diff --git a/CMakeLists.txt b/CMakeLists.txt
index 71203d8..1a204d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 project(simple-dict-server C)
 SET(CMAKE_BUILD_TYPE "Release")
 
@@ -49,12 +49,14 @@ message(STATUS "optional:-std=gnu99")
 add_executable(simple-dict-server server.c)
 add_executable(simple-dict-client client.c)
 add_executable(cfgwriter cfgwriter.c)
+add_executable(printall printall.c)
 #add_executable(migrate migrate.c)
 #add_executable(migratenew migratenew.c)
 
 target_link_libraries(simple-dict-server scrypto libspb.a pthread)
 target_link_libraries(simple-dict-client scrypto libspb.a pthread)
 target_link_libraries(cfgwriter libspb.a)
+target_link_libraries(printall libspb.a)
 
 #target_link_libraries(migrate libspb.a)
 #target_link_libraries(migratenew libspb.a)
diff --git a/printall.c b/printall.c
new file mode 100644
index 0000000..08dd906
--- /dev/null
+++ b/printall.c
@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <string.h>
+#include <simple_protobuf.h>
+#include <sys/types.h>
+
+#include "dict.h"
+
+static struct dict_t d;
+static uint8_t buf[8+DICTSZ];
+
+#define has_next(fp, ch) ((ch=getc(fp)),(feof(fp)?0:(ungetc(ch,fp),1)))
+
+int main(int argc, char** argv) {
+    if(argc == 2) {
+        uint32_t* items_len = align_struct(DICTSZ, 2, d.key, d.data);
+        FILE* f = fopen(argv[1], "rb");
+        if(f) {
+            int ch;
+
+            while(has_next(f, ch)) {
+                SIMPLE_PB* spb = read_pb_into(f, (SIMPLE_PB*)buf);
+                struct dict_t* d;
+                if(!spb) {
+                    fputs("Bad spb file", stderr);
+                    exit(EXIT_FAILURE);
+                }
+                dict_t* dd = (dict_t*)spb->target;
+                printf("%s\t\t%s\n", dd->key, dd->data);
+            }
+            fclose(f);
+        } else puts("Open file error.");
+    } else puts("Usage: <dict.sp>");
+}