-/* $RCSfile: hash.c,v $$Revision: 4.1 $$Date: 92/08/07 18:21:48 $
+/* mg.c
*
- * Copyright (c) 1993, 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.
*
- * $Log: hash.c,v $
+ */
+
+/*
+ * "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"
#include "perl.h"
+/* XXX If this causes problems, set i_unistd=undef in the hint file. */
+#ifdef I_UNISTD
+# 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.
+ */
+
+struct magic_state {
+ SV* mgs_sv;
+ U32 mgs_flags;
+};
+typedef struct magic_state MGS;
+
+static void restore_magic _((void *p));
+
+static void
+save_magic(MGS *mgs, SV *sv)
+{
+ assert(SvMAGICAL(sv));
+
+ 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;
+}
+
+static void
+restore_magic(void *p)
+{
+ MGS* mgs = (MGS*)p;
+ SV* sv = mgs->mgs_sv;
+
+ 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);
+ }
+}
+
void
-mg_magical(sv)
-SV* sv;
+mg_magical(SV *sv)
{
MAGIC* mg;
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
MGVTBL* vtbl = mg->mg_virtual;
if (vtbl) {
- if (vtbl->svt_get)
+ if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP))
SvGMAGICAL_on(sv);
if (vtbl->svt_set)
SvSMAGICAL_on(sv);
}
int
-mg_get(sv)
-SV* sv;
+mg_get(SV *sv)
{
+ MGS mgs;
MAGIC* mg;
- U32 savemagic = SvMAGICAL(sv);
+ MAGIC** mgp;
+ int mgp_valid = 0;
- SvMAGICAL_off(sv);
- SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
+ ENTER;
+ save_magic(&mgs, sv);
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
+ mgp = &SvMAGIC(sv);
+ while ((mg = *mgp) != 0) {
MGVTBL* vtbl = mg->mg_virtual;
- if (vtbl && vtbl->svt_get)
+ 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;
+ }
+ /* 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 */
}
- SvFLAGS(sv) |= savemagic;
- assert(SvGMAGICAL(sv));
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
-
+ LEAVE;
return 0;
}
int
-mg_set(sv)
-SV* sv;
+mg_set(SV *sv)
{
+ MGS mgs;
MAGIC* mg;
MAGIC* nextmg;
- U32 savemagic = SvMAGICAL(sv);
- SvMAGICAL_off(sv);
+ ENTER;
+ 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;
+ }
if (vtbl && vtbl->svt_set)
(*vtbl->svt_set)(sv, mg);
}
- if (SvMAGIC(sv)) {
- SvFLAGS(sv) |= savemagic;
- if (SvGMAGICAL(sv))
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
- }
-
+ LEAVE;
return 0;
}
U32
-mg_len(sv)
-SV* sv;
+mg_len(SV *sv)
{
MAGIC* mg;
- char *s;
+ char *junk;
STRLEN len;
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
MGVTBL* vtbl = mg->mg_virtual;
if (vtbl && vtbl->svt_len) {
- U32 savemagic = SvMAGICAL(sv);
-
- SvMAGICAL_off(sv);
- SvFLAGS(sv) |= (SvFLAGS(sv)&(SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
+ MGS mgs;
+ ENTER;
+ save_magic(&mgs, sv);
+ /* omit MGf_GSKIP -- not changed here */
len = (*vtbl->svt_len)(sv, mg);
+ LEAVE;
+ return len;
+ }
+ }
- SvFLAGS(sv) |= savemagic;
- if (SvGMAGICAL(sv))
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
+ junk = SvPV(sv, len);
+ return len;
+}
+I32
+mg_size(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) {
+ MGS mgs;
+ ENTER;
+ /* omit MGf_GSKIP -- not changed here */
+ len = (*vtbl->svt_len)(sv, mg);
+ LEAVE;
return len;
}
}
- s = SvPV(sv, len);
- return len;
+ switch(SvTYPE(sv)) {
+ case SVt_PVAV:
+ len = AvFILLp((AV *) sv); /* Fallback to non-tied array */
+ return len;
+ case SVt_PVHV:
+ /* FIXME */
+ default:
+ croak("Size magic not implemented");
+ break;
+ }
+ return 0;
}
int
-mg_clear(sv)
-SV* sv;
+mg_clear(SV *sv)
{
+ MGS mgs;
MAGIC* mg;
- U32 savemagic = SvMAGICAL(sv);
- SvMAGICAL_off(sv);
- SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
+ ENTER;
+ save_magic(&mgs, 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)
(*vtbl->svt_clear)(sv, mg);
}
- SvFLAGS(sv) |= savemagic;
- if (SvGMAGICAL(sv))
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
-
+ LEAVE;
return 0;
}
MAGIC*
-#ifndef STANDARD_C
-mg_find(sv, type)
-SV* sv;
-char type;
-#else
-mg_find(SV *sv, char type)
-#endif /* STANDARD_C */
+mg_find(SV *sv, int type)
{
MAGIC* mg;
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
}
int
-mg_copy(sv, nsv, key, klen)
-SV* sv;
-SV* nsv;
-char *key;
-STRLEN klen;
+mg_copy(SV *sv, SV *nsv, 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_obj, tolower(mg->mg_type), key, klen);
+ sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen);
count++;
}
}
}
int
-mg_free(sv)
-SV* sv;
+mg_free(SV *sv)
{
MAGIC* mg;
MAGIC* moremagic;
if (vtbl && vtbl->svt_free)
(*vtbl->svt_free)(sv, mg);
if (mg->mg_ptr && mg->mg_type != 'g')
- Safefree(mg->mg_ptr);
+ 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);
#endif
U32
-magic_len(sv, mg)
-SV *sv;
-MAGIC *mg;
+magic_len(SV *sv, MAGIC *mg)
{
+ dTHR;
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]) ) {
- i = curpm->op_pmregexp->endp[paren] - s;
