC */
556 sv_setpv(sv, PL_inplace);
558 sv_setsv(sv, &PL_sv_undef);
560 case '\017': /* ^O */
561 sv_setpv(sv, PL_osname);
563 case '\020': /* ^P */
564 sv_setiv(sv, (IV)PL_perldb);
566 case '\023': /* ^S */
569 if (PL_lex_state != LEX_NOTPARSING)
577 case '\024': /* ^T */
579 sv_setnv(sv, PL_basetime);
581 sv_setiv(sv, (IV)PL_basetime);
584 case '\027': /* ^W */
585 sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON));
587 case '1': case '2': case '3': case '4':
588 case '5': case '6': case '7': case '8': case '9': case '&':
589 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
591 * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj));
592 * XXX Does the new way break anything?
594 paren = atoi(mg->mg_ptr);
596 if (paren <= rx->nparens &&
597 (s = rx->startp[paren]) &&
598 (t = rx->endp[paren]))
605 was_tainted = PL_tainted;
610 PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx));
615 sv_setsv(sv,&PL_sv_undef);
618 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
619 paren = rx->lastparen;
623 sv_setsv(sv,&PL_sv_undef);
626 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
627 if ((s = rx->subbeg) && rx->startp[0]) {
628 i = rx->startp[0] - s;
632 sv_setsv(sv,&PL_sv_undef);
635 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
636 if (rx->subend && (s = rx->endp[0])) {
641 sv_setsv(sv,&PL_sv_undef);
645 if (GvIO(PL_last_in_gv)) {
646 sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv)));
652 sv_setiv(sv, (IV)STATUS_CURRENT);
653 #ifdef COMPLEX_STATUS
654 LvTARGOFF(sv) = PL_statusvalue;
655 LvTARGLEN(sv) = PL_statusvalue_vms;
660 s = IoTOP_NAME(GvIOp(PL_defoutgv));
664 sv_setpv(sv,GvENAME(PL_defoutgv));
669 s = IoFMT_NAME(GvIOp(PL_defoutgv));
671 s = GvENAME(PL_defoutgv);
676 sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv)));
679 sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv)));
682 sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv)));
690 WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase));
693 sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 );
696 sv_setpvn(sv,PL_ofs,PL_ofslen);
699 sv_setpvn(sv,PL_ors,PL_orslen);
702 sv_setpv(sv,PL_ofmt);
706 sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno));
707 sv_setpv(sv, errno ? Strerror(errno) : "");
710 int saveerrno = errno;
711 sv_setnv(sv, (double)errno);
713 if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc));
716 sv_setpv(sv, errno ? Strerror(errno) : "");
720 SvNOK_on(sv); /* what a wonderful hack! */
723 sv_setiv(sv, (IV)PL_uid);
726 sv_setiv(sv, (IV)PL_euid);
729 sv_setiv(sv, (IV)PL_gid);
730 sv_setpvf(sv, "%Vd", (IV)PL_gid);
733 sv_setiv(sv, (IV)PL_egid);
734 sv_setpvf(sv, "%Vd", (IV)PL_egid);
738 Groups_t gary[NGROUPS];
739 i = getgroups(NGROUPS,gary);
741 sv_catpvf(sv, " %Vd", (IV)gary[i]);
744 SvIOK_on(sv); /* what a wonderful hack! */
752 sv_setsv(sv, thr->errsv);
754 #endif /* USE_THREADS */
760 magic_getuvar(SV *sv, MAGIC *mg)
762 struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
764 if (uf && uf->uf_val)
765 (*uf->uf_val)(uf->uf_index, sv);
770 magic_setenv(SV *sv, MAGIC *mg)
781 #ifdef DYNAMIC_ENV_FETCH
782 /* We just undefd an environment var. Is a replacement */
783 /* waiting in the wings? */
786 if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE)))
787 s = SvPV(*valp, len);
791 #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS)
