gentoo-overlay/sci-geosciences/liblas/files/liblas-1.8.1-CVE-2018-20540.patch

From 09d45518776489508f34098f1c159f58b856f459 Mon Sep 17 00:00:00 2001
From: Mateusz Loskot <mateusz@loskot.net>
Date: Sun, 20 Jan 2019 02:28:29 +0100
Subject: [PATCH] Ensure stream is deallocated in case of exception (#162)

Fixes #158
---
 include/liblas/liblas.hpp | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/include/liblas/liblas.hpp b/include/liblas/liblas.hpp
index f5ad44e1..325de3ff 100644
--- a/include/liblas/liblas.hpp
+++ b/include/liblas/liblas.hpp
@@ -119,16 +119,32 @@ inline std::istream* Open(std::string const& filename, std::ios::openmode mode)
 {
 #ifdef USE_BOOST_IO
     namespace io = boost::iostreams;
-    io::stream<io::file_source>* ifs = new io::stream<io::file_source>();
-    ifs->open(filename.c_str(), mode);
-    if (ifs->is_open() == false) return NULL;
-    return ifs;
+    io::stream<io::file_source>* ifs = NULL;
+    try
+    {
+        ifs = new io::stream<io::file_source>();
+        ifs->open(filename.c_str(), mode);
+        if (ifs->is_open() == false) return NULL;
+        return ifs;
+    }
+    catch (...)
+    {
+        delete ifs;
+    }
 #else
-    std::ifstream* ifs = new std::ifstream();
-    ifs->open(filename.c_str(), mode);
-    if (ifs->is_open() == false) return NULL;
-    return ifs;
+    std::ifstream* ifs = NULL;
+    try
+    {
+        ifs = new std::ifstream();
+        ifs->open(filename.c_str(), mode);
+        if (ifs->is_open() == false) return NULL;
+    }
+    catch (...)
+    {
+        delete ifs;
+    }
 #endif
+    return NULL;
 }
 
 /// Create file and open to write in binary mode.