base: Add getSectionNames to IniFile

Add an accessor to IniFile to list all the sections in the file.

src/base/inifile.cc

@@ -280,6 +280,16 @@ IniFile::Section::printUnreferenced(const string &sectionName)
 }
 
 
+void
+IniFile::getSectionNames(vector<string> &list) const
+{
+    for (SectionTable::const_iterator i = table.begin();
+         i != table.end(); ++i)
+    {
+        list.push_back((*i).first);
+    }
+}
+
 bool
 IniFile::printUnreferenced()
 {

src/base/inifile.hh

@@ -192,6 +192,9 @@ class IniFile
     /// @return True if the section exists.
     bool sectionExists(const std::string &section) const;
 
+    /// Push all section names into the given vector
+    void getSectionNames(std::vector<std::string> &list) const;
+
     /// Print unreferenced entries in object.  Iteratively calls
     /// printUnreferend() on all the constituent sections.
     bool printUnreferenced();