Providing an alternative TERMINFO environment variable

[Igor Todorovski]

Hi,

 

I’m an IBM z/OS mainframe developer. On z/OS, we have an existing TERMINFO db that is in EBCDIC format and z/OS already check for TERMINFO, but I would like to provide a way to override that with a different environment variable so as to instruct ncurses where to check for the ascii terminfo.

 

I have added the below code to enable setting ASCII_TERMINFO. I’m not sure if the environment variable name is reasonable or not, but the z/OS system default checks for TERMINFO so I needed a way to tell ncurses where to pick up tis terminfo db.

 

Is there a better alternative?

 

  /*

   * Record the "official" location of the terminfo directory, according to

   * the place where we're writing to, or the normal default, if not.

   */

  NCURSES_EXPORT(const char *)

  _nc_tic_dir(const char *path)

  {

      T(("_nc_tic_dir %s", NonNull(path)));

      if (!KeepTicDirectory) {

    if (path != NULL) {

        if (path != TicDirectory)

      update_tic_dir(strdup(path));

        HaveTicDirectory = TRUE;

    } else if (HaveTicDirectory == 0) {

        if (use_terminfo_vars()) {

      const char *envp;

+ #ifdef __MVS__

+     if ((envp = getenv("ASCII_TERMINFO")) != 0)

+         return _nc_tic_dir(envp);

+     if ((envp = getenv("TERMINFO")) != 0)

+ #else

      if ((envp = getenv("TERMINFO")) != 0)

+ #endif

          return _nc_tic_dir(envp);

        }

    }

      }

      return TicDirectory ? TicDirectory : TERMINFO;

  }