792 /* And you'll never guess what the dog had */
793 /* in its mouth... */
795 MgTAINTEDDIR_off(mg);
797 if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) {
798 char pathbuf[256], eltbuf[256], *cp, *elt = s;
802 do { /* DCL$PATH may be a search list */
803 while (1) { /* as may dev portion of any element */
804 if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) {
805 if ( *(cp+1) == '.' || *(cp+1) == '-' ||
806 cando_by_name(S_IWUSR,0,elt) ) {
811 if ((cp = strchr(elt, ':')) != Nullch)
813 if (my_trnlnm(elt, eltbuf, j++))
819 } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf));
822 if (s && klen == 4 && strEQ(ptr,"PATH")) {
823 char *strend = s + len;
828 s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf,
831 if (i >= sizeof tmpbuf /* too long -- assume the worst */
833 || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) {
840 #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */
846 magic_clearenv(SV *sv, MAGIC *mg)
848 my_setenv(MgPV(mg,PL_na),Nullch);
853 magic_set_all_env(SV *sv, MAGIC *mg)
856 die("Can't make list assignment to %%ENV on this system");
861 magic_clear_all_env(sv,mg);
862 hv_iterinit((HV*)sv);
863 while (entry = hv_iternext((HV*)sv)) {
865 my_setenv(hv_iterkey(entry, &keylen),
866 SvPV(hv_iterval((HV*)sv, entry), PL_na));
874 magic_clear_all_env(SV *sv, MAGIC *mg)
877 die("Can't make list assignment to %%ENV on this system");
880 char *envv = GetEnvironmentStrings();
884 char *end = strchr(cur,'=');
885 if (end && end != cur) {
887 my_setenv(cur,Nullch);
889 cur += strlen(end+1)+1;
891 else if ((len = strlen(cur)))
894 FreeEnvironmentStrings(envv);
898 if (environ == PL_origenviron)
899 New(901, environ, 1, char*);
901 for (i = 0; environ[i]; i++)
902 Safefree(environ[i]);
911 magic_getsig(SV *sv, MAGIC *mg)
914 /* Are we fetching a signal entry? */
915 i = whichsig(MgPV(mg,PL_na));
918 sv_setsv(sv,PL_psig_ptr[i]);
920 Sighandler_t sigstate = rsignal_state(i);
922 /* cache state so we don't fetch it again */
923 if(sigstate == SIG_IGN)
924 sv_setpv(sv,"IGNORE");
926 sv_setsv(sv,&PL_sv_undef);
927 PL_psig_ptr[i] = SvREFCNT_inc(sv);
934 magic_clearsig(SV *sv, MAGIC *mg)
937 /* Are we clearing a signal entry? */
938 i = whichsig(MgPV(mg,PL_na));
941 SvREFCNT_dec(PL_psig_ptr[i]);
944 if(PL_psig_name[i]) {
945 SvREFCNT_dec(PL_psig_name[i]);
953 magic_setsig(SV *sv, MAGIC *mg)
963 if (strEQ(s,"__DIE__"))
965 else if (strEQ(s,"__WARN__"))
967 else if (strEQ(s,"__PARSE__"))
970 croak("No such hook: %s", s);
978 i = whichsig(s); /* ...no, a brick */
980 if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM"))
981 warner(WARN_SIGNAL, "No such signal: SIG%s", s);
984 SvREFCNT_dec(PL_psig_name[i]);
985 SvREFCNT_dec(PL_psig_ptr[i]);
986 PL_psig_ptr[i] = SvREFCNT_inc(sv);
987 SvTEMP_off(sv); /* Make sure it doesn't go away on us */
988 PL_psig_name[i] = newSVpvn(s, len);
989 SvREADONLY_on(PL_psig_name[i]);
991 if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) {
993 (void)rsignal(i, PL_sighandlerp);
995 *svp = SvREFCNT_inc(sv);
998 s = SvPV_force(sv,len);
999 if (strEQ(s,"IGNORE")) {
1001 (void)rsignal(i, SIG_IGN);
1005 else if (strEQ(s,"DEFAULT") || !*s) {
1007 (void)rsignal(i, SIG_DFL);
1013 * We should warn if HINT_STRICT_REFS, but without
1014 * access to a known hint bit in a known OP, we can't
1015 * tell whether HINT_STRICT_REFS is in force or not.
