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-rw-r--r--contrib/perl5/mg.c2284
1 files changed, 0 insertions, 2284 deletions
diff --git a/contrib/perl5/mg.c b/contrib/perl5/mg.c
deleted file mode 100644
index e1b727a0a..0000000
--- a/contrib/perl5/mg.c
+++ /dev/null
@@ -1,2284 +0,0 @@
-/* mg.c
- *
- * Copyright (c) 1991-2001, Larry Wall
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Artistic License, as specified in the README file.
- *
- */
-
-/*
- * "Sam sat on the ground and put his head in his hands. 'I wish I had never
- * come here, and I don't want to see no more magic,' he said, and fell silent."
- */
-
-#include "EXTERN.h"
-#define PERL_IN_MG_C
-#include "perl.h"
-
-#if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS)
-# ifndef NGROUPS
-# define NGROUPS 32
-# endif
-#endif
-
-static void restore_magic(pTHXo_ void *p);
-static void unwind_handler_stack(pTHXo_ void *p);
-
-/*
- * Use the "DESTRUCTOR" scope cleanup to reinstate magic.
- */
-
-struct magic_state {
- SV* mgs_sv;
- U32 mgs_flags;
- I32 mgs_ss_ix;
-};
-/* MGS is typedef'ed to struct magic_state in perl.h */
-
-STATIC void
-S_save_magic(pTHX_ I32 mgs_ix, SV *sv)
-{
- MGS* mgs;
- assert(SvMAGICAL(sv));
-
- SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix);
-
- mgs = SSPTR(mgs_ix, MGS*);
- mgs->mgs_sv = sv;
- mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv);
- mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */
-
- SvMAGICAL_off(sv);
- SvREADONLY_off(sv);
- SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
-}
-
-/*
-=for apidoc mg_magical
-
-Turns on the magical status of an SV. See C<sv_magic>.
-
-=cut
-*/
-
-void
-Perl_mg_magical(pTHX_ SV *sv)
-{
- MAGIC* mg;
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
- MGVTBL* vtbl = mg->mg_virtual;
- if (vtbl) {
- if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP))
- SvGMAGICAL_on(sv);
- if (vtbl->svt_set)
- SvSMAGICAL_on(sv);
- if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear)
- SvRMAGICAL_on(sv);
- }
- }
-}
-
-/*
-=for apidoc mg_get
-
-Do magic after a value is retrieved from the SV. See C<sv_magic>.
-
-=cut
-*/
-
-int
-Perl_mg_get(pTHX_ SV *sv)
-{
- I32 mgs_ix;
- MAGIC* mg;
- MAGIC** mgp;
- int mgp_valid = 0;
-
- mgs_ix = SSNEW(sizeof(MGS));
- save_magic(mgs_ix, sv);
-
- mgp = &SvMAGIC(sv);
- while ((mg = *mgp) != 0) {
- MGVTBL* vtbl = mg->mg_virtual;
- if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) {
- CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg);
- /* Ignore this magic if it's been deleted */
- if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) &&
- (mg->mg_flags & MGf_GSKIP))
- (SSPTR(mgs_ix, MGS*))->mgs_flags = 0;
- }
- /* Advance to next magic (complicated by possible deletion) */
- if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) {
- mgp = &mg->mg_moremagic;
- mgp_valid = 1;
- }
- else
- mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */
- }
-
- restore_magic(aTHXo_ (void*)mgs_ix);
- return 0;
-}
-
-/*
-=for apidoc mg_set
-
-Do magic after a value is assigned to the SV. See C<sv_magic>.
-
-=cut
-*/
-
-int
-Perl_mg_set(pTHX_ SV *sv)
-{
- I32 mgs_ix;
- MAGIC* mg;
- MAGIC* nextmg;
-
- mgs_ix = SSNEW(sizeof(MGS));
- save_magic(mgs_ix, sv);
-
- for (mg = SvMAGIC(sv); mg; mg = nextmg) {
- MGVTBL* vtbl = mg->mg_virtual;
- nextmg = mg->mg_moremagic; /* it may delete itself */
- if (mg->mg_flags & MGf_GSKIP) {
- mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */
- (SSPTR(mgs_ix, MGS*))->mgs_flags = 0;
- }
- if (vtbl && vtbl->svt_set)
- CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg);
- }
-
- restore_magic(aTHXo_ (void*)mgs_ix);
- return 0;
-}
-
-/*
-=for apidoc mg_length
-
-Report on the SV's length. See C<sv_magic>.
-
-=cut
-*/
-
-U32
-Perl_mg_length(pTHX_ SV *sv)
-{
- MAGIC* mg;
- char *junk;
- STRLEN len;
-
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
- MGVTBL* vtbl = mg->mg_virtual;
- if (vtbl && vtbl->svt_len) {
- I32 mgs_ix;
-
- mgs_ix = SSNEW(sizeof(MGS));
- save_magic(mgs_ix, sv);
- /* omit MGf_GSKIP -- not changed here */
- len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg);
- restore_magic(aTHXo_ (void*)mgs_ix);
- return len;
- }
- }
-
- junk = SvPV(sv, len);
- return len;
-}
-
-I32
-Perl_mg_size(pTHX_ SV *sv)
-{
- MAGIC* mg;
- I32 len;
-
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
- MGVTBL* vtbl = mg->mg_virtual;
- if (vtbl && vtbl->svt_len) {
- I32 mgs_ix;
-
- mgs_ix = SSNEW(sizeof(MGS));
- save_magic(mgs_ix, sv);
- /* omit MGf_GSKIP -- not changed here */
- len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg);
- restore_magic(aTHXo_ (void*)mgs_ix);
- return len;
- }
- }
-
- switch(SvTYPE(sv)) {
- case SVt_PVAV:
- len = AvFILLp((AV *) sv); /* Fallback to non-tied array */
- return len;
- case SVt_PVHV:
- /* FIXME */
- default:
- Perl_croak(aTHX_ "Size magic not implemented");
- break;
- }
- return 0;
-}
-
-/*
-=for apidoc mg_clear
-
-Clear something magical that the SV represents. See C<sv_magic>.
-
-=cut
-*/
-
-int
-Perl_mg_clear(pTHX_ SV *sv)
-{
- I32 mgs_ix;
- MAGIC* mg;
-
- mgs_ix = SSNEW(sizeof(MGS));
- save_magic(mgs_ix, sv);
-
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
- MGVTBL* vtbl = mg->mg_virtual;
- /* omit GSKIP -- never set here */
-
- if (vtbl && vtbl->svt_clear)
- CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg);
- }
-
- restore_magic(aTHXo_ (void*)mgs_ix);
- return 0;
-}
-
-/*
-=for apidoc mg_find
-
-Finds the magic pointer for type matching the SV. See C<sv_magic>.
-
-=cut
-*/
-
-MAGIC*
-Perl_mg_find(pTHX_ SV *sv, int type)
-{
- MAGIC* mg;
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
- if (mg->mg_type == type)
- return mg;
- }
- return 0;
-}
-
-/*
-=for apidoc mg_copy
-
-Copies the magic from one SV to another. See C<sv_magic>.
-
-=cut
-*/
-
-int
-Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen)
-{
- int count = 0;
- MAGIC* mg;
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
- if (isUPPER(mg->mg_type)) {
- sv_magic(nsv,
- mg->mg_type == 'P' ? SvTIED_obj(sv, mg) :
- (mg->mg_type == 'D' && mg->mg_obj) ? sv : mg->mg_obj,
- toLOWER(mg->mg_type), key, klen);
- count++;
- }
- }
- return count;
-}
-
-/*
-=for apidoc mg_free
-
-Free any magic storage used by the SV. See C<sv_magic>.
