3 * Copyright (c) 1991-1999, 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, const 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]) != -1 &&
355 (t = rx->endp[paren]) != -1)
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)) {
383 paren = atoi(mg->mg_ptr);
385 if (paren <= rx->nparens &&
386 (s1 = rx->startp[paren]) != -1 &&
387 (t1 = rx->endp[paren]) != -1)
396 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
397 paren = rx->lastparen;
403 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
404 if (rx->startp[0] != -1) {
412 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
413 if (rx->endp[0] != -1) {
414 i = rx->sublen - rx->endp[0];
421 return (STRLEN)PL_ofslen;
423 return (STRLEN)PL_orslen;
426 if (!SvPOK(sv) && SvNIOK(sv)) {
445 static char buffer[50] ;
450 sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ;
452 for (i = 0; i < SvCUR(sv) ; ++ i) {
453 sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ;
454 strcat(buffer, buf1) ;
464 magic_get(SV *sv, MAGIC *mg)
473 switch (*mg->mg_ptr) {
474 case '\001': /* ^A */
475 sv_setsv(sv, PL_bodytarget);
477 case '\002': /* ^B */
478 /* printf("magic_get $^B: ") ; */
479 if (PL_curcop->cop_warnings == WARN_NONE)
480 /* printf("WARN_NONE\n"), */
481 sv_setpvn(sv, WARN_NONEstring, WARNsize) ;
482 else if (PL_curcop->cop_warnings == WARN_ALL)
483 /* printf("WARN_ALL\n"), */
484 sv_setpvn(sv, WARN_ALLstring, WARNsize) ;
486 /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */
487 sv_setsv(sv, PL_curcop->cop_warnings);
489 case '\003': /* ^C */
490 sv_setiv(sv, (IV)PL_minus_c);
493 case '\004': /* ^D */
494 sv_setiv(sv, (IV)(PL_debug & 32767));
496 case '\005': /* ^E */
499 # include <descrip.h>
500 # include <starlet.h>
502 $DESCRIPTOR(msgdsc,msg);
503 sv_setnv(sv,(double) vaxc$errno);
504 if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1)
505 sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length);
511 if (!(_emx_env & 0x200)) { /* Under DOS */
512 sv_setnv(sv, (double)errno);
513 sv_setpv(sv, errno ? Strerror(errno) : "");
515 if (errno != errno_isOS2) {
516 int tmp = _syserrno();
517 if (tmp) /* 2nd call to _syserrno() makes it 0 */
520 sv_setnv(sv, (double)Perl_rc);
521 sv_setpv(sv, os2error(Perl_rc));
526 DWORD dwErr = GetLastError();
527 sv_setnv(sv, (double)dwErr);
533 PerlProc_GetSysMsg(sMsg, dwLen, dwErr);
534 sv_setpvn(sv, sMsg, dwLen);
535 PerlProc_FreeBuf(sMsg);
537 win32_str_os_error(sv, dwErr);
545 sv_setnv(sv, (double)errno);
546 sv_setpv(sv, errno ? Strerror(errno) : "");
550 SvNOK_on(sv); /* what a wonderful hack! */
552 case '\006': /* ^F */
553 sv_setiv(sv, (IV)PL_maxsysfd);
555 case '\010': /* ^H */
556 sv_setiv(sv, (IV)PL_hints);
558 case '\011': /* ^I */ /* NOT \t in EBCDIC */
560 sv_setpv(sv, PL_inplace);
562 sv_setsv(sv, &PL_sv_undef);
564 case '\017': /* ^O */
565 sv_setpv(sv, PL_osname);
567 case '\020': /* ^P */
568 sv_setiv(sv, (IV)PL_perldb);
570 case '\023': /* ^S */
573 if (PL_lex_state != LEX_NOTPARSING)
581 case '\024': /* ^T */
583 sv_setnv(sv, PL_basetime);
585 sv_setiv(sv, (IV)PL_basetime);
588 case '\027': /* ^W */
589 sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON));
591 case '1': case '2': case '3': case '4':
592 case '5': case '6': case '7': case '8': case '9': case '&':
593 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
597 * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj));
598 * XXX Does the new way break anything?