+ if (paren <= rx->nparens &&
+ (s = rx->startp[paren]) &&
+ (t = rx->endp[paren]))
+ {
+ i = t - s;
if (i >= 0)
return i;
- else
- return 0;
}
- else
- return 0;
}
- break;
+ return 0;
case '+':
- if (curpm) {
- paren = curpm->op_pmregexp->lastparen;
- goto getparen;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ paren = rx->lastparen;
+ if (paren)
+ goto getparen;
}
- break;
+ return 0;
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;
- else
- return 0;
}
- else
- return 0;
}
- break;
+ 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;
}
- else
- return 0;
}
- break;
+ return 0;
case ',':
return (STRLEN)ofslen;
case '\\':
}
int
-magic_get(sv, mg)
-SV *sv;
-MAGIC *mg;
+magic_get(SV *sv, MAGIC *mg)
{
+ dTHR;
register I32 paren;
register char *s;
register I32 i;
+ register REGEXP *rx;
+ char *t;
switch (*mg->mg_ptr) {
+ case '\001': /* ^A */
+ 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 <descrip.h>
+# include <starlet.h>
+ char msg[255];
+ $DESCRIPTOR(msgdsc,msg);
+ sv_setnv(sv,(double) vaxc$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
+ sv_setpv(sv,"");
+ }
+#else
+#ifdef OS2
+ if (!(_emx_env & 0x200)) { /* Under DOS */
+ sv_setnv(sv, (double)errno);
+ sv_setpv(sv, errno ? Strerror(errno) : "");
+ } else {
+ if (errno != errno_isOS2)
+ Perl_rc = _syserrno();
+ sv_setnv(sv, (double)Perl_rc);
+ sv_setpv(sv, os2error(Perl_rc));
+ }
+#else
+#ifdef WIN32
+ {
+ DWORD dwErr = GetLastError();
+ sv_setnv(sv, (double)dwErr);
+ if (dwErr)
+ win32_str_os_error(sv, dwErr);
+ else
+ sv_setpv(sv, "");
+ SetLastError(dwErr);
+ }
+#else
+ sv_setnv(sv, (double)errno);
+ sv_setpv(sv, errno ? Strerror(errno) : "");
+#endif
+#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, (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);
break;
case '\020': /* ^P */
- sv_setiv(sv,(I32)perldb);
+ sv_setiv(sv, (IV)perldb);
+ break;
+ case '\023': /* ^S */
+ {
+ dTHR;
+ if (lex_state != LEX_NOTPARSING)
+ SvOK_off(sv);
+ else if (in_eval)
+ sv_setiv(sv, 1);
+ else
+ sv_setiv(sv, 0);
+ }
break;
case '\024': /* ^T */
- sv_setiv(sv,(I32)basetime);
+#ifdef BIG_TIME
+ sv_setnv(sv, basetime);
+#else
+ 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) {
- paren = atoi(GvENAME(mg->mg_obj));
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ /*
+ * 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 (curpm->op_pmregexp &&
- paren <= curpm->op_pmregexp->nparens &&
- (s = curpm->op_pmregexp->startp[paren]) ) {
- i = curpm->op_pmregexp->endp[paren] - s;
- if (i >= 0)
+ if (paren <= rx->nparens &&
+ (s = rx->startp[paren]) &&
+ (t = rx->endp[paren]))
+ {
+ i = t - s;
+ getrx:
+ if (i >= 0) {
+ bool was_tainted;
+ if (tainting) {
+ was_tainted = tainted;
+ tainted = FALSE;
+ }
sv_setpvn(sv,s,i);
- else
- sv_setsv(sv,&sv_undef);
+ if (tainting)
+ tainted = was_tainted || RX_MATCH_TAINTED(rx);
+ break;
+ }
}
- else
- sv_setsv(sv,&sv_undef);
}
+ sv_setsv(sv,&sv_undef);
break;
case '+':
- if (curpm) {
- paren = curpm->op_pmregexp->lastparen;
- goto getparen;
+ 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);
- else
- sv_setpvn(sv,"",0);
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if ((s = rx->subbeg) && rx->startp[0]) {
+ i = rx->startp[0] - s;
+ goto getrx;
}
- else
- sv_setpvn(sv,"",0);
}
+ 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);
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if (rx->subend && (s = rx->endp[0])) {
+ i = rx->subend - s;
+ goto getrx;
}
- else
- sv_setpvn(sv,"",0);
}
+ sv_setsv(sv,&sv_undef);
break;
case '.':
#ifndef lint
- if (last_in_gv && GvIO(last_in_gv)) {
- sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv)));
+ if (GvIO(last_in_gv)) {
+ sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv)));
}
#endif
break;
case '?':
- sv_setiv(sv,(I32)statusvalue);
+ {
+ dTHR;
+ sv_setiv(sv, (IV)STATUS_CURRENT);
+#ifdef COMPLEX_STATUS
+ LvTARGOFF(sv) = statusvalue;
+ LvTARGLEN(sv) = statusvalue_vms;
+#endif
+ }
break;
case '^':
- s = IoTOP_NAME(GvIO(defoutgv));
+ s = IoTOP_NAME(GvIOp(defoutgv));
if (s)
sv_setpv(sv,s);
else {
}
break;
case '~':
- s = IoFMT_NAME(GvIO(defoutgv));
+ s = IoFMT_NAME(GvIOp(defoutgv));
if (!s)
s = GvENAME(defoutgv);
sv_setpv(sv,s);
break;
#ifndef lint
case '=':
- sv_setiv(sv,(I32)IoPAGE_LEN(GvIO(defoutgv)));
+ sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv)));
break;
case '-':
- sv_setiv(sv,(I32)IoLINES_LEFT(GvIO(defoutgv)));
+ sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv)));
break;
case '%':
- sv_setiv(sv,(I32)IoPAGE(GvIO(defoutgv)));
+ sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv)));
break;
#endif
case ':':
case '/':
break;
case '[':
- sv_setiv(sv,(I32)arybase);
+ WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase));
break;
case '|':
- if (!GvIO(defoutgv))
- GvIO(defoutgv) = newIO();
- sv_setiv(sv, (IoFLAGS(GvIO(defoutgv)) & IOf_FLUSH) != 0 );
+ sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 );
break;
case ',':
sv_setpvn(sv,ofs,ofslen);
sv_setpv(sv,ofmt);
break;
case '!':
- sv_setnv(sv,(double)errno);
+#ifdef VMS
+ sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno));
sv_setpv(sv, errno ? Strerror(errno) : "");
+#else
+ {
+ int saveerrno = errno;
+ sv_setnv(sv, (double)errno);
+#ifdef OS2
+ if (errno == errno_isOS2) 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,(I32)uid);
+ sv_setiv(sv, (IV)uid);
break;
case '>':
- sv_setiv(sv,(I32)euid);
+ sv_setiv(sv, (IV)euid);
break;
case '(':
- s = buf;
- (void)sprintf(s,"%d",(int)gid);
+ sv_setiv(sv, (IV)gid);
+ sv_setpvf(sv, "%Vd", (IV)gid);
goto add_groups;
case ')':
- s = buf;
- (void)sprintf(s,"%d",(int)egid);
+ sv_setiv(sv, (IV)egid);
+ sv_setpvf(sv, "%Vd", (IV)egid);
add_groups:
- while (*s) s++;
#ifdef HAS_GETGROUPS
-#ifndef NGROUPS
-#define NGROUPS 32
-#endif
{
- GROUPSTYPE gary[NGROUPS];
-
+ Groups_t gary[NGROUPS];
i = getgroups(NGROUPS,gary);
- while (--i >= 0) {
- (void)sprintf(s," %ld", (long)gary[i]);
- while (*s) s++;
- }
+ while (--i >= 0)
+ sv_catpvf(sv, " %Vd", (IV)gary[i]);
}
#endif
- sv_setpv(sv,buf);
+ SvIOK_on(sv); /* what a wonderful hack! */
break;
case '*':
break;
case '0':
break;
+#ifdef USE_THREADS
+ case '@':
+ sv_setsv(sv, thr->errsv);
+ break;
+#endif /* USE_THREADS */
}
+ return 0;
}
int
-magic_getuvar(sv, mg)
-SV *sv;
-MAGIC *mg;
+magic_getuvar(SV *sv, MAGIC *mg)
{
struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
}
int
-magic_setenv(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setenv(SV *sv, MAGIC *mg)
{
register char *s;
- U32 i;
- s = SvPV(sv,na);
- my_setenv(mg->mg_ptr,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(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 (tainting) {
- if (s && strEQ(mg->mg_ptr,"PATH")) {
- char *strend = SvEND(sv);
+ 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);
+ char tmpbuf[256];
+ struct stat st;
+ s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf,
+ s, strend, ':', &i);
s++;
- if (*tokenbuf != '/'
- || (stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) )
+ if (i >= sizeof tmpbuf /* too long -- assume the worst */
+ || *tmpbuf != '/'
+ || (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
-magic_clearenv(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_clearenv(SV *sv, MAGIC *mg)
{
- my_setenv(mg->mg_ptr,Nullch);
+ my_setenv(MgPV(mg,na),Nullch);
return 0;
}
int
-magic_setsig(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_set_all_env(SV *sv, MAGIC *mg)
{
- register char *s;
- I32 i;
- s = SvPV(sv,na);
- i = whichsig(mg->mg_ptr); /* ...no, a brick */
- if (!i && (dowarn || strEQ(mg->mg_ptr,"ALARM")))
- warn("No such signal: SIG%s", mg->mg_ptr);
- if (strEQ(s,"IGNORE"))
-#ifndef lint
- (void)signal(i,SIG_IGN);
+#if defined(VMS)
+ die("Can't make list assignment to %%ENV on this system");
#else
- ;
+ dTHR;
+ if (localizing) {
+ HE* entry;
+ 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), na));
+ }
+ }
#endif
- else if (strEQ(s,"DEFAULT") || !*s)
- (void)signal(i,SIG_DFL);
- else {
- (void)signal(i,sighandler);
- if (!strchr(s,':') && !strchr(s,'\'')) {
- sprintf(tokenbuf, "main::%s",s);
- sv_setpv(sv,tokenbuf);
+ return 0;
+}
+
+int
+magic_clear_all_env(SV *sv, MAGIC *mg)
+{
+#if defined(VMS)
+ die("Can't make list assignment to %%ENV on this system");
+#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 += strlen(end+1)+1;
}
+ else if ((len = strlen(cur)))
+ cur += len+1;
}
+ FreeEnvironmentStrings(envv);
+#else
+ I32 i;
+
+ if (environ == origenviron)
+ New(901, environ, 1, char*);
+ else
+ for (i = 0; environ[i]; i++)
+ Safefree(environ[i]);
+ environ[0] = Nullch;
+
+#endif
+#endif
return 0;
}
int
-magic_setisa(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getsig(SV *sv, MAGIC *mg)
{
- sub_generation++;
+ I32 i;
+ /* Are we fetching a signal entry? */
+ i = whichsig(MgPV(mg,na));
+ if (i) {
+ if(psig_ptr[i])
+ sv_setsv(sv,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,&sv_undef);
+ psig_ptr[i] = SvREFCNT_inc(sv);
+ SvTEMP_off(sv);
+ }
+ }
+ return 0;
+}
+int
+magic_clearsig(SV *sv, MAGIC *mg)
+{
+ I32 i;
+ /* Are we clearing a signal entry? */
+ i = whichsig(MgPV(mg,na));
+ if (i) {
+ if(psig_ptr[i]) {
+ SvREFCNT_dec(psig_ptr[i]);
+ psig_ptr[i]=0;
+ }
+ if(psig_name[i]) {
+ SvREFCNT_dec(psig_name[i]);
+ psig_name[i]=0;
+ }
+ }
return 0;
}
int
-magic_getpack(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setsig(SV *sv, MAGIC *mg)
{
- SV* rv = mg->mg_obj;
