util: virsecureerase: Introduce virSecureEraseString

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

src/libvirt_private.syms

@@ -3176,6 +3176,7 @@ virSecretLookupParseSecret;
 
 # util/virsecureerase.h
 virSecureErase;
+virSecureEraseString;
 
 
 # util/virsocket.h

src/util/virsecureerase.c

@@ -42,3 +42,16 @@ virSecureErase(void *ptr,
 
     memset(ptr, 0, size);
 }
+
+/**
+ * virSecureEraseString:
+ * @str: String to securely erase
+ */
+void
+virSecureEraseString(char *str)
+{
+    if (!str)
+        return;
+
+    virSecureErase(str, strlen(str));
+}

src/util/virsecureerase.h

@@ -23,3 +23,6 @@
 
 void
 virSecureErase(void *ptr, size_t size);
+
+void
+virSecureEraseString(char *str);