diff --git a/applypatch/applypatch.h b/applypatch/applypatch.h
index 10c0125..a78c89b 100644
--- a/applypatch/applypatch.h
+++ b/applypatch/applypatch.h
@@ -19,6 +19,7 @@
 
 #include <sys/stat.h>
 #include "mincrypt/sha.h"
+#include "minelf/Retouch.h"
 #include "edify/expr.h"
 
 typedef struct _Patch {
@@ -59,10 +60,12 @@
                      int num_patches,
                      char** const patch_sha1_str);
 
-// Read a file into memory; store it and its associated metadata in
-// *file.  Return 0 on success.
-int LoadFileContents(const char* filename, FileContents* file);
+int LoadFileContents(const char* filename, FileContents* file,
+                     int retouch_flag);
+int SaveFileContents(const char* filename, FileContents file);
 void FreeFileContents(FileContents* file);
+int FindMatchingPatch(uint8_t* sha1, char** const patch_sha1_str,
+                      int num_patches);
 
 // bsdiff.c
 void ShowBSDiffLicense();