- HV* stash = SvSTASH(SvRV(rv));
- GV* gv = gv_fetchmethod(stash, "fetch");
- dSP;
- BINOP myop;
+ dTHR;
+ register char *s;
+ I32 i;
+ SV** svp;
+
+ s = MgPV(mg,na);
+ if (*s == '_') {
+ if (strEQ(s,"__DIE__"))
+ svp = &diehook;
+ else if (strEQ(s,"__WARN__"))
+ svp = &warnhook;
+ else if (strEQ(s,"__PARSE__"))
+ svp = &parsehook;
+ else
+ croak("No such hook: %s", s);
+ i = 0;
+ if (*svp) {
+ SvREFCNT_dec(*svp);
+ *svp = 0;
+ }
+ }
+ else {
+ i = whichsig(s); /* ...no, a brick */
+ if (!i) {
+ if (dowarn || strEQ(s,"ALARM"))
+ warn("No such signal: SIG%s", s);
+ return 0;
+ }
+ SvREFCNT_dec(psig_name[i]);
+ SvREFCNT_dec(psig_ptr[i]);
+ psig_ptr[i] = SvREFCNT_inc(sv);
+ 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, sighandlerp);
+ else
+ *svp = SvREFCNT_inc(sv);
+ return 0;
+ }
+ s = SvPV_force(sv,na);
+ 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_setpv(sv, form("main::%s", s));
+ if (i)
+ (void)rsignal(i, sighandlerp);
+ else
+ *svp = SvREFCNT_inc(sv);
+ }
+ return 0;
+}
+
+int
+magic_setisa(SV *sv, MAGIC *mg)
+{
+ HV *stash;
+ SV **svp;
+ I32 fill;
+ HV *basefields = Nullhv;
+ GV **gvp;
+ GV *gv;
+ HE *he;
+ static char *FIELDS = "FIELDS";
+
+ sub_generation++;
+
+ if (mg->mg_type == 'i')
+ return 0; /* Ignore lower-case version of the magic */
- if (!gv || !GvCV(gv)) {
- croak("No fetch method for magical variable in package \"%s\"",
- HvNAME(stash));
+ stash = GvSTASH(mg->mg_obj);
+ svp = AvARRAY((AV*)sv);
+
+ /* NOTE: No support for tied ISA */
+ for (fill = AvFILLp((AV*)sv); fill >= 0; fill--, svp++) {
+ HV *basestash = gv_stashsv(*svp, FALSE);
+
+ if (!basestash) {
+ if (dowarn)
+ warn("No such package \"%_\" in @ISA assignment", *svp);
+ continue;
+ }
+ gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE);
+ if (gvp && *gvp && GvHV(*gvp)) {
+ if (basefields)
+ croak("Can't multiply inherit %%FIELDS");
+ basefields = GvHV(*gvp);
+ }
}
- Zero(&myop, 1, BINOP);
- myop.op_last = (OP *) &myop;
- myop.op_next = Nullop;
- myop.op_flags = OPf_STACKED;
- ENTER;
- SAVESPTR(op);
- op = (OP *) &myop;
- PUTBACK;
- pp_pushmark();
+ if (!basefields)
+ return 0;
+
+ gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE);
+ if (!isGV(gv))
+ gv_init(gv, stash, FIELDS, 6, TRUE);
+ if (!GvHV(gv))
+ GvHV(gv) = newHV();
+ if (HvKEYS(GvHV(gv)))
+ croak("Inherited %%FIELDS can't override existing %%FIELDS");
- EXTEND(sp, 4);
- PUSHs(gv);
- PUSHs(rv);
- if (mg->mg_ptr)
- PUSHs(sv_mortalcopy(newSVpv(mg->mg_ptr, mg->mg_len)));
- else if (mg->mg_len >= 0)
- PUSHs(sv_mortalcopy(newSViv(mg->mg_len)));
- PUTBACK;
+ hv_iterinit(GvHV(gv));
+ while ((he = hv_iternext(basefields)))
+ hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he));
- if (op = pp_entersubr())
- run();
- LEAVE;
- SPAGAIN;
+ return 0;
+}
- sv_setsv(sv, POPs);
- PUTBACK;
+#ifdef OVERLOAD
+
+int
+magic_setamagic(SV *sv, MAGIC *mg)
+{
+ /* HV_badAMAGIC_on(Sv_STASH(sv)); */
+ amagic_generation++;
return 0;
}
+#endif /* OVERLOAD */
int
-magic_setpack(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setnkeys(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_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val)
{
- SV* rv = mg->mg_obj;
- HV* stash = SvSTASH(SvRV(rv));
- GV* gv = gv_fetchmethod(stash, "store");
dSP;
- BINOP myop;
- if (!gv || !GvCV(gv)) {
- croak("No store method for magical variable in package \"%s\"",
- HvNAME(stash));
+ PUSHMARK(sp);
+ EXTEND(sp, n);
+ PUSHs(mg->mg_obj);
+ if (n > 1) {
+ if (mg->mg_ptr) {
+ if (mg->mg_len >= 0)
+ PUSHs(sv_2mortal(newSVpv(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)));
+ }
}
- Zero(&myop, 1, BINOP);
- myop.op_last = (OP *) &myop;
- myop.op_next = Nullop;
- myop.op_flags = OPf_STACKED;
+ if (n > 2) {
+ PUSHs(val);
+ }
+ PUTBACK;
+
+ return perl_call_method(meth, flags);
+}
+
+static int
+magic_methpack(SV *sv, MAGIC *mg, char *meth)
+{
+ dSP;
ENTER;
- SAVESPTR(op);
- op = (OP *) &myop;
- PUTBACK;
- pp_pushmark();
+ SAVETMPS;
- EXTEND(sp, 4);
- PUSHs(gv);
- PUSHs(rv);
- if (mg->mg_ptr)
- PUSHs(sv_mortalcopy(newSVpv(mg->mg_ptr, mg->mg_len)));
- else if (mg->mg_len >= 0)
- PUSHs(sv_mortalcopy(newSViv(mg->mg_len)));
- PUSHs(sv);
- PUTBACK;
+ if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) {
+ sv_setsv(sv, *stack_sp--);
+ }
- if (op = pp_entersubr())
- run();
+ FREETMPS;
LEAVE;
- SPAGAIN;
+ return 0;
+}
- POPs;
- PUTBACK;
+int
+magic_getpack(SV *sv, MAGIC *mg)
+{
+ magic_methpack(sv,mg,"FETCH");
+ if (mg->mg_ptr)
+ mg->mg_flags |= MGf_GSKIP;
+ return 0;
+}
+int
+magic_setpack(SV *sv, MAGIC *mg)
+{
+ ENTER;
+ magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv);
+ LEAVE;
return 0;
}
int
-magic_clearpack(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_clearpack(SV *sv, MAGIC *mg)
