ttyname(3C) — Dell System V Release 4 Issue 2.2



ttyname(3C)            UNIX System V(C Development Set)             ttyname(3C)


NAME
      ttyname, isatty - find name of a terminal

SYNOPSIS
      #include <stdlib.h>

      char *ttyname (int fildes);

      int isatty (int fildes);

DESCRIPTION
      ttyname returns a pointer to a string containing the null-terminated path
      name of the terminal device associated with file descriptor fildes.

      isatty returns 1 if fildes is associated with a terminal device, 0
      otherwise.

FILES
      /dev/*

DIAGNOSTICS
      ttyname returns a NULL pointer if fildes does not describe a terminal
      device in directory /dev.

NOTES
      The return value points to static data whose content is overwritten by
      each call.



























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