How to make chat commands modifications?

static int _handle_finger_command(t_connection * c, char const *text)
{
  char           dest[MAX_USERNAME_LEN];
  unsigned int   i,j;
  t_account *    account;
  t_connection * conn;
  char const *   ip;
  char *         tok;
  t_clanmember * clanmemb;

  for (i=0; text[i]!=' ' && text[i]!='\0'; i++); /* skip command */
  for (; text[i]==' '; i++);
  for (j=0; text[i]!=' ' && text[i]!='\0'; i++) /* get dest */
    if (j<sizeof(dest)-1) dest[j++] = text[i];
  dest[j] = '\0';
  for (; text[i]==' '; i++);

  if (dest[0]=='\0')
  {
    message_send_text(c,message_type_info,c,"Gunakan: /finger <account>");
    return 0;
  }

  if (!(account = accountlist_find_account(dest)))
    {
      message_send_text(c,message_type_error,c,"Invalid user.");
      return 0;
    }
  snprintf(msgtemp, sizeof(msgtemp), "ID: %-16.16s            "UID_FORMAT"",
      account_get_name(account),
      account_get_uid(account));
  message_send_text(c,message_type_info,c,msgtemp);
  snprintf(msgtemp, sizeof(msgtemp), "Jenis Kelamin: %.14s",
    account_get_sex(account));
  message_send_text(c,message_type_info,c,msgtemp);

  if ((clanmemb = account_get_clanmember(account)))
  {
    t_clan *     clan;
    char     status;

    if ((clan = clanmember_get_clan(clanmemb)))
    {
    snprintf(msgtemp, sizeof(msgtemp), "Clan: %-64.64s",clan_get_name(clan));
    if ((status = clanmember_get_status(clanmemb)))
    {
        switch (status)
        {
        case CLAN_CHIEFTAIN:
           std::strcat(msgtemp,"  Rank: Chieftain");
           break;
        case CLAN_SHAMAN:
           std::strcat(msgtemp,"  Rank: Shaman");
           break;
        case CLAN_GRUNT:
           std::strcat(msgtemp,"  Rank: Grunt");
           break;
        case CLAN_PEON:
           std::strcat(msgtemp,"  Rank: Peon");
           break;
        default:;
        }
    }
    message_send_text(c,message_type_info,c,msgtemp);

    }
  }

snprintf(msgtemp, sizeof(msgtemp), "Lokasi: %-23.23s",
      account_get_loc(account));
  message_send_text(c,message_type_info,c,msgtemp);
  snprintf(msgtemp, sizeof(msgtemp), "Umur: %.14s",
      account_get_age(account));
  message_send_text(c,message_type_info,c,msgtemp);

  if((conn = connlist_find_connection_by_accountname(dest)))
  {
      snprintf(msgtemp, sizeof(msgtemp), "Client: %s           Version: %s",
          clienttag_get_title(conn_get_clienttag(conn)),
          conn_get_clientver(conn));
      message_send_text(c,message_type_info,c,msgtemp);
      snprintf(msgtemp, sizeof(msgtemp), "Negara: %s",
          conn_get_country(conn));
  message_send_text(c,message_type_info,c,msgtemp);
      
  }

  if (!(ip=account_get_ll_ip(account)) ||
      !(account_get_command_groups(conn_get_account(c)) & command_get_group("/admin-addr"))) /* default to false */
    ip = "unknown";

  {
    std::time_t      then;
    struct std::tm * tmthen;

    then = account_get_ll_time(account);
    tmthen = std::localtime(&then); /* FIXME: determine user's timezone */
    if (!(conn))
      if (tmthen)
    std::strftime(msgtemp,sizeof(msgtemp),"Terakhir login pada %a %b %d %H:%M %Y from ",tmthen);
      else
    std::strcpy(msgtemp,"Terakhir login ? pada ");
    else
      if (tmthen)
    std::strftime(msgtemp,sizeof(msgtemp),"Terakhir terlihat pada %a %b %d %H:%M %Y dari ",tmthen);
      else
    std::strcpy(msgtemp,"Terakhir terlihat ? pada ");
  }
  std::strncat(msgtemp,ip,32);
  message_send_text(c,message_type_info,c,msgtemp);

  /* check /admin-addr for admin privileges */
  if ( (account_get_command_groups(conn_get_account(c)) & command_get_group("/admin-addr")))
  {
      /* the player who requested /finger has admin privileges
         give him more info about the one he querys;
         is_admin, is_operator, is_locked, email */
         snprintf(msgtemp, sizeof(msgtemp), "email:%.128s , is_operator: %d , is_admin: %d , is_acc_locked: %d",
         account_get_email(account),
         account_get_auth_operator(account,NULL),
         account_get_auth_admin(account,NULL),
         account_get_auth_lock(account));
         message_send_text(c,message_type_info,c,msgtemp);
  }


  if (conn)
    {
      snprintf(msgtemp, sizeof(msgtemp), "Idle %.128s",seconds_to_timestr(conn_get_idletime(conn)));
      message_send_text(c,message_type_info,c,msgtemp);
    }

  std::strncpy(msgtemp,account_get_desc(account),sizeof(msgtemp));
  msgtemp[sizeof(msgtemp)-1] = '\0';
  for (tok=std::strtok(msgtemp,"\r\n"); tok; tok=std::strtok(NULL,"\r\n"))
    message_send_text(c,message_type_info,c,tok);
  message_send_text(c,message_type_info,c,"");

  return 0;
}

snprintf(msgtemp, sizeof(msgtemp), "*** Profile %.16s ***", 
      account_get_name(account)),
  message_send_text(c,message_type_error,c,msgtemp);
  
  snprintf(msgtemp, sizeof(msgtemp), "Login: %-16.16s "UID_FORMAT"", 
      account_get_name(account),
      account_get_uid(account)),
  message_send_text(c,message_type_info,c,msgtemp);
  
  message_send_text(c,message_type_info,c,"ServerName: Zeloit");
    
  snprintf(msgtemp, sizeof(msgtemp), "Grade: %.14s                BotName: %.14s", 
      account_get_grade(account),
      account_get_botname(account)),
  message_send_text(c,message_type_info,c,msgtemp);
  
  snprintf(msgtemp, sizeof(msgtemp), "Status: %.14s                Lenght: %.14s",
      account_get_status(account),
      account_get_lenght(account)),
  message_send_text(c,message_type_info,c,msgtemp);
  
  snprintf(msgtemp, sizeof(msgtemp), "Sex: %.14s                Age: %.14s",
      account_get_sex(account),
      account_get_age(account)),
  message_send_text(c,message_type_info,c,msgtemp);

extern char const * account_get_grade(t_account * account)
{
    char const * temp;

    if (!account)
    {
    eventlog(eventlog_level_error,__FUNCTION__,"got NULL account");
    return NULL;
    }

    if (!(temp = account_get_strattr(account,"profile\\grade")))
    return "";
    return temp;
}

extern int account_set_auth_lock(t_account * account, int val)
{
    char const * temp;

    if (!account)
    {
    eventlog(eventlog_level_error,__FUNCTION__,"got NULL account");
    return NULL;
    }

    if (!(temp = account_set_strattr(account,"profile\\grade")))
    return "";
    return temp;
}