system and taintedness

[p5sagit/p5-mst-13.2.git] / universal.c

diff --git a/universal.c b/universal.c
index 8b20443..868fe55 100644 (file)
--- a/universal.c
+++ b/universal.c
@@ -132,9 +132,9 @@ Perl_sv_derived_from(pTHX_ SV *sv, const char *name)
 
 #include "XSUB.h"
 
-void XS_UNIVERSAL_isa(pTHXo_ CV *cv);
-void XS_UNIVERSAL_can(pTHXo_ CV *cv);
-void XS_UNIVERSAL_VERSION(pTHXo_ CV *cv);
+void XS_UNIVERSAL_isa(pTHX_ CV *cv);
+void XS_UNIVERSAL_can(pTHX_ CV *cv);
+void XS_UNIVERSAL_VERSION(pTHX_ CV *cv);
 XS(XS_utf8_valid);
 XS(XS_utf8_encode);
 XS(XS_utf8_decode);
@@ -142,6 +142,7 @@ XS(XS_utf8_upgrade);
 XS(XS_utf8_downgrade);
 XS(XS_utf8_unicode_to_native);
 XS(XS_utf8_native_to_unicode);
+XS(XS_access_readonly);
 
 void
 Perl_boot_core_UNIVERSAL(pTHX)
@@ -158,6 +159,7 @@ Perl_boot_core_UNIVERSAL(pTHX)
     newXS("utf8::downgrade", XS_utf8_downgrade, file);
     newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file);
     newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file);
+    newXSproto("access::readonly",XS_access_readonly, file, "\\[$%@];$");
 }
 
 
@@ -303,10 +305,9 @@ XS(XS_UNIVERSAL_VERSION)
            sv_setnv(req, n);
        }
 
-       if (SvNV(req) > SvNV(sv)) {
+       if (SvNV(req) > SvNV(sv))
            Perl_croak(aTHX_ "%s version %s required--this is only version %s",
-                      HvNAME(pkg), SvPV_nolen(req), SvPV_nolen(sv,len));
-       }
+                      HvNAME(pkg), SvPV_nolen(req), SvPV_nolen(sv));
     }
 
 finish:
@@ -426,4 +427,22 @@ XS(XS_utf8_unicode_to_native)
  XSRETURN(1);
 }
 
+XS(XS_access_readonly)
+{
+    dXSARGS;
+    SV *sv = SvRV(ST(0));
+    IV old = SvREADONLY(sv);
+    if (items == 2) {
+       if (SvTRUE(ST(1))) {
+           SvREADONLY_on(sv);
+       }
+       else {
+           SvREADONLY_off(sv);
+       }
+    }
+    if (old)
+       XSRETURN_YES;
+    else
+       XSRETURN_NO;
+}