/* mg.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, 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.
# include <unistd.h>
#endif
+#if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS)
+# ifndef NGROUPS
+# define NGROUPS 32
+# endif
+#endif
+
/*
* Use the "DESTRUCTOR" scope cleanup to reinstate magic.
*/
static void restore_magic _((void *p));
-static MGS *
-save_magic(sv)
+static void
+save_magic(mgs, sv)
+MGS* mgs;
SV* sv;
{
- MGS* mgs;
-
assert(SvMAGICAL(sv));
- mgs = (MGS*)safemalloc(sizeof(MGS));
mgs->mgs_sv = sv;
mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv);
SAVEDESTRUCTOR(restore_magic, mgs);
SvMAGICAL_off(sv);
SvREADONLY_off(sv);
SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
-
- return mgs;
}
static void
restore_magic(p)
void* p;
{
- MGS *mgs = (MGS*)p;
+ MGS* mgs = (MGS*)p;
SV* sv = mgs->mgs_sv;
if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
if (SvGMAGICAL(sv))
SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
}
-
- Safefree(mgs);
}
mg_get(sv)
SV* sv;
{
- MGS* mgs;
+ MGS mgs;
MAGIC* mg;
MAGIC** mgp;
int mgp_valid = 0;
ENTER;
- mgs = save_magic(sv);
+ save_magic(&mgs, sv);
mgp = &SvMAGIC(sv);
while ((mg = *mgp) != 0) {
if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) {
(*vtbl->svt_get)(sv, mg);
/* Ignore this magic if it's been deleted */
- if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && (mg->mg_flags & MGf_GSKIP))
- mgs->mgs_flags = 0;
+ if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) &&
+ (mg->mg_flags & MGf_GSKIP))
+ mgs.mgs_flags = 0;
}
/* Advance to next magic (complicated by possible deletion) */
if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) {
mg_set(sv)
SV* sv;
{
- MGS* mgs;
+ MGS mgs;
MAGIC* mg;
MAGIC* nextmg;
ENTER;
- mgs = save_magic(sv);
+ save_magic(&mgs, 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 */
- mgs->mgs_flags = 0;
+ mgs.mgs_flags = 0;
}
if (vtbl && vtbl->svt_set)
(*vtbl->svt_set)(sv, mg);
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
MGVTBL* vtbl = mg->mg_virtual;
if (vtbl && vtbl->svt_len) {
+ MGS mgs;
+
ENTER;
- save_magic(sv);
+ save_magic(&mgs, sv);
/* omit MGf_GSKIP -- not changed here */
len = (*vtbl->svt_len)(sv, mg);
LEAVE;
mg_clear(sv)
SV* sv;
{
+ MGS mgs;
MAGIC* mg;
ENTER;
- save_magic(sv);
+ save_magic(&mgs, sv);
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
MGVTBL* vtbl = mg->mg_virtual;
register I32 paren;
register char *s;
register I32 i;
+ register REGEXP *rx;
char *t;
switch (*mg->mg_ptr) {
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9': case '&':
- if (curpm) {
+ if (curpm && (rx = curpm->op_pmregexp)) {
paren = atoi(mg->mg_ptr);
getparen:
- if (curpm->op_pmregexp &&
- paren <= curpm->op_pmregexp->nparens &&
- (s = curpm->op_pmregexp->startp[paren]) &&
- (t = curpm->op_pmregexp->endp[paren]) ) {
+ if (paren <= rx->nparens &&
+ (s = rx->startp[paren]) &&
+ (t = rx->endp[paren]))
+ {
i = t - s;
if (i >= 0)
return i;
}
}
return 0;
- break;
case '+':
- if (curpm) {
- paren = curpm->op_pmregexp->lastparen;
- if (!paren)
- return 0;
- goto getparen;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ paren = rx->lastparen;
+ if (paren)
+ goto getparen;
}
return 0;
- break;
case '`':
- if (curpm) {
- if (curpm->op_pmregexp &&
- (s = curpm->op_pmregexp->subbeg) ) {
- i = curpm->op_pmregexp->startp[0] - s;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if ((s = rx->subbeg) && rx->startp[0]) {
+ i = rx->startp[0] - s;
if (i >= 0)
return i;