1017 if (!strchr(s,':') && !strchr(s,'\''))
1018 sv_insert(sv, 0, 0, "main::", 6);
1020 (void)rsignal(i, PL_sighandlerp);
1022 *svp = SvREFCNT_inc(sv);
1028 magic_setisa(SV *sv, MAGIC *mg)
1030 PL_sub_generation++;
1037 magic_setamagic(SV *sv, MAGIC *mg)
1039 /* HV_badAMAGIC_on(Sv_STASH(sv)); */
1040 PL_amagic_generation++;
1044 #endif /* OVERLOAD */
1047 magic_getnkeys(SV *sv, MAGIC *mg)
1049 HV *hv = (HV*)LvTARG(sv);
1054 (void) hv_iterinit(hv);
1055 if (! SvTIED_mg((SV*)hv, 'P'))
1059 while (entry = hv_iternext(hv)) {
1065 sv_setiv(sv, (IV)i);
1070 magic_setnkeys(SV *sv, MAGIC *mg)
1073 hv_ksplit((HV*)LvTARG(sv), SvIV(sv));
1078 /* caller is responsible for stack switching/cleanup */
1080 magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val)
1086 PUSHs(SvTIED_obj(sv, mg));
1089 if (mg->mg_len >= 0)
1090 PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len)));
1091 else if (mg->mg_len == HEf_SVKEY)
1092 PUSHs((SV*)mg->mg_ptr);
1094 else if (mg->mg_type == 'p') {
1095 PUSHs(sv_2mortal(newSViv(mg->mg_len)));
1103 return perl_call_method(meth, flags);
1107 magic_methpack(SV *sv, MAGIC *mg, char *meth)
1113 PUSHSTACKi(PERLSI_MAGIC);
1115 if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) {
1116 sv_setsv(sv, *PL_stack_sp--);
1126 magic_getpack(SV *sv, MAGIC *mg)
1128 magic_methpack(sv,mg,"FETCH");
1130 mg->mg_flags |= MGf_GSKIP;
1135 magic_setpack(SV *sv, MAGIC *mg)
1139 PUSHSTACKi(PERLSI_MAGIC);
1140 magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv);
1147 magic_clearpack(SV *sv, MAGIC *mg)
1149 return magic_methpack(sv,mg,"DELETE");
1154 magic_sizepack(SV *sv, MAGIC *mg)
1161 PUSHSTACKi(PERLSI_MAGIC);
1162 if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) {
1163 sv = *PL_stack_sp--;
1164 retval = (U32) SvIV(sv)-1;
1172 int magic_wipepack(SV *sv, MAGIC *mg)
1177 PUSHSTACKi(PERLSI_MAGIC);
1179 XPUSHs(SvTIED_obj(sv, mg));
1181 perl_call_method("CLEAR", G_SCALAR|G_DISCARD);
1188 magic_nextpack(SV *sv, MAGIC *mg, SV *key)
1191 char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY";
1195 PUSHSTACKi(PERLSI_MAGIC);
1198 PUSHs(SvTIED_obj(sv, mg));
1203 if (perl_call_method(meth, G_SCALAR))
1204 sv_setsv(key, *PL_stack_sp--);
1213 magic_existspack(SV *sv, MAGIC *mg)
1215 return magic_methpack(sv,mg,"EXISTS");
1219 magic_setdbline(SV *sv, MAGIC *mg)
1229 svp = av_fetch(GvAV(gv),
1230 atoi(MgPV(mg,PL_na)), FALSE);
1231 if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp)))
1234 warn("Can't break at that line\n");
1239 magic_getarylen(SV *sv, MAGIC *mg)
1242 sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase);
1247 magic_setarylen(SV *sv, MAGIC *mg)
1250 av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase);
1255 magic_getpos(SV *sv, MAGIC *mg)
1257 SV* lsv = LvTARG(sv);
1259 if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) {
1260 mg = mg_find(lsv, 'g');
1261 if (mg && mg->mg_len >= 0) {
1265 sv_pos_b2u(lsv, &i);
1266 sv_setiv(sv, i + PL_curcop->cop_arybase);
1275 magic_setpos(SV *sv, MAGIC *mg)
1277 SV* lsv = LvTARG(sv);
1285 if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv))
1286 mg = mg_find(lsv, 'g');
1290 sv_magic(lsv, (SV*)0, 'g', Nullch, 0);
1291 mg = mg_find(lsv, 'g');
1293 else if (!SvOK(sv)) {
1297 len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv);
1299 pos = SvIV(sv) - PL_curcop->cop_arybase;
1302 ulen = sv_len_utf8(lsv);
1319 sv_pos_u2b(lsv, &p, 0);
1324 mg->mg_flags &= ~MGf_MINMATCH;
1330 magic_getglob(SV *sv, MAGIC *mg)
1332 if (SvFAKE(sv)) { /* FAKE globs can get coerced */
1334 gv_efullname3(sv,((GV*)sv), "*");
