X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fphysfs%2Fphysfs_stream.cpp;h=28d92c567a632085a65a5bb7ee3beb8c9b879111;hb=755ac9ae45065248ddf1343a82671f871b447577;hp=70175ed07fc582288cd4bc6a9f08f764c7fa46fd;hpb=cc5c936c476312c5b18d55dd58c19fa362b264d6;p=supertux.git

diff --git a/src/physfs/physfs_stream.cpp b/src/physfs/physfs_stream.cpp
index 70175ed07..28d92c567 100644
--- a/src/physfs/physfs_stream.cpp
+++ b/src/physfs/physfs_stream.cpp
@@ -28,6 +28,11 @@
 
 IFileStreambuf::IFileStreambuf(const std::string& filename)
 {
+    // check this as PHYSFS seems to be buggy and still returns a
+    // valid pointer in this case
+    if(filename == "") {
+        throw std::runtime_error("Couldn't open file: empty filename");
+    }
     file = PHYSFS_openRead(filename.c_str());
     if(file == 0) {
         std::stringstream msg;
@@ -123,6 +128,8 @@ OFileStreambuf::~OFileStreambuf()
 int
 OFileStreambuf::overflow(int c)
 {
+    char c2 = (char)c;
+
     if(pbase() == pptr())
         return 0;
 
@@ -132,7 +139,7 @@ OFileStreambuf::overflow(int c)
         return traits_type::eof();
 
     if(c != traits_type::eof()) {
-        PHYSFS_sint64 res = PHYSFS_write(file, &c, 1, 1);
+        PHYSFS_sint64 res = PHYSFS_write(file, &c2, 1, 1);
         if(res <= 0)
             return traits_type::eof();
     }