Last commit with db. Switching to makdown articles representation

include/file_op/file.h

@@ -1,3 +1,6 @@
+#ifndef _FILE_H
+#define _FILE_H
+
 #include <string.h>
 #include <stdlib.h>
 #include <sys/sendfile.h>
@@ -14,4 +17,6 @@ struct file_s
 
 char *gen_file_path(char *path);
 int send_file(int cli_fd, struct file_s *file);
-struct file_s *get_file_info(char *file_path);
+struct file_s *get_file_info(char *file_path);
+
+#endif

include/file_op/mime.h

@@ -1,3 +1,10 @@
+#ifndef _MIME_H
+#define _MIME_H
+
 #include <string.h>
 
-char *get_mime_type(char *file_path);
+#define DEFAULT_MIME_TYPE "application/octet-stream"
+
+char *get_mime_type(char *file_path);
+
+#endif