-
-=cut
-*/
-
-int
-Perl_mg_free(pTHX_ SV *sv)
-{
- MAGIC* mg;
- MAGIC* moremagic;
- for (mg = SvMAGIC(sv); mg; mg = moremagic) {
- MGVTBL* vtbl = mg->mg_virtual;
- moremagic = mg->mg_moremagic;
- if (vtbl && vtbl->svt_free)
- CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg);
- if (mg->mg_ptr && mg->mg_type != 'g')
- if (mg->mg_len >= 0)
- Safefree(mg->mg_ptr);
- else if (mg->mg_len == HEf_SVKEY)
- SvREFCNT_dec((SV*)mg->mg_ptr);
- if (mg->mg_flags & MGf_REFCOUNTED)
- SvREFCNT_dec(mg->mg_obj);
- Safefree(mg);
- }
- SvMAGIC(sv) = 0;
- return 0;
-}
-
-#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
-#include <signal.h>
-#endif
-
-U32
-Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg)
-{
- register REGEXP *rx;
-
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- if (mg->mg_obj) /* @+ */
- return rx->nparens;
- else /* @- */
- return rx->lastparen;
- }
-
- return (U32)-1;
-}
-
-int
-Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg)
-{
- register I32 paren;
- register I32 s;
- register I32 i;
- register REGEXP *rx;
- I32 t;
-
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- paren = mg->mg_len;
- if (paren < 0)
- return 0;
- if (paren <= rx->nparens &&
- (s = rx->startp[paren]) != -1 &&
- (t = rx->endp[paren]) != -1)
- {
- if (mg->mg_obj) /* @+ */
- i = t;
- else /* @- */
- i = s;
- sv_setiv(sv,i);
- }
- }
- return 0;
-}
-
-int
-Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg)
-{
- Perl_croak(aTHX_ PL_no_modify);
- /* NOT REACHED */
- return 0;
-}
-
-U32
-Perl_magic_len(pTHX_ SV *sv, MAGIC *mg)
-{
- register I32 paren;
- register I32 i;
- register REGEXP *rx;
- I32 s1, t1;
-
- switch (*mg->mg_ptr) {
- case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9': case '&':
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
-
- paren = atoi(mg->mg_ptr);
- getparen:
- if (paren <= rx->nparens &&
- (s1 = rx->startp[paren]) != -1 &&
- (t1 = rx->endp[paren]) != -1)
- {
- i = t1 - s1;
- getlen:
- if (i > 0 && (PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) {
- char *s = rx->subbeg + s1;
- char *send = rx->subbeg + t1;
- i = 0;
- while (s < send) {
- s += UTF8SKIP(s);
- i++;
- }
- }
- if (i >= 0)
- return i;
- }
- }
- return 0;
- case '+':
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- paren = rx->lastparen;
- if (paren)
- goto getparen;
- }
- return 0;
- case '`':
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- if (rx->startp[0] != -1) {
- i = rx->startp[0];
- if (i > 0) {
- s1 = 0;
- t1 = i;
- goto getlen;
- }
- }
- }
- return 0;
- case '\'':
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- if (rx->endp[0] != -1) {
- i = rx->sublen - rx->endp[0];
- if (i > 0) {
- s1 = rx->endp[0];
- t1 = rx->sublen;
- goto getlen;
- }
- }
- }
- return 0;
- case ',':
- return (STRLEN)PL_ofslen;
- case '\\':
- return (STRLEN)PL_orslen;
- }
- magic_get(sv,mg);
- if (!SvPOK(sv) && SvNIOK(sv)) {
- STRLEN n_a;
- sv_2pv(sv, &n_a);
- }
- if (SvPOK(sv))
- return SvCUR(sv);
- return 0;
-}
-
-int
-Perl_magic_get(pTHX_ SV *sv, MAGIC *mg)
-{
- register I32 paren;
- register char *s;
- register I32 i;
- register REGEXP *rx;
-
- switch (*mg->mg_ptr) {
- case '\001': /* ^A */
- sv_setsv(sv, PL_bodytarget);
- break;
- case '\003': /* ^C */
- sv_setiv(sv, (IV)PL_minus_c);
- break;
-
- case '\004': /* ^D */
- sv_setiv(sv, (IV)(PL_debug & 32767));
-#if defined(YYDEBUG) && defined(DEBUGGING)
- PL_yydebug = (PL_debug & 1);
-#endif
- break;
- case '\005': /* ^E */
-#ifdef MACOS_TRADITIONAL
- {
- char msg[256];
-
- sv_setnv(sv,(double)gMacPerl_OSErr);
- sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : "");
- }
-#else
-#ifdef VMS
- {
-# include <descrip.h>
-# include <starlet.h>
- char msg[255];
- $DESCRIPTOR(msgdsc,msg);
- sv_setnv(sv,(NV) vaxc$errno);
- if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1)
- sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length);
- else
- sv_setpv(sv,"");
- }
-#else
-#ifdef OS2
- if (!(_emx_env & 0x200)) { /* Under DOS */
- sv_setnv(sv, (NV)errno);
- sv_setpv(sv, errno ? Strerror(errno) : "");
- } else {
- if (errno != errno_isOS2) {
- int tmp = _syserrno();
- if (tmp) /* 2nd call to _syserrno() makes it 0 */
- Perl_rc = tmp;
- }
- sv_setnv(sv, (NV)Perl_rc);
- sv_setpv(sv, os2error(Perl_rc));
- }
-#else
-#ifdef WIN32
- {
- DWORD dwErr = GetLastError();
- sv_setnv(sv, (NV)dwErr);
- if (dwErr)
- {
- PerlProc_GetOSError(sv, dwErr);
- }
- else
- sv_setpv(sv, "");
- SetLastError(dwErr);
- }
-#else
- sv_setnv(sv, (NV)errno);
- sv_setpv(sv, errno ? Strerror(errno) : "");
-#endif
-#endif
-#endif
-#endif
- SvNOK_on(sv); /* what a wonderful hack! */
- break;
- case '\006': /* ^F */
- sv_setiv(sv, (IV)PL_maxsysfd);
- break;
- case '\010': /* ^H */
- sv_setiv(sv, (IV)PL_hints);
- break;
- case '\011': /* ^I */ /* NOT \t in EBCDIC */
- if (PL_inplace)
- sv_setpv(sv, PL_inplace);
- else
- sv_setsv(sv, &PL_sv_undef);
- break;
- case '\017': /* ^O */
- sv_setpv(sv, PL_osname);
- break;
- case '\020': /* ^P */
- sv_setiv(sv, (IV)PL_perldb);
- break;
- case '\023': /* ^S */
- {
- if (PL_lex_state != LEX_NOTPARSING)
- (void)SvOK_off(sv);
- else if (PL_in_eval)
- sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE));
- }
- break;
- case '\024': /* ^T */
-#ifdef BIG_TIME
- sv_setnv(sv, PL_basetime);
-#else
- sv_setiv(sv, (IV)PL_basetime);
-#endif
- break;
- case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */
- if (*(mg->mg_ptr+1) == '\0')
- sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE));
- else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) {
- if (PL_compiling.cop_warnings == pWARN_NONE ||
- PL_compiling.cop_warnings == pWARN_STD)
- {
- sv_setpvn(sv, WARN_NONEstring, WARNsize) ;
- }
- else if (PL_compiling.cop_warnings == pWARN_ALL) {
- sv_setpvn(sv, WARN_ALLstring, WARNsize) ;
- }
- else {
- sv_setsv(sv, PL_compiling.cop_warnings);
- }
- SvPOK_only(sv);
- }
- else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS"))
- sv_setiv(sv, (IV)PL_widesyscalls);
- break;
- case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9': case '&':
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- I32 s1, t1;
-
- /*
- * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj));
- * XXX Does the new way break anything?
