GETPASS(3) BSD Library Functions Manual GETPASS(3)

NAME
     ggeettppaassss - get a password

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>
     ##iinncclluuddee <>

     char *
     ggeettppaassss(const char *prompt);

DESCRIPTION
     The ggeettppaassss() function displays a prompt to, and reads in a password
     from, /dev/tty.  If this file is not accessible, ggeettppaassss() displays the
     prompt on the standard error output and reads from the standard input.

     The password may be up to PASSWORDLEN (currently 128) characters in
     length.  Any additional characters and the terminating newline character
     are discarded.

     The ggeettppaassss() function turns off character echoing while reading the
     password.

RETURN VALUES
     The ggeettppaassss() function returns a pointer to the null terminated password.

FILES     /dev/tty

SEE ALSO
     crypt(3), readpassphrase(3)

HISTORY     A ggeettppaassss() function appeared in Version 7 AT&T UNIX.

BUGS
     The ggeettppaassss() function leaves its result in an internal static object and
     returns a pointer to that object.  Subsequent calls to ggeettppaassss() will
     modify the same object.

     The calling process should zero the password as soon as possible to avoid
     leaving the cleartext password visible in the process's address space.

     Upon receipt of a SIGTSTP, the input buffer will be flushed, so any par-
     tially typed password must be retyped when the process continues.

BSD                              June 4, 1993                              BSD