GETTTYENT

NAME
SYNOPSIS
DESCRIPTION
ATTRIBUTES
CONFORMING TO
NOTES
SEE ALSO
COLOPHON

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).

Image grohtml-209581.png

CONFORMING TO

Not in POSIX.1-2001. 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

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