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135 .\" ========================================================================
137 .IX Title "ui_compat 3"
138 .TH ui_compat 3 "2009-07-19" "1.0.1n" "OpenSSL"
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144 des_read_password, des_read_2passwords, des_read_pw_string, des_read_pw \-
145 Compatibility user interface functions
149 .IX Header "SYNOPSIS"
151 \& #include <openssl/des_old.h>
153 \& int des_read_password(DES_cblock *key,const char *prompt,int verify);
154 \& int des_read_2passwords(DES_cblock *key1,DES_cblock *key2,
155 \& const char *prompt,int verify);
157 \& int des_read_pw_string(char *buf,int length,const char *prompt,int verify);
158 \& int des_read_pw(char *buf,char *buff,int size,const char *prompt,int verify);
161 .IX Header "DESCRIPTION"
162 The \s-1DES\s0 library contained a few routines to prompt for passwords. These
163 aren't necessarely dependent on \s-1DES,\s0 and have therefore become part of the
164 \&\s-1UI\s0 compatibility library.
166 \&\fIdes_read_pw()\fR writes the string specified by \fIprompt\fR to standard output
167 turns echo off and reads an input string from the terminal. The string is
168 returned in \fIbuf\fR, which must have spac for at least \fIsize\fR bytes.
169 If \fIverify\fR is set, the user is asked for the password twice and unless
170 the two copies match, an error is returned. The second password is stored
171 in \fIbuff\fR, which must therefore also be at least \fIsize\fR bytes. A return
172 code of \-1 indicates a system error, 1 failure due to use interaction, and
173 0 is success. All other functions described here use \fIdes_read_pw()\fR to do
176 \&\fIdes_read_pw_string()\fR is a variant of \fIdes_read_pw()\fR that provides a buffer
177 for you if \fIverify\fR is set.
179 \&\fIdes_read_password()\fR calls \fIdes_read_pw()\fR and converts the password to a
180 \&\s-1DES\s0 key by calling \fIDES_string_to_key()\fR; \fIdes_read_2password()\fR operates in
181 the same way as \fIdes_read_password()\fR except that it generates two keys
182 by using the \fIDES_string_to_2key()\fR function.
185 \&\fIdes_read_pw_string()\fR is available in the \s-1MIT\s0 Kerberos library as well, and
186 is also available under the name \fIEVP_read_pw_string()\fR.
188 .IX Header "SEE ALSO"
189 \&\fIui\fR\|(3), \fIui_create\fR\|(3)
192 Richard Levitte (richard@levitte.org) for the OpenSSL project
193 (http://www.openssl.org).