/*
=for apidoc mg_magical
-Turns on the magical status of an SV. See C<sv_magic>.
+Turns on the magical status of an SV. See C<L</sv_magic>>.
=cut
*/
=for apidoc mg_get
Do magic before a value is retrieved from the SV. The type of SV must
-be >= SVt_PVMG. See C<sv_magic>.
+be >= C<SVt_PVMG>. See C<L</sv_magic>>.
=cut
*/
/*
=for apidoc mg_set
-Do magic after a value is assigned to the SV. See C<sv_magic>.
+Do magic after a value is assigned to the SV. See C<L</sv_magic>>.
=cut
*/
=for apidoc mg_length
Reports on the SV's length in bytes, calling length magic if available,
-but does not set the UTF8 flag on the sv. It will fall back to 'get'
+but does not set the UTF8 flag on C<sv>. It will fall back to 'get'
magic if there is no 'length' magic, but with no indication as to
-whether it called 'get' magic. It assumes the sv is a PVMG or
-higher. Use sv_len() instead.
+whether it called 'get' magic. It assumes C<sv> is a C<PVMG> or
+higher. Use C<sv_len()> instead.
=cut
*/
/*
=for apidoc mg_clear
-Clear something magical that the SV represents. See C<sv_magic>.
+Clear something magical that the SV represents. See C<L</sv_magic>>.
=cut
*/
if (sv) {
MAGIC *mg;
- assert(!(SvTYPE(sv) == SVt_PVAV && AvPAD_NAMELIST(sv)));
-
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
if (mg->mg_type == type && (!flags || mg->mg_virtual == vtbl)) {
return mg;
/*
=for apidoc mg_find
-Finds the magic pointer for type matching the SV. See C<sv_magic>.
+Finds the magic pointer for C<type> matching the SV. See C<L</sv_magic>>.
=cut
*/
=for apidoc mg_findext
Finds the magic pointer of C<type> with the given C<vtbl> for the C<SV>. See
-C<sv_magicext>.
+C<L</sv_magicext>>.
=cut
*/
/*
=for apidoc mg_copy
-Copies the magic from one SV to another. See C<sv_magic>.
+Copies the magic from one SV to another. See C<L</sv_magic>>.
=cut
*/
=for apidoc mg_localize
Copy some of the magic from an existing SV to new localized version of that
-SV. Container magic (eg %ENV, $1, tie)
-gets copied, value magic doesn't (eg
-taint, pos).
+SV. Container magic (I<e.g.>, C<%ENV>, C<$1>, C<tie>)
+gets copied, value magic doesn't (I<e.g.>,
+C<taint>, C<pos>).
-If setmagic is false then no set magic will be called on the new (empty) SV.
-This typically means that assignment will soon follow (e.g. 'local $x = $y'),
+If C<setmagic> is false then no set magic will be called on the new (empty) SV.
+This typically means that assignment will soon follow (e.g. S<C<'local $x = $y'>>),
and that will handle the magic.
=cut
/*
=for apidoc mg_free
-Free any magic storage used by the SV. See C<sv_magic>.
+Free any magic storage used by the SV. See C<L</sv_magic>>.
=cut
*/
/*
=for apidoc Am|void|mg_free_type|SV *sv|int how
-Remove any magic of type I<how> from the SV I<sv>. See L</sv_magic>.
+Remove any magic of type C<how> from the SV C<sv>. See L</sv_magic>.
=cut
*/
* case we should turn on that flag. This didn't use to happen, and to
* avoid as many possible backward compatibility issues as possible, we
* don't turn on the flag unless we have to. So the flag stays off for
- * an entirely ASCII string. We assume that if the string looks like
- * UTF-8, it really is UTF-8: "text in any other encoding that uses
- * bytes with the high bit set is extremely unlikely to pass a UTF-8
- * validity test" (http://en.wikipedia.org/wiki/Charset_detection).