{
- SV* rv = mg->mg_obj;
- HV* stash = SvSTASH(SvRV(rv));
- GV* gv = gv_fetchmethod(stash, "delete");
- dSP;
- BINOP myop;
-
- if (!gv || !GvCV(gv)) {
- croak("No delete method for magical variable in package \"%s\"",
- HvNAME(stash));
- }
- Zero(&myop, 1, BINOP);
- myop.op_last = (OP *) &myop;
- myop.op_next = Nullop;
- myop.op_flags = OPf_STACKED;
+ return magic_methpack(sv,mg,"DELETE");
+}
- ENTER;
- SAVESPTR(op);
- op = (OP *) &myop;
- PUTBACK;
- pp_pushmark();
- EXTEND(sp, 4);
- PUSHs(gv);
- PUSHs(rv);
- if (mg->mg_ptr)
- PUSHs(sv_mortalcopy(newSVpv(mg->mg_ptr, mg->mg_len)));
- else
- PUSHs(sv_mortalcopy(newSViv(mg->mg_len)));
- PUTBACK;
+U32
+magic_sizepack(SV *sv, MAGIC *mg)
+{
+ dTHR;
+ U32 retval = 0;
- if (op = pp_entersubr())
- run();
+ ENTER;
+ SAVETMPS;
+ if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) {
+ sv = *stack_sp--;
+ retval = (U32) SvIV(sv)-1;
+ }
+ FREETMPS;
LEAVE;
- SPAGAIN;
+ return retval;
+}
- sv_setsv(sv, POPs);
- PUTBACK;
+int magic_wipepack(SV *sv, MAGIC *mg)
+{
+ dSP;
+ PUSHMARK(sp);
+ XPUSHs(mg->mg_obj);
+ PUTBACK;
+ ENTER;
+ perl_call_method("CLEAR", G_SCALAR|G_DISCARD);
+ LEAVE;
return 0;
}
int
-magic_nextpack(sv,mg,key)
-SV* sv;
-MAGIC* mg;
-SV* key;
+magic_nextpack(SV *sv, MAGIC *mg, SV *key)
{
- SV* rv = mg->mg_obj;
- HV* stash = SvSTASH(SvRV(rv));
- GV* gv = gv_fetchmethod(stash, SvOK(key) ? "nextkey" : "firstkey");
dSP;
- BINOP myop;
-
- if (!gv || !GvCV(gv)) {
- croak("No fetch method for magical variable in package \"%s\"",
- HvNAME(stash));
- }
- Zero(&myop, 1, BINOP);
- myop.op_last = (OP *) &myop;
- myop.op_next = Nullop;
- myop.op_flags = OPf_STACKED;
+ char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY";
ENTER;
- SAVESPTR(op);
- op = (OP *) &myop;
- PUTBACK;
- pp_pushmark();
-
- EXTEND(sp, 4);
- PUSHs(gv);
- PUSHs(rv);
+ SAVETMPS;
+ PUSHMARK(sp);
+ EXTEND(sp, 2);
+ PUSHs(mg->mg_obj);
if (SvOK(key))
PUSHs(key);
PUTBACK;
- if (op = pp_entersubr())
- run();
- LEAVE;
- SPAGAIN;
-
- sv_setsv(key, POPs);
- PUTBACK;
+ if (perl_call_method(meth, G_SCALAR))
+ sv_setsv(key, *stack_sp--);
+ FREETMPS;
+ LEAVE;
return 0;
}
int
-magic_setdbline(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_existspack(SV *sv, MAGIC *mg)
{
+ return magic_methpack(sv,mg,"EXISTS");
+}
+
+int
+magic_setdbline(SV *sv, MAGIC *mg)
+{
+ dTHR;
OP *o;
I32 i;
GV* gv;
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
}
int
-magic_getarylen(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getarylen(SV *sv, MAGIC *mg)
+{
+ dTHR;
+ sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase);
+ return 0;
+}
+
+int
+magic_setarylen(SV *sv, MAGIC *mg)
{
- sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + arybase);
+ dTHR;
+ av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase);
return 0;
}
int
-magic_setarylen(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getpos(SV *sv, MAGIC *mg)
{
- av_fill((AV*)mg->mg_obj, (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) - arybase);
+ SV* lsv = LvTARG(sv);
+
+ if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) {
+ mg = mg_find(lsv, 'g');
+ if (mg && mg->mg_len >= 0) {
+ dTHR;
+ sv_setiv(sv, mg->mg_len + curcop->cop_arybase);
+ return 0;
+ }
+ }
+ (void)SvOK_off(sv);
return 0;
}
int
-magic_getglob(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setpos(SV *sv, MAGIC *mg)
{
- gv_efullname(sv,((GV*)sv));/* a gv value, be nice */
+ SV* lsv = LvTARG(sv);
+ SSize_t pos;
+ STRLEN len;
+
+ 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);
+
+ WITH_THR(pos = SvIV(sv) - curcop->cop_arybase);
+ if (pos < 0) {
+ pos += len;
+ if (pos < 0)
+ pos = 0;
+ }
+ else if (pos > len)
+ pos = len;
+ mg->mg_len = pos;
+ mg->mg_flags &= ~MGf_MINMATCH;
+
+ return 0;
+}
+
+int
+magic_getglob(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
-magic_setglob(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setglob(SV *sv, MAGIC *mg)
{
register char *s;
GV* gv;
if (sv == (SV*)gv)
return 0;
if (GvGP(sv))
- gp_free(sv);
+ gp_free((GV*)sv);
GvGP(sv) = gp_ref(GvGP(gv));
- if (!GvAV(gv))
- gv_AVadd(gv);
- if (!GvHV(gv))
- gv_HVadd(gv);
- if (!GvIO(gv))
- GvIO(gv) = newIO();
return 0;
}
int
-magic_setsubstr(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setsubstr(SV *sv, MAGIC *mg)
{
STRLEN len;
char *tmps = SvPV(sv,len);
}
int
-magic_gettaint(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_gettaint(SV *sv, MAGIC *mg)
{
- tainted = TRUE;
+ dTHR;
+ TAINT_IF((mg->mg_len & 1) ||
+ (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */
return 0;
}
int
-magic_settaint(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_settaint(SV *sv, MAGIC *mg)
{
- if (!tainted)
