diff --git a/Makefile b/Makefile
index 757c835..d7aac7e 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ CFLAGS += -g -O2  -Wall -Wextra -Wshadow \
 LDFLAGS += `pkg-config --libs-only-L gumbo libcurl fuse uuid expat`
 LIBS = -pthread -lgumbo -lcurl -lfuse -lcrypto -lexpat
 COBJS = main.o network.o fuse_local.o link.o cache.o util.o sonic.o log.o\
-	config.o
+	config.o ramcache.o
 
 OS := $(shell uname)
 ifeq ($(OS),Darwin)
diff --git a/src/link.c b/src/link.c
index 27dc58d..e7e98fe 100644
--- a/src/link.c
+++ b/src/link.c
@@ -1,6 +1,7 @@
 #include "link.h"
 
 #include "log.h"
+#include "ramcache.h"
 #include "util.h"
 
 #include <gumbo.h>
diff --git a/src/network.c b/src/network.c
index 64c0792..395591d 100644
--- a/src/network.c
+++ b/src/network.c
@@ -1,6 +1,7 @@
 #include "network.h"
 
 #include "log.h"
+#include "ramcache.h"
 #include "util.h"
 
 #include <openssl/crypto.h>
@@ -315,26 +316,6 @@ void transfer_nonblocking(CURL *curl)
     }
 }
 
-size_t write_memory_callback(void *recv_data, size_t size, size_t nmemb,
-                             void *userp)
-{
-    size_t recv_size = size * nmemb;
-    TransferStruct *ts = (TransferStruct *) userp;
-
-    ts->data = realloc(ts->data, ts->curr_size + recv_size + 1);
-    if (!ts->data) {
-        /*
-         * out of memory!
-         */
-        lprintf(fatal, "realloc failure!\n");
-    }
-
-    memmove(&ts->data[ts->curr_size], recv_data, recv_size);
-    ts->curr_size += recv_size;
-    ts->data[ts->curr_size] = '\0';
-    return recv_size;
-}
-
 int HTTP_temp_failure(HTTPResponseCode http_resp)
 {
     switch (http_resp) {
diff --git a/src/network.h b/src/network.h
index c97dcc4..eead3c9 100644
--- a/src/network.h
+++ b/src/network.h
@@ -12,34 +12,6 @@ typedef struct TransferStruct TransferStruct;
 
 #include <curl/curl.h>
 
-/**
- * \brief specify the type of data transfer
- */
-typedef enum {
-    FILESTAT = 's',
-    DATA = 'd'
-} TransferType;
-
-/**
- * \brief For storing transfer data and metadata
- */
-struct TransferStruct {
-    /** \brief The array to store the data */
-    char *data;
-    /** \brief The current size of the array */
-    size_t curr_size;
-    /** \brief The type of transfer being done */
-    TransferType type;
-    /** \brief Whether transfer is in progress */
-    volatile int transferring;
-    /** \brief The link associated with the transfer */
-    Link *link;
-    /** \brief The minium requested size */
-    size_t min_req_size;
-    /** \brief Whether we have sent off the minimally requested data*/
-    int min_data_sent;
-};
-
 /** \brief HTTP response codes */
 typedef enum {
     HTTP_OK = 200,
@@ -65,11 +37,6 @@ void transfer_blocking(CURL *curl);
 /** \brief non blocking file transfer */
 void transfer_nonblocking(CURL *curl);
 
-/** \brief callback function for file transfer */
-size_t
-write_memory_callback(void *contents, size_t size, size_t nmemb,
-                      void *userp);
-
 /**
  * \brief check if a HTTP response code corresponds to a temporary failure
  */
diff --git a/src/ramcache.c b/src/ramcache.c
new file mode 100644
index 0000000..1750ce2
--- /dev/null
+++ b/src/ramcache.c
@@ -0,0 +1,26 @@
+#include "ramcache.h"
+
+#include "log.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+size_t write_memory_callback(void *recv_data, size_t size, size_t nmemb,
+                             void *userp)
+{
+    size_t recv_size = size * nmemb;
+    TransferStruct *ts = (TransferStruct *) userp;
+
+    ts->data = realloc(ts->data, ts->curr_size + recv_size + 1);
+    if (!ts->data) {
+        /*
+         * out of memory!
+         */
+        lprintf(fatal, "realloc failure!\n");
+    }
+
+    memmove(&ts->data[ts->curr_size], recv_data, recv_size);
+    ts->curr_size += recv_size;
+    ts->data[ts->curr_size] = '\0';
+    return recv_size;
+}
\ No newline at end of file
diff --git a/src/ramcache.h b/src/ramcache.h
new file mode 100644
index 0000000..33cada1
--- /dev/null
+++ b/src/ramcache.h
@@ -0,0 +1,37 @@
+#ifndef RAMCACHE_H
+#define RAMCACHE_H
+#include "link.h"
+
+/**
+ * \brief specify the type of data transfer
+ */
+typedef enum {
+    FILESTAT = 's',
+    DATA = 'd'
+} TransferType;
+
+/**
+ * \brief For storing transfer data and metadata
+ */
+struct TransferStruct {
+    /** \brief The array to store the data */
+    char *data;
+    /** \brief The current size of the array */
+    size_t curr_size;
+    /** \brief The type of transfer being done */
+    TransferType type;
+    /** \brief Whether transfer is in progress */
+    volatile int transferring;
+    /** \brief The link associated with the transfer */
+    Link *link;
+    /** \brief The minium requested size */
+    size_t min_req_size;
+    /** \brief Whether we have sent off the minimally requested data*/
+    int min_data_sent;
+};
+
+/** \brief callback function for file transfer */
+size_t write_memory_callback(void *contents, size_t size, size_t nmemb,
+                             void *userp);
+
+#endif
\ No newline at end of file
diff --git a/src/sonic.c b/src/sonic.c
index 144cf75..8366d96 100644
--- a/src/sonic.c
+++ b/src/sonic.c
@@ -3,7 +3,7 @@
 #include "config.h"
 #include "log.h"
 #include "link.h"
-
+#include "ramcache.h"
 #include "util.h"
 
 #include <expat.h>