- * There is a potential that we will get it wrong however, especially
- * on short error message text. (If it turns out to be necessary, we
- * could also keep track if the current LC_MESSAGES locale is UTF-8) */
+ * an entirely invariant string. We assume that if the string looks
+ * like UTF-8, it really is UTF-8: "text in any other encoding that
+ * uses bytes with the high bit set is extremely unlikely to pass a
+ * UTF-8 validity test"
+ * (http://en.wikipedia.org/wiki/Charset_detection). There is a
+ * potential that we will get it wrong however, especially on short
+ * error message text. (If it turns out to be necessary, we could also
+ * keep track if the current LC_MESSAGES locale is UTF-8) */
if (! IN_BYTES /* respect 'use bytes' */
- && ! is_ascii_string((U8*) SvPVX_const(sv), SvCUR(sv))
+ && ! is_utf8_invariant_string((U8*) SvPVX_const(sv), SvCUR(sv))
&& is_utf8_string((U8*) SvPVX_const(sv), SvCUR(sv)))
{
SvUTF8_on(sv);
}
}
-SV*
-Perl__get_encoding(pTHX)
-{
- /* Returns the $^ENCODING or 'use encoding' in effect; NULL if none */
-
- return PL_encoding;
-}
-
#ifdef VMS
#include <descrip.h>
#include <starlet.h>
case '\005': /* ^E */
if (nextchar != '\0') {
if (strEQ(remaining, "NCODING"))
- sv_setsv(sv, _get_encoding());
+ sv_setsv(sv, NULL);
break;
}
*PL_compiling.cop_warnings);
}
}
+#ifdef WIN32
+ else if (strEQ(remaining, "IN32_SLOPPY_STAT")) {
+ sv_setiv(sv, w32_sloppystat);
+ }
+#endif
break;
case '+':
if (PL_curpm && (rx = PM_GETRE(PL_curpm))) {
sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv)));
break;
case ':':
- break;
case '/':
break;
case '[':
}
#endif
-#if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS)
+#if !defined(OS2) && !defined(WIN32) && !defined(MSDOS)
/* And you'll never guess what the dog had */
/* in its mouth... */
if (TAINTING_get) {
char tmpbuf[256];
Stat_t st;
I32 i;
-#ifdef VMS /* Hmm. How do we get $Config{path_sep} from C? */
- const char path_sep = '|';
+#ifdef __VMS /* Hmm. How do we get $Config{path_sep} from C? */
+ const char path_sep = PL_perllib_sep;
#else
const char path_sep = ':';
#endif
- s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf,
+ s = delimcpy_no_escape(tmpbuf, tmpbuf + sizeof tmpbuf,
s, strend, path_sep, &i);
s++;
if (i >= (I32)sizeof tmpbuf /* too long -- assume the worst */
-#ifdef VMS
- || !strchr(tmpbuf, ':') /* no colon thus no device name -- assume relative path */
+#ifdef __VMS
+ /* no colon thus no device name -- assume relative path */
+ || (PL_perllib_sep != ':' && !strchr(tmpbuf, ':'))
+ /* Using Unix separator, e.g. under bash, so act line Unix */
+ || (PL_perllib_sep == ':' && *tmpbuf != '/')
#else
|| *tmpbuf != '/' /* no starting slash -- assume relative path */
#endif
}
}
}
-#endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */
+#endif /* neither OS2 nor WIN32 nor MSDOS */
return 0;
}
#else
dTHX;
#endif
+#if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
#if defined(__cplusplus) && defined(__GNUC__)
/* g++ doesn't support PERL_UNUSED_DECL, so the sip and uap
* parameters would be warned about. */
PERL_UNUSED_ARG(sip);
PERL_UNUSED_ARG(uap);
#endif
+#endif
#ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS
(void) rsignal(sig, PL_csighandlerp);
if (PL_sig_ignoring[sig]) return;
The arguments themselves are any values following the C<flags> argument.
-Returns the SV (if any) returned by the method, or NULL on failure.
+Returns the SV (if any) returned by the method, or C<NULL> on failure.
