STFS loading... xex's load, but files seem broken. Ugh.

src/xenia/kernel/fs/devices/stfs_container_device.cc

@@ -0,0 +1,99 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2014 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include <xenia/kernel/fs/devices/stfs_container_device.h>
+
+#include <xenia/kernel/fs/stfs.h>
+#include <xenia/kernel/fs/devices/stfs_container_entry.h>
+
+
+using namespace xe;
+using namespace xe::kernel;
+using namespace xe::kernel::fs;
+
+
+
+STFSContainerDevice::STFSContainerDevice(
+    const char* path, const xechar_t* local_path) :
+    Device(path) {
+  local_path_ = xestrdup(local_path);
+  mmap_ = NULL;
+  stfs_ = NULL;
+}
+
+STFSContainerDevice::~STFSContainerDevice() {
+  delete stfs_;
+  xe_mmap_release(mmap_);
+  xe_free(local_path_);
+}
+
+int STFSContainerDevice::Init() {
+  mmap_ = xe_mmap_open(kXEFileModeRead, local_path_, 0, 0);
+  if (!mmap_) {
+    XELOGE("STFS container could not be mapped");
+    return 1;
+  }
+
+  stfs_ = new STFS(mmap_);
+  STFS::Error error = stfs_->Load();
+  if (error != STFS::kSuccess) {
+    XELOGE("STFS init failed: %d", error);
+    return 1;
+  }
+
+  stfs_->Dump();
+
+  return 0;
+}
+
+Entry* STFSContainerDevice::ResolvePath(const char* path) {
+  // The filesystem will have stripped our prefix off already, so the path will
+  // be in the form:
+  // some\PATH.foo
+
+  XELOGFS("STFSContainerDevice::ResolvePath(%s)", path);
+
+  STFSEntry* stfs_entry = stfs_->root_entry();
+
+  // Walk the path, one separator at a time.
+  // We copy it into the buffer and shift it left over and over.
+  char remaining[XE_MAX_PATH];
+  XEIGNORE(xestrcpya(remaining, XECOUNT(remaining), path));
+  while (remaining[0]) {
+    char* next_slash = xestrchra(remaining, '\\');
+    if (next_slash == remaining) {
+      // Leading slash - shift
+      XEIGNORE(xestrcpya(remaining, XECOUNT(remaining), remaining + 1));
+      continue;
+    }
+
+    // Make the buffer just the name.
+    if (next_slash) {
+      *next_slash = 0;
+    }
+
+    // Look up in the entry.
+    stfs_entry = stfs_entry->GetChild(remaining);
+    if (!stfs_entry) {
+      // Not found.
+      return NULL;
+    }
+
+    // Shift the buffer down, unless we are at the end.
+    if (!next_slash) {
+      break;
+    }
+    XEIGNORE(xestrcpya(remaining, XECOUNT(remaining), next_slash + 1));
+  }
+
+  Entry::Type type = stfs_entry->attributes & X_FILE_ATTRIBUTE_DIRECTORY ?
+      Entry::kTypeDirectory : Entry::kTypeFile;
+  return new STFSContainerEntry(
+      type, this, path, mmap_, stfs_entry);
+}