diff --git a/libs/libc/src/file.cpp b/libs/libc/src/file.cpp
index c98db0ee..8e70e47a 100644
--- a/libs/libc/src/file.cpp
+++ b/libs/libc/src/file.cpp
@@ -5,6 +5,9 @@
 #include <stdlib.h>
 #include <unistd.h>
 
+FILE* __stderr;
+FILE* __stdout;
+
 extern "C"
 {
     int fclose(FILE* stream)
@@ -29,7 +32,7 @@ extern "C"
 
     FILE* fopen(const char* pathname, const char*)
     {
-        int fd = open(pathname, O_RDONLY); // FIXME: Use the mode string.
+        int fd = open(pathname, O_RDWR); // FIXME: Use the mode string.
         if (fd < 0) { return 0; }
         FILE* stream = (FILE*)malloc(sizeof(FILE));
         stream->f_fd = fd;
@@ -74,9 +77,16 @@ extern "C"
         NOT_IMPLEMENTED("ftell");
     }
 
-    size_t fwrite(const void*, size_t, size_t, FILE*)
+    size_t fwrite(const void* buf, size_t size, size_t nmemb, FILE* stream)
     {
-        NOT_IMPLEMENTED("fwrite");
+        ssize_t status = write(stream->f_fd, buf, size * nmemb);
+        if (status < 0)
+        {
+            stream->f_err = 1;
+            return 0;
+        }
+        if (status == 0) stream->f_eof = 1;
+        return (size_t)status;
     }
 
     void setbuf(FILE*, char*)