- */
- paren = atoi(mg->mg_ptr);
- getparen:
- if (paren <= rx->nparens &&
- (s1 = rx->startp[paren]) != -1 &&
- (t1 = rx->endp[paren]) != -1)
- {
- i = t1 - s1;
- s = rx->subbeg + s1;
- if (!rx->subbeg)
- break;
-
- getrx:
- if (i >= 0) {
- bool was_tainted;
- if (PL_tainting) {
- was_tainted = PL_tainted;
- PL_tainted = FALSE;
- }
- sv_setpvn(sv, s, i);
- if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE)
- SvUTF8_on(sv);
- else
- SvUTF8_off(sv);
- if (PL_tainting)
- PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx));
- break;
- }
- }
- }
- sv_setsv(sv,&PL_sv_undef);
- break;
- case '+':
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- paren = rx->lastparen;
- if (paren)
- goto getparen;
- }
- sv_setsv(sv,&PL_sv_undef);
- break;
- case '`':
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- if ((s = rx->subbeg) && rx->startp[0] != -1) {
- i = rx->startp[0];
- goto getrx;
- }
- }
- sv_setsv(sv,&PL_sv_undef);
- break;
- case '\'':
- if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
- if (rx->subbeg && rx->endp[0] != -1) {
- s = rx->subbeg + rx->endp[0];
- i = rx->sublen - rx->endp[0];
- goto getrx;
- }
- }
- sv_setsv(sv,&PL_sv_undef);
- break;
- case '.':
-#ifndef lint
- if (GvIO(PL_last_in_gv)) {
- sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv)));
- }
-#endif
- break;
- case '?':
- {
- sv_setiv(sv, (IV)STATUS_CURRENT);
-#ifdef COMPLEX_STATUS
- LvTARGOFF(sv) = PL_statusvalue;
- LvTARGLEN(sv) = PL_statusvalue_vms;
-#endif
- }
- break;
- case '^':
- s = IoTOP_NAME(GvIOp(PL_defoutgv));
- if (s)
- sv_setpv(sv,s);
- else {
- sv_setpv(sv,GvENAME(PL_defoutgv));
- sv_catpv(sv,"_TOP");
- }
- break;
- case '~':
- s = IoFMT_NAME(GvIOp(PL_defoutgv));
- if (!s)
- s = GvENAME(PL_defoutgv);
- sv_setpv(sv,s);
- break;
-#ifndef lint
- case '=':
- sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv)));
- break;
- case '-':
- sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv)));
- break;
- case '%':
- sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv)));
- break;
-#endif
- case ':':
- break;
- case '/':
- break;
- case '[':
- WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase));
- break;
- case '|':
- sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 );
- break;
- case ',':
- sv_setpvn(sv,PL_ofs,PL_ofslen);
- break;
- case '\\':
- sv_setpvn(sv,PL_ors,PL_orslen);
- break;
- case '#':
- sv_setpv(sv,PL_ofmt);
- break;
- case '!':
-#ifdef VMS
- sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno));
- sv_setpv(sv, errno ? Strerror(errno) : "");
-#else
- {
- int saveerrno = errno;
- sv_setnv(sv, (NV)errno);
-#ifdef OS2
- if (errno == errno_isOS2 || errno == errno_isOS2_set)
- sv_setpv(sv, os2error(Perl_rc));
- else
-#endif
- sv_setpv(sv, errno ? Strerror(errno) : "");
- errno = saveerrno;
- }
-#endif
- SvNOK_on(sv); /* what a wonderful hack! */
- break;
- case '<':
- sv_setiv(sv, (IV)PL_uid);
- break;
- case '>':
- sv_setiv(sv, (IV)PL_euid);
- break;
- case '(':
- sv_setiv(sv, (IV)PL_gid);
-#ifdef HAS_GETGROUPS
- Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid);
-#endif
- goto add_groups;
- case ')':
- sv_setiv(sv, (IV)PL_egid);
-#ifdef HAS_GETGROUPS
- Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid);
-#endif
- add_groups:
-#ifdef HAS_GETGROUPS
- {
- Groups_t gary[NGROUPS];
- i = getgroups(NGROUPS,gary);
- while (--i >= 0)
- Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]);
- }
-#endif
- (void)SvIOK_on(sv); /* what a wonderful hack! */
- break;
- case '*':
- break;
-#ifndef MACOS_TRADITIONAL
- case '0':
- break;
-#endif
-#ifdef USE_THREADS
- case '@':
- sv_setsv(sv, thr->errsv);
- break;
-#endif /* USE_THREADS */
- }
- return 0;
-}
-
-int
-Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg)
-{
- struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
-
- if (uf && uf->uf_val)
- (*uf->uf_val)(uf->uf_index, sv);
- return 0;
-}
-
-int
-Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg)
-{
- register char *s;
- char *ptr;
- STRLEN len, klen;
- I32 i;
-
- s = SvPV(sv,len);
- ptr = MgPV(mg,klen);
- my_setenv(ptr, s);
-
-#ifdef DYNAMIC_ENV_FETCH
- /* We just undefd an environment var. Is a replacement */
- /* waiting in the wings? */
- if (!len) {
- SV **valp;
- if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE)))
- s = SvPV(*valp, len);
- }
-#endif
-
-#if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS)
- /* And you'll never guess what the dog had */
- /* in its mouth... */
- if (PL_tainting) {
- MgTAINTEDDIR_off(mg);
-#ifdef VMS
- if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) {
- char pathbuf[256], eltbuf[256], *cp, *elt = s;
- struct stat sbuf;
- int i = 0, j = 0;
-
- do { /* DCL$PATH may be a search list */
- while (1) { /* as may dev portion of any element */
- if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) {
- if ( *(cp+1) == '.' || *(cp+1) == '-' ||
- cando_by_name(S_IWUSR,0,elt) ) {
- MgTAINTEDDIR_on(mg);
- return 0;
- }
- }
- if ((cp = strchr(elt, ':')) != Nullch)
- *cp = '\0';
- if (my_trnlnm(elt, eltbuf, j++))
- elt = eltbuf;
- else
- break;
- }
- j = 0;
- } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf));
- }
-#endif /* VMS */
- if (s && klen == 4 && strEQ(ptr,"PATH")) {
- char *strend = s + len;
-
- while (s < strend) {
- char tmpbuf[256];
- struct stat st;
- s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf,
- s, strend, ':', &i);
- s++;
- if (i >= sizeof tmpbuf /* too long -- assume the worst */
- || *tmpbuf != '/'
- || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) {
- MgTAINTEDDIR_on(mg);
- return 0;
- }
- }
- }
- }
-#endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */
-
- return 0;
-}
-
-int
-Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg)
-{
- STRLEN n_a;
- my_setenv(MgPV(mg,n_a),Nullch);
- return 0;
-}
-
-int
-Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg)
-{
-#if defined(VMS)
- Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system");
-#else
- if (PL_localizing) {
- HE* entry;
