Initial code commit

common.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <unistd.h>
+#include <errno.h>
+
+#define COUNT(x) (sizeof(x)/sizeof(x[0]))
+
+static inline size_t str_cpy (char *dst, char *src, size_t n)
+{
+    if (!dst || !src)
+        return 0;
+
+    size_t i;
+
+    for (i=0; i<n && src[i]; i++)
+        dst[i] = src[i];
+
+    dst[i] = 0;
+
+    return i;
+}