}
}
return 0;
case '\'':
- if (curpm) {
- if (curpm->op_pmregexp &&
- (s = curpm->op_pmregexp->endp[0]) ) {
- return (STRLEN) (curpm->op_pmregexp->subend - s);
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if (rx->subend && (s = rx->endp[0])) {
+ i = rx->subend - s;
+ if (i >= 0)
+ return i;
}
}
return 0;
register I32 paren;
register char *s;
register I32 i;
+ register REGEXP *rx;
char *t;
switch (*mg->mg_ptr) {
sv_setsv(sv, bodytarget);
break;
case '\004': /* ^D */
- sv_setiv(sv,(I32)(debug & 32767));
+ sv_setiv(sv, (IV)(debug & 32767));
break;
case '\005': /* ^E */
#ifdef VMS
# include <starlet.h>
char msg[255];
$DESCRIPTOR(msgdsc,msg);
- sv_setnv(sv,(double)vaxc$errno);
+ sv_setnv(sv,(double) 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
}
#else
#ifdef OS2
- sv_setnv(sv,(double)Perl_rc);
+ sv_setnv(sv, (double)Perl_rc);
sv_setpv(sv, os2error(Perl_rc));
#else
- sv_setnv(sv,(double)errno);
+ sv_setnv(sv, (double)errno);
sv_setpv(sv, errno ? Strerror(errno) : "");
#endif
#endif
SvNOK_on(sv); /* what a wonderful hack! */
break;
case '\006': /* ^F */
- sv_setiv(sv,(I32)maxsysfd);
+ sv_setiv(sv, (IV)maxsysfd);
break;
case '\010': /* ^H */
- sv_setiv(sv,(I32)hints);
+ sv_setiv(sv, (IV)hints);
break;
case '\t': /* ^I */
if (inplace)
sv_setpv(sv, inplace);
else
- sv_setsv(sv,&sv_undef);
+ sv_setsv(sv, &sv_undef);
break;
case '\017': /* ^O */
- sv_setpv(sv,osname);
+ sv_setpv(sv, osname);
break;
case '\020': /* ^P */
- sv_setiv(sv,(I32)perldb);
+ sv_setiv(sv, (IV)perldb);
break;
case '\024': /* ^T */
#ifdef BIG_TIME
- sv_setnv(sv,basetime);
+ sv_setnv(sv, basetime);
#else
- sv_setiv(sv,(I32)basetime);
+ sv_setiv(sv, (IV)basetime);
#endif
break;
case '\027': /* ^W */
- sv_setiv(sv,(I32)dowarn);
+ sv_setiv(sv, (IV)dowarn);
break;
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9': case '&':
- if (curpm) {
+ if (curpm && (rx = curpm->op_pmregexp)) {
paren = atoi(GvENAME((GV*)mg->mg_obj));
getparen:
- if (curpm->op_pmregexp &&
- paren <= curpm->op_pmregexp->nparens &&
- (s = curpm->op_pmregexp->startp[paren]) &&
- (t = curpm->op_pmregexp->endp[paren]) ) {
+ if (paren <= rx->nparens &&
+ (s = rx->startp[paren]) &&
+ (t = rx->endp[paren]))
+ {
i = t - s;
+ getrx:
if (i >= 0) {
- MAGIC *tmg;
+ bool was_tainted;
+ if (tainting) {
+ was_tainted = tainted;
+ tainted = FALSE;
+ }
sv_setpvn(sv,s,i);
- if (tainting && (tmg = mg_find(sv,'t')))
- tmg->mg_len = 0; /* guarantee $1 untainted */
+ if (tainting)
+ tainted = was_tainted || rx->exec_tainted;
break;
}
}
sv_setsv(sv,&sv_undef);
break;
case '+':
- if (curpm) {
- paren = curpm->op_pmregexp->lastparen;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ paren = rx->lastparen;
if (paren)
goto getparen;
}
sv_setsv(sv,&sv_undef);
break;
case '`':
- if (curpm) {
- if (curpm->op_pmregexp &&
- (s = curpm->op_pmregexp->subbeg) ) {
- i = curpm->op_pmregexp->startp[0] - s;
- if (i >= 0) {
- sv_setpvn(sv,s,i);
- break;
- }
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if ((s = rx->subbeg) && rx->startp[0]) {
+ i = rx->startp[0] - s;
+ goto getrx;
}
}
sv_setsv(sv,&sv_undef);
break;
case '\'':
- if (curpm) {
- if (curpm->op_pmregexp &&
- (s = curpm->op_pmregexp->endp[0]) ) {
- sv_setpvn(sv,s, curpm->op_pmregexp->subend - s);
- break;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if (rx->subend && (s = rx->endp[0])) {
+ i = rx->subend - s;
+ goto getrx;
}
}
sv_setsv(sv,&sv_undef);
case '.':
#ifndef lint
if (GvIO(last_in_gv)) {
- sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv)));
+ sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv)));
}
#endif
break;
case '?':
- sv_setiv(sv,(I32)statusvalue);
+ sv_setiv(sv, (IV)STATUS_CURRENT);
+#ifdef COMPLEX_STATUS
+ LvTARGOFF(sv) = statusvalue;
+ LvTARGLEN(sv) = statusvalue_vms;
+#endif
break;
case '^':
s = IoTOP_NAME(GvIOp(defoutgv));
break;
#ifndef lint
case '=':
- sv_setiv(sv,(I32)IoPAGE_LEN(GvIOp(defoutgv)));
+ sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv)));
break;
case '-':
- sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv)));
+ sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv)));
break;
case '%':
- sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv)));
+ sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv)));
break;
#endif
case ':':
case '/':
break;
case '[':
- sv_setiv(sv,(I32)curcop->cop_arybase);
+ sv_setiv(sv, (IV)curcop->cop_arybase);
break;
case '|':
- sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 );
+ sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 );
break;
case ',':
sv_setpvn(sv,ofs,ofslen);
break;
case '!':
#ifdef VMS
- sv_setnv(sv,(double)((errno == EVMSERR) ? vaxc$errno : errno));
+ sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno));
sv_setpv(sv, errno ? Strerror(errno) : "");
#else
{
int saveerrno = errno;
- sv_setnv(sv,(double)errno);
+ sv_setnv(sv, (double)errno);
#ifdef OS2
if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc));
else
SvNOK_on(sv); /* what a wonderful hack! */
break;
case '<':
- sv_setiv(sv,(I32)uid);
+ sv_setiv(sv, (IV)uid);
break;
case '>':
- sv_setiv(sv,(I32)euid);
+ sv_setiv(sv, (IV)euid);
break;
case '(':
+ sv_setiv(sv, (IV)gid);
s = buf;
(void)sprintf(s,"%d",(int)gid);
goto add_groups;
case ')':
+ sv_setiv(sv, (IV)egid);
s = buf;
(void)sprintf(s,"%d",(int)egid);
add_groups:
while (*s) s++;
#ifdef HAS_GETGROUPS
-#ifndef NGROUPS
-#define NGROUPS 32
-#endif
{
Groups_t gary[NGROUPS];
i = getgroups(NGROUPS,gary);
while (--i >= 0) {
- (void)sprintf(s," %ld", (long)gary[i]);
+ (void)sprintf(s," %d", (int)gary[i]);
while (*s) s++;
}
}
#endif
sv_setpv(sv,buf);
+ SvIOK_on(sv); /* what a wonderful hack! */
break;
case '*':
break;
{
register char *s;
char *ptr;
- STRLEN len;
+ STRLEN len, klen;
I32 i;
+
s = SvPV(sv,len);
- ptr = (mg->mg_len == HEf_SVKEY) ? SvPV((SV*)mg->mg_ptr, na) : mg->mg_ptr;
+ ptr = MgPV(mg,klen);
my_setenv(ptr, s);
+
#ifdef DYNAMIC_ENV_FETCH
/* We just undefd an environment var. Is a replacement */
/* waiting in the wings? */
if (!len) {
- HE *envhe;
- if (envhe = hv_fetch_ent(GvHVn(envgv),HeSVKEY((HE*)(mg->mg_ptr)),FALSE,0))
- s = SvPV(HeVAL(envhe),len);
+ SV **valp;
+ if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE)))
+ s = SvPV(*valp, len);
}
#endif
+
+#if !defined(OS2) && !defined(AMIGAOS) && !defined(_WIN32)
/* And you'll never guess what the dog had */
/* in its mouth... */
if (tainting) {
- if (s && strEQ(ptr,"PATH")) {
+ MgTAINTEDDIR_off(mg);
+#ifdef VMS
+ if (s && klen == 8 && strEQ(ptr, "DCL$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) {
- s = cpytill(tokenbuf,s,strend,':',&i);
+ struct stat st;
+ s = cpytill(tokenbuf, s, strend, ':', &i);
s++;
if (*tokenbuf != '/'
- || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) )
+ || (Stat(tokenbuf, &st) == 0 && (st.st_mode & 2)) ) {
MgTAINTEDDIR_on(mg);
+ return 0;
+ }
}
}
}
+#endif /* neither OS2 nor AMIGAOS nor _WIN32 */
+
return 0;
}
SV* sv;
MAGIC* mg;
{
- my_setenv(((mg->mg_len == HEf_SVKEY) ?
