1 files changed, 43 insertions, 0 deletions
diff --git a/adb/adb_utils.cpp b/adb/adb_utils.cpp
new file mode 100644
index 0000000..5a6ac33
--- /dev/null
+++ b/adb/adb_utils.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "adb_utils.h"
+
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+bool directory_exists(const std::string& path) {
+  struct stat sb;
+  return lstat(path.c_str(), &sb) != -1 && S_ISDIR(sb.st_mode);
+}
+
+static bool should_escape(const char c) {
+  return (c == ' ' || c == '\'' || c == '"' || c == '\\' || c == '(' || c == ')');
+}
+
+std::string escape_arg(const std::string& s) {
+  // Preserve empty arguments.
+  if (s.empty()) return "\"\"";
+
+  std::string result(s);
+  for (auto it = result.begin(); it != result.end(); ++it) {
+      if (should_escape(*it)) {
+          it = result.insert(it, '\\') + 1;
+      }
+  }
+  return result;
+}