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7.2.9 Terminals and Ptys

   Scheme Procedure: isatty? port[12] ¶
   C Function: scm_isatty_p (port)[13] ¶
          Return #t if port is using a serial non-file device, otherwise #f.

   Scheme Procedure: ttyname port[14] ¶
   C Function: scm_ttyname (port)[15] ¶
          Return a string with the name of the serial terminal device underlying
          port.

   Scheme Procedure: ctermid[16] ¶
   C Function: scm_ctermid ()[17] ¶
          Return a string containing the file name of the controlling terminal for
          the current process.

   Scheme Procedure: tcgetpgrp port[18] ¶
   C Function: scm_tcgetpgrp (port)[19] ¶
          Return the process group ID of the foreground process group associated
          with the terminal open on the file descriptor underlying port.

          If there is no foreground process group, the return value is a number
          greater than 1 that does not match the process group ID of any existing
          process group. This can happen if all of the processes in the job that was
          formerly the foreground job have terminated, and no other job has yet been
          moved into the foreground.

   Scheme Procedure: tcsetpgrp port pgid[20] ¶
   C Function: scm_tcsetpgrp (port, pgid)[21] ¶
          Set the foreground process group ID for the terminal used by the file
          descriptor underlying port to the integer pgid. The calling process must
          be a member of the same session as pgid and must have the same controlling
          terminal. The return value is unspecified.
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References

   1. http://www.gnu.org/software/guile/manual/html_node/index.html
   2. http://www.gnu.org/software/guile/manual/html_node/Concept-Index.html
   3. http://www.gnu.org/software/guile/manual/html_node/index.html#SEC_Contents
   4. http://www.gnu.org/software/guile/manual/html_node/POSIX.html
   5. http://www.gnu.org/software/guile/manual/html_node/Pipes.html
   6. http://www.gnu.org/software/guile/manual/html_node/Signals.html
   7. http://www.gnu.org/software/guile/manual/html_node/Pipes.html
   8. http://www.gnu.org/software/guile/manual/html_node/Signals.html
   9. http://www.gnu.org/software/guile/manual/html_node/POSIX.html
  10. http://www.gnu.org/software/guile/manual/html_node/index.html#SEC_Contents
  11. http://www.gnu.org/software/guile/manual/html_node/Concept-Index.html
  12. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-isatty_003f
  13. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-scm_005fisatty_005fp
  14. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-ttyname
  15. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-scm_005fttyname
  16. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-ctermid
  17. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-scm_005fctermid
  18. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-tcgetpgrp
  19. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-scm_005ftcgetpgrp
  20. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-tcsetpgrp
  21. http://www.gnu.org/software/guile/manual/html_node/Terminals-and-Ptys.html#index-scm_005ftcsetpgrp
  22. http://www.gnu.org/software/guile/manual/html_node/Pipes.html
  23. http://www.gnu.org/software/guile/manual/html_node/Signals.html
  24. http://www.gnu.org/software/guile/manual/html_node/POSIX.html
  25. http://www.gnu.org/software/guile/manual/html_node/index.html#SEC_Contents
  26. http://www.gnu.org/software/guile/manual/html_node/Concept-Index.html