Add service and interface whitelist/blacklists

This allows service whitelists and blacklists, and
interface whitelists to be passed into the application.

The whitelists can be prefixes, like xyz.openbmc_project.
The blacklist is the full service name.

A future commit can add support for interface blacklists.

Change-Id: I91f6ef2f7be63e4d13ac03d570bba18ef8277fae
Signed-off-by: Matt Spinler <spinler@us.ibm.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/src/argument.hpp b/src/argument.hpp
new file mode 100644
index 0000000..71a2c76
--- /dev/null
+++ b/src/argument.hpp
@@ -0,0 +1,50 @@
+#pragma once
+
+#include <getopt.h>
+
+#include <map>
+#include <string>
+
+/** @brief Class - Encapsulates parsing command line options and
+ *                 populating arguments
+ */
+class ArgumentParser
+{
+  public:
+    ArgumentParser() = delete;
+    ~ArgumentParser() = default;
+    ArgumentParser(const ArgumentParser&) = delete;
+    ArgumentParser& operator=(const ArgumentParser&) = delete;
+    ArgumentParser(ArgumentParser&&) = default;
+    ArgumentParser& operator=(ArgumentParser&&) = default;
+
+    /** @brief Constructs Argument object
+     *
+     *  @param argc - the main function's argc passed as is
+     *  @param argv - the main function's argv passed as is
+     *  @return Object constructed
+     */
+    ArgumentParser(int argc, char** argv);
+
+    /** @brief Given a option, returns its argument(optarg) */
+    const std::string& operator[](const std::string& opt);
+
+    /** @brief Displays usage */
+    static void usage(char** argv);
+
+    /** @brief Set to 'true' when an option is passed */
+    static const std::string true_string;
+
+    /** @brief Set to '' when an option is not passed */
+    static const std::string empty_string;
+
+  private:
+    /** @brief Option to argument mapping */
+    std::map<const std::string, std::string> arguments;
+
+    /** @brief Array of struct options as needed by getopt_long */
+    static const option options[];
+
+    /** @brief optstring as needed by getopt_long */
+    static const char* optionstr;
+};