1338 gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */
1343 magic_setglob(SV *sv, MAGIC *mg)
1350 s = SvPV(sv, PL_na);
1351 if (*s == '*' && s[1])
1353 gv = gv_fetchpv(s,TRUE, SVt_PVGV);
1358 GvGP(sv) = gp_ref(GvGP(gv));
1363 magic_getsubstr(SV *sv, MAGIC *mg)
1366 SV *lsv = LvTARG(sv);
1367 char *tmps = SvPV(lsv,len);
1368 I32 offs = LvTARGOFF(sv);
1369 I32 rem = LvTARGLEN(sv);
1373 if (rem + offs > len)
1375 sv_setpvn(sv, tmps + offs, (STRLEN)rem);
1380 magic_setsubstr(SV *sv, MAGIC *mg)
1383 char *tmps = SvPV(sv,len);
1384 sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len);
1389 magic_gettaint(SV *sv, MAGIC *mg)
1392 TAINT_IF((mg->mg_len & 1) ||
1393 (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */
1398 magic_settaint(SV *sv, MAGIC *mg)
1401 if (PL_localizing) {
1402 if (PL_localizing == 1)
1407 else if (PL_tainted)
1415 magic_getvec(SV *sv, MAGIC *mg)
1417 SV *lsv = LvTARG(sv);
1419 unsigned long retnum;
1429 s = (unsigned char *) SvPV(lsv, lsvlen);
1430 offset = LvTARGOFF(sv);
1431 size = LvTARGLEN(sv);
1432 len = (offset + size + 7) / 8;
1434 /* Copied from pp_vec() */
1442 if (offset >= lsvlen)
1445 retnum = (unsigned long) s[offset] << 8;
1447 else if (size == 32) {
1448 if (offset >= lsvlen)
1450 else if (offset + 1 >= lsvlen)
1451 retnum = (unsigned long) s[offset] << 24;
1452 else if (offset + 2 >= lsvlen)
1453 retnum = ((unsigned long) s[offset] << 24) +
1454 ((unsigned long) s[offset + 1] << 16);
1456 retnum = ((unsigned long) s[offset] << 24) +
1457 ((unsigned long) s[offset + 1] << 16) +
1458 (s[offset + 2] << 8);
1463 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1468 else if (size == 16)
1469 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1470 else if (size == 32)
1471 retnum = ((unsigned long) s[offset] << 24) +
1472 ((unsigned long) s[offset + 1] << 16) +
1473 (s[offset + 2] << 8) + s[offset+3];
1476 sv_setuv(sv, (UV)retnum);
1481 magic_setvec(SV *sv, MAGIC *mg)
1483 do_vecset(sv); /* XXX slurp this routine */
1488 magic_getdefelem(SV *sv, MAGIC *mg)
1491 if (LvTARGLEN(sv)) {
1493 SV *ahv = LvTARG(sv);
1494 if (SvTYPE(ahv) == SVt_PVHV) {
1495 HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0);
1500 SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0);
1506 AV* av = (AV*)LvTARG(sv);
1507 if ((I32)LvTARGOFF(sv) <= AvFILL(av))
1508 targ = AvARRAY(av)[LvTARGOFF(sv)];
1510 if (targ && targ != &PL_sv_undef) {
1511 dTHR; /* just for SvREFCNT_dec */
1512 /* somebody else defined it for us */
1513 SvREFCNT_dec(LvTARG(sv));
1514 LvTARG(sv) = SvREFCNT_inc(targ);
1516 SvREFCNT_dec(mg->mg_obj);
1517 mg->mg_obj = Nullsv;
1518 mg->mg_flags &= ~MGf_REFCOUNTED;
1523 sv_setsv(sv, targ ? targ : &PL_sv_undef);
1528 magic_setdefelem(SV *sv, MAGIC *mg)
1533 sv_setsv(LvTARG(sv), sv);
1534 SvSETMAGIC(LvTARG(sv));
1540 vivify_defelem(SV *sv)
1542 dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/
1546 if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y')))
1549 SV *ahv = LvTARG(sv);
1550 if (SvTYPE(ahv) == SVt_PVHV) {
1551 HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0);
1556 SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0);
1560 if (!value || value == &PL_sv_undef)
1561 croak(PL_no_helem, SvPV(mg->mg_obj, PL_na));
1564 AV* av = (AV*)LvTARG(sv);
1565 if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av))
1566 LvTARG(sv) = Nullsv; /* array can't be extended */
1568 SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE);
1569 if (!svp || (value = *svp) == &PL_sv_undef)
1570 croak(PL_no_aelem, (I32)LvTARGOFF(sv));