- sv_unmagic(sv, 't');
+ dTHR;
+ if (localizing) {
+ if (localizing == 1)
+ mg->mg_len <<= 1;
+ else
+ mg->mg_len >>= 1;
+ }
+ else if (tainted)
+ mg->mg_len |= 1;
+ else
+ mg->mg_len &= ~1;
return 0;
}
int
-magic_setvec(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setvec(SV *sv, MAGIC *mg)
{
do_vecset(sv); /* XXX slurp this routine */
return 0;
}
int
-magic_setmglob(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getdefelem(SV *sv, MAGIC *mg)
{
- mg->mg_ptr = 0;
- mg->mg_len = 0;
+ 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) {
+ dTHR; /* just for SvREFCNT_dec */
+ /* 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_setbm(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setdefelem(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 *sv, MAGIC *mg)
+{
+ SvREFCNT_dec(LvTARG(sv));
+ return 0;
+}
+
+void
+vivify_defelem(SV *sv)
+{
+ dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/
+ 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));
+ }
+ }
+ (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
+magic_setmglob(SV *sv, MAGIC *mg)
+{
+ mg->mg_len = -1;
+ SvSCREAM_off(sv);
+ return 0;
+}
+
+int
+magic_setbm(SV *sv, MAGIC *mg)
{
sv_unmagic(sv, 'B');
SvVALID_off(sv);
}
int
-magic_setuvar(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setfm(SV *sv, MAGIC *mg)
+{
+ sv_unmagic(sv, 'f');
+ SvCOMPILED_off(sv);
+ return 0;
+}
+
+int
+magic_setuvar(SV *sv, MAGIC *mg)
{
struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
}
int
-magic_set(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_freeregexp(SV *sv, MAGIC *mg)
+{
+ regexp *re = (regexp *)mg->mg_obj;
+ ReREFCNT_dec(re);
+ return 0;
+}
+
+#ifdef USE_LOCALE_COLLATE
+int
+magic_setcollxfrm(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 *sv, MAGIC *mg)
{
+ dTHR;
register char *s;
I32 i;
STRLEN len;
switch (*mg->mg_ptr) {
+ case '\001': /* ^A */
+ sv_setsv(bodytarget, sv);
+ break;
case '\004': /* ^D */
debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000;
DEBUG_x(dump_all());
break;
+ case '\005': /* ^E */
+#ifdef VMS
+ set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+#else
+#ifdef WIN32
+ SetLastError( SvIV(sv) );
+#else
+ /* will anyone ever use this? */
+ SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4);
+#endif
+#endif
+ break;
case '\006': /* ^F */
maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
break;
+ case '\010': /* ^H */
+ hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
+ break;
case '\t': /* ^I */
if (inplace)
Safefree(inplace);
if (SvOK(sv))
- inplace = savestr(SvPV(sv,na));
+ inplace = savepv(SvPV(sv,na));
else
inplace = Nullch;
break;
+ case '\017': /* ^O */
+ if (osname)
+ Safefree(osname);
+ if (SvOK(sv))
+ osname = savepv(SvPV(sv,na));
+ else
+ osname = Nullch;
+ break;
case '\020': /* ^P */
- i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- if (i != perldb) {
- if (perldb)
- oldlastpm = curpm;
- else
- curpm = oldlastpm;
- }
- perldb = i;
+ perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
break;
case '\024': /* ^T */
+#ifdef BIG_TIME
+ basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv));
+#else
basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+#endif
break;
case '\027': /* ^W */
dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
break;
case '.':
- if (localizing)
- save_sptr((SV**)&last_in_gv);
- else if (SvOK(sv))
- IoLINES(GvIO(last_in_gv)) = (long)SvIV(sv);
+ if (localizing) {
+ if (localizing == 1)
+ save_sptr((SV**)&last_in_gv);
+ }
+ else if (SvOK(sv) && GvIO(last_in_gv))
+ IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv);
break;
case '^':
- Safefree(IoTOP_NAME(GvIO(defoutgv)));
- IoTOP_NAME(GvIO(defoutgv)) = s = savestr(SvPV(sv,na));
- IoTOP_GV(GvIO(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
+ Safefree(IoTOP_NAME(GvIOp(defoutgv)));
+ IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na));
+ IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
break;
case '~':
- Safefree(IoFMT_NAME(GvIO(defoutgv)));
- IoFMT_NAME(GvIO(defoutgv)) = s = savestr(SvPV(sv,na));
- IoFMT_GV(GvIO(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
+ Safefree(IoFMT_NAME(GvIOp(defoutgv)));
+ IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na));
+ IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO);
break;
case '=':
- IoPAGE_LEN(GvIO(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+ IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
break;
case '-':
- IoLINES_LEFT(GvIO(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
- if (IoLINES_LEFT(GvIO(defoutgv)) < 0L)
- IoLINES_LEFT(GvIO(defoutgv)) = 0L;
+ IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+ if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L)
