Use config to declare signal/stun server info

src/inih/INIReader.h

@@ -0,0 +1,107 @@
+// Read an INI file into easy-to-access name/value pairs.
+
+// SPDX-License-Identifier: BSD-3-Clause
+
+// Copyright (C) 2009-2020, Ben Hoyt
+
+// inih and INIReader are released under the New BSD license (see LICENSE.txt).
+// Go to the project home page for more info:
+//
+// https://github.com/benhoyt/inih
+
+#ifndef INIREADER_H
+#define INIREADER_H
+
+#include <map>
+#include <string>
+
+// Visibility symbols, required for Windows DLLs
+#ifndef INI_API
+#if defined _WIN32 || defined __CYGWIN__
+#ifdef INI_SHARED_LIB
+#ifdef INI_SHARED_LIB_BUILDING
+#define INI_API __declspec(dllexport)
+#else
+#define INI_API __declspec(dllimport)
+#endif
+#else
+#define INI_API
+#endif
+#else
+#if defined(__GNUC__) && __GNUC__ >= 4
+#define INI_API __attribute__((visibility("default")))
+#else
+#define INI_API
+#endif
+#endif
+#endif
+
+// Read an INI file into easy-to-access name/value pairs. (Note that I've gone
+// for simplicity here rather than speed, but it should be pretty decent.)
+class INIReader {
+ public:
+  // Construct INIReader and parse given filename. See ini.h for more info
+  // about the parsing.
+  INI_API explicit INIReader(const std::string& filename);
+
+  // Construct INIReader and parse given buffer. See ini.h for more info
+  // about the parsing.
+  INI_API explicit INIReader(const char* buffer, size_t buffer_size);
+
+  // Return the result of ini_parse(), i.e., 0 on success, line number of
+  // first error on parse error, or -1 on file open error.
+  INI_API int ParseError() const;
+
+  // Get a string value from INI file, returning default_value if not found.
+  INI_API std::string Get(const std::string& section, const std::string& name,
+                          const std::string& default_value) const;
+
+  // Get a string value from INI file, returning default_value if not found,
+  // empty, or contains only whitespace.
+  INI_API std::string GetString(const std::string& section,
+                                const std::string& name,
+                                const std::string& default_value) const;
+
+  // Get an integer (long) value from INI file, returning default_value if
+  // not found or not a valid integer (decimal "1234", "-1234", or hex "0x4d2").
+  INI_API long GetInteger(const std::string& section, const std::string& name,
+                          long default_value) const;
+
+  // Get an unsigned integer (unsigned long) value from INI file,
+  // returning default_value if not found or not a valid integer
+  // (decimal "1234", or hex "0x4d2").
+  INI_API unsigned long GetUnsigned(const std::string& section,
+                                    const std::string& name,
+                                    unsigned long default_value) const;
+
+  // Get a real (floating point double) value from INI file, returning
+  // default_value if not found or not a valid floating point value
+  // according to strtod().
+  INI_API double GetReal(const std::string& section, const std::string& name,
+                         double default_value) const;
+
+  // Get a boolean value from INI file, returning default_value if not found or
+  // if not a valid true/false value. Valid true values are "true", "yes", "on",
+  // "1", and valid false values are "false", "no", "off", "0" (not case
+  // sensitive).
+  INI_API bool GetBoolean(const std::string& section, const std::string& name,
+                          bool default_value) const;
+
+  // Return true if the given section exists (section must contain at least
+  // one name=value pair).
+  INI_API bool HasSection(const std::string& section) const;
+
+  // Return true if a value exists with the given section and field names.
+  INI_API bool HasValue(const std::string& section,
+                        const std::string& name) const;
+
+ private:
+  int _error;
+  std::map<std::string, std::string> _values;
+  static std::string MakeKey(const std::string& section,
+                             const std::string& name);
+  static int ValueHandler(void* user, const char* section, const char* name,
+                          const char* value);
+};
+
+#endif  // INIREADER_H