Add stage 2: C

src/2_c.c

@@ -0,0 +1,14 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+extern char* _1_assembly_func(void);
+
+char* _2_c_func() {
+	char * asm_buf = _1_assembly_func();
+	char * buf = malloc(22 + 16); 
+	memcpy(buf, asm_buf, 22);
+	strcat(buf, "\nHello from C.");
+
+	printf("%s", buf);
+	return buf;
+}