-/* crypto/mem_clr.c -*- mode:C; c-file-style: "eay" -*- */
+/* crypto/mem_clr.c */
/*
* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL project
* 2002.
{
unsigned char *p = ptr;
size_t loop = len, ctr = cleanse_ctr;
+
+ if (ptr == NULL)
+ return;
+
while (loop--) {
*(p++) = (unsigned char)ctr;
ctr += (17 + ((size_t)p & 0xF));