600 paren = atoi(mg->mg_ptr);
602 if (paren <= rx->nparens &&
603 (s1 = rx->startp[paren]) != -1 &&
604 (t1 = rx->endp[paren]) != -1)
612 was_tainted = PL_tainted;
617 PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx));
622 sv_setsv(sv,&PL_sv_undef);
625 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
626 paren = rx->lastparen;
630 sv_setsv(sv,&PL_sv_undef);
633 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
634 if ((s = rx->subbeg) && rx->startp[0] != -1) {
639 sv_setsv(sv,&PL_sv_undef);
642 if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
643 if (rx->subbeg && rx->endp[0] != -1) {
644 s = rx->subbeg + rx->endp[0];
645 i = rx->sublen - rx->endp[0];
649 sv_setsv(sv,&PL_sv_undef);
653 if (GvIO(PL_last_in_gv)) {
654 sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv)));
660 sv_setiv(sv, (IV)STATUS_CURRENT);
661 #ifdef COMPLEX_STATUS
662 LvTARGOFF(sv) = PL_statusvalue;
663 LvTARGLEN(sv) = PL_statusvalue_vms;
668 s = IoTOP_NAME(GvIOp(PL_defoutgv));
672 sv_setpv(sv,GvENAME(PL_defoutgv));
677 s = IoFMT_NAME(GvIOp(PL_defoutgv));
679 s = GvENAME(PL_defoutgv);
684 sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv)));
687 sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv)));
690 sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv)));
698 WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase));
701 sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 );
704 sv_setpvn(sv,PL_ofs,PL_ofslen);
707 sv_setpvn(sv,PL_ors,PL_orslen);
710 sv_setpv(sv,PL_ofmt);
714 sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno));
715 sv_setpv(sv, errno ? Strerror(errno) : "");
718 int saveerrno = errno;
719 sv_setnv(sv, (double)errno);
721 if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc));
724 sv_setpv(sv, errno ? Strerror(errno) : "");
728 SvNOK_on(sv); /* what a wonderful hack! */
731 sv_setiv(sv, (IV)PL_uid);
734 sv_setiv(sv, (IV)PL_euid);
737 sv_setiv(sv, (IV)PL_gid);
738 sv_setpvf(sv, "%Vd", (IV)PL_gid);
741 sv_setiv(sv, (IV)PL_egid);
742 sv_setpvf(sv, "%Vd", (IV)PL_egid);
746 Groups_t gary[NGROUPS];
747 i = getgroups(NGROUPS,gary);
749 sv_catpvf(sv, " %Vd", (IV)gary[i]);
752 SvIOK_on(sv); /* what a wonderful hack! */
760 sv_setsv(sv, thr->errsv);
762 #endif /* USE_THREADS */
768 magic_getuvar(SV *sv, MAGIC *mg)
770 struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
772 if (uf && uf->uf_val)
773 (*uf->uf_val)(uf->uf_index, sv);
778 magic_setenv(SV *sv, MAGIC *mg)
789 #ifdef DYNAMIC_ENV_FETCH
790 /* We just undefd an environment var. Is a replacement */
791 /* waiting in the wings? */
794 if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE)))
795 s = SvPV(*valp, len);
799 #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS)
800 /* And you'll never guess what the dog had */
801 /* in its mouth... */
803 MgTAINTEDDIR_off(mg);
805 if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) {
806 char pathbuf[256], eltbuf[256], *cp, *elt = s;
810 do { /* DCL$PATH may be a search list */
811 while (1) { /* as may dev portion of any element */
812 if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) {
