ipmi exceptions: add method to grab code

Add a method to grab the underlying code to allow easier repackaging of
the exception into something else.

Change-Id: Icf25254c612926429f623d757998c3927966e0aa
Signed-off-by: Patrick Venture <venture@google.com>

1 files changed, 16 insertions, 2 deletions

diff --git a/src/ipmiblob/ipmi_errors.hpp b/src/ipmiblob/ipmi_errors.hpp
index e41b3cf..15a5d4c 100644
--- a/src/ipmiblob/ipmi_errors.hpp
+++ b/src/ipmiblob/ipmi_errors.hpp
@@ -10,7 +10,8 @@ namespace ipmiblob
 class IpmiException : public std::exception
 {
   public:
-    explicit IpmiException(const std::string& message) : _message(message){};
+    IpmiException(const std::string& message, int code) :
+        _message(message), _ccode(code){};
 
     static std::string messageFromIpmi(int cc)
     {
@@ -31,7 +32,14 @@ class IpmiException : public std::exception
         }
     }
 
-    explicit IpmiException(int cc) : IpmiException(messageFromIpmi(cc))
+    /* This will leave the code as 0, but by virtue of being an exception
+     * thrown, we'll know it was an error on the host-side.
+     */
+    explicit IpmiException(const std::string& message) : _message(message)
+    {
+    }
+
+    explicit IpmiException(int cc) : IpmiException(messageFromIpmi(cc), cc)
     {
     }
 
@@ -40,8 +48,14 @@ class IpmiException : public std::exception
         return _message.c_str();
     }
 
+    int code() const noexcept
+    {
+        return _ccode;
+    }
+
   private:
     std::string _message;
+    int _ccode = 0;
 };
 
 } // namespace ipmiblob