基于Linux的socket编程模板(8)

          { 
              continue; 
          } 
 
          // check the header 
          if ( memcmp( sPack.cmdHeader, TCP_CMD_HEADER_STR, TCP_CMD_HEADER_LEN ) != 0 ) 
          { 
              rPack.returnCMD = DVS_RETURN_INVLID_HEADER; 
 
              // return error info to client 
              returnBytes = send(socketfd,(uint8_t *)&rPack,RETURN_PACK_LEN,0 ) ; 
              if( returnBytes < RETURN_PACK_LEN) 
              { 
                  printf("send error!\n"); 
                    continue; 
              } 
          } 
 
          // analyse cmd 
          rPack.returnCMD = DVS_RETURN_SUCCESS; 
          switch( sPack.serverCMD ) 
          { 
          case CMD_SAVE_USER_NAME: 
               {   
                     if( save_user_name(sPack.Parameters.UserName.username) != 0) 
                     { 
                         rPack.returnCMD = DVS_RETURN_FAIL; 
                     } 
               } 
          break;