813 if ( *(cp+1) == '.' || *(cp+1) == '-' ||
814 cando_by_name(S_IWUSR,0,elt) ) {
819 if ((cp = strchr(elt, ':')) != Nullch)
821 if (my_trnlnm(elt, eltbuf, j++))
827 } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf));
830 if (s && klen == 4 && strEQ(ptr,"PATH")) {
831 char *strend = s + len;
836 s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf,
839 if (i >= sizeof tmpbuf /* too long -- assume the worst */
841 || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) {
848 #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */
854 magic_clearenv(SV *sv, MAGIC *mg)
857 my_setenv(MgPV(mg,n_a),Nullch);
862 magic_set_all_env(SV *sv, MAGIC *mg)
865 die("Can't make list assignment to %%ENV on this system");
871 magic_clear_all_env(sv,mg);
872 hv_iterinit((HV*)sv);
873 while (entry = hv_iternext((HV*)sv)) {
875 my_setenv(hv_iterkey(entry, &keylen),
876 SvPV(hv_iterval((HV*)sv, entry), n_a));
884 magic_clear_all_env(SV *sv, MAGIC *mg)
887 die("Can't make list assignment to %%ENV on this system");
890 char *envv = GetEnvironmentStrings();
894 char *end = strchr(cur,'=');
895 if (end && end != cur) {
897 my_setenv(cur,Nullch);
899 cur = end + strlen(end+1)+2;
901 else if ((len = strlen(cur)))
904 FreeEnvironmentStrings(envv);
906 # ifndef PERL_USE_SAFE_PUTENV
909 if (environ == PL_origenviron)
910 environ = (char**)safesysmalloc(sizeof(char*));
912 for (i = 0; environ[i]; i++)
913 safesysfree(environ[i]);
914 # endif /* PERL_USE_SAFE_PUTENV */
924 magic_getsig(SV *sv, MAGIC *mg)
928 /* Are we fetching a signal entry? */
929 i = whichsig(MgPV(mg,n_a));
932 sv_setsv(sv,PL_psig_ptr[i]);
934 Sighandler_t sigstate = rsignal_state(i);
936 /* cache state so we don't fetch it again */
937 if(sigstate == SIG_IGN)
938 sv_setpv(sv,"IGNORE");
940 sv_setsv(sv,&PL_sv_undef);
941 PL_psig_ptr[i] = SvREFCNT_inc(sv);
948 magic_clearsig(SV *sv, MAGIC *mg)
952 /* Are we clearing a signal entry? */
953 i = whichsig(MgPV(mg,n_a));
956 SvREFCNT_dec(PL_psig_ptr[i]);
959 if(PL_psig_name[i]) {
960 SvREFCNT_dec(PL_psig_name[i]);
968 magic_setsig(SV *sv, MAGIC *mg)
978 if (strEQ(s,"__DIE__"))
980 else if (strEQ(s,"__WARN__"))
982 else if (strEQ(s,"__PARSE__"))
985 croak("No such hook: %s", s);
993 i = whichsig(s); /* ...no, a brick */
995 if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM"))
996 warner(WARN_SIGNAL, "No such signal: SIG%s", s);
999 SvREFCNT_dec(PL_psig_name[i]);
1000 SvREFCNT_dec(PL_psig_ptr[i]);
1001 PL_psig_ptr[i] = SvREFCNT_inc(sv);
1002 SvTEMP_off(sv); /* Make sure it doesn't go away on us */
1003 PL_psig_name[i] = newSVpvn(s, len);
1004 SvREADONLY_on(PL_psig_name[i]);
1006 if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) {
1008 (void)rsignal(i, PL_sighandlerp);
1010 *svp = SvREFCNT_inc(sv);
1013 s = SvPV_force(sv,len);
1014 if (strEQ(s,"IGNORE")) {
1016 (void)rsignal(i, SIG_IGN);
1020 else if (strEQ(s,"DEFAULT") || !*s) {
1022 (void)rsignal(i, SIG_DFL);
1028 * We should warn if HINT_STRICT_REFS, but without
1029 * access to a known hint bit in a known OP, we can't
1030 * tell whether HINT_STRICT_REFS is in force or not.
