pp_open() could pass an uninitialized filename down to do_open9().

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

diff --git a/pp_sys.c b/pp_sys.c
index ba9e3bf..a95c43c 100644 (file)
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -508,7 +508,7 @@ PP(pp_open)
     djSP; dTARGET;
     GV *gv;
     SV *sv;
-    SV *name;
+    SV *name = Nullsv;
     I32 have_name = 0;
     char *tmps;
     STRLEN len;
@@ -3868,6 +3868,8 @@ PP(pp_system)
     }
     PerlProc__exit(-1);
 #else /* ! FORK or VMS or OS/2 */
+    PL_statusvalue = 0;
+    result = 0;
     if (PL_op->op_flags & OPf_STACKED) {
        SV *really = *++MARK;
        value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
@@ -3877,10 +3879,12 @@ PP(pp_system)
     else {
        value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
     }
+    if (PL_statusvalue == -1)  /* hint that value must be returned as is */
+       result = 1;
     STATUS_NATIVE_SET(value);
     do_execfree();
     SP = ORIGMARK;
-    PUSHi(STATUS_CURRENT);
+    PUSHi(result ? value : STATUS_CURRENT);
 #endif /* !FORK or VMS */
     RETURN;
 }