Explicitely cap the op_info parameter to 255

[perl/modules/Variable-Magic.git] / Magic.xs

diff --git a/Magic.xs b/Magic.xs
index 183bfbd7521bfe193b2085d9b299315df5db4ef8..edddac8a3574a85a7a7791d54eef1e3fbcf8a9fc 100644 (file)
--- a/Magic.xs
+++ b/Magic.xs
@@ -591,7 +591,7 @@ STATIC const MGWIZ *vmg_wizard_mgwiz(pTHX_ const SV *wiz) {
 
 STATIC const MAGIC *vmg_find(const SV *sv, const SV *wiz) {
  const MAGIC *mg, *moremagic;
- UV wid;
+ IV wid;
 
  if (SvTYPE(sv) < SVt_PVMG)
   return NULL;
@@ -600,7 +600,7 @@ STATIC const MAGIC *vmg_find(const SV *sv, const SV *wiz) {
  for (mg = SvMAGIC(sv); mg; mg = moremagic) {
   moremagic = mg->mg_moremagic;
   if (mg->mg_type == PERL_MAGIC_ext && mg->mg_private == SIG_WIZ) {
-   UV zid = vmg_wizard_id(mg->mg_ptr);
+   IV zid = vmg_wizard_id(mg->mg_ptr);
    if (zid == wid)
     return mg;
   }
@@ -757,7 +757,7 @@ STATIC UV vmg_dispell(pTHX_ SV *sv, const SV *wiz) {
  U32 uvars = 0;
 #endif /* VMG_UVAR */
  MAGIC *mg, *prevmagic, *moremagic = NULL;
- UV wid = vmg_wizard_id(wiz);
+ IV wid = vmg_wizard_id(wiz);
 
  if (SvTYPE(sv) < SVt_PVMG)
   return 0;
@@ -766,7 +766,7 @@ STATIC UV vmg_dispell(pTHX_ SV *sv, const SV *wiz) {
   moremagic = mg->mg_moremagic;
   if (mg->mg_type == PERL_MAGIC_ext && mg->mg_private == SIG_WIZ) {
    const MGWIZ *z   = vmg_wizard_mgwiz(mg->mg_ptr);
-   UV           zid = vmg_wizard_id(mg->mg_ptr);
+   IV           zid = vmg_wizard_id(mg->mg_ptr);
    if (zid == wid) {
 #if VMG_UVAR
     /* If the current has no uvar, short-circuit uvar deletion. */
@@ -1340,6 +1340,7 @@ SV *_wizard(...)
 PROTOTYPE: DISABLE
 PREINIT:
  I32 i = 0;
+ UV opinfo;
  MGWIZ *w;
  MGVTBL *t;
  SV *cb;
@@ -1365,10 +1366,13 @@ CODE:
  Newx(w, 1, MGWIZ);
 
  VMG_SET_CB(ST(i++), data);
+
  cb = ST(i++);
- w->opinfo = SvOK(cb) ? SvUV(cb) : 0;
+ opinfo = SvOK(cb) ? SvUV(cb) : 0;
+ w->opinfo = (U8) ((opinfo < 255) ? opinfo : 255);
  if (w->opinfo)
   vmg_op_info_init(w->opinfo);
+
  VMG_SET_SVT_CB(ST(i++), get);
  VMG_SET_SVT_CB(ST(i++), set);
  VMG_SET_SVT_CB(ST(i++), len);
@@ -1414,15 +1418,12 @@ PROTOTYPE: \[$@%&*]$@
 PREINIT:
  SV **args = NULL;
  I32 i = 0;
- SV *ret;
 CODE:
  if (items > 2) {
   i = items - 2;
   args = &ST(2);
  }
- ret = newSVuv(vmg_cast(SvRV(sv), vmg_wizard_validate(wiz), args, i));
- SvREFCNT_dec(args);
- RETVAL = ret;
+ RETVAL = newSVuv(vmg_cast(SvRV(sv), vmg_wizard_validate(wiz), args, i));
 OUTPUT:
  RETVAL