diff --git a/libc/Makefile b/libc/Makefile
index b247f807..2e14782e 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -172,6 +172,7 @@ fdio.o \
fileno.o \
fork.o \
fpipe.o \
+freopen.o \
fsm_bootstraprootfd.o \
fsm_closechannel.o \
fsm_closeserver.o \
diff --git a/libc/freopen.cpp b/libc/freopen.cpp
new file mode 100644
index 00000000..d74e1d36
--- /dev/null
+++ b/libc/freopen.cpp
@@ -0,0 +1,57 @@
+/*******************************************************************************
+
+ Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+ This file is part of the Sortix C Library.
+
+ The Sortix C Library is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or (at your
+ option) any later version.
+
+ The Sortix C Library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with the Sortix C Library. If not, see .
+
+ freopen.cpp
+ Changes the file with which a FILE is associated.
+
+*******************************************************************************/
+
+#include
+#include
+
+#include "fdio.h"
+
+extern "C" FILE* freopen(const char* path, const char* mode, FILE* fp)
+{
+ // If no path is given, simply try to change the mode of the file.
+ if ( !path )
+ {
+ // TODO: Determine whether the file should be closed in case we fail
+ // here to change the mode. A quick look at POSIX doesn't mention that
+ // it should be closed, so we'll assume it shouldn't!
+ if ( !fp->reopen_func )
+ return errno = EBADF, (FILE*) NULL;
+ if ( !fp->reopen_func(fp->user, mode) )
+ return NULL;
+ return fp;
+ }
+
+ // Uninstall the current backend of the FILE (after flushing) and return the
+ // FILE to the default state (like a new object from fnewfile).
+ fshutdown(fp);
+
+ // Attempt to open the new path and install that into our FILE object.
+ if ( fdio_install_path(fp, path, mode) != 0 )
+ {
+ fclose(fp);
+ return NULL;
+ }
+
+ return fp;
+}