- SvPV((SV*)mg->mg_ptr, na) : mg->mg_ptr),Nullch);
+ my_setenv(MgPV(mg,na),Nullch);
return 0;
}
-#ifdef HAS_SIGACTION
-/* set up reliable signal() clone */
-
-typedef void (*Sigfunc) _((int));
-
-static
-Sigfunc rsignal(signo,handler)
-int signo;
-Sigfunc handler;
-{
- struct sigaction act,oact;
-
- act.sa_handler = handler;
- sigemptyset(&act.sa_mask);
- act.sa_flags = 0;
-#ifdef SA_RESTART
- act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
-#endif
- if (sigaction(signo, &act, &oact) < 0)
- return(SIG_ERR);
- else
- return(oact.sa_handler);
-}
-
-#else
-
-/* ah well, so much for reliability */
-
-#define rsignal(x,y) signal(x,y)
-
-#endif
-
-static sig_trapped;
-static
-Signal_t
-sig_trap(signo)
-int signo;
-{
- sig_trapped++;
-}
int
magic_getsig(sv,mg)
SV* sv;
{
I32 i;
/* Are we fetching a signal entry? */
- i = whichsig(mg->mg_ptr);
+ i = whichsig(MgPV(mg,na));
if (i) {
if(psig_ptr[i])
sv_setsv(sv,psig_ptr[i]);
else {
- void (*origsig) _((int));
- /* get signal state without losing signals */
- sig_trapped=0;
- origsig = rsignal(i,sig_trap);
- rsignal(i,origsig);
- if(sig_trapped)
- kill(getpid(),i);
+ Sighandler_t sigstate = rsignal_state(i);
+
/* cache state so we don't fetch it again */
- if(origsig == SIG_IGN)
+ if(sigstate == SIG_IGN)
sv_setpv(sv,"IGNORE");
else
sv_setsv(sv,&sv_undef);
{
I32 i;
/* Are we clearing a signal entry? */
- i = whichsig(mg->mg_ptr);
+ i = whichsig(MgPV(mg,na));
if (i) {
if(psig_ptr[i]) {
SvREFCNT_dec(psig_ptr[i]);
I32 i;
SV** svp;
- s = (mg->mg_len == HEf_SVKEY) ? SvPV((SV*)mg->mg_ptr, na) : mg->mg_ptr;
+ s = MgPV(mg,na);
if (*s == '_') {
if (strEQ(s,"__DIE__"))
svp = &diehook;
warn("No such signal: SIG%s", s);
return 0;
}
- if(psig_ptr[i])
- SvREFCNT_dec(psig_ptr[i]);
+ SvREFCNT_dec(psig_name[i]);
+ SvREFCNT_dec(psig_ptr[i]);
psig_ptr[i] = SvREFCNT_inc(sv);
- if(psig_name[i])
- SvREFCNT_dec(psig_name[i]);
- psig_name[i] = newSVpv(mg->mg_ptr,strlen(mg->mg_ptr));
SvTEMP_off(sv); /* Make sure it doesn't go away on us */
+ psig_name[i] = newSVpv(s, strlen(s));
SvREADONLY_on(psig_name[i]);
}
if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) {
if (i)
- (void)rsignal(i,sighandler);
+ (void)rsignal(i, sighandler);
else
*svp = SvREFCNT_inc(sv);
return 0;
s = SvPV_force(sv,na);
if (strEQ(s,"IGNORE")) {
if (i)
- (void)rsignal(i,SIG_IGN);
+ (void)rsignal(i, SIG_IGN);
else
*svp = 0;
}
else if (strEQ(s,"DEFAULT") || !*s) {
if (i)
- (void)rsignal(i,SIG_DFL);
+ (void)rsignal(i, SIG_DFL);
else
*svp = 0;
}
else {
- if(hints & HINT_STRICT_REFS)
- die(no_symref,s,"a subroutine");
+ /*
+ * 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,'\'')) {
sprintf(tokenbuf, "main::%s",s);
sv_setpv(sv,tokenbuf);
}
if (i)
- (void)rsignal(i,sighandler);
+ (void)rsignal(i, sighandler);
else
*svp = SvREFCNT_inc(sv);
}
}
#endif /* OVERLOAD */
