From 77e2dcea18ceb15a979b48575fcefc8cf92e6f2e Mon Sep 17 00:00:00 2001
From: jl777 <jameslee777@yahoo.com>
Date: Thu, 12 May 2016 15:13:15 -0500
Subject: [PATCH] test

---
 iguana/SuperNET_keys.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/iguana/SuperNET_keys.c b/iguana/SuperNET_keys.c
index 0864afa9f..94e8dcad9 100755
--- a/iguana/SuperNET_keys.c
+++ b/iguana/SuperNET_keys.c
@@ -163,9 +163,14 @@ int32_t SuperNET_savejsonfile(char *finalfname,bits256 privkey,bits256 destpubke
     if ( retval == 0 && strcmp(destfname,finalfname) != 0 )
     {
         char oldfname[1024];
-        strcpy(oldfname,finalfname), strcat(oldfname,".old");
-        OS_renamefile(finalfname,oldfname);
-        OS_renamefile(destfname,finalfname);
+        if ( OS_filesize(finalfname) >= OS_filesize(destfname) )
+            printf("skip replacing (%s) since new one is smaller\n",finalfname);
+        else
+        {
+            strcpy(oldfname,finalfname), strcat(oldfname,".old");
+            OS_renamefile(finalfname,oldfname);
+            OS_renamefile(destfname,finalfname);
+        }
     }
     return(retval);
 }