1032 if (!strchr(s,':') && !strchr(s,'\''))
1033 sv_insert(sv, 0, 0, "main::", 6);
1035 (void)rsignal(i, PL_sighandlerp);
1037 *svp = SvREFCNT_inc(sv);
1043 magic_setisa(SV *sv, MAGIC *mg)
1045 PL_sub_generation++;
1050 magic_setamagic(SV *sv, MAGIC *mg)
1052 /* HV_badAMAGIC_on(Sv_STASH(sv)); */
1053 PL_amagic_generation++;
1059 magic_getnkeys(SV *sv, MAGIC *mg)
1061 HV *hv = (HV*)LvTARG(sv);
1066 (void) hv_iterinit(hv);
1067 if (! SvTIED_mg((SV*)hv, 'P'))
1071 while (entry = hv_iternext(hv)) {
1077 sv_setiv(sv, (IV)i);
1082 magic_setnkeys(SV *sv, MAGIC *mg)
1085 hv_ksplit((HV*)LvTARG(sv), SvIV(sv));
1090 /* caller is responsible for stack switching/cleanup */
1092 magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val)
1098 PUSHs(SvTIED_obj(sv, mg));
1101 if (mg->mg_len >= 0)
1102 PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len)));
1103 else if (mg->mg_len == HEf_SVKEY)
1104 PUSHs((SV*)mg->mg_ptr);
1106 else if (mg->mg_type == 'p') {
1107 PUSHs(sv_2mortal(newSViv(mg->mg_len)));
1115 return perl_call_method(meth, flags);
1119 magic_methpack(SV *sv, MAGIC *mg, char *meth)
1125 PUSHSTACKi(PERLSI_MAGIC);
1127 if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) {
1128 sv_setsv(sv, *PL_stack_sp--);
1138 magic_getpack(SV *sv, MAGIC *mg)
1140 magic_methpack(sv,mg,"FETCH");
1142 mg->mg_flags |= MGf_GSKIP;
1147 magic_setpack(SV *sv, MAGIC *mg)
1151 PUSHSTACKi(PERLSI_MAGIC);
1152 magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv);
1159 magic_clearpack(SV *sv, MAGIC *mg)
1161 return magic_methpack(sv,mg,"DELETE");
1166 magic_sizepack(SV *sv, MAGIC *mg)
1173 PUSHSTACKi(PERLSI_MAGIC);
1174 if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) {
1175 sv = *PL_stack_sp--;
1176 retval = (U32) SvIV(sv)-1;
1184 int magic_wipepack(SV *sv, MAGIC *mg)
1189 PUSHSTACKi(PERLSI_MAGIC);
1191 XPUSHs(SvTIED_obj(sv, mg));
1193 perl_call_method("CLEAR", G_SCALAR|G_DISCARD);
1200 magic_nextpack(SV *sv, MAGIC *mg, SV *key)
1203 char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY";
1207 PUSHSTACKi(PERLSI_MAGIC);
1210 PUSHs(SvTIED_obj(sv, mg));
1215 if (perl_call_method(meth, G_SCALAR))
1216 sv_setsv(key, *PL_stack_sp--);
1225 magic_existspack(SV *sv, MAGIC *mg)
1227 return magic_methpack(sv,mg,"EXISTS");
1231 magic_setdbline(SV *sv, MAGIC *mg)
1242 svp = av_fetch(GvAV(gv),
1243 atoi(MgPV(mg,n_a)), FALSE);
1244 if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp)))
1247 warn("Can't break at that line\n");
1252 magic_getarylen(SV *sv, MAGIC *mg)
1255 sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase);
1260 magic_setarylen(SV *sv, MAGIC *mg)
1263 av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase);
1268 magic_getpos(SV *sv, MAGIC *mg)
1270 SV* lsv = LvTARG(sv);
1272 if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) {
1273 mg = mg_find(lsv, 'g');
1274 if (mg && mg->mg_len >= 0) {
1278 sv_pos_b2u(lsv, &i);
1279 sv_setiv(sv, i + PL_curcop->cop_arybase);
1288 magic_setpos(SV *sv, MAGIC *mg)
1290 SV* lsv = LvTARG(sv);
1298 if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv))
1299 mg = mg_find(lsv, 'g');
1303 sv_magic(lsv, (SV*)0, 'g', Nullch, 0);
1304 mg = mg_find(lsv, 'g');
1306 else if (!SvOK(sv)) {
1310 len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv);
1312 pos = SvIV(sv) - PL_curcop->cop_arybase;
1315 ulen = sv_len_utf8(lsv);
1332 sv_pos_u2b(lsv, &p, 0);
1337 mg->mg_flags &= ~MGf_MINMATCH;
1343 magic_getglob(SV *sv, MAGIC *mg)
1345 if (SvFAKE(sv)) { /* FAKE globs can get coerced */
1347 gv_efullname3(sv,((GV*)sv), "*");
1351 gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */
1356 magic_setglob(SV *sv, MAGIC *mg)
1365 if (*s == '*' && s[1])
1367 gv = gv_fetchpv(s,TRUE, SVt_PVGV);
1372 GvGP(sv) = gp_ref(GvGP(gv));
1377 magic_getsubstr(SV *sv, MAGIC *mg)
1380 SV *lsv = LvTARG(sv);
1381 char *tmps = SvPV(lsv,len);
1382 I32 offs = LvTARGOFF(sv);
1383 I32 rem = LvTARGLEN(sv);
1387 if (rem + offs > len)
1389 sv_setpvn(sv, tmps + offs, (STRLEN)rem);
1394 magic_setsubstr(SV *sv, MAGIC *mg)
1397 char *tmps = SvPV(sv,len);
1398 sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len);
1403 magic_gettaint(SV *sv, MAGIC *mg)
1406 TAINT_IF((mg->mg_len & 1) ||
1407 (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */
1412 magic_settaint(SV *sv, MAGIC *mg)
1415 if (PL_localizing) {
1416 if (PL_localizing == 1)
1421 else if (PL_tainted)
1429 magic_getvec(SV *sv, MAGIC *mg)
1431 SV *lsv = LvTARG(sv);
1433 unsigned long retnum;
1443 s = (unsigned char *) SvPV(lsv, lsvlen);
1444 offset = LvTARGOFF(sv);
1445 size = LvTARGLEN(sv);
1446 len = (offset + size + 7) / 8;
1448 /* Copied from pp_vec() */
1456 if (offset >= lsvlen)
1459 retnum = (unsigned long) s[offset] << 8;
1461 else if (size == 32) {
1462 if (offset >= lsvlen)
1464 else if (offset + 1 >= lsvlen)
1465 retnum = (unsigned long) s[offset] << 24;
1466 else if (offset + 2 >= lsvlen)
1467 retnum = ((unsigned long) s[offset] << 24) +
1468 ((unsigned long) s[offset + 1] << 16);
1470 retnum = ((unsigned long) s[offset] << 24) +
1471 ((unsigned long) s[offset + 1] << 16) +
1472 (s[offset + 2] << 8);
1477 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1482 else if (size == 16)
1483 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1484 else if (size == 32)
1485 retnum = ((unsigned long) s[offset] << 24) +
1486 ((unsigned long) s[offset + 1] << 16) +
1487 (s[offset + 2] << 8) + s[offset+3];
1490 sv_setuv(sv, (UV)retnum);
1495 magic_setvec(SV *sv, MAGIC *mg)
1497 do_vecset(sv); /* XXX slurp this routine */
1502 magic_getdefelem(SV *sv, MAGIC *mg)
1505 if (LvTARGLEN(sv)) {
1507 SV *ahv = LvTARG(sv);
1508 if (SvTYPE(ahv) == SVt_PVHV) {
1509 HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0);
1514 SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0);
1520 AV* av = (AV*)LvTARG(sv);
1521 if ((I32)LvTARGOFF(sv) <= AvFILL(av))
1522 targ = AvARRAY(av)[LvTARGOFF(sv)];
1524 if (targ && targ != &PL_sv_undef) {
1525 dTHR; /* just for SvREFCNT_dec */
1526 /* somebody else defined it for us */
1527 SvREFCNT_dec(LvTARG(sv));
1528 LvTARG(sv) = SvREFCNT_inc(targ);
1530 SvREFCNT_dec(mg->mg_obj);
1531 mg->mg_obj = Nullsv;
1532 mg->mg_flags &= ~MGf_REFCOUNTED;
1537 sv_setsv(sv, targ ? targ : &PL_sv_undef);
1542 magic_setdefelem(SV *sv, MAGIC *mg)
1547 sv_setsv(LvTARG(sv), sv);
1548 SvSETMAGIC(LvTARG(sv));
1554 vivify_defelem(SV *sv)
1556 dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/
1560 if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y')))
1563 SV *ahv = LvTARG(sv);
1565 if (SvTYPE(ahv) == SVt_PVHV) {
1566 HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0);
1571 SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0);
1575 if (!value || value == &PL_sv_undef)
1576 croak(PL_no_helem, SvPV(mg->mg_obj, n_a));
1579 AV* av = (AV*)LvTARG(sv);
1580 if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av))
1581 LvTARG(sv) = Nullsv; /* array can't be extended */
1583 SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE);
1584 if (!svp || (value = *svp) == &PL_sv_undef)
1585 croak(PL_no_aelem, (I32)LvTARGOFF(sv));
1588 (void)SvREFCNT_inc(value);
1589 SvREFCNT_dec(LvTARG(sv));
1592 SvREFCNT_dec(mg->mg_obj);
1593 mg->mg_obj = Nullsv;
1594 mg->mg_flags &= ~MGf_REFCOUNTED;