+int
+magic_setnkeys(sv,mg)
+SV* sv;
+MAGIC* mg;
+{
+ if (LvTARG(sv)) {
+ hv_ksplit((HV*)LvTARG(sv), SvIV(sv));
+ LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */
+ }
+ return 0;
+}
+
static int
magic_methpack(sv,mg,meth)
SV* sv;
gv = DBline;
i = SvTRUE(sv);
- svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE);
+ svp = av_fetch(GvAV(gv),
+ atoi(MgPV(mg,na)), FALSE);
if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp)))
o->op_private = i;
else
else if (pos > len)
pos = len;
mg->mg_len = pos;
+ mg->mg_flags &= ~MGf_MINMATCH;
return 0;
}
SV* sv;
MAGIC* mg;
{
- gv_efullname(sv,((GV*)sv));/* a gv value, be nice */
+ 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;
}
if (GvGP(sv))
gp_free((GV*)sv);
GvGP(sv) = gp_ref(GvGP(gv));
- if (!GvAV(gv))
- gv_AVadd(gv);
- if (!GvHV(gv))
- gv_HVadd(gv);
- if (!GvIOp(gv))
- GvIOp(gv) = newIO();
return 0;
}
SV* sv;
MAGIC* mg;
{
- if (mg->mg_len & 1)
- tainted = TRUE;
- else if (mg->mg_len & 2 && mg->mg_obj == sv) /* kludge */
- tainted = TRUE;
+ TAINT_IF((mg->mg_len & 1) ||
+ (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */
return 0;
}
}
int
+magic_getdefelem(sv,mg)
+SV* sv;
+MAGIC* mg;
+{
+ SV *targ = Nullsv;
+ if (LvTARGLEN(sv)) {
+ if (mg->mg_obj) {
+ HV* hv = (HV*)LvTARG(sv);
+ HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0);
+ if (he)
+ targ = HeVAL(he);
+ }
+ else {
+ AV* av = (AV*)LvTARG(sv);
+ if ((I32)LvTARGOFF(sv) <= AvFILL(av))
+ targ = AvARRAY(av)[LvTARGOFF(sv)];
+ }
+ if (targ && targ != &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 : &sv_undef);
+ return 0;
+}
+
+int
+magic_setdefelem(sv,mg)
+SV* sv;
+MAGIC* mg;
+{
+ if (LvTARGLEN(sv))
+ vivify_defelem(sv);
+ if (LvTARG(sv)) {
+ sv_setsv(LvTARG(sv), sv);
+ SvSETMAGIC(LvTARG(sv));
+ }
+ return 0;
+}
+
+int
+magic_freedefelem(sv,mg)
+SV* sv;
+MAGIC* mg;
+{
+ SvREFCNT_dec(LvTARG(sv));
+ return 0;
+}
+
+void
+vivify_defelem(sv)
+SV* sv;
+{
+ MAGIC* mg;
+ SV* value;
+
+ if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y')))
+ return;
+ if (mg->mg_obj) {
+ HV* hv = (HV*)LvTARG(sv);
+ HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0);
+ if (!he || (value = HeVAL(he)) == &sv_undef)
+ croak(no_helem, SvPV(mg->mg_obj, na));
+ }
+ 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) == &sv_undef)
+ croak(no_aelem, (I32)LvTARGOFF(sv));
+ }
+ }
+ 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
magic_setmglob(sv,mg)
SV* sv;
MAGIC* mg;
}
int
+magic_setfm(sv,mg)
+SV* sv;
+MAGIC* mg;
+{
+ sv_unmagic(sv, 'f');
+ SvCOMPILED_off(sv);
+ return 0;
+}
+
+int
magic_setuvar(sv,mg)
SV* sv;
MAGIC* mg;
return 0;
}
+#ifdef USE_LOCALE_COLLATE
+int
+magic_setcollxfrm(sv,mg)
+SV* sv;
+MAGIC* mg;
+{
+ /*
+ * René 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
magic_set(sv,mg)
SV* sv;
#ifdef VMS
set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
