344 lines
13 KiB
Groff
344 lines
13 KiB
Groff
.\" $NetBSD: openssl_ui.3,v 1.2 2004/03/20 21:48:47 groo Exp $
|
|
.\"
|
|
.\" Automatically generated by Pod::Man version 1.15
|
|
.\" Sat Mar 20 16:41:16 2004
|
|
.\"
|
|
.\" Standard preamble:
|
|
.\" ======================================================================
|
|
.de Sh \" Subsection heading
|
|
.br
|
|
.if t .Sp
|
|
.ne 5
|
|
.PP
|
|
\fB\\$1\fR
|
|
.PP
|
|
..
|
|
.de Sp \" Vertical space (when we can't use .PP)
|
|
.if t .sp .5v
|
|
.if n .sp
|
|
..
|
|
.de Ip \" List item
|
|
.br
|
|
.ie \\n(.$>=3 .ne \\$3
|
|
.el .ne 3
|
|
.IP "\\$1" \\$2
|
|
..
|
|
.de Vb \" Begin verbatim text
|
|
.ft CW
|
|
.nf
|
|
.ne \\$1
|
|
..
|
|
.de Ve \" End verbatim text
|
|
.ft R
|
|
|
|
.fi
|
|
..
|
|
.\" Set up some character translations and predefined strings. \*(-- will
|
|
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
|
.\" double quote, and \*(R" will give a right double quote. | will give a
|
|
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used
|
|
.\" to do unbreakable dashes and therefore won't be available. \*(C` and
|
|
.\" \*(C' expand to `' in nroff, nothing in troff, for use with C<>
|
|
.tr \(*W-|\(bv\*(Tr
|
|
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
|
.ie n \{\
|
|
. ds -- \(*W-
|
|
. ds PI pi
|
|
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
|
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
|
. ds L" ""
|
|
. ds R" ""
|
|
. ds C` ""
|
|
. ds C' ""
|
|
'br\}
|
|
.el\{\
|
|
. ds -- \|\(em\|
|
|
. ds PI \(*p
|
|
. ds L" ``
|
|
. ds R" ''
|
|
'br\}
|
|
.\"
|
|
.\" If the F register is turned on, we'll generate index entries on stderr
|
|
.\" for titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and
|
|
.\" index entries marked with X<> in POD. Of course, you'll have to process
|
|
.\" the output yourself in some meaningful fashion.
|
|
.if \nF \{\
|
|
. de IX
|
|
. tm Index:\\$1\t\\n%\t"\\$2"
|
|
..
|
|
. nr % 0
|
|
. rr F
|
|
.\}
|
|
.\"
|
|
.\" For nroff, turn off justification. Always turn off hyphenation; it
|
|
.\" makes way too many mistakes in technical documents.
|
|
.hy 0
|
|
.if n .na
|
|
.\"
|
|
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
|
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
|
.bd B 3
|
|
. \" fudge factors for nroff and troff
|
|
.if n \{\
|
|
. ds #H 0
|
|
. ds #V .8m
|
|
. ds #F .3m
|
|
. ds #[ \f1
|
|
. ds #] \fP
|
|
.\}
|
|
.if t \{\
|
|
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
|
. ds #V .6m
|
|
. ds #F 0
|
|
. ds #[ \&
|
|
. ds #] \&
|
|
.\}
|
|
. \" simple accents for nroff and troff
|
|
.if n \{\
|
|
. ds ' \&
|
|
. ds ` \&
|
|
. ds ^ \&
|
|
. ds , \&
|
|
. ds ~ ~
|
|
. ds /
|
|
.\}
|
|
.if t \{\
|
|
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
|
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
|
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
|
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
|
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
|
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
|
.\}
|
|
. \" troff and (daisy-wheel) nroff accents
|
|
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
|
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
|
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
|
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
|
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
|
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
|
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
|
.ds ae a\h'-(\w'a'u*4/10)'e
|
|
.ds Ae A\h'-(\w'A'u*4/10)'E
|
|
. \" corrections for vroff
|
|
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
|
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
|
. \" for low resolution devices (crt and lpr)
|
|
.if \n(.H>23 .if \n(.V>19 \