=cut
if (flags & G_WRITING_TO_STDERR) {
SAVETMPS;
+ save_re_context();
SAVESPTR(PL_stderrgv);
PL_stderrgv = NULL;
}
PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
- EXTEND(SP, argc+1);
+ /* EXTEND() expects a signed argc; don't wrap when casting */
+ assert(argc <= I32_MAX);
+ EXTEND(SP, (I32)argc+1);
PUSHs(SvTIED_obj(sv, mg));
if (flags & G_UNDEF_FILL) {
while (argc--) {
SvREFCNT_inc_simple_NN(SvRV(sv)));
break;
case SVt_PVHV:
- hv_store_ent((HV *)mg->mg_obj, (SV *)mg->mg_ptr,
- SvREFCNT_inc_simple_NN(SvRV(sv)), 0);
+ (void)hv_store_ent((HV *)mg->mg_obj, (SV *)mg->mg_ptr,
+ SvREFCNT_inc_simple_NN(SvRV(sv)), 0);
}
if (mg->mg_flags & MGf_PERSIST)
NOOP; /* This sv is in use as an iterator var and will be reused,
return 0;
}
+static void
+S_set_dollarzero(pTHX_ SV *sv)
+ PERL_TSA_REQUIRES(PL_dollarzero_mutex)
+{
+#ifdef USE_ITHREADS
+ dVAR;
+#endif
+ const char *s;
+ STRLEN len;
+#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. */
+ if (PL_origalen != 1) {
+ s = SvPV_const(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);
+# 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
+ }
+#elif defined(__hpux) && defined(PSTAT_SETCMD)
+ if (PL_origalen != 1) {
+ union pstun un;
+ s = SvPV_const(sv, len);
+ un.pst_command = (char *)s;
+ pstat(PSTAT_SETCMD, un, len, 0, 0);
+ }
+#else
+ if (PL_origalen > 1) {
+ I32 i;
+ /* PL_origalen is set in perl_parse(). */
+ s = SvPV_force(sv,len);
+ if (len >= (STRLEN)PL_origalen-1) {
+ /* Longer than original, will be truncated. We assume that
+ * PL_origalen bytes are available. */
+ Copy(s, PL_origargv[0], PL_origalen-1, char);
+ }
+ else {
+ /* Shorter than original, will be padded. */
+#ifdef PERL_DARWIN
+ /* Special case for Mac OS X: see [perl #38868] */
+ const int pad = 0;
+#else
+ /* Is the space counterintuitive? Yes.
+ * (You were expecting \0?)
+ * Does it work? Seems to. (In Linux 2.4.20 at least.)
+ * --jhi */
+ const int pad = ' ';
+#endif
+ Copy(s, PL_origargv[0], len, char);
+ PL_origargv[0][len] = 0;
+ memset(PL_origargv[0] + len + 1,
+ pad, PL_origalen - len - 1);
+ }
+ PL_origargv[0][PL_origalen-1] = 0;
+ for (i = 1; i < PL_origargc; i++)
+ PL_origargv[i] = 0;
+#ifdef HAS_PRCTL_SET_NAME
+ /* Set the legacy process name in addition to the POSIX name on Linux */
+ if (prctl(PR_SET_NAME, (unsigned long)s, 0, 0, 0) != 0) {
+ /* diag_listed_as: SKIPME */
+ Perl_croak(aTHX_ "Can't set $0 with prctl(): %s", Strerror(errno));
+ }
+#endif
+ }
+#endif
+}
+
int
Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
{
#ifdef USE_ITHREADS
dVAR;
#endif
- const char *s;
I32 paren;
const REGEXP * rx;
I32 i;
case '\004': /* ^D */
#ifdef DEBUGGING
- s = SvPV_nolen_const(sv);
- PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG;
- if (DEBUG_x_TEST || DEBUG_B_TEST)
- dump_all_perl(!DEBUG_B_TEST);
+ {
+ const char *s = SvPV_nolen_const(sv);
+ PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG;
+ if (DEBUG_x_TEST || DEBUG_B_TEST)
+ dump_all_perl(!DEBUG_B_TEST);
+ }
#else
PL_debug = (SvIV(sv)) | DEBUG_TOP_FLAG;
#endif
# endif
#endif
}
- else if (strEQ(mg->mg_ptr+1, "NCODING")) {
- SvREFCNT_dec(PL_encoding);
- if (SvOK(sv) || SvGMAGICAL(sv)) {
- PL_encoding = newSVsv(sv);
- }
- else {
- PL_encoding = NULL;
- }
- }
+ else {
+ if (strEQ(mg->mg_ptr + 1, "NCODING") && SvOK(sv))
+ if (PL_localizing != 2) {
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "${^ENCODING} is no longer supported");
+ }
+ }
break;
case '\006': /* ^F */
PL_maxsysfd = SvIV(sv);
}
}
}
+#ifdef WIN32
+ else if (strEQ(mg->mg_ptr+1, "IN32_SLOPPY_STAT")) {
+ w32_sloppystat = (bool)sv_true(sv);
+ }
+#endif
break;
case '.':
if (PL_localizing) {
break;
case '^':
Safefree(IoTOP_NAME(GvIOp(PL_defoutgv)));
- s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv);
+ IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv);
IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO);
break;
case '~':
Safefree(IoFMT_NAME(GvIOp(PL_defoutgv)));
- s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv);
+ IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv);
IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO);
break;
case '=':
);
}
} else {
+ sv_setsv(sv, PL_rs);
/* diag_listed_as: Setting $/ to %s reference is forbidden */
Perl_croak(aTHX_ "Setting $/ to a%s %s reference is forbidden",
*reftype == 'A' ? "n" : "", reftype);
}
case ')':
{
+/* (hv) best guess: maybe we'll need configure probes to do a better job,
+ * but you can override it if you need to.