1598 magic_killbackrefs(SV *sv, MAGIC *mg)
1600 AV *av = (AV*)mg->mg_obj;
1601 SV **svp = AvARRAY(av);
1602 I32 i = AvFILLp(av);
1604 if (svp[i] && svp[i] != &PL_sv_undef) {
1605 if (!SvWEAKREF(svp[i]))
1606 croak("panic: magic_killbackrefs");
1607 /* XXX Should we check that it hasn't changed? */
1610 SvWEAKREF_off(svp[i]);
1611 svp[i] = &PL_sv_undef;
1619 magic_setmglob(SV *sv, MAGIC *mg)
1627 magic_setbm(SV *sv, MAGIC *mg)
1629 sv_unmagic(sv, 'B');
1635 magic_setfm(SV *sv, MAGIC *mg)
1637 sv_unmagic(sv, 'f');
1643 magic_setuvar(SV *sv, MAGIC *mg)
1645 struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
1647 if (uf && uf->uf_set)
1648 (*uf->uf_set)(uf->uf_index, sv);
1653 magic_freeregexp(SV *sv, MAGIC *mg)
1655 regexp *re = (regexp *)mg->mg_obj;
1660 #ifdef USE_LOCALE_COLLATE
1662 magic_setcollxfrm(SV *sv, MAGIC *mg)
1665 * RenE<eacute> Descartes said "I think not."
1666 * and vanished with a faint plop.
1669 Safefree(mg->mg_ptr);
1675 #endif /* USE_LOCALE_COLLATE */
1678 magic_set(SV *sv, MAGIC *mg)
1684 switch (*mg->mg_ptr) {
1685 case '\001': /* ^A */
1686 sv_setsv(PL_bodytarget, sv);
1688 case '\002': /* ^B */
1689 if ( ! (PL_dowarn & G_WARN_ALL_MASK)) {
1690 if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize))
1691 PL_compiling.cop_warnings = WARN_ALL;
1692 else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize))
1693 PL_compiling.cop_warnings = WARN_NONE;
1695 if (PL_compiling.cop_warnings != WARN_NONE &&
1696 PL_compiling.cop_warnings != WARN_ALL)
1697 sv_setsv(PL_compiling.cop_warnings, sv);
1699 PL_compiling.cop_warnings = newSVsv(sv) ;
1704 case '\003': /* ^C */
1705 PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1708 case '\004': /* ^D */
1709 PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000;
1710 DEBUG_x(dump_all());
1712 case '\005': /* ^E */
1714 set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1717 SetLastError( SvIV(sv) );
1719 /* will anyone ever use this? */
1720 SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4);
1724 case '\006': /* ^F */
1725 PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1727 case '\010': /* ^H */
1728 PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1730 case '\011': /* ^I */ /* NOT \t in EBCDIC */
1732 Safefree(PL_inplace);
1734 PL_inplace = savepv(SvPV(sv,len));
1736 PL_inplace = Nullch;
1738 case '\017': /* ^O */
1740 Safefree(PL_osname);
1742 PL_osname = savepv(SvPV(sv,len));
1746 case '\020': /* ^P */
1747 PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1749 case '\024': /* ^T */
1751 PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv));
1753 PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1756 case '\027': /* ^W */
1757 if ( ! (PL_dowarn & G_WARN_ALL_MASK)) {
1758 i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1759 PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ;
1763 if (PL_localizing) {
1764 if (PL_localizing == 1)
1765 save_sptr((SV**)&PL_last_in_gv);
1767 else if (SvOK(sv) && GvIO(PL_last_in_gv))
1768 IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv);
1771 Safefree(IoTOP_NAME(GvIOp(PL_defoutgv)));
1772 IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len));
1773 IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
1776 Safefree(IoFMT_NAME(GvIOp(PL_defoutgv)));
1777 IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len));
1778 IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
1781 IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1784 IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1785 if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L)
1786 IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L;