#else
- SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),4); /* will anyone ever use this? */
+ /* will anyone ever use this? */
+ SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4);
#endif
break;
case '\006': /* ^F */
IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
break;
case '|':
- IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH;
- if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) {
- IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH;
+ {
+ IO *io = GvIOp(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 '*':
case '\\':
if (ors)
Safefree(ors);
- ors = savepv(SvPV(sv,orslen));
+ if (SvOK(sv) || SvGMAGICAL(sv))
+ ors = savepv(SvPV(sv,orslen));
+ else {
+ ors = Nullch;
+ orslen = 0;
+ }
break;
case ',':
if (ofs)
compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
break;
case '?':
- statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+#ifdef COMPLEX_STATUS
+ if (localizing == 2) {
+ statusvalue = LvTARGOFF(sv);
+ 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) : sv_2iv(sv),SvIV(sv) == EVMSERR ? 4 : vaxc$errno); /* will anyone ever use this? */
+ SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),
+ (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno);
break;
case '<':
uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
tainting |= (uid && (euid != uid || egid != gid));
break;
case ')':
+#ifdef HAS_SETGROUPS
+ {
+ char *p = SvPV(sv, na);
+ Groups_t gary[NGROUPS];
+
+ SET_NUMERIC_STANDARD();
+ while (isSPACE(*p))
+ ++p;
+ egid = I_V(atof(p));
+ for (i = 0; i < NGROUPS; ++i) {
+ while (*p && !isSPACE(*p))
+ ++p;
+ while (isSPACE(*p))
+ ++p;
+ if (!*p)
+ break;
+ gary[i] = I_V(atof(p));
+ }
+ if (i)
+ (void)setgroups(i, gary);
+ }
+#else /* HAS_SETGROUPS */
egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
+#endif /* HAS_SETGROUPS */
if (delaymagic) {
delaymagic |= DM_EGID;
break; /* don't do magic till later */
if (origargv[i] == s + 1)
s += strlen(++s); /* this one is ok too */
}
- if (origenviron[0] == s + 1) { /* can grab env area too? */
+ /* can grab env area too? */
+ if (origenviron && origenviron[0] == s + 1) {
my_setenv("NoNeSuCh", Nullch);
/* force copy of environment */
for (i = 0; origenviron[i]; i++)
SV *sv;
CV *cv;
AV *oldstack;
-
- if(!psig_ptr[sig])
- die("Signal SIG%s received, but no signal handler set.\n",
- sig_name[sig]);
+
+ if (!psig_ptr[sig])
+ die("Signal SIG%s received, but no signal handler set.\n",
+ sig_name[sig]);
cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE);
if (!cv || !CvROOT(cv)) {
if(psig_name[sig])
sv = SvREFCNT_inc(psig_name[sig]);
else {
- sv = sv_newmortal();
- sv_setpv(sv,sig_name[sig]);
+ sv = sv_newmortal();
+ sv_setpv(sv,sig_name[sig]);
}
PUSHMARK(sp);
PUSHs(sv);
projects / p5sagit/p5-mst-13.2.git / blobdiff