Libc-763.11.tar.gz

[apple/libc.git] / gen / getpass.3

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-.\" Copyright (c) 1989, 1991, 1993
-.\"    The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"    This product includes software developed by the University of
-.\"    California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"     @(#)getpass.3  8.1 (Berkeley) 6/4/93
-.\" $FreeBSD: src/lib/libc/gen/getpass.3,v 1.9 2001/10/01 16:08:51 ru Exp $
-.\"
-.Dd June 4, 1993
-.Dt GETPASS 3
-.Os
-.Sh NAME
-.Nm getpass
-.Nd get a password
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In pwd.h
-.In unistd.h
-.Ft char *
-.Fn getpass "const char *prompt"
-.Sh DESCRIPTION
-The
-.Fn getpass
-function displays a prompt to, and reads in a password from,
-.Pa /dev/tty .
-If this file is not accessible,
-.Fn getpass
-displays the prompt on the standard error output and reads from the standard
-input.
-.Pp
-The password may be up to _PASSWORD_LEN (currently 128)
-characters in length.
-Any additional
-characters and the terminating newline character are discarded.
-.Pp
-The
-.Fn getpass
-function turns off character echoing while reading the password.
-.Sh RETURN VALUES
-The
-.Fn getpass
-function returns a pointer to the null terminated password.
-.Sh FILES
-.Bl -tag -width /dev/tty -compact
-.It Pa /dev/tty
-.El
-.Sh SEE ALSO
-.Xr crypt 3
-.Sh HISTORY
-A
-.Fn getpass
-function appeared in
-.At v7 .
-.Sh BUGS
-The
-.Fn getpass
-function leaves its result in an internal static object and returns
-a pointer to that object.
-Subsequent calls to
-.Fn getpass
-will modify the same object.
-.Pp
-The calling process should zero the password as soon as possible to
-avoid leaving the cleartext password visible in the process's address
-space.
-.Pp
-Upon receipt of a SIGTSTP, the input buffer will be flushed, so any
-partially typed password must be retyped when the process
-continues.

diff --git a/gen/getpass.3 b/gen/getpass.3
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index 0000000000000000000000000000000000000000..c9ce40afd9fb37c5687b45a4e90730df5769b4e1
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+./getpass.3
\ No newline at end of file