From 03d037c1974d8798e6844bfba48b34443e7edc4e Mon Sep 17 00:00:00 2001
From: Miguel Freitas <miguelfreitas@users.noreply.github.com>
Date: Sun, 6 Apr 2014 17:00:42 -0300
Subject: [PATCH] truncate file when saving settings

---
 src/twister_utils.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/twister_utils.cpp b/src/twister_utils.cpp
index 5abe5fc0..5260510b 100644
--- a/src/twister_utils.cpp
+++ b/src/twister_utils.cpp
@@ -71,6 +71,7 @@ int save_file(std::string const& filename, std::vector<char>& v)
 	libtorrent::error_code ec;
 	if (!f.open(filename, file::write_only, ec)) return -1;
 	if (ec) return -1;
+	f.set_size(0, ec);
 	file::iovec_t b = {&v[0], v.size()};
 	size_type written = f.writev(0, &b, 1, ec);
 	if (written != int(v.size())) return -3;