1 files changed, 146 insertions, 0 deletions
diff --git a/src/fs/virtfs/rwops.cpp b/src/fs/virtfs/rwops.cpp
new file mode 100644
index 000000000..854c5510d
--- /dev/null
+++ b/src/fs/virtfs/rwops.cpp
@@ -0,0 +1,146 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2013-2017  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * This code provides a glue layer between PhysicsFS and Simple Directmedia
+ *  Layer's (SDL) RWops i/o abstraction.
+ *
+ * License: this code is public domain. I make no warranty that it is useful,
+ *  correct, harmless, or environmentally safe.
+ *
+ * This particular file may be used however you like, including copying it
+ *  verbatim into a closed-source project, exploiting it commercially, and
+ *  removing any trace of my name from the source (although I hope you won't
+ *  do that). I welcome enhancements and corrections to this file, but I do
+ *  not require you to send me patches if you make changes. This code has
+ *  NO WARRANTY.
+ *
+ * Unless otherwise stated, the rest of PhysicsFS falls under the zlib license.
+ *  Please see LICENSE.txt in the root of the source tree.
+ *
+ * SDL falls under the LGPL license. You can get SDL at http://www.libsdl.org/
+ *
+ *  This file was written by Ryan C. Gordon. (icculus@icculus.org).
+ *
+ *  Copyright (C) 2012-2017  The ManaPlus Developers
+ */
+
+#include "fs/virtfs/rwops.h"
+
+#include "logger.h"
+
+#include "fs/virtfs/file.h"
+#include "fs/virtfs/virtfs.h"
+#include "fs/virtfs/fsfuncs.h"
+
+#include "utils/fuzzer.h"
+
+#include <SDL_rwops.h>
+
+#include "debug.h"
+
+namespace VirtFs
+{
+
+SDL_RWops *create_rwops(File *const file)
+{
+    SDL_RWops *retval = nullptr;
+
+    if (!file)
+    {
+        logger->assertLog("VirtFs::rwops_seek: create rwops error.");
+    }
+    else
+    {
+        retval = SDL_AllocRW();
+        if (retval)
+        {
+#ifdef USE_SDL2
+            retval->size  = file->funcs->rwops_size;
+#endif  // USE_SDL2
+
+            retval->seek  = file->funcs->rwops_seek;
+            retval->read  = file->funcs->rwops_read;
+            retval->write = file->funcs->rwops_write;
+            retval->close = file->funcs->rwops_close;
+            retval->hidden.unknown.data1 = file;
+        } /* if */
+    } /* else */
+
+    return retval;
+} /* VirtFs::create_rwops */
+
+#ifdef __APPLE__
+static bool checkFilePath(const std::string &restrict fname)
+{
+    if (fname.empty())
+        return false;
+    if (!exists(fname) || isDirectory(fname))
+        return false;
+    return true;
+}
+#endif  // __APPLE__
+
+SDL_RWops *rwopsOpenRead(const std::string &restrict fname)
+{
+    BLOCK_START("RWopsopenRead")
+#ifdef __APPLE__
+    if (!checkFilePath(fname))
+        return nullptr;
+#endif  // __APPLE__
+#ifdef USE_FUZZER
+    if (Fuzzer::conditionTerminate(fname))
+        return nullptr;
+#endif  // USE_FUZZER
+#ifdef USE_PROFILER
+
+    SDL_RWops *const ret = create_rwops(openRead(fname));
+
+    BLOCK_END("RWopsopenRead")
+    return ret;
+#else  // USE_PROFILER
+
+    return create_rwops(openRead(fname));
+#endif  // USE_PROFILER
+} /* RWopsopenRead */
+
+SDL_RWops *rwopsOpenWrite(const std::string &restrict fname)
+{
+#ifdef __APPLE__
+    if (!checkFilePath(fname))
+        return nullptr;
+#endif  // __APPLE__
+
+    return create_rwops(openWrite(fname));
+} /* RWopsopenWrite */
+
+SDL_RWops *rwopsOpenAppend(const std::string &restrict fname)
+{
+#ifdef __APPLE__
+    if (!checkFilePath(fname))
+        return nullptr;
+#endif  // __APPLE__
+
+    return create_rwops(openAppend(fname));
+} /* RWopsopenAppend */
+
+}  // namespace VirtFs
+
+/* end of virtfsrwops.c ... */