[file-roller: 83/123] fixed crash when converting an archive

[Paolo Bacchilega <paobac src gnome org>]

commit 58945517a7ca1fac945f473a6d49947b120ed612
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Mon Jul 30 10:52:57 2012 +0200

    fixed crash when converting an archive

 src/fr-archive-libarchive.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/fr-archive-libarchive.c b/src/fr-archive-libarchive.c
index 947e829..79e81ca 100644
--- a/src/fr-archive-libarchive.c
+++ b/src/fr-archive-libarchive.c
@@ -1209,7 +1209,10 @@ fr_archive_libarchive_add_files (FrArchive           *archive,
 	add_data = add_data_new ();
 
 	base_dir = g_file_new_for_uri (base_dir_uri);
-	dest_dir = dest_dir[0] == '/' ? dest_dir + 1 : dest_dir;
+	if (dest_dir != NULL)
+		dest_dir = dest_dir[0] == '/' ? dest_dir + 1 : dest_dir;
+	else
+		dest_dir = "";
 	for (scan = file_list; scan; scan = scan->next) {
 		char  *relative_pathname = scan->data;
 		char  *full_pathname;