+ IoLINES_LEFT(GvIOp(defoutgv)) = 0L;
break;
case '%':
- IoPAGE(GvIO(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+ IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
break;
case '|':
- if (!GvIO(defoutgv))
- GvIO(defoutgv) = newIO();
- IoFLAGS(GvIO(defoutgv)) &= ~IOf_FLUSH;
- if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) {
- IoFLAGS(GvIO(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 '*':
multiline = (i != 0);
break;
case '/':
- if (SvPOK(sv)) {
- nrs = rs = SvPV(sv,rslen);
- nrslen = rslen;
- if (rspara = !rslen) {
- nrs = rs = "\n\n";
- nrslen = rslen = 2;
- }
- nrschar = rschar = rs[rslen - 1];
- }
- else {
- nrschar = rschar = 0777; /* fake a non-existent char */
- nrslen = rslen = 1;
- }
+ SvREFCNT_dec(nrs);
+ nrs = newSVsv(sv);
+ SvREFCNT_dec(rs);
+ rs = SvREFCNT_inc(nrs);
break;
case '\\':
if (ors)
Safefree(ors);
- ors = savestr(SvPV(sv,orslen));
+ if (SvOK(sv) || SvGMAGICAL(sv))
+ ors = savepv(SvPV(sv,orslen));
+ else {
+ ors = Nullch;
+ orslen = 0;
+ }
break;
case ',':
if (ofs)
Safefree(ofs);
- ofs = savestr(SvPV(sv, ofslen));
+ ofs = savepv(SvPV(sv, ofslen));
break;
case '#':
if (ofmt)
Safefree(ofmt);
- ofmt = savestr(SvPV(sv,na));
+ ofmt = savepv(SvPV(sv,na));
break;
case '[':
- arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
+ compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
break;
case '?':
- statusvalue = U_S(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 '!':
- errno = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); /* will anyone ever use this? */
+ SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0,
+ (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno);
break;
case '<':
uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
#else
#ifdef HAS_SETREUID
(void)setreuid((Uid_t)uid, (Uid_t)-1);
+#else
#ifdef HAS_SETRESUID
(void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1);
#else
if (uid == euid) /* special case $< = $> */
(void)setuid(uid);
- else
+ else {
+ uid = (I32)getuid();
croak("setruid() not implemented");
+ }
#endif
#endif
#endif
- uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- tainting |= (euid != uid || egid != gid);
+ uid = (I32)getuid();
+ tainting |= (uid && (euid != uid || egid != gid));
break;
case '>':
euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
#else
if (euid == uid) /* special case $> = $< */
setuid(euid);
- else
+ else {
+ euid = (I32)geteuid();
croak("seteuid() not implemented");
+ }
#endif
#endif
#endif
euid = (I32)geteuid();
- tainting |= (euid != uid || egid != gid);
+ tainting |= (uid && (euid != uid || egid != gid));
break;
case '(':
gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
#else
if (gid == egid) /* special case $( = $) */
(void)setgid(gid);
- else
+ else {
+ gid = (I32)getgid();
croak("setrgid() not implemented");
+ }
#endif
#endif
#endif
gid = (I32)getgid();
- tainting |= (euid != uid || egid != gid);
+ 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 */
#else
if (egid == gid) /* special case $) = $( */
(void)setgid(egid);
- else
+ else {
+ egid = (I32)getegid();
croak("setegid() not implemented");
+ }
#endif
#endif
#endif
egid = (I32)getegid();
- tainting |= (euid != uid || egid != gid);
+ tainting |= (uid && (euid != uid || egid != gid));
break;
case ':':
- chopset = SvPV(sv,na);
+ chopset = SvPV_force(sv,na);
break;
case '0':
if (!origalen) {
s += strlen(s);
/* See if all the arguments are contiguous in memory */
for (i = 1; i < origargc; i++) {
- if (origargv[i] == s + 1)
+ if (origargv[i] == s + 1
+#ifdef OS2
+ || origargv[i] == s + 2
+#endif
+ )
s += strlen(++s); /* this one is ok too */
+ else
+ break;
}
- if (origenviron[0] == s + 1) { /* can grab env area too? */
- my_setenv("NoNeSuCh", Nullch);
+ /* can grab env area too? */
+ if (origenviron && (origenviron[0] == s + 1
+#ifdef OS2
+ || (origenviron[0] == s + 9 && (s += 8))
+#endif
+ )) {
+ my_setenv("NoNe SuCh", Nullch);
/* force copy of environment */
for (i = 0; origenviron[i]; i++)
if (origenviron[i] == s + 1)
s += strlen(++s);
+ else
+ break;
}
origalen = s - origargv[0];
}
- s = SvPV(sv,len);
+ s = SvPV_force(sv,len);
i = len;
if (i >= origalen) {
i = origalen;
- SvCUR_set(sv, i);
- *SvEND(sv) = '\0';
+ /* don't allow system to limit $0 seen by script */
+ /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */
Copy(s, origargv[0], i, char);
+ s = origargv[0]+i;
+ *s = '\0';
}
else {
Copy(s, origargv[0], i, char);
origargv[i] = Nullch;
}
break;
+#ifdef USE_THREADS
+ case '@':
+ sv_setsv(thr->errsv, sv);
+ break;
+#endif /* USE_THREADS */
}
return 0;
}
+#ifdef USE_THREADS
+int
+magic_mutexfree(SV *sv, MAGIC *mg)
+{
+ dTHR;
