.\" -*- mode: troff; coding: utf-8 -*-
.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
.ie n \{\
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\" ========================================================================
.\"
.IX Title "ui_compat 3"
.TH ui_compat 3 2019-12-20 1.0.2u OpenSSL
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH NAME
des_read_password, des_read_2passwords, des_read_pw_string, des_read_pw \-
Compatibility user interface functions
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/des_old.h>
\&
\& int des_read_password(DES_cblock *key,const char *prompt,int verify);
\& int des_read_2passwords(DES_cblock *key1,DES_cblock *key2,
\&        const char *prompt,int verify);
\&
\& int des_read_pw_string(char *buf,int length,const char *prompt,int verify);
\& int des_read_pw(char *buf,char *buff,int size,const char *prompt,int verify);
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
The DES library contained a few routines to prompt for passwords.  These
aren't necessarely dependent on DES, and have therefore become part of the
UI compatibility library.
.PP
\&\fBdes_read_pw()\fR writes the string specified by \fIprompt\fR to standard output
turns echo off and reads an input string from the terminal.  The string is
returned in \fIbuf\fR, which must have spac for at least \fIsize\fR bytes.
If \fIverify\fR is set, the user is asked for the password twice and unless
the two copies match, an error is returned.  The second password is stored
in \fIbuff\fR, which must therefore also be at least \fIsize\fR bytes.  A return
code of \-1 indicates a system error, 1 failure due to use interaction, and
0 is success.  All other functions described here use \fBdes_read_pw()\fR to do
the work.
.PP
\&\fBdes_read_pw_string()\fR is a variant of \fBdes_read_pw()\fR that provides a buffer
for you if \fIverify\fR is set.
.PP
\&\fBdes_read_password()\fR calls \fBdes_read_pw()\fR and converts the password to a
DES key by calling \fBDES_string_to_key()\fR; \fBdes_read_2password()\fR operates in
the same way as \fBdes_read_password()\fR except that it generates two keys
by using the \fBDES_string_to_2key()\fR function.
.SH NOTES
.IX Header "NOTES"
\&\fBdes_read_pw_string()\fR is available in the MIT Kerberos library as well, and
is also available under the name \fBEVP_read_pw_string()\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBui\fR\|(3), \fBui_create\fR\|(3)
.SH AUTHOR
.IX Header "AUTHOR"
Richard Levitte (richard@levitte.org) for the OpenSSL project
(http://www.openssl.org).