|
|
\{\
|
|
. ds : e
|
|
. ds 8 ss
|
|
. ds o a
|
|
. ds d- d\h'-1'\(ga
|
|
. ds D- D\h'-1'\(hy
|
|
. ds th \o'bp'
|
|
. ds Th \o'LP'
|
|
. ds ae ae
|
|
. ds Ae AE
|
|
.\}
|
|
.rm #[ #] #H #V #F C
|
|
.\" ======================================================================
|
|
.\"
|
|
.IX Title "ui 3"
|
|
.TH ui 3 "0.9.7d" "2004-03-19" "OpenSSL"
|
|
.UC
|
|
.SH "NAME"
|
|
UI_new, UI_new_method, UI_free, UI_add_input_string, UI_dup_input_string,
|
|
UI_add_verify_string, UI_dup_verify_string, UI_add_input_boolean,
|
|
UI_dup_input_boolean, UI_add_info_string, UI_dup_info_string,
|
|
UI_add_error_string, UI_dup_error_string, UI_construct_prompt,
|
|
UI_add_user_data, UI_get0_user_data, UI_get0_result, UI_process,
|
|
UI_ctrl, UI_set_default_method, UI_get_default_method, UI_get_method,
|
|
UI_set_method, UI_OpenSSL, ERR_load_UI_strings \- New User Interface
|
|
.SH "LIBRARY"
|
|
libcrypto, -lcrypto
|
|
.SH "SYNOPSIS"
|
|
.IX Header "SYNOPSIS"
|
|
.Vb 1
|
|
\& #include <openssl/ui.h>
|
|
.Ve
|
|
.Vb 2
|
|
\& typedef struct ui_st UI;
|
|
\& typedef struct ui_method_st UI_METHOD;
|
|
.Ve
|
|
.Vb 3
|
|
\& UI *UI_new(void);
|
|
\& UI *UI_new_method(const UI_METHOD *method);
|
|
\& void UI_free(UI *ui);
|
|
.Ve
|
|
.Vb 18
|
|
\& int UI_add_input_string(UI *ui, const char *prompt, int flags,
|
|
\& char *result_buf, int minsize, int maxsize);
|
|
\& int UI_dup_input_string(UI *ui, const char *prompt, int flags,
|
|
\& char *result_buf, int minsize, int maxsize);
|
|
\& int UI_add_verify_string(UI *ui, const char *prompt, int flags,
|
|
\& char *result_buf, int minsize, int maxsize, const char *test_buf);
|
|
\& int UI_dup_verify_string(UI *ui, const char *prompt, int flags,
|
|
\& char *result_buf, int minsize, int maxsize, const char *test_buf);
|
|
\& int UI_add_input_boolean(UI *ui, const char *prompt, const char *action_desc,
|
|
\& const char *ok_chars, const char *cancel_chars,
|
|
\& int flags, char *result_buf);
|
|
\& int UI_dup_input_boolean(UI *ui, const char *prompt, const char *action_desc,
|
|
\& const char *ok_chars, const char *cancel_chars,
|
|
\& int flags, char *result_buf);
|
|
\& int UI_add_info_string(UI *ui, const char *text);
|
|
\& int UI_dup_info_string(UI *ui, const char *text);
|
|
\& int UI_add_error_string(UI *ui, const char *text);
|
|
\& int UI_dup_error_string(UI *ui, const char *text);
|
|
.Ve
|
|
.Vb 3
|
|
\& /* These are the possible flags. They can be or'ed together. */
|
|
\& #define UI_INPUT_FLAG_ECHO 0x01
|
|
\& #define UI_INPUT_FLAG_DEFAULT_PWD 0x02
|
|
.Ve
|
|
.Vb 2
|
|
\& char *UI_construct_prompt(UI *ui_method,
|
|
\& const char *object_desc, const char *object_name);
|
|
.Ve
|
|
.Vb 2
|
|
\& void *UI_add_user_data(UI *ui, void *user_data);
|
|
\& void *UI_get0_user_data(UI *ui);
|
|
.Ve
|
|
.Vb 1
|
|
\& const char *UI_get0_result(UI *ui, int i);
|
|
.Ve
|
|
.Vb 1
|
|
\& int UI_process(UI *ui);
|
|
.Ve
|
|
.Vb 3
|
|
\& int UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f)());
|
|
\& #define UI_CTRL_PRINT_ERRORS 1
|
|
\& #define UI_CTRL_IS_REDOABLE 2
|
|
.Ve
|
|
.Vb 4
|
|
\& void UI_set_default_method(const UI_METHOD *meth);
|
|
\& const UI_METHOD *UI_get_default_method(void);
|
|
\& const UI_METHOD *UI_get_method(UI *ui);
|
|
\& const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth);
|
|
.Ve
|
|
.Vb 1
|
|
\& UI_METHOD *UI_OpenSSL(void);
|
|
.Ve
|
|
.SH "DESCRIPTION"
|
|
.IX Header "DESCRIPTION"
|
|
\&\s-1UI\s0 stands for User Interface, and is general purpose set of routines to
|
|
prompt the user for text-based information. Through user-written methods
|
|
(see ui_create(3)), prompting can be done in any way
|
|
imaginable, be it plain text prompting, through dialog boxes or from a
|
|
cell phone.
|
|
.PP
|
|
All the functions work through a context