op.h: Restrict to core certain internal symbols

[perl5.git] / doio.c

diff --git a/doio.c b/doio.c
index df6e62c..439f2d0 100644 (file)
--- a/doio.c
+++ b/doio.c
@@ -3251,7 +3251,7 @@ Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp)
     else {
        STRLEN len;
 
-       const char *mbuf = SvPV_const(mstr, len);
+       const char *mbuf = SvPVbyte(mstr, len);
        const I32 n = ((I32)len > msize) ? msize : (I32)len;
        Copy(mbuf, shm + mpos, n, char);
        if (n < msize)