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  • LINUX man pages
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    The following form allows you to view linux man pages.

    Command:

    setttyent

    
    
    

    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

       Multithreading (see pthreads(7))
           The  getttyent() function returns a pointer to a static variable, so it
           is not thread-safe.
    
           The setttyent() and endttyent() functions use  a  static  variable,  so
           they are not thread-safe.
    
           The getttynam() function calls thread-unsafe function getttyent() so it
           is not thread-safe.
    
    
    

    CONFORMING TO

    
    
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