diff --git a/sys/fs/fat/fat.c b/sys/fs/fat/fat.c
index 54db354..760641c 100644
--- a/sys/fs/fat/fat.c
+++ b/sys/fs/fat/fat.c
@@ -147,8 +147,10 @@
   else if ((fd->mode & 0x2) == 0x2) {
     if ((fd->mode & 0x8) == 0x8)
       _file = fl_fopen(file, "a");
-    else
+    else {
       _file = fl_fopen(file, "w");
+      kprintf("open for writing");
+    }
   }
   else
     kprintf("Invalid Mode?");
diff --git a/sys/include/sys/types.h b/sys/include/sys/types.h
index 70d5723..4360020 100644
--- a/sys/include/sys/types.h
+++ b/sys/include/sys/types.h
@@ -33,10 +33,10 @@
 #include <sys/select.h>
 
 #ifndef NULL
-#define NULL 0x0
+#define NULL ( (void *) 0)
 #endif
 
-typedef        __uintfptr_t    uintfptr_t;
+typedef __uintfptr_t uintfptr_t;
 
 typedef char *caddr_t;
 
@@ -115,7 +115,7 @@
 #endif
 
 typedef __ssize_t ssize_t;
-typedef char * caddr_t;
+typedef char *caddr_t;
 typedef __int64_t off_t;
 typedef __uint32_t vm_offset_t;
 
@@ -171,9 +171,8 @@
 /* Combine two `digits' to make a single two-digit number. */
 #define COMBINE(a, b) (((u_long)(a) << HALF_BITS) | (b))
 
-
 #ifndef _MODE_T_DECLARED
-typedef __mode_t        mode_t;         /* permissions */
+typedef __mode_t mode_t; /* permissions */
 #define _MODE_T_DECLARED
 #endif
 
diff --git a/sys/kernel/descrip.c b/sys/kernel/descrip.c
index 4b8892f..c7b41e6 100644
--- a/sys/kernel/descrip.c
+++ b/sys/kernel/descrip.c
@@ -346,6 +346,7 @@
 }
 
 int dup2(struct thread *td, u_int32_t from, u_int32_t to) {
+
   struct file *fp = 0x0;
   struct file *dup_fp = 0x0;
 
@@ -365,13 +366,10 @@
 
   memcpy(dup_fp, fp, sizeof(struct file));
 
-  kprintf("DUP2.0: %i:%i [0x%X:0x%X]", from, to, td->o_files[from], td->o_files[to]);
-
   td->o_files[to] = (void*) dup_fp;
 
   ((struct file*) td->o_files[from])->fd->dup++;
 
-  kprintf("DUP2.1: %i:%i <%i> [0x%X:0x%X]", from, to, ((struct file*) td->o_files[from])->fd->dup, td->o_files[from], td->o_files[to]);
   return (0x0);
 }