- STRLEN n_a;
- magic_clear_all_env(sv,mg);
- hv_iterinit((HV*)sv);
- while ((entry = hv_iternext((HV*)sv))) {
- I32 keylen;
- my_setenv(hv_iterkey(entry, &keylen),
- SvPV(hv_iterval((HV*)sv, entry), n_a));
- }
- }
-#endif
- return 0;
-}
-
-int
-Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg)
-{
-#if defined(VMS) || defined(EPOC)
- Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system");
-#else
-# ifdef PERL_IMPLICIT_SYS
- PerlEnv_clearenv();
-# else
-# ifdef WIN32
- char *envv = GetEnvironmentStrings();
- char *cur = envv;
- STRLEN len;
- while (*cur) {
- char *end = strchr(cur,'=');
- if (end && end != cur) {
- *end = '\0';
- my_setenv(cur,Nullch);
- *end = '=';
- cur = end + strlen(end+1)+2;
- }
- else if ((len = strlen(cur)))
- cur += len+1;
- }
- FreeEnvironmentStrings(envv);
-# else
-#if !defined(MACOS_TRADITIONAL)
-# ifndef PERL_USE_SAFE_PUTENV
- I32 i;
-
- if (environ == PL_origenviron)
- environ = (char**)safesysmalloc(sizeof(char*));
- else
- for (i = 0; environ[i]; i++)
- safesysfree(environ[i]);
-# endif /* PERL_USE_SAFE_PUTENV */
-
- environ[0] = Nullch;
-
-#endif /* !defined(MACOS_TRADITIONAL) */
-# endif /* WIN32 */
-# endif /* PERL_IMPLICIT_SYS */
-#endif /* VMS */
- return 0;
-}
-
-int
-Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg)
-{
- I32 i;
- STRLEN n_a;
- /* Are we fetching a signal entry? */
- i = whichsig(MgPV(mg,n_a));
- if (i) {
- if(PL_psig_ptr[i])
- sv_setsv(sv,PL_psig_ptr[i]);
- else {
- Sighandler_t sigstate = rsignal_state(i);
-
- /* cache state so we don't fetch it again */
- if(sigstate == SIG_IGN)
- sv_setpv(sv,"IGNORE");
- else
- sv_setsv(sv,&PL_sv_undef);
- PL_psig_ptr[i] = SvREFCNT_inc(sv);
- SvTEMP_off(sv);
- }
- }
- return 0;
-}
-int
-Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg)
-{
- I32 i;
- STRLEN n_a;
- /* Are we clearing a signal entry? */
- i = whichsig(MgPV(mg,n_a));
- if (i) {
- if(PL_psig_ptr[i]) {
- SvREFCNT_dec(PL_psig_ptr[i]);
- PL_psig_ptr[i]=0;
- }
- if(PL_psig_name[i]) {
- SvREFCNT_dec(PL_psig_name[i]);
- PL_psig_name[i]=0;
- }
- }
- return 0;
-}
-
-int
-Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg)
-{
- register char *s;
- I32 i;
- SV** svp;
- STRLEN len;
-
- s = MgPV(mg,len);
- if (*s == '_') {
- if (strEQ(s,"__DIE__"))
- svp = &PL_diehook;
- else if (strEQ(s,"__WARN__"))
- svp = &PL_warnhook;
- else
- Perl_croak(aTHX_ "No such hook: %s", s);
- i = 0;
- if (*svp) {
- SvREFCNT_dec(*svp);
- *svp = 0;
- }
- }
- else {
- i = whichsig(s); /* ...no, a brick */
- if (!i) {
- if (ckWARN(WARN_SIGNAL))
- Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s);
- return 0;
- }
- SvREFCNT_dec(PL_psig_name[i]);
- SvREFCNT_dec(PL_psig_ptr[i]);
- PL_psig_ptr[i] = SvREFCNT_inc(sv);
- SvTEMP_off(sv); /* Make sure it doesn't go away on us */
- PL_psig_name[i] = newSVpvn(s, len);
- SvREADONLY_on(PL_psig_name[i]);
- }
- if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) {
- if (i)
- (void)rsignal(i, PL_sighandlerp);
- else
- *svp = SvREFCNT_inc(sv);
- return 0;
- }
- s = SvPV_force(sv,len);
- if (strEQ(s,"IGNORE")) {
- if (i)
- (void)rsignal(i, SIG_IGN);
- else
- *svp = 0;
- }
- else if (strEQ(s,"DEFAULT") || !*s) {
- if (i)
- (void)rsignal(i, SIG_DFL);
- else
- *svp = 0;
- }
- else {
- /*
- * We should warn if HINT_STRICT_REFS, but without
- * access to a known hint bit in a known OP, we can't
- * tell whether HINT_STRICT_REFS is in force or not.
- */
- if (!strchr(s,':') && !strchr(s,'\''))
- sv_insert(sv, 0, 0, "main::", 6);
- if (i)
- (void)rsignal(i, PL_sighandlerp);
- else
- *svp = SvREFCNT_inc(sv);
- }
- return 0;
-}
-
-int
-Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg)
-{
- PL_sub_generation++;
- return 0;
-}
-
-int
-Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg)
-{
- /* HV_badAMAGIC_on(Sv_STASH(sv)); */
- PL_amagic_generation++;
-
- return 0;
-}
-
-int
-Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg)
-{
- HV *hv = (HV*)LvTARG(sv);
- HE *entry;
- I32 i = 0;
-
- if (hv) {
- (void) hv_iterinit(hv);
- if (! SvTIED_mg((SV*)hv, 'P'))
- i = HvKEYS(hv);
- else {
- /*SUPPRESS 560*/
- while ((entry = hv_iternext(hv))) {
- i++;
- }
- }
- }
-
- sv_setiv(sv, (IV)i);
- return 0;
-}
-
-int
-Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg)
-{
- if (LvTARG(sv)) {
- hv_ksplit((HV*)LvTARG(sv), SvIV(sv));
- }
- return 0;
-}
-
-/* caller is responsible for stack switching/cleanup */
-STATIC int
-S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val)
-{
- dSP;
-
- PUSHMARK(SP);
- EXTEND(SP, n);
- PUSHs(SvTIED_obj(sv, mg));
- if (n > 1) {
- if (mg->mg_ptr) {
- if (mg->mg_len >= 0)
- PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len)));
- else if (mg->mg_len == HEf_SVKEY)
- PUSHs((SV*)mg->mg_ptr);
- }
- else if (mg->mg_type == 'p') {
- PUSHs(sv_2mortal(newSViv(mg->mg_len)));
- }
- }
- if (n > 2) {
- PUSHs(val);
- }
- PUTBACK;
-
- return call_method(meth, flags);
-}
-
-STATIC int
-S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth)
-{
- dSP;
-
- ENTER;
- SAVETMPS;
- PUSHSTACKi(PERLSI_MAGIC);
-
- if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) {
- sv_setsv(sv, *PL_stack_sp--);
- }
-
- POPSTACK;
- FREETMPS;
- LEAVE;
- return 0;
-}
-
-int
-Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg)
-{
- magic_methpack(sv,mg,"FETCH");
- if (mg->mg_ptr)
- mg->mg_flags |= MGf_GSKIP;
- return 0;
-}
-
-int
-Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg)
-{
- dSP;
- ENTER;
- PUSHSTACKi(PERLSI_MAGIC);
- magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv);
- POPSTACK;
- LEAVE;
- return 0;
-}
-
-int
-Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg)
-{
- return magic_methpack(sv,mg,"DELETE");
-}
-
-
-U32
-Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg)
-{
- dSP;
- U32 retval = 0;
-
- ENTER;
- SAVETMPS;
- PUSHSTACKi(PERLSI_MAGIC);
- if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) {
- sv = *PL_stack_sp--;
- retval = (U32) SvIV(sv)-1;
- }
- POPSTACK;
- FREETMPS;
- LEAVE;
- return retval;
-}
-
-int
-Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg)
-{
- dSP;
-
- ENTER;
- PUSHSTACKi(PERLSI_MAGIC);
- PUSHMARK(SP);
- XPUSHs(SvTIED_obj(sv, mg));
- PUTBACK;
- call_method("CLEAR", G_SCALAR|G_DISCARD);
- POPSTACK;
- LEAVE;
- return 0;
-}
-
-int
-Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key)
-{
- dSP;
- const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY";
-
- ENTER;
- SAVETMPS;
- PUSHSTACKi(PERLSI_MAGIC);
- PUSHMARK(SP);
- EXTEND(SP, 2);
- PUSHs(SvTIED_obj(sv, mg));
- if (SvOK(key))
- PUSHs(key);
- PUTBACK;
-
- if (call_method(meth, G_SCALAR))
- sv_setsv(key, *PL_stack_sp--);
-
- POPSTACK;
- FREETMPS;
- LEAVE;
- return 0;
-}
-
-int
-Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg)
-{
- return magic_methpack(sv,mg,"EXISTS");
-}
-
-int
-Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg)
-{
- OP *o;
- I32 i;
- GV* gv;
- SV** svp;
- STRLEN n_a;
-
- gv = PL_DBline;
- i = SvTRUE(sv);
- svp = av_fetch(GvAV(gv),
- atoi(MgPV(mg,n_a)), FALSE);
- if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp))))
- o->op_private = i;
- return 0;
-}
-
-int
-Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg)
-{
- sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase);
- return 0;
-}
-
-int
-Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg)
-{
- av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase);
- return 0;
-}
-
-int
-Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg)
-{
- SV* lsv = LvTARG(sv);
-
- if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) {
- mg = mg_find(lsv, 'g');
- if (mg && mg->mg_len >= 0) {
- I32 i = mg->mg_len;
- if (DO_UTF8(lsv))
- sv_pos_b2u(lsv, &i);
- sv_setiv(sv, i + PL_curcop->cop_arybase);
- return 0;
- }
- }
- (void)SvOK_off(sv);
- return 0;
-}
-
-int
-Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg)
-{
- SV* lsv = LvTARG(sv);
- SSize_t pos;
- STRLEN len;
- STRLEN ulen = 0;
-
- mg = 0;
-
- if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv))
- mg = mg_find(lsv, 'g');
- if (!mg) {
- if (!SvOK(sv))
- return 0;
- sv_magic(lsv, (SV*)0, 'g', Nullch, 0);
- mg = mg_find(lsv, 'g');
- }
- else if (!SvOK(sv)) {
- mg->mg_len = -1;
- return 0;
- }
- len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv);
-
- pos = SvIV(sv) - PL_curcop->cop_arybase;
-
- if (DO_UTF8(lsv)) {
- ulen = sv_len_utf8(lsv);
- if (ulen)
- len = ulen;
- }
-
- if (pos < 0) {
- pos += len;
- if (pos < 0)
- pos = 0;
- }
- else if (pos > len)
- pos = len;
-
- if (ulen) {
- I32 p = pos;
- sv_pos_u2b(lsv, &p, 0);
- pos = p;
- }
-
- mg->mg_len = pos;
- mg->mg_flags &= ~MGf_MINMATCH;
-
- return 0;
-}
-
-int
-Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg)
-{
- if (SvFAKE(sv)) { /* FAKE globs can get coerced */
- SvFAKE_off(sv);
- gv_efullname3(sv,((GV*)sv), "*");
- SvFAKE_on(sv);
- }
- else
- gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */
- return 0;
-}
-
-int
-Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg)
-{
- register char *s;
- GV* gv;
- STRLEN n_a;
-
- if (!SvOK(sv))
- return 0;
- s = SvPV(sv, n_a);
- if (*s == '*' && s[1])
- s++;
- gv = gv_fetchpv(s,TRUE, SVt_PVGV);
- if (sv == (SV*)gv)
- return 0;
- if (GvGP(sv))
- gp_free((GV*)sv);
- GvGP(sv) = gp_ref(GvGP(gv));
- return 0;
-}
-
-int
-Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg)
-{
- STRLEN len;
- SV *lsv = LvTARG(sv);
- char *tmps = SvPV(lsv,len);
- I32 offs = LvTARGOFF(sv);
- I32 rem = LvTARGLEN(sv);
-
- if (SvUTF8(lsv))
- sv_pos_u2b(lsv, &offs, &rem);
- if (offs > len)
- offs = len;
- if (rem + offs > len)
- rem = len - offs;
- sv_setpvn(sv, tmps + offs, (STRLEN)rem);
- if (SvUTF8(lsv))
- SvUTF8_on(sv);
- return 0;
-}
-
-int
-Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg)
-{
- STRLEN len;
- char *tmps = SvPV(sv, len);
- SV *lsv = LvTARG(sv);
- I32 lvoff = LvTARGOFF(sv);
- I32 lvlen = LvTARGLEN(sv);
-
- if (DO_UTF8(sv)) {
- sv_utf8_upgrade(lsv);
- sv_pos_u2b(lsv, &lvoff, &lvlen);
- sv_insert(lsv, lvoff, lvlen, tmps, len);
- SvUTF8_on(lsv);
- }
- else if (SvUTF8(lsv)) {
- sv_pos_u2b(lsv, &lvoff, &lvlen);
- tmps = (char*)bytes_to_utf8((U8*)tmps, &len);
- sv_insert(lsv, lvoff, lvlen, tmps, len);
- Safefree(tmps);
- }
- else
- sv_insert(lsv, lvoff, lvlen, tmps, len);
-
- return 0;
-}
-
-int
-Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg)
-{
- TAINT_IF((mg->mg_len & 1) ||
- ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */
- return 0;
-}
-
-int
-Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg)
-{
- if (PL_localizing) {
- if (PL_localizing == 1)
- mg->mg_len <<= 1;
- else
- mg->mg_len >>= 1;
- }
- else if (PL_tainted)
- mg->mg_len |= 1;
- else
- mg->mg_len &= ~1;
- return 0;
-}
-
-int
-Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg)
-{
- SV *lsv = LvTARG(sv);
-
- if (!lsv) {
- (void)SvOK_off(sv);
- return 0;
- }
-
- sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv)));
- return 0;
-}
-
-int
-Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg)
-{
- do_vecset(sv); /* XXX slurp this routine */
- return 0;
-}
-
-int
-Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg)
-{
- SV *targ = Nullsv;
- if (LvTARGLEN(sv)) {
- if (mg->mg_obj) {
- SV *ahv = LvTARG(sv);
- if (SvTYPE(ahv) == SVt_PVHV) {
- HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0);
- if (he)
- targ = HeVAL(he);
- }
- else {
- SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0);
- if (svp)
- targ = *svp;
- }
- }
- else {
- AV* av = (AV*)LvTARG(sv);
- if ((I32)LvTARGOFF(sv) <= AvFILL(av))
- targ = AvARRAY(av)[LvTARGOFF(sv)];
- }
- if (targ && targ != &PL_sv_undef) {
- /* somebody else defined it for us */
- SvREFCNT_dec(LvTARG(sv));
- LvTARG(sv) = SvREFCNT_inc(targ);
- LvTARGLEN(sv) = 0;
- SvREFCNT_dec(mg->mg_obj);
- mg->mg_obj = Nullsv;
- mg->mg_flags &= ~MGf_REFCOUNTED;
- }
- }
- else
- targ = LvTARG(sv);
- sv_setsv(sv, targ ? targ : &PL_sv_undef);
- return 0;
-}
-
-int
-Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg)
-{
- if (LvTARGLEN(sv))
- vivify_defelem(sv);
- if (LvTARG(sv)) {
