[hackers] [ubase] Simplify skipping "." and ".." in switch_root || sin

[git]

commit bed72cf4090767585724ef77fc7efa978c88bd6d
Author: sin <s...@2f30.org>
Date:   Mon Apr 14 11:32:30 2014 +0100

    Simplify skipping "." and ".." in switch_root

diff --git a/switch_root.c b/switch_root.c
index 388ccd4..cac24d6 100644
--- a/switch_root.c
+++ b/switch_root.c
@@ -28,9 +28,8 @@ delete_content(const char *dir, dev_t curdevice)
                if (d) {
                        for(; (dent = readdir(d)) ;) {
                                /* skip ".." and "." */
-                               if (dent->d_name[0] == '.'
-                                && ((dent->d_name[1] == '.' && dent->d_name[2] 
== 0)
-                                    || (dent->d_name[1] == 0)))
+                               if (strcmp(dent->d_name, ".") == 0 ||
+                                   strcmp(dent->d_name, "..") == 0)
                                        continue;
 
                                /* build path and dive deeper */