1789 IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1793 IO *io = GvIOp(PL_defoutgv);
1794 if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0)
1795 IoFLAGS(io) &= ~IOf_FLUSH;
1797 if (!(IoFLAGS(io) & IOf_FLUSH)) {
1798 PerlIO *ofp = IoOFP(io);
1800 (void)PerlIO_flush(ofp);
1801 IoFLAGS(io) |= IOf_FLUSH;
1807 i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1808 PL_multiline = (i != 0);
1811 SvREFCNT_dec(PL_nrs);
1812 PL_nrs = newSVsv(sv);
1813 SvREFCNT_dec(PL_rs);
1814 PL_rs = SvREFCNT_inc(PL_nrs);
1819 if (SvOK(sv) || SvGMAGICAL(sv))
1820 PL_ors = savepv(SvPV(sv,PL_orslen));
1829 PL_ofs = savepv(SvPV(sv, PL_ofslen));
1834 PL_ofmt = savepv(SvPV(sv,len));
1837 PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1840 #ifdef COMPLEX_STATUS
1841 if (PL_localizing == 2) {
1842 PL_statusvalue = LvTARGOFF(sv);
1843 PL_statusvalue_vms = LvTARGLEN(sv);
1847 #ifdef VMSISH_STATUS
1849 STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)));
1852 STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
1855 SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0,
1856 (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno);
1859 PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1860 if (PL_delaymagic) {
1861 PL_delaymagic |= DM_RUID;
1862 break; /* don't do magic till later */
1865 (void)setruid((Uid_t)PL_uid);
1868 (void)setreuid((Uid_t)PL_uid, (Uid_t)-1);
1870 #ifdef HAS_SETRESUID
1871 (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1);
1873 if (PL_uid == PL_euid) /* special case $< = $> */
1874 (void)PerlProc_setuid(PL_uid);
1876 PL_uid = (I32)PerlProc_getuid();
1877 croak("setruid() not implemented");
1882 PL_uid = (I32)PerlProc_getuid();
1883 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
1886 PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1887 if (PL_delaymagic) {
1888 PL_delaymagic |= DM_EUID;
1889 break; /* don't do magic till later */
1892 (void)seteuid((Uid_t)PL_euid);
1895 (void)setreuid((Uid_t)-1, (Uid_t)PL_euid);
1897 #ifdef HAS_SETRESUID
1898 (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1);
1900 if (PL_euid == PL_uid) /* special case $> = $< */
1901 PerlProc_setuid(PL_euid);
1903 PL_euid = (I32)PerlProc_geteuid();
1904 croak("seteuid() not implemented");
1909 PL_euid = (I32)PerlProc_geteuid();
1910 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
1913 PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1914 if (PL_delaymagic) {
1915 PL_delaymagic |= DM_RGID;
1916 break; /* don't do magic till later */
1919 (void)setrgid((Gid_t)PL_gid);
1922 (void)setregid((Gid_t)PL_gid, (Gid_t)-1);
1924 #ifdef HAS_SETRESGID
1925 (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1);
1927 if (PL_gid == PL_egid) /* special case $( = $) */
1928 (void)PerlProc_setgid(PL_gid);
1930 PL_gid = (I32)PerlProc_getgid();
1931 croak("setrgid() not implemented");
1936 PL_gid = (I32)PerlProc_getgid();
1937 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
1940 #ifdef HAS_SETGROUPS
1942 char *p = SvPV(sv, len);
1943 Groups_t gary[NGROUPS];
1945 SET_NUMERIC_STANDARD();
1948 PL_egid = I_V(atof(p));
1949 for (i = 0; i < NGROUPS; ++i) {
1950 while (*p && !isSPACE(*p))
1956 gary[i] = I_V(atof(p));
1959 (void)setgroups(i, gary);
1961 #else /* HAS_SETGROUPS */
1962 PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
1963 #endif /* HAS_SETGROUPS */
1964 if (PL_delaymagic) {
1965 PL_delaymagic |= DM_EGID;
1966 break; /* don't do magic till later */
1969 (void)setegid((Gid_t)PL_egid);
1972 (void)setregid((Gid_t)-1, (Gid_t)PL_egid);
1974 #ifdef HAS_SETRESGID
