diff --git a/src/core/libraries/libc_internal/libc_internal_io.cpp b/src/core/libraries/libc_internal/libc_internal_io.cpp
index fe320feaf..60750282f 100644
--- a/src/core/libraries/libc_internal/libc_internal_io.cpp
+++ b/src/core/libraries/libc_internal/libc_internal_io.cpp
@@ -9,6 +9,8 @@
 #include "common/logging/log.h"
 #include "core/libraries/error_codes.h"
 #include "core/libraries/kernel/file_system.h"
+#include "core/libraries/kernel/kernel.h"
+#include "core/libraries/kernel/posix_error.h"
 #include "core/libraries/libs.h"
 #include "libc_internal_io.h"
 #include "printf.h"
@@ -24,11 +26,53 @@ void RegisterlibSceLibcInternalIo(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("eLdDw6l0-bU", "libSceLibcInternal", 1, "libSceLibcInternal", internal_snprintf);
 }
 
+std::vector<OrbisFILE*> g_files{};
+// Constants for tracking accurate file indexes.
+// Since the file struct is exposed to the application, accuracy is important.
+static constexpr s32 g_initial_files = 5;
+static constexpr s32 g_max_files = 0x100 - g_initial_files;
+
+OrbisFILE* PS4_SYSV_ABI internal__Fofind() {
+    u64 index = 0;
+    while (index != g_max_files) {
+        OrbisFILE* file = g_files.at(index);
+        // If file doesn't exist, create it.
+        if (file == nullptr) {
+            file = new OrbisFILE();
+            if (file == nullptr) {
+                return nullptr;
+            }
+            // Store new file in the array, initialize default values, and return it.
+            g_files.at(index) = file;
+            file->_Mode = 0x80;
+            file->_Idx = index + g_initial_files;
+            return file;
+        }
+        // Special case, files with mode 0 are returned?
+        if (file->_Mode == 0) {
+            file->_Mode = 0xff7f;
+            return file;
+        }
+        index++;
+    }
+    return nullptr;
+}
+
+OrbisFILE* PS4_SYSV_ABI internal__Foprep(const char* path, const char* mode, OrbisFILE* file,
+                                         s32 fd, s32 flag1, s32 flag2) {
+    if (file == nullptr) {
+        *Kernel::__Error() = POSIX_ENOMEM;
+    }
+    file->_Handle = -1;
+
+    // TODO: The rest of this.
+
+    return file;
+}
+
 OrbisFILE* PS4_SYSV_ABI internal_fopen(const char* path, const char* mode) {
     std::scoped_lock lk{g_stream_mtx};
 
-    
-
     return nullptr;
 }