diff --git a/sys/include/sys/sysproto_posix.h b/sys/include/sys/sysproto_posix.h
index e14e374..36a0afa 100644
--- a/sys/include/sys/sysproto_posix.h
+++ b/sys/include/sys/sysproto_posix.h
@@ -807,6 +807,17 @@
 
 int sys_setrlimit(struct thread *, struct sys_setrlimit_args *);
 
+struct sys_dup2_args {
+    char from_l_[PADL_(u_int)];
+    u_int from;
+    char from_r_[PADR_(u_int)];
+    char to_l_[PADL_(u_int)];
+    u_int to;
+    char to_r_[PADR_(u_int)];
+};
+
+int sys_dup2(struct thread*, struct sys_dup2_args*);
+
 //Func Defs
 int sys_invalid(struct thread *, void *);
 int sys_exit(struct thread *, struct sys_exit_args *);
@@ -892,4 +903,6 @@
 
 int sys_pread(struct thread *td, struct sys_pread_args *);
 
+
+
 #endif /* END _SYS_SYSPROTO_POSIX_H_ */
diff --git a/sys/kernel/descrip.c b/sys/kernel/descrip.c
index 107daf5..37a6dca 100644
--- a/sys/kernel/descrip.c
+++ b/sys/kernel/descrip.c
@@ -45,15 +45,15 @@
     return (-1);
   }
 
-  fp = (struct file *) td->o_files[uap->fd];
+  fp = (struct file*) td->o_files[uap->fd];
   switch (uap->cmd) {
     case 3:
       td->td_retval[0] = fp->f_flag;
-    break;
+      break;
     case 4:
       fp->f_flag &= ~FCNTLFLAGS;
       fp->f_flag |= FFLAGS(uap->arg & ~O_ACCMODE) & FCNTLFLAGS;
-    break;
+      break;
     default:
       kprintf("ERROR DEFAULT: [%i]", uap->fd);
   }
@@ -70,12 +70,12 @@
   struct file *fp = 0x0;
   int i = 0;
 
-  fp = (struct file *) kmalloc(sizeof(struct file));
+  fp = (struct file*) kmalloc(sizeof(struct file));
 
   /* First 5 Descriptors Are Reserved */
   for (i = 5; i < MAX_FILES; i++) {
     if (td->o_files[i] == 0x0) {
-      td->o_files[i] = (void *) fp;
+      td->o_files[i] = (void*) fp;
       if (resultfd)
         *resultfd = i;
       if (resultfp)
@@ -115,7 +115,7 @@
   kprintf("[%s:%i]",__FILE__,__LINE__);
 #endif
   kprintf("[%s:%i]", __FILE__, __LINE__);
-  kfree((void *) td->o_files[uap->fd]);
+  kfree((void*) td->o_files[uap->fd]);
   td->o_files[uap->fd] = 0x0;
   td->td_retval[0] = 0x0;
   return (0x0);
@@ -140,7 +140,7 @@
   kprintf("[%s:%i]",__FILE__,__LINE__);
 #endif
 
-  fp = (struct file *) _current->td.o_files[uap->fd];
+  fp = (struct file*) _current->td.o_files[uap->fd];
   uap->sb->st_mode = 0x2180;
   uap->sb->st_blksize = 0x1000;
   kprintf("fstat: %i", uap->fd);
@@ -169,7 +169,7 @@
   kprintf("[%s:%i]",__FILE__,__LINE__);
 #endif
 
-  *fp = (struct file *) td->o_files[fd];
+  *fp = (struct file*) td->o_files[fd];
 
   if (fp == 0x0)
     error = -1;
@@ -181,7 +181,7 @@
   switch (args->com) {
     case TIOCGETA:
       if (args->fd == 0 || args->fd == 1) {
-        struct termios *t = (struct termios *) args->data;
+        struct termios *t = (struct termios*) args->data;
 
         t->c_iflag = 0x2B02;
         t->c_oflag = 0x3;
@@ -217,16 +217,16 @@
       else {
         td->td_retval[0] = -1;
       }
-    break;
+      break;
     case TIOCGWINSZ:
       asm("nop");
-      struct winsize *win = (struct winsize *) args->data;
+      struct winsize *win = (struct winsize*) args->data;
       win->ws_row = 50;
       win->ws_col = 80;
-    break;
+      break;
     default:
       kprintf("ioFD:%i:0x%X!", args->fd, args->com);
-    break;
+      break;
   }
 
   td->td_retval[0] = 0x0;
@@ -295,3 +295,23 @@
 
   return (error);
 }
+
+int dup2(struct thread *td, u_int32_t from, u_int32_t to) {
+
+  if (td->o_files[to] != 0x0) {
+    kprintf("FD IN USE!");
+    return (-1);
+  }
+
+  return (0x0);
+}
+
+int sys_dup2(struct thread *td, struct sys_dup2_args *args) {
+
+  int error = 0x0;
+
+  if ((td->td_retval[0] = dup2(td, args->from, args->to)) == -1)
+    error = -1;
+
+  return (error);
+}
diff --git a/sys/kernel/syscalls_posix.c b/sys/kernel/syscalls_posix.c
index b48b452..3fdda5d 100644
--- a/sys/kernel/syscalls_posix.c
+++ b/sys/kernel/syscalls_posix.c
@@ -482,10 +482,10 @@
         sys_invalid,
         SYSCALL_NOTIMP }, /*  89 - gettablesize */
     {
-        0,
+        ARG_COUNT(sys_dup2_args),
         "dup2",
-        sys_invalid,
-        SYSCALL_NOTIMP }, /*  90 - dup2 */
+        sys_dup2,
+    SYSCALL_VALID }, /*  90 - dup2 */
     {
         0,
         "getdopt",