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-rw-r--r--utils/tomcrypt/src/misc/zeromem.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/utils/tomcrypt/src/misc/zeromem.c b/utils/tomcrypt/src/misc/zeromem.c
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index 0000000000..dc81d9b1e2
--- /dev/null
+++ b/utils/tomcrypt/src/misc/zeromem.c
@@ -0,0 +1,32 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ */
+#include "tomcrypt.h"
+
+/**
+ @file zeromem.c
+ Zero a block of memory, Tom St Denis
+*/
+
+/**
+ Zero a block of memory
+ @param out The destination of the area to zero
+ @param outlen The length of the area to zero (octets)
+*/
+void zeromem(volatile void *out, size_t outlen)
+{
+ volatile char *mem = out;
+ LTC_ARGCHKVD(out != NULL);
+ while (outlen-- > 0) {
+ *mem++ = '\0';
+ }
+}
+
+/* ref: HEAD -> master, tag: v1.18.2 */
+/* git commit: 7e7eb695d581782f04b24dc444cbfde86af59853 */
+/* commit time: 2018-07-01 22:49:01 +0200 */