1975 (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1);
1977 if (PL_egid == PL_gid) /* special case $) = $( */
1978 (void)PerlProc_setgid(PL_egid);
1980 PL_egid = (I32)PerlProc_getegid();
1981 croak("setegid() not implemented");
1986 PL_egid = (I32)PerlProc_getegid();
1987 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
1990 PL_chopset = SvPV_force(sv,len);
1996 /* See if all the arguments are contiguous in memory */
1997 for (i = 1; i < PL_origargc; i++) {
1998 if (PL_origargv[i] == s + 1
2000 || PL_origargv[i] == s + 2
2005 s += strlen(s); /* this one is ok too */
2010 /* can grab env area too? */
2011 if (PL_origenviron && (PL_origenviron[0] == s + 1
2013 || (PL_origenviron[0] == s + 9 && (s += 8))
2016 my_setenv("NoNe SuCh", Nullch);
2017 /* force copy of environment */
2018 for (i = 0; PL_origenviron[i]; i++)
2019 if (PL_origenviron[i] == s + 1) {
2026 PL_origalen = s - PL_origargv[0];
2028 s = SvPV_force(sv,len);
2030 if (i >= PL_origalen) {
2032 /* don't allow system to limit $0 seen by script */
2033 /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */
2034 Copy(s, PL_origargv[0], i, char);
2035 s = PL_origargv[0]+i;
2039 Copy(s, PL_origargv[0], i, char);
2040 s = PL_origargv[0]+i;
2042 while (++i < PL_origalen)
2044 s = PL_origargv[0]+i;
2045 for (i = 1; i < PL_origargc; i++)
2046 PL_origargv[i] = Nullch;
2051 sv_setsv(thr->errsv, sv);
2053 #endif /* USE_THREADS */
2060 magic_mutexfree(SV *sv, MAGIC *mg)
2063 DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n",
2064 (unsigned long)thr, (unsigned long)sv);)
2066 croak("panic: magic_mutexfree");
2067 MUTEX_DESTROY(MgMUTEXP(mg));
2068 COND_DESTROY(MgCONDP(mg));
2071 #endif /* USE_THREADS */
2076 register char **sigv;
2078 for (sigv = PL_sig_name+1; *sigv; sigv++)
2079 if (strEQ(sig,*sigv))
2080 return PL_sig_num[sigv - PL_sig_name];
2082 if (strEQ(sig,"CHLD"))
2086 if (strEQ(sig,"CLD"))
2095 unwind_handler_stack(void *p)
2098 U32 flags = *(U32*)p;
2101 PL_savestack_ix -= 5; /* Unprotect save in progress. */
2102 /* cxstack_ix-- Not needed, die already unwound it. */
2104 SvREFCNT_dec(sig_sv);
2113 SV *sv, *tSv = PL_Sv;
2117 I32 o_save_i = PL_savestack_ix, type;
2120 if (PL_savestack_ix + 15 <= PL_savestack_max)
2122 if (PL_markstack_ptr < PL_markstack_max - 2)
2124 if (PL_retstack_ix < PL_retstack_max - 2)
2126 if (PL_scopestack_ix < PL_scopestack_max - 3)
2129 if (!PL_psig_ptr[sig])
2130 die("Signal SIG%s received, but no signal handler set.\n",
2133 /* Max number of items pushed there is 3*n or 4. We cannot fix
2134 infinity, so we fix 4 (in fact 5): */
2136 PL_savestack_ix += 5; /* Protect save in progress. */
2137 o_save_i = PL_savestack_ix;
2138 SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags);
2141 PL_markstack_ptr++; /* Protect mark. */
2144 PL_retstack[PL_retstack_ix] = NULL;
2147 PL_scopestack_ix += 1;
2148 /* sv_2cv is too complicated, try a simpler variant first: */
2149 if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig]))
2150 || SvTYPE(cv) != SVt_PVCV)
2151 cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE);
2153 if (!cv || !CvROOT(cv)) {
2154 if (ckWARN(WARN_SIGNAL))
2155 warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n",
2156 PL_sig_name[sig], (gv ? GvENAME(gv)
2163 if(PL_psig_name[sig]) {
2164 sv = SvREFCNT_inc(PL_psig_name[sig]);
2168 sv = sv_newmortal();
2169 sv_setpv(sv,PL_sig_name[sig]);
2172 PUSHSTACKi(PERLSI_SIGNAL);
2177 perl_call_sv((SV*)cv, G_DISCARD);
2182 PL_savestack_ix -= 8; /* Unprotect save in progress. */
2188 PL_scopestack_ix -= 1;
2191 PL_op = myop; /* Apparently not needed... */
2193 PL_Sv = tSv; /* Restore global temporaries. */