- sv_setsv(LvTARG(sv), sv);
- SvSETMAGIC(LvTARG(sv));
- }
- return 0;
-}
-
-void
-Perl_vivify_defelem(pTHX_ SV *sv)
-{
- MAGIC *mg;
- SV *value = Nullsv;
-
- if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y')))
- return;
- if (mg->mg_obj) {
- SV *ahv = LvTARG(sv);
- STRLEN n_a;
- if (SvTYPE(ahv) == SVt_PVHV) {
- HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0);
- if (he)
- value = HeVAL(he);
- }
- else {
- SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0);
- if (svp)
- value = *svp;
- }
- if (!value || value == &PL_sv_undef)
- Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a));
- }
- else {
- AV* av = (AV*)LvTARG(sv);
- if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av))
- LvTARG(sv) = Nullsv; /* array can't be extended */
- else {
- SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE);
- if (!svp || (value = *svp) == &PL_sv_undef)
- Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv));
- }
- }
- (void)SvREFCNT_inc(value);
- SvREFCNT_dec(LvTARG(sv));
- LvTARG(sv) = value;
- LvTARGLEN(sv) = 0;
- SvREFCNT_dec(mg->mg_obj);
- mg->mg_obj = Nullsv;
- mg->mg_flags &= ~MGf_REFCOUNTED;
-}
-
-int
-Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg)
-{
- AV *av = (AV*)mg->mg_obj;
- SV **svp = AvARRAY(av);
- I32 i = AvFILLp(av);
- while (i >= 0) {
- if (svp[i] && svp[i] != &PL_sv_undef) {
- if (!SvWEAKREF(svp[i]))
- Perl_croak(aTHX_ "panic: magic_killbackrefs");
- /* XXX Should we check that it hasn't changed? */
- SvRV(svp[i]) = 0;
- (void)SvOK_off(svp[i]);
- SvWEAKREF_off(svp[i]);
- svp[i] = &PL_sv_undef;
- }
- i--;
- }
- return 0;
-}
-
-int
-Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg)
-{
- mg->mg_len = -1;
- SvSCREAM_off(sv);
- return 0;
-}
-
-int
-Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg)
-{
- sv_unmagic(sv, 'B');
- SvVALID_off(sv);
- return 0;
-}
-
-int
-Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg)
-{
- sv_unmagic(sv, 'f');
- SvCOMPILED_off(sv);
- return 0;
-}
-
-int
-Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg)
-{
- struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
-
- if (uf && uf->uf_set)
- (*uf->uf_set)(uf->uf_index, sv);
- return 0;
-}
-
-int
-Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg)
-{
- regexp *re = (regexp *)mg->mg_obj;
- ReREFCNT_dec(re);
- return 0;
-}
-
-#ifdef USE_LOCALE_COLLATE
-int
-Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg)
-{
- /*
- * RenE<eacute> Descartes said "I think not."
- * and vanished with a faint plop.
- */
- if (mg->mg_ptr) {
- Safefree(mg->mg_ptr);
- mg->mg_ptr = NULL;
- mg->mg_len = -1;
- }
- return 0;
-}
-#endif /* USE_LOCALE_COLLATE */
-
-int
-Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
-{
- register char *s;
- I32 i;
- STRLEN len;
- switch (*mg->mg_ptr) {
- case '\001': /* ^A */
- sv_setsv(PL_bodytarget, sv);
- break;
- case '\003': /* ^C */
- PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- break;
-
- case '\004': /* ^D */
- PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000;
- DEBUG_x(dump_all());
- break;
- case '\005': /* ^E */
-#ifdef MACOS_TRADITIONAL
- gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
-#else
-# ifdef VMS
- set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
-# else
-# ifdef WIN32
- SetLastError( SvIV(sv) );
-# else
-# ifndef OS2
- /* will anyone ever use this? */
- SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4);
-# endif
-# endif
-# endif
-#endif
- break;
- case '\006': /* ^F */
- PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- break;
- case '\010': /* ^H */
- PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- break;
- case '\011': /* ^I */ /* NOT \t in EBCDIC */
- if (PL_inplace)
- Safefree(PL_inplace);
- if (SvOK(sv))
- PL_inplace = savepv(SvPV(sv,len));
- else
- PL_inplace = Nullch;
- break;
- case '\017': /* ^O */
- if (PL_osname)
- Safefree(PL_osname);
- if (SvOK(sv))
- PL_osname = savepv(SvPV(sv,len));
- else
- PL_osname = Nullch;
- break;
- case '\020': /* ^P */
- PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- if (PL_perldb && !PL_DBsingle)
- init_debugger();
- break;
- case '\024': /* ^T */
-#ifdef BIG_TIME
- PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv));
-#else
- PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
-#endif
- break;
- case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */
- if (*(mg->mg_ptr+1) == '\0') {
- if ( ! (PL_dowarn & G_WARN_ALL_MASK)) {
- i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- PL_dowarn = (PL_dowarn & ~G_WARN_ON)
- | (i ? G_WARN_ON : G_WARN_OFF) ;
- }
- }
- else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) {
- if ( ! (PL_dowarn & G_WARN_ALL_MASK)) {
- if (!SvPOK(sv) && PL_localizing) {
- sv_setpvn(sv, WARN_NONEstring, WARNsize);
- PL_compiling.cop_warnings = pWARN_NONE;
- break;
- }
- {
- STRLEN len, i;
- int accumulate = 0 ;
- int any_fatals = 0 ;
- char * ptr = (char*)SvPV(sv, len) ;
- for (i = 0 ; i < len ; ++i) {
- accumulate |= ptr[i] ;
- any_fatals |= (ptr[i] & 0xAA) ;
- }
- if (!accumulate)
- PL_compiling.cop_warnings = pWARN_NONE;
- else if (isWARN_on(sv, WARN_ALL) && !any_fatals) {
- PL_compiling.cop_warnings = pWARN_ALL;
- PL_dowarn |= G_WARN_ONCE ;
- }
- else {
- if (specialWARN(PL_compiling.cop_warnings))
- PL_compiling.cop_warnings = newSVsv(sv) ;
- else
- sv_setsv(PL_compiling.cop_warnings, sv);
- if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE))
- PL_dowarn |= G_WARN_ONCE ;
- }
-
- }
- }
- }
- else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS"))
- PL_widesyscalls = SvTRUE(sv);
- break;
- case '.':
- if (PL_localizing) {
- if (PL_localizing == 1)
- SAVESPTR(PL_last_in_gv);
- }
- else if (SvOK(sv) && GvIO(PL_last_in_gv))
- IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv);
- break;
- case '^':
- Safefree(IoTOP_NAME(GvIOp(PL_defoutgv)));
- IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len));
- IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
- break;
- case '~':
- Safefree(IoFMT_NAME(GvIOp(PL_defoutgv)));
- IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len));
- IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
- break;
- case '=':
- IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
- break;
- case '-':
- IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
- if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L)
- IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L;
- break;
- case '%':
- IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
- break;
- case '|':
- {
- IO *io = GvIOp(PL_defoutgv);
- if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0)
- IoFLAGS(io) &= ~IOf_FLUSH;
- else {
- if (!(IoFLAGS(io) & IOf_FLUSH)) {
- PerlIO *ofp = IoOFP(io);
- if (ofp)
- (void)PerlIO_flush(ofp);
- IoFLAGS(io) |= IOf_FLUSH;
- }
- }
- }
- break;
- case '*':
- i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- PL_multiline = (i != 0);
- break;
- case '/':
- SvREFCNT_dec(PL_nrs);
- PL_nrs = newSVsv(sv);
- SvREFCNT_dec(PL_rs);
- PL_rs = SvREFCNT_inc(PL_nrs);
- break;
- case '\\':
- if (PL_ors)
- Safefree(PL_ors);
- if (SvOK(sv) || SvGMAGICAL(sv)) {
- s = SvPV(sv,PL_orslen);
- PL_ors = savepvn(s,PL_orslen);
- }
- else {
- PL_ors = Nullch;
- PL_orslen = 0;
- }
- break;
- case ',':
- if (PL_ofs)
- Safefree(PL_ofs);
- PL_ofs = savepv(SvPV(sv, PL_ofslen));
- break;
- case '#':
- if (PL_ofmt)
- Safefree(PL_ofmt);
- PL_ofmt = savepv(SvPV(sv,len));
- break;
- case '[':
- PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- break;
- case '?':
-#ifdef COMPLEX_STATUS
- if (PL_localizing == 2) {
- PL_statusvalue = LvTARGOFF(sv);
- PL_statusvalue_vms = LvTARGLEN(sv);
- }
- else
-#endif
-#ifdef VMSISH_STATUS
- if (VMSISH_STATUS)
- STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)));
- else
-#endif
- STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
- break;
- case '!':
- SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0,
- (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno);
- break;
- case '<':
- PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- if (PL_delaymagic) {
- PL_delaymagic |= DM_RUID;
- break; /* don't do magic till later */
- }
-#ifdef HAS_SETRUID
- (void)setruid((Uid_t)PL_uid);
-#else
-#ifdef HAS_SETREUID
- (void)setreuid((Uid_t)PL_uid, (Uid_t)-1);
-#else
-#ifdef HAS_SETRESUID
- (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1);
-#else
- if (PL_uid == PL_euid) /* special case $< = $> */
- (void)PerlProc_setuid(PL_uid);
- else {
- PL_uid = PerlProc_getuid();
- Perl_croak(aTHX_ "setruid() not implemented");
- }
-#endif
-#endif
-#endif
- PL_uid = PerlProc_getuid();
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
- break;
- case '>':
- PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- if (PL_delaymagic) {
- PL_delaymagic |= DM_EUID;
- break; /* don't do magic till later */
- }
-#ifdef HAS_SETEUID
- (void)seteuid((Uid_t)PL_euid);
-#else
-#ifdef HAS_SETREUID
- (void)setreuid((Uid_t)-1, (Uid_t)PL_euid);
-#else
-#ifdef HAS_SETRESUID
- (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1);
-#else
- if (PL_euid == PL_uid) /* special case $> = $< */
- PerlProc_setuid(PL_euid);
- else {
- PL_euid = PerlProc_geteuid();
- Perl_croak(aTHX_ "seteuid() not implemented");
- }
-#endif
-#endif
-#endif
- PL_euid = PerlProc_geteuid();
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
- break;
- case '(':
- PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- if (PL_delaymagic) {
- PL_delaymagic |= DM_RGID;
- break; /* don't do magic till later */
- }
-#ifdef HAS_SETRGID
- (void)setrgid((Gid_t)PL_gid);
-#else
-#ifdef HAS_SETREGID
- (void)setregid((Gid_t)PL_gid, (Gid_t)-1);
-#else
-#ifdef HAS_SETRESGID
- (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1);
-#else
- if (PL_gid == PL_egid) /* special case $( = $) */
- (void)PerlProc_setgid(PL_gid);
- else {
- PL_gid = PerlProc_getgid();
- Perl_croak(aTHX_ "setrgid() not implemented");
- }
-#endif
-#endif
-#endif
- PL_gid = PerlProc_getgid();
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
- break;
- case ')':
-#ifdef HAS_SETGROUPS
- {
- char *p = SvPV(sv, len);
- Groups_t gary[NGROUPS];
-
- while (isSPACE(*p))
- ++p;
- PL_egid = Atol(p);
- for (i = 0; i < NGROUPS; ++i) {
- while (*p && !isSPACE(*p))
- ++p;
- while (isSPACE(*p))
- ++p;
- if (!*p)
- break;
- gary[i] = Atol(p);
- }
- if (i)
- (void)setgroups(i, gary);
- }
-#else /* HAS_SETGROUPS */
- PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
-#endif /* HAS_SETGROUPS */
- if (PL_delaymagic) {
- PL_delaymagic |= DM_EGID;
- break; /* don't do magic till later */
- }
-#ifdef HAS_SETEGID
- (void)setegid((Gid_t)PL_egid);
-#else
-#ifdef HAS_SETREGID
- (void)setregid((Gid_t)-1, (Gid_t)PL_egid);
-#else
-#ifdef HAS_SETRESGID
- (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1);
-#else
- if (PL_egid == PL_gid) /* special case $) = $( */
- (void)PerlProc_setgid(PL_egid);
- else {
- PL_egid = PerlProc_getegid();
- Perl_croak(aTHX_ "setegid() not implemented");
- }
-#endif
-#endif
-#endif
- PL_egid = PerlProc_getegid();
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
- break;
- case ':':
- PL_chopset = SvPV_force(sv,len);
- break;
-#ifndef MACOS_TRADITIONAL
- case '0':
-#ifdef HAS_SETPROCTITLE
- /* The BSDs don't show the argv[] in ps(1) output, they
- * show a string from the process struct and provide
- * the setproctitle() routine to manipulate that. */
- {
- s = SvPV(sv, len);
-# if __FreeBSD_version >= 410001
- /* The leading "-" removes the "perl: " prefix,
- * but not the "(perl) suffix from the ps(1)
- * output, because that's what ps(1) shows if the
- * argv[] is modified. */
- setproctitle("-%s", s, len + 1);
-# else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */
- /* This doesn't really work if you assume that
- * $0 = 'foobar'; will wipe out 'perl' from the $0
- * because in ps(1) output the result will be like
- * sprintf("perl: %s (perl)", s)
- * I guess this is a security feature:
- * one (a user process) cannot get rid of the original name.