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n",
+ (unsigned long)thr, (unsigned long)sv);)
+ if (MgOWNER(mg))
+ croak("panic: magic_mutexfree");
+ MUTEX_DESTROY(MgMUTEXP(mg));
+ COND_DESTROY(MgCONDP(mg));
+ SvREFCNT_dec(sv);
+ return 0;
+}
+#endif /* USE_THREADS */
+
I32
-whichsig(sig)
-char *sig;
+whichsig(char *sig)
{
register char **sigv;
for (sigv = sig_name+1; *sigv; sigv++)
if (strEQ(sig,*sigv))
- return sigv - sig_name;
+ return sig_num[sigv - sig_name];
#ifdef SIGCLD
if (strEQ(sig,"CHLD"))
return SIGCLD;
return 0;
}
-VOIDRET
-sighandler(sig)
-I32 sig;
+static SV* sig_sv;
+
+static void
+unwind_handler_stack(void *p)
+{
+ dTHR;
+ U32 flags = *(U32*)p;
+
+ if (flags & 1)
+ savestack_ix -= 5; /* Unprotect save in progress. */
+ /* cxstack_ix-- Not needed, die already unwound it. */
+ if (flags & 64)
+ SvREFCNT_dec(sig_sv);
+}
+
+Signal_t
+sighandler(int sig)
{
dSP;
- GV *gv;
- SV *sv;
- CV *cv;
- CONTEXT *cx;
+ GV *gv = Nullgv;
+ HV *st;
+ SV *sv, *tSv = Sv;
+ CV *cv = Nullcv;
AV *oldstack;
- I32 hasargs = 1;
- I32 items = 1;
- I32 gimme = G_SCALAR;
-
-#ifdef OS2 /* or anybody else who requires SIG_ACK */
- signal(sig, SIG_ACK);
-#endif
-
- gv = gv_fetchpv(
- SvPVx(*hv_fetch(GvHVn(siggv),sig_name[sig],strlen(sig_name[sig]),
- TRUE), na), TRUE, SVt_PVCV);
- cv = GvCV(gv);
- if (!cv && *sig_name[sig] == 'C' && instr(sig_name[sig],"LD")) {
- if (sig_name[sig][1] == 'H')
- gv = gv_fetchpv(SvPVx(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE), na),
- TRUE, SVt_PVCV);
- else
- gv = gv_fetchpv(SvPVx(*hv_fetch(GvHVn(siggv),"CHLD",4,TRUE), na),
- TRUE, SVt_PVCV);
- cv = GvCV(gv); /* gag */
+ OP *myop = op;
+ U32 flags = 0;
+ I32 o_save_i = savestack_ix, type;
+ PERL_CONTEXT *cx;
+ XPV *tXpv = Xpv;
+
+ if (savestack_ix + 15 <= savestack_max)
+ flags |= 1;
+ if (cxstack_ix < cxstack_max - 2)
+ flags |= 2;
+ if (markstack_ptr < markstack_max - 2)
+ flags |= 4;
+ if (retstack_ix < retstack_max - 2)
+ flags |= 8;
+ if (scopestack_ix < scopestack_max - 3)
+ flags |= 16;
+
+ if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */
+ cxstack_ix++; /* Protect from overwrite. */
+ cx = &cxstack[cxstack_ix];
+ type = cx->cx_type; /* Can be during partial write. */
+ cx->cx_type = CXt_NULL; /* Make it safe for unwind. */
+ }
+ if (!psig_ptr[sig])
+ die("Signal SIG%s received, but no signal handler set.\n",
+ 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) {
+ savestack_ix += 5; /* Protect save in progress. */
+ o_save_i = savestack_ix;
+ SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags);
+ }
+ if (flags & 4)
+ markstack_ptr++; /* Protect mark. */
+ if (flags & 8) {
+ retstack_ix++;
+ retstack[retstack_ix] = NULL;
}
- if (!cv) {
+ if (flags & 16)
+ scopestack_ix += 1;
+ /* sv_2cv is too complicated, try a simpler variant first: */
+ if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig]))
+ || SvTYPE(cv) != SVt_PVCV)
+ cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE);
+
+ if (!cv || !CvROOT(cv)) {
if (dowarn)
warn("SIG%s handler \"%s\" not defined.\n",
- sig_name[sig], GvENAME(gv) );
- return;
+ sig_name[sig], (gv ? GvENAME(gv)
+ : ((cv && CvGV(cv))
+ ? GvENAME(CvGV(cv))
+ : "__ANON__")));
+ goto cleanup;
}
- oldstack = stack;
- SWITCHSTACK(stack, signalstack);
-
- sv = sv_newmortal();
- sv_setpv(sv,sig_name[sig]);
- PUSHs(sv);
-
- ENTER;
- SAVETMPS;
-
- push_return(op);
- push_return(0);
- PUSHBLOCK(cx, CXt_SUB, sp);
- PUSHSUB(cx);
- cx->blk_sub.savearray = GvAV(defgv);
- cx->blk_sub.argarray = av_fake(items, sp);
- SAVEFREESV(cx->blk_sub.argarray);
- GvAV(defgv) = cx->blk_sub.argarray;
- CvDEPTH(cv)++;
- if (CvDEPTH(cv) >= 2) {
- if (CvDEPTH(cv) == 100 && dowarn)
- warn("Deep recursion on subroutine \"%s\"",GvENAME(gv));
+ oldstack = curstack;
+ if (curstack != signalstack)
+ AvFILLp(signalstack) = 0;
+ SWITCHSTACK(curstack, signalstack);
+
+ if(psig_name[sig]) {
+ sv = SvREFCNT_inc(psig_name[sig]);
+ flags |= 64;
+ sig_sv = sv;
+ } else {
+ sv = sv_newmortal();
+ sv_setpv(sv,sig_name[sig]);
}
- op = CvSTART(cv);
+ PUSHMARK(sp);
+ PUSHs(sv);
PUTBACK;
- run(); /* Does the LEAVE for us. */
- SWITCHSTACK(signalstack, oldstack);
- op = pop_return();
+ perl_call_sv((SV*)cv, G_DISCARD);
+ SWITCHSTACK(signalstack, oldstack);
+cleanup:
+ if (flags & 1)
+ savestack_ix -= 8; /* Unprotect save in progress. */
+ if (flags & 2) {
+ cxstack[cxstack_ix].cx_type = type;
+ cxstack_ix -= 1;
+ }
+ if (flags & 4)
+ markstack_ptr--;
+ if (flags & 8)
+ retstack_ix--;
+ if (flags & 16)
+ scopestack_ix -= 1;
+ if (flags & 64)
+ SvREFCNT_dec(sv);
+ op = myop; /* Apparently not needed... */
+
+ Sv = tSv; /* Restore global temporaries. */
+ Xpv = tXpv;
return;
}
+
+
projects / p5sagit/p5-mst-13.2.git / blobdiff