From 8b12fd3d04bd4d4914fee6530d770c9171ea4bc4 Mon Sep 17 00:00:00 2001
From: Christophe Grenier <grenier@cgsecurity.org>
Date: Sat, 11 Feb 2012 19:25:53 +0100
Subject: [PATCH] PhotoRec: avoid successive '_' chars in filenames

---
 src/filegen.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/filegen.c b/src/filegen.c
index 2f21c153..a1eef806 100644
--- a/src/filegen.c
+++ b/src/filegen.c
@@ -401,7 +401,8 @@ void file_rename(const char *old_filename, const unsigned char *buffer, const in
 	case '\\':
 	case ':':
 	case '*':
-	  *dst++ = '_';
+	  if(*(dst-1) != '_')
+	    *dst++ = '_';
 	  bad++;
 	  break;
 	default:
@@ -412,7 +413,8 @@ void file_rename(const char *old_filename, const unsigned char *buffer, const in
 	  }
 	  else
 	  {
-	    *dst++ = '_';
+	    if(*(dst-1) != '_')
+	      *dst++ = '_';
 	    bad++;
 	  }
 	  break;