Update format

1 files changed, 9 insertions, 0 deletions

diff --git a/src/util.c b/src/util.c
index ac178cc..d5ca902 100644
--- a/src/util.c
+++ b/src/util.c
@@ -216,3 +216,12 @@ void strfree(char **list)
 
     free(list);
 }
+
+bool iszero(const void *ptr, size_t size)
+{
+    for (size_t i = 0; i < size; i++) {
+        if (((const char *)ptr)[i] != 0)
+            return false;
+    }
+    return true;
+}