3 files changed, 51 insertions, 0 deletions

diff --git a/src/logger.cpp b/src/logger.cpp
index 34b5d78..1e0313b 100644
--- a/src/logger.cpp
+++ b/src/logger.cpp
@@ -129,3 +129,47 @@ void Bu::Logger::setLevel( int n )
         }
 }
 
+void Bu::Logger::hexDump( int nLevel, const char *sFile, const char *sFunction,
+                int nLine, const void *pDataV, long nDataLen,
+                const char *lpName )
+{
+        log( nLevel, sFile, sFunction, nLine, "Displaying %ld bytes of %s.\n", nDataLen, lpName );
+        const unsigned char *pData = (const unsigned char *)pDataV;
+        int j = 0;
+        Bu::FString sBorder;
+        for( int l = 0; l < 8*3+2*8+2; l++ ) sBorder += ((l!=8*3)?("-"):("+"));
+        sBorder += '\n';
+        log( nLevel, sFile, sFunction, nLine, sBorder.getStr() );
+        Bu::FString sLine;
+        for(;;)
+        {
+                int kmax = 8;
+                if( nDataLen-j < 8 ) kmax = nDataLen-j;
+                for(int k = 0; k < 8; k++ )
+                {
+                        if( k < kmax )
+                        {
+                                char buf[4];
+                                sprintf( buf, "%02X ", (int)((unsigned char)pData[j+k]) );
+                                sLine += buf;
+                        }
+                        else
+                        {
+                                sLine += "-- ";
+                        }
+                }
+                sLine += "| ";
+                for(int k = 0; k < kmax; k++ )
+                {
+                        char buf[3];
+                        sprintf( buf, "%c ", (pData[j+k]>32 && pData[j+k]<=128)?(pData[j+k]):('.') );
+                        sLine += buf;
+                }
+                sLine += '\n';
+                log( nLevel, sFile, sFunction, nLine, sLine.getStr() );
+                sLine = "";
+                j += kmax;
+                if( j >= nDataLen ) break;
+        }
+        log( nLevel, sFile, sFunction, nLine, sBorder.getStr() );
+}
diff --git a/src/logger.h b/src/logger.h
index f8e1692..f561e88 100644
--- a/src/logger.h
+++ b/src/logger.h
@@ -75,6 +75,8 @@ namespace Bu
                 void setMask( int n );
                 void setLevel( int n );
 
+                void hexDump( int nLevel, const char *sFile, const char *sFunction, int nLine, const void *pData, long nDataLen, const char *lpName );
+
         private:
                 Bu::FString sLogFormat;
                 int nLevelMask;
@@ -89,6 +91,9 @@ namespace Bu
 #define lineLog( nLevel, sFrmt, ...) \
         Bu::Logger::getInstance().log( nLevel, __FILE__, __PRETTY_FUNCTION__, __LINE__, sFrmt, ##__VA_ARGS__ ) 
 
+#define logHexDump( nLevel, pData, iSize, sName ) \
+        Bu::Logger::getInstance().hexDump( nLevel, __FILE__, __PRETTY_FUNCTION__, __LINE__, pData, iSize, sName ) 
+
 /**
  * Set the Bu::Logger logging mask directly.  See Bu::Logger::setMask for
  * details.
diff --git a/src/tests/logger.cpp b/src/tests/logger.cpp
index 290f479..59be9d4 100644
--- a/src/tests/logger.cpp
+++ b/src/tests/logger.cpp
@@ -22,6 +22,8 @@ int main()
         setLogFormat("%L: %y-%02m-%02d %h:%02M:%02s %f:%l:%F: %t");
         lineLog( 5, "Hey, error: %s", strerror( errno ) );
 
+        logHexDump( 5, "This is a test of the hex-dump facility", 16, "Random stuff");
+
         Thing gh;
         gh.go( 6);
 }