+ */
+#ifndef INVALID_GID
+#define INVALID_GID ((Gid_t)-1)
+#endif
/* XXX $) currently silently ignores failures */
Gid_t new_egid;
#ifdef HAS_SETGROUPS
const char *p = SvPV_const(sv, len);
Groups_t *gary = NULL;
const char* endptr;
+ UV uv;
#ifdef _SC_NGROUPS_MAX
int maxgrp = sysconf(_SC_NGROUPS_MAX);
while (isSPACE(*p))
++p;
- new_egid = (Gid_t)grok_atou(p, &endptr);
+ if (grok_atoUV(p, &uv, &endptr))
+ new_egid = (Gid_t)uv;
+ else {
+ new_egid = INVALID_GID;
+ endptr = NULL;
+ }
for (i = 0; i < maxgrp; ++i) {
if (endptr == NULL)
break;
Newx(gary, i + 1, Groups_t);
else
Renew(gary, i + 1, Groups_t);
- gary[i] = (Groups_t)grok_atou(p, &endptr);
+ if (grok_atoUV(p, &uv, &endptr))
+ gary[i] = (Groups_t)uv;
+ else {
+ gary[i] = INVALID_GID;
+ endptr = NULL;
+ }
}
if (i)
PERL_UNUSED_RESULT(setgroups(i, gary));
break;
case '0':
LOCK_DOLLARZERO_MUTEX;
-#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. */
- if (PL_origalen != 1) {
- s = SvPV_const(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);
-# 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
- }
-#elif defined(__hpux) && defined(PSTAT_SETCMD)
- if (PL_origalen != 1) {
- union pstun un;
- s = SvPV_const(sv, len);
- un.pst_command = (char *)s;
- pstat(PSTAT_SETCMD, un, len, 0, 0);
- }
-#else
- if (PL_origalen > 1) {
- /* PL_origalen is set in perl_parse(). */
- s = SvPV_force(sv,len);
- if (len >= (STRLEN)PL_origalen-1) {
- /* Longer than original, will be truncated. We assume that
- * PL_origalen bytes are available. */
- Copy(s, PL_origargv[0], PL_origalen-1, char);
- }
- else {
- /* Shorter than original, will be padded. */
-#ifdef PERL_DARWIN
- /* Special case for Mac OS X: see [perl #38868] */
- const int pad = 0;
-#else
- /* Is the space counterintuitive? Yes.
- * (You were expecting \0?)
- * Does it work? Seems to. (In Linux 2.4.20 at least.)
