getttynam man page on Kali

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GETTTYENT(3)		   Linux Programmer's Manual		  GETTTYENT(3)

NAME
       getttyent, getttynam, setttyent, endttyent - get ttys file entry

SYNOPSIS
       #include <ttyent.h>

       struct ttyent *getttyent(void);

       struct ttyent *getttynam(const char *name);

       int setttyent(void);

       int endttyent(void);

DESCRIPTION
       These  functions	 provide  an  interface	 to the file _PATH_TTYS (e.g.,
       /etc/ttys).

       The function setttyent() opens the file or rewinds it if already open.

       The function endttyent() closes the file.

       The function getttynam() searches for a	given  terminal	 name  in  the
       file.  It returns a pointer to a ttyent structure (description below).

       The  function  getttyent() opens the file _PATH_TTYS (if necessary) and
       returns the first entry.	 If the file is already open, the next	entry.
       The ttyent structure has the form:

	   struct ttyent {
	       char *ty_name;	  /* terminal device name */
	       char *ty_getty;	  /* command to execute, usually getty */
	       char *ty_type;	  /* terminal type for termcap */
	       int   ty_status;	  /* status flags */
	       char *ty_window;	  /* command to start up window manager */
	       char *ty_comment;  /* comment field */
	   };

       ty_status can be:

	   #define TTY_ON     0x01  /* enable logins (start ty_getty program) */
	   #define TTY_SECURE 0x02  /* allow UID 0 to login */

ATTRIBUTES
       For   an	  explanation	of   the  terms	 used  in  this	 section,  see
       attributes(7).

       ┌──────────────────────────┬───────────────┬───────────────────────┐
       │Interface		  │ Attribute	  │ Value		  │
       ├──────────────────────────┼───────────────┼───────────────────────┤
       │getttyent(), setttyent(), │ Thread safety │ MT-Unsafe race:ttyent │
       │endttyent(), getttynam()  │		  │			  │
       └──────────────────────────┴───────────────┴───────────────────────┘
CONFORMING TO
       Not in POSIX.1.	Present on the BSDs, and perhaps other systems.

NOTES
       Under Linux, the file /etc/ttys, and the functions described above, are
       not used.

SEE ALSO
       ttyname(3), ttyslot(3)

COLOPHON
       This page is part of release 4.14 of the Linux  man-pages  project.   A
       description  of	the project, information about reporting bugs, and the
       latest	 version    of	  this	  page,	   can	   be	  found	    at
       https://www.kernel.org/doc/man-pages/.

GNU				  2017-09-15			  GETTTYENT(3)
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