1573 (void)SvREFCNT_inc(value);
1574 SvREFCNT_dec(LvTARG(sv));
1577 SvREFCNT_dec(mg->mg_obj);
1578 mg->mg_obj = Nullsv;
1579 mg->mg_flags &= ~MGf_REFCOUNTED;
1583 magic_setmglob(SV *sv, MAGIC *mg)
1591 magic_setbm(SV *sv, MAGIC *mg)
1593 sv_unmagic(sv, 'B');
1599 magic_setfm(SV *sv, MAGIC *mg)
1601 sv_unmagic(sv, 'f');
1607 magic_setuvar(SV *sv, MAGIC *mg)
1609 struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
1611 if (uf && uf->uf_set)
1612 (*uf->uf_set)(uf->uf_index, sv);
1617 magic_freeregexp(SV *sv, MAGIC *mg)
1619 regexp *re = (regexp *)mg->mg_obj;
1624 #ifdef USE_LOCALE_COLLATE
1626 magic_setcollxfrm(SV *sv, MAGIC *mg)
1629 * RenE<eacute> Descartes said "I think not."
1630 * and vanished with a faint plop.
1633 Safefree(mg->mg_ptr);
1639 #endif /* USE_LOCALE_COLLATE */
1642 magic_set(SV *sv, MAGIC *mg)
1648 switch (*mg->mg_ptr) {
1649 case '\001': /* ^A */
1650 sv_setsv(PL_bodytarget, sv);
1652 case '\002': /* ^B */
1653 if ( ! (PL_dowarn & G_WARN_ALL_MASK)) {
1654 if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize))
1655 PL_compiling.cop_warnings = WARN_ALL;
1656 else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize))
1657 PL_compiling.cop_warnings = WARN_NONE;
1659 if (PL_compiling.cop_warnings != WARN_NONE &&
1660 PL_compiling.cop_warnings != WARN_ALL)
1661 sv_setsv(PL_compiling.cop_warnings, sv);
1663 PL_compiling.cop_warnings = newSVsv(sv) ;
1668 case '\003': /* ^C */
1669 PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1672 case '\004': /* ^D */
1673 PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000;
1674 DEBUG_x(dump_all());
1676 case '\005': /* ^E */
1678 set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1681 SetLastError( SvIV(sv) );
1683 /* will anyone ever use this? */
1684 SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4);
1688 case '\006': /* ^F */
1689 PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1691 case '\010': /* ^H */
1692 PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1694 case '\011': /* ^I */ /* NOT \t in EBCDIC */
1696 Safefree(PL_inplace);
1698 PL_inplace = savepv(SvPV(sv,PL_na));
1700 PL_inplace = Nullch;
1702 case '\017': /* ^O */
1704 Safefree(PL_osname);
1706 PL_osname = savepv(SvPV(sv,PL_na));
1710 case '\020': /* ^P */
1711 PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1713 case '\024': /* ^T */
1715 PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv));
1717 PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1720 case '\027': /* ^W */
1721 if ( ! (PL_dowarn & G_WARN_ALL_MASK)) {
1722 i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1723 PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ;
1727 if (PL_localizing) {
1728 if (PL_localizing == 1)
1729 save_sptr((SV**)&PL_last_in_gv);
1731 else if (SvOK(sv) && GvIO(PL_last_in_gv))
1732 IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv);
1735 Safefree(IoTOP_NAME(GvIOp(PL_defoutgv)));
1736 IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na));
1737 IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
1740 Safefree(IoFMT_NAME(GvIOp(PL_defoutgv)));
1741 IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na));
1742 IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
1745 IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1748 IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1749 if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L)
1750 IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L;
1753 IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1757 IO *io = GvIOp(PL_defoutgv);
