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57 lines
1.9 KiB
57 lines
1.9 KiB
=pod
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=head1 NAME
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des_read_password, des_read_2passwords, des_read_pw_string, des_read_pw -
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Compatibility user interface functions
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=head1 SYNOPSIS
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#include <openssl/des_old.h>
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int des_read_password(DES_cblock *key,const char *prompt,int verify);
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int des_read_2passwords(DES_cblock *key1,DES_cblock *key2,
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const char *prompt,int verify);
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int des_read_pw_string(char *buf,int length,const char *prompt,int verify);
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int des_read_pw(char *buf,char *buff,int size,const char *prompt,int verify);
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=head1 DESCRIPTION
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The DES library contained a few routines to prompt for passwords. These
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aren't necessarely dependent on DES, and have therefore become part of the
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UI compatibility library.
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des_read_pw() writes the string specified by I<prompt> to standard output
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turns echo off and reads an input string from the terminal. The string is
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returned in I<buf>, which must have spac for at least I<size> bytes.
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If I<verify> is set, the user is asked for the password twice and unless
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the two copies match, an error is returned. The second password is stored
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in I<buff>, which must therefore also be at least I<size> bytes. A return
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code of -1 indicates a system error, 1 failure due to use interaction, and
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0 is success. All other functions described here use des_read_pw() to do
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the work.
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des_read_pw_string() is a variant of des_read_pw() that provides a buffer
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for you if I<verify> is set.
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des_read_password() calls des_read_pw() and converts the password to a
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DES key by calling DES_string_to_key(); des_read_2password() operates in
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the same way as des_read_password() except that it generates two keys
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by using the DES_string_to_2key() function.
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=head1 NOTES
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des_read_pw_string() is available in the MIT Kerberos library as well, and
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is also available under the name EVP_read_pw_string().
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=head1 SEE ALSO
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L<ui(3)|ui(3)>, L<ui_create(3)|ui_create(3)>
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=head1 AUTHOR
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Richard Levitte (richard@levitte.org) for the OpenSSL project
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(http://www.openssl.org).
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=cut
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