Release all allocated memory on exit.

With this patch when dvblast exits, all allocated memory
is released. This makes dvblast valgrind clean.

demux.c

@@ -99,6 +99,10 @@ static int i_demux_fd;
 static int i_nb_errors = 0;
 static mtime_t i_last_error = 0;
 
+#ifdef HAVE_ICONV
+static iconv_t iconv_handle = (iconv_t)-1;
+#endif
+
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
@@ -178,6 +182,47 @@ void demux_Open( void )
     SetPID(TDT_PID);
 }
 
+/*****************************************************************************
+ * demux_Close
+ *****************************************************************************/
+void demux_Close( void )
+{
+    int i, j;
+
+    psi_table_free( pp_current_pat_sections );
+    psi_table_free( pp_next_pat_sections );
+    psi_table_free( pp_current_cat_sections );
+    psi_table_free( pp_next_cat_sections );
+    psi_table_free( pp_current_nit_sections );
+    psi_table_free( pp_next_nit_sections );
+    psi_table_free( pp_current_sdt_sections );
+    psi_table_free( pp_next_sdt_sections );
+
+    for ( i = 0; i < 8192; i++ )
+    {
+        free( p_pids[i].p_psi_buffer );
+        for ( j = 0; j < p_pids[i].i_nb_outputs; j++ )
+        {
+            free( p_pids[i].pp_outputs );
+        }
+    }
+
+    for ( i = 0; i < i_nb_sids; i++ )
+    {
+        sid_t *p_sid = pp_sids[i];
+        free( p_sid->p_current_pmt );
+        free( p_sid );
+    }
+    free( pp_sids );
+
+#ifdef HAVE_ICONV
+    if (iconv_handle != (iconv_t)-1) {
+        iconv_close(iconv_handle);
+        iconv_handle = (iconv_t)-1;
+    }
+#endif
+}
+
 /*****************************************************************************
  * demux_Run
  *****************************************************************************/
@@ -1590,7 +1635,6 @@ char *demux_Iconv(void *_unused, const char *psz_encoding,
 {
 #ifdef HAVE_ICONV
     static const char *psz_current_encoding = "";
-    static iconv_t iconv_handle = (iconv_t)-1;
 
     char *psz_string, *p;
     size_t i_out_length;

dvblast.c

@@ -972,6 +972,10 @@ int main( int i_argc, char **pp_argv )
     }
 
     mrtgClose();
+    outputs_Close( i_nb_outputs );
+    demux_Close();
+    free( p_network_name );
+
     if ( b_enable_syslog )
         msg_Disconnect();
     return EXIT_SUCCESS;

dvblast.h

@@ -232,6 +232,7 @@ void demux_ResendCAPMTs( void );
 bool demux_PIDIsSelected( uint16_t i_pid );
 char *demux_Iconv(void *_unused, const char *psz_encoding,
                   char *p_string, size_t i_length);
+void demux_Close( void );
 
 
 output_t *output_Create( const output_config_t *p_config );
@@ -241,6 +242,7 @@ void output_Put( output_t *p_output, block_t *p_block );
 mtime_t output_Send( void );
 output_t *output_Find( const output_config_t *p_config );
 void output_Change( output_t *p_output, const output_config_t *p_config );
+void outputs_Close( int i_num_outputs );
 
 void comm_Open( void );
 void comm_Read( void );

output.c

@@ -478,3 +478,26 @@ void output_Change( output_t *p_output, const output_config_t *p_config )
         }
     }
 }
+
+/*****************************************************************************
+ * outputs_Close : Close all outputs and free allocated memory
+ *****************************************************************************/
+void outputs_Close( int i_num_outputs )
+{
+    int i;
+
+    for ( i = 0; i < i_num_outputs; i++ )
+    {
+        output_t *p_output = pp_outputs[i];
+
+        msg_Dbg( NULL, "removing %s", p_output->config.psz_displayname );
+
+        if ( p_output->p_packets )
+            output_Flush( p_output );
+        output_Close( p_output );
+
+        free( p_output );
+    }
+
+    free( pp_outputs );
+}