1758 if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0)
1759 IoFLAGS(io) &= ~IOf_FLUSH;
1761 if (!(IoFLAGS(io) & IOf_FLUSH)) {
1762 PerlIO *ofp = IoOFP(io);
1764 (void)PerlIO_flush(ofp);
1765 IoFLAGS(io) |= IOf_FLUSH;
1771 i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1772 PL_multiline = (i != 0);
1775 SvREFCNT_dec(PL_nrs);
1776 PL_nrs = newSVsv(sv);
1777 SvREFCNT_dec(PL_rs);
1778 PL_rs = SvREFCNT_inc(PL_nrs);
1783 if (SvOK(sv) || SvGMAGICAL(sv))
1784 PL_ors = savepv(SvPV(sv,PL_orslen));
1793 PL_ofs = savepv(SvPV(sv, PL_ofslen));
1798 PL_ofmt = savepv(SvPV(sv,PL_na));
1801 PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1804 #ifdef COMPLEX_STATUS
1805 if (PL_localizing == 2) {
1806 PL_statusvalue = LvTARGOFF(sv);
1807 PL_statusvalue_vms = LvTARGLEN(sv);
1811 #ifdef VMSISH_STATUS
1813 STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)));
1816 STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1819 SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0,
1820 (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno);
1823 PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1824 if (PL_delaymagic) {
1825 PL_delaymagic |= DM_RUID;
1826 break; /* don't do magic till later */
1829 (void)setruid((Uid_t)PL_uid);
1832 (void)setreuid((Uid_t)PL_uid, (Uid_t)-1);
1834 #ifdef HAS_SETRESUID
1835 (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1);
1837 if (PL_uid == PL_euid) /* special case $< = $> */
1838 (void)PerlProc_setuid(PL_uid);
1840 PL_uid = (I32)PerlProc_getuid();
1841 croak("setruid() not implemented");
1846 PL_uid = (I32)PerlProc_getuid();
1847 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
1850 PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1851 if (PL_delaymagic) {
1852 PL_delaymagic |= DM_EUID;
1853 break; /* don't do magic till later */
1856 (void)seteuid((Uid_t)PL_euid);
1859 (void)setreuid((Uid_t)-1, (Uid_t)PL_euid);
1861 #ifdef HAS_SETRESUID
1862 (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1);
1864 if (PL_euid == PL_uid) /* special case $> = $< */
1865 PerlProc_setuid(PL_euid);
1867 PL_euid = (I32)PerlProc_geteuid();
1868 croak("seteuid() not implemented");
1873 PL_euid = (I32)PerlProc_geteuid();
1874 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
1877 PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1878 if (PL_delaymagic) {
1879 PL_delaymagic |= DM_RGID;
1880 break; /* don't do magic till later */
1883 (void)setrgid((Gid_t)PL_gid);
1886 (void)setregid((Gid_t)PL_gid, (Gid_t)-1);
1888 #ifdef HAS_SETRESGID
1889 (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1);
1891 if (PL_gid == PL_egid) /* special case $( = $) */
1892 (void)PerlProc_setgid(PL_gid);
1894 PL_gid = (I32)PerlProc_getgid();
1895 croak("setrgid() not implemented");
1900 PL_gid = (I32)PerlProc_getgid();
1901 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
1904 #ifdef HAS_SETGROUPS
1906 char *p = SvPV(sv, PL_na);
1907 Groups_t gary[NGROUPS];
1909 SET_NUMERIC_STANDARD();
1912 PL_egid = I_V(atof(p));
1913 for (i = 0; i < NGROUPS; ++i) {
1914 while (*p && !isSPACE(*p))
1920 gary[i] = I_V(atof(p));
1923 (void)setgroups(i, gary);
1925 #else /* HAS_SETGROUPS */
1926 PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1927 #endif /* HAS_SETGROUPS */
1928 if (PL_delaymagic) {
1929 PL_delaymagic |= DM_EGID;
1930 break; /* don't do magic till later */
1933 (void)setegid((Gid_t)PL_egid);
1936 (void)setregid((Gid_t)-1, (Gid_t)PL_egid);
1938 #ifdef HAS_SETRESGID
1939 (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1);
1941 if (PL_egid == PL_gid) /* special case $) = $( */
