1 files changed, 1 insertions, 1 deletions

diff --git a/contrib/minizip/unzip.c b/contrib/minizip/unzip.c
index 78a8473..ff71a47 100644
--- a/contrib/minizip/unzip.c
+++ b/contrib/minizip/unzip.c
@@ -315,7 +315,7 @@ local uLong unzlocal_SearchCentralDir(fin)
                 if (fread(buf,(uInt)uReadSize,1,fin)!=1)
                         break;
 
-                for (i=0;i<(int)uReadSize-3;i++)
+                for (i=(int)uReadSize-3; (i--)>0;)
                         if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && 
                                 ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
                         {