- * --jhi */
- const int pad = ' ';
-#endif
- Copy(s, PL_origargv[0], len, char);
- PL_origargv[0][len] = 0;
- memset(PL_origargv[0] + len + 1,
- pad, PL_origalen - len - 1);
- }
- PL_origargv[0][PL_origalen-1] = 0;
- for (i = 1; i < PL_origargc; i++)
- PL_origargv[i] = 0;
-#ifdef HAS_PRCTL_SET_NAME
- /* Set the legacy process name in addition to the POSIX name on Linux */
- if (prctl(PR_SET_NAME, (unsigned long)s, 0, 0, 0) != 0) {
- /* diag_listed_as: SKIPME */
- Perl_croak(aTHX_ "Can't set $0 with prctl(): %s", Strerror(errno));
- }
-#endif
- }
-#endif
+ S_set_dollarzero(aTHX_ sv);
UNLOCK_DOLLARZERO_MUTEX;
break;
}
if (hek)
Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL),
"SIG%s handler \"%"HEKf"\" not defined.\n",
- PL_sig_name[sig], hek);
+ PL_sig_name[sig], HEKfARG(hek));
/* diag_listed_as: SIG%s handler "%s" not defined */
else Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL),
"SIG%s handler \"__ANON__\" not defined.\n",
* addr, status, and band are defined by POSIX/SUSv3. */
(void)hv_stores(sih, "signo", newSViv(sip->si_signo));
(void)hv_stores(sih, "code", newSViv(sip->si_code));
-#if 0 /* XXX TODO: Configure scan for the existence of these, but even that does not help if the SA_SIGINFO is not implemented according to the spec. */
- hv_stores(sih, "errno", newSViv(sip->si_errno));
- hv_stores(sih, "status", newSViv(sip->si_status));
- hv_stores(sih, "uid", newSViv(sip->si_uid));
- hv_stores(sih, "pid", newSViv(sip->si_pid));
- hv_stores(sih, "addr", newSVuv(PTR2UV(sip->si_addr)));
- hv_stores(sih, "band", newSViv(sip->si_band));
+#ifdef HAS_SIGINFO_SI_ERRNO
+ (void)hv_stores(sih, "errno", newSViv(sip->si_errno));
+#endif
+#ifdef HAS_SIGINFO_SI_STATUS
+ (void)hv_stores(sih, "status", newSViv(sip->si_status));
+#endif
+#ifdef HAS_SIGINFO_SI_UID
+ {
+ SV *uid = newSV(0);
+ sv_setuid(uid, sip->si_uid);
+ (void)hv_stores(sih, "uid", uid);
+ }
+#endif
+#ifdef HAS_SIGINFO_SI_PID
+ (void)hv_stores(sih, "pid", newSViv(sip->si_pid));
+#endif
+#ifdef HAS_SIGINFO_SI_ADDR
+ (void)hv_stores(sih, "addr", newSVuv(PTR2UV(sip->si_addr)));
+#endif
+#ifdef HAS_SIGINFO_SI_BAND
+ (void)hv_stores(sih, "band", newSViv(sip->si_band));
#endif
EXTEND(SP, 2);
PUSHs(rv);
}
}
-cleanup:
+ cleanup:
/* pop any of SAVEFREESV, SAVEDESTRUCTOR_X and "save in progress" */
PL_savestack_ix = old_ss_ix;
if (flags & 8)
if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
SvTEMP_off(sv); /* if it's still magical, this value isn't temporary */
-#ifdef PERL_OLD_COPY_ON_WRITE
- /* While magic was saved (and off) sv_setsv may well have seen
- this SV as a prime candidate for COW. */
- if (SvIsCOW(sv))
- sv_force_normal_flags(sv, 0);
-#endif
if (mgs->mgs_flags)
SvFLAGS(sv) |= mgs->mgs_flags;
else
/*
=for apidoc magic_sethint
-Triggered by a store to %^H, records the key/value pair to
+Triggered by a store to C<%^H>, records the key/value pair to
C<PL_compiling.cop_hints_hash>. It is assumed that hints aren't storing
anything that would need a deep copy. Maybe we should warn if we find a
reference.
/*
=for apidoc magic_clearhint
-Triggered by a delete from %^H, records the key to
+Triggered by a delete from C<%^H>, records the key to
C<PL_compiling.cop_hints_hash>.
=cut
/*
=for apidoc magic_clearhints
-Triggered by clearing
%^H, resets C<PL_compiling.cop_hints_hash>.
+Triggered by clearing
C<%^H>, resets C<PL_compiling.cop_hints_hash>.
=cut
*/
}
/*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- *
* ex: set ts=8 sts=4 sw=4 et:
*/
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