1942 (void)PerlProc_setgid(PL_egid);
1944 PL_egid = (I32)PerlProc_getegid();
1945 croak("setegid() not implemented");
1950 PL_egid = (I32)PerlProc_getegid();
1951 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
1954 PL_chopset = SvPV_force(sv,PL_na);
1960 /* See if all the arguments are contiguous in memory */
1961 for (i = 1; i < PL_origargc; i++) {
1962 if (PL_origargv[i] == s + 1
1964 || PL_origargv[i] == s + 2
1969 s += strlen(s); /* this one is ok too */
1974 /* can grab env area too? */
1975 if (PL_origenviron && (PL_origenviron[0] == s + 1
1977 || (PL_origenviron[0] == s + 9 && (s += 8))
1980 my_setenv("NoNe SuCh", Nullch);
1981 /* force copy of environment */
1982 for (i = 0; PL_origenviron[i]; i++)
1983 if (PL_origenviron[i] == s + 1) {
1990 PL_origalen = s - PL_origargv[0];
1992 s = SvPV_force(sv,len);
1994 if (i >= PL_origalen) {
1996 /* don't allow system to limit $0 seen by script */
1997 /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */
1998 Copy(s, PL_origargv[0], i, char);
1999 s = PL_origargv[0]+i;
2003 Copy(s, PL_origargv[0], i, char);
2004 s = PL_origargv[0]+i;
2006 while (++i < PL_origalen)
2008 s = PL_origargv[0]+i;
2009 for (i = 1; i < PL_origargc; i++)
2010 PL_origargv[i] = Nullch;
2015 sv_setsv(thr->errsv, sv);
2017 #endif /* USE_THREADS */
2024 magic_mutexfree(SV *sv, MAGIC *mg)
2027 DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n",
2028 (unsigned long)thr, (unsigned long)sv);)
2030 croak("panic: magic_mutexfree");
2031 MUTEX_DESTROY(MgMUTEXP(mg));
2032 COND_DESTROY(MgCONDP(mg));
2035 #endif /* USE_THREADS */
2040 register char **sigv;
2042 for (sigv = PL_sig_name+1; *sigv; sigv++)
2043 if (strEQ(sig,*sigv))
2044 return PL_sig_num[sigv - PL_sig_name];
2046 if (strEQ(sig,"CHLD"))
2050 if (strEQ(sig,"CLD"))
2059 unwind_handler_stack(void *p)
2062 U32 flags = *(U32*)p;
2065 PL_savestack_ix -= 5; /* Unprotect save in progress. */
2066 /* cxstack_ix-- Not needed, die already unwound it. */
2068 SvREFCNT_dec(sig_sv);
2077 SV *sv, *tSv = PL_Sv;
2081 I32 o_save_i = PL_savestack_ix, type;
2084 if (PL_savestack_ix + 15 <= PL_savestack_max)
2086 if (PL_markstack_ptr < PL_markstack_max - 2)
2088 if (PL_retstack_ix < PL_retstack_max - 2)
2090 if (PL_scopestack_ix < PL_scopestack_max - 3)
2093 if (!PL_psig_ptr[sig])
2094 die("Signal SIG%s received, but no signal handler set.\n",
2097 /* Max number of items pushed there is 3*n or 4. We cannot fix
2098 infinity, so we fix 4 (in fact 5): */
2100 PL_savestack_ix += 5; /* Protect save in progress. */
2101 o_save_i = PL_savestack_ix;
2102 SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags);
2105 PL_markstack_ptr++; /* Protect mark. */
2108 PL_retstack[PL_retstack_ix] = NULL;
2111 PL_scopestack_ix += 1;
2112 /* sv_2cv is too complicated, try a simpler variant first: */
2113 if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig]))
2114 || SvTYPE(cv) != SVt_PVCV)
2115 cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE);
2117 if (!cv || !CvROOT(cv)) {
2118 if (ckWARN(WARN_SIGNAL))
2119 warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n",
2120 PL_sig_name[sig], (gv ? GvENAME(gv)
2127 if(PL_psig_name[sig]) {
2128 sv = SvREFCNT_inc(PL_psig_name[sig]);
2132 sv = sv_newmortal();
2133 sv_setpv(sv,PL_sig_name[sig]);
2136 PUSHSTACKi(PERLSI_SIGNAL);
2141 perl_call_sv((SV*)cv, G_DISCARD);
2146 PL_savestack_ix -= 8; /* Unprotect save in progress. */
2152 PL_scopestack_ix -= 1;
2155 PL_op = myop; /* Apparently not needed... */
2157 PL_Sv = tSv; /* Restore global temporaries. */