- * --jhi */
- setproctitle("%s", s);
-# endif
- }
-#endif
- if (!PL_origalen) {
- s = PL_origargv[0];
- s += strlen(s);
- /* See if all the arguments are contiguous in memory */
- for (i = 1; i < PL_origargc; i++) {
- if (PL_origargv[i] == s + 1
-#ifdef OS2
- || PL_origargv[i] == s + 2
-#endif
- )
- {
- ++s;
- s += strlen(s); /* this one is ok too */
- }
- else
- break;
- }
- /* can grab env area too? */
- if (PL_origenviron && (PL_origenviron[0] == s + 1
-#ifdef OS2
- || (PL_origenviron[0] == s + 9 && (s += 8))
-#endif
- )) {
- my_setenv("NoNe SuCh", Nullch);
- /* force copy of environment */
- for (i = 0; PL_origenviron[i]; i++)
- if (PL_origenviron[i] == s + 1) {
- ++s;
- s += strlen(s);
- }
- else
- break;
- }
- PL_origalen = s - PL_origargv[0];
- }
- s = SvPV_force(sv,len);
- i = len;
- if (i >= PL_origalen) {
- i = PL_origalen;
- /* don't allow system to limit $0 seen by script */
- /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */
- Copy(s, PL_origargv[0], i, char);
- s = PL_origargv[0]+i;
- *s = '\0';
- }
- else {
- Copy(s, PL_origargv[0], i, char);
- s = PL_origargv[0]+i;
- *s++ = '\0';
- while (++i < PL_origalen)
- *s++ = ' ';
- s = PL_origargv[0]+i;
- for (i = 1; i < PL_origargc; i++)
- PL_origargv[i] = Nullch;
- }
- break;
-#endif
-#ifdef USE_THREADS
- case '@':
- sv_setsv(thr->errsv, sv);
- break;
-#endif /* USE_THREADS */
- }
- return 0;
-}
-
-#ifdef USE_THREADS
-int
-Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg)
-{
- DEBUG_S(PerlIO_printf(Perl_debug_log,
- "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n",
- PTR2UV(thr), PTR2UV(sv));)
- if (MgOWNER(mg))
- Perl_croak(aTHX_ "panic: magic_mutexfree");
- MUTEX_DESTROY(MgMUTEXP(mg));
- COND_DESTROY(MgCONDP(mg));
- return 0;
-}
-#endif /* USE_THREADS */
-
-I32
-Perl_whichsig(pTHX_ char *sig)
-{
- register char **sigv;
-
- for (sigv = PL_sig_name+1; *sigv; sigv++)
- if (strEQ(sig,*sigv))
- return PL_sig_num[sigv - PL_sig_name];
-#ifdef SIGCLD
- if (strEQ(sig,"CHLD"))
- return SIGCLD;
-#endif
-#ifdef SIGCHLD
- if (strEQ(sig,"CLD"))
- return SIGCHLD;
-#endif
- return 0;
-}
-
-static SV* sig_sv;
-
-Signal_t
-Perl_sighandler(int sig)
-{
-#if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT)
- dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */
-#else
- dTHX;
-#endif
- dSP;
- GV *gv = Nullgv;
- HV *st;
- SV *sv, *tSv = PL_Sv;
- CV *cv = Nullcv;
- OP *myop = PL_op;
- U32 flags = 0;
- I32 o_save_i = PL_savestack_ix;
- XPV *tXpv = PL_Xpv;
-
-#if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT)
- PERL_SET_THX(aTHXo); /* fake TLS, see above */
-#endif
-
- if (PL_savestack_ix + 15 <= PL_savestack_max)
- flags |= 1;
- if (PL_markstack_ptr < PL_markstack_max - 2)
- flags |= 4;
- if (PL_retstack_ix < PL_retstack_max - 2)
- flags |= 8;
- if (PL_scopestack_ix < PL_scopestack_max - 3)
- flags |= 16;
-
- if (!PL_psig_ptr[sig])
- Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n",
- PL_sig_name[sig]);
-
- /* Max number of items pushed there is 3*n or 4. We cannot fix
- infinity, so we fix 4 (in fact 5): */
- if (flags & 1) {
- PL_savestack_ix += 5; /* Protect save in progress. */
- o_save_i = PL_savestack_ix;
- SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags);
- }
- if (flags & 4)
- PL_markstack_ptr++; /* Protect mark. */
- if (flags & 8) {
- PL_retstack_ix++;
- PL_retstack[PL_retstack_ix] = NULL;
- }
- if (flags & 16)
- PL_scopestack_ix += 1;
- /* sv_2cv is too complicated, try a simpler variant first: */
- if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig]))
- || SvTYPE(cv) != SVt_PVCV)
- cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE);
-
- if (!cv || !CvROOT(cv)) {
- if (ckWARN(WARN_SIGNAL))
- Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n",
- PL_sig_name[sig], (gv ? GvENAME(gv)
- : ((cv && CvGV(cv))
- ? GvENAME(CvGV(cv))
- : "__ANON__")));
- goto cleanup;
- }
-
- if(PL_psig_name[sig]) {
- sv = SvREFCNT_inc(PL_psig_name[sig]);
- flags |= 64;
- sig_sv = sv;
- } else {
- sv = sv_newmortal();
- sv_setpv(sv,PL_sig_name[sig]);
- }
-
- PUSHSTACKi(PERLSI_SIGNAL);
- PUSHMARK(SP);
- PUSHs(sv);
- PUTBACK;
-
- call_sv((SV*)cv, G_DISCARD);
-
- POPSTACK;
-cleanup:
- if (flags & 1)
- PL_savestack_ix -= 8; /* Unprotect save in progress. */
- if (flags & 4)
- PL_markstack_ptr--;
- if (flags & 8)
- PL_retstack_ix--;
- if (flags & 16)
- PL_scopestack_ix -= 1;
- if (flags & 64)
- SvREFCNT_dec(sv);
- PL_op = myop; /* Apparently not needed... */
-
- PL_Sv = tSv; /* Restore global temporaries. */
- PL_Xpv = tXpv;
- return;
-}
-
-
-#ifdef PERL_OBJECT
-#include "XSUB.h"
-#endif
-
-static void
-restore_magic(pTHXo_ void *p)
-{
- MGS* mgs = SSPTR(PTR2IV(p), MGS*);
- SV* sv = mgs->mgs_sv;
-
- if (!sv)
- return;
-
- if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
- {
- if (mgs->mgs_flags)
- SvFLAGS(sv) |= mgs->mgs_flags;
- else
- mg_magical(sv);
- if (SvGMAGICAL(sv))
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
- }
-
- mgs->mgs_sv = NULL; /* mark the MGS structure as restored */
-
- /* If we're still on top of the stack, pop us off. (That condition
- * will be satisfied if restore_magic was called explicitly, but *not*
- * if it's being called via leave_scope.)
- * The reason for doing this is that otherwise, things like sv_2cv()
- * may leave alloc gunk on the savestack, and some code
- * (e.g. sighandler) doesn't expect that...
- */
- if (PL_savestack_ix == mgs->mgs_ss_ix)
- {
- I32 popval = SSPOPINT;
- assert(popval == SAVEt_DESTRUCTOR_X);
- PL_savestack_ix -= 2;
- popval = SSPOPINT;
- assert(popval == SAVEt_ALLOC);
- popval = SSPOPINT;
- PL_savestack_ix -= popval;
- }
-
-}
-
-static void
-unwind_handler_stack(pTHXo_ void *p)
-{
- U32 flags = *(U32*)p;
-
- if (flags & 1)
- PL_savestack_ix -= 5; /* Unprotect save in progress. */
- /* cxstack_ix-- Not needed, die already unwound it. */
- if (flags & 64)
- SvREFCNT_dec(sig_sv);
-}
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