=for apidoc mg_localize
Copy some of the magic from an existing SV to new localized version of that
-SV. Container magic (eg C<%ENV>, C<$1>, C<tie>)
-gets copied, value magic doesn't (eg
+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 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. C<'local $x = $y'>),
+This typically means that assignment will soon follow (e.g. S<C<'local $x = $y'>>),
and that will handle the magic.
=cut
*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))) {
}
#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) {
}
}
}
-#endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */
+#endif /* neither OS2 nor WIN32 nor MSDOS */
return 0;
}
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--) {
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;
+ I32 i;
+#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
+}
+
int
Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
{
}
}
}
+#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 '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;
}
https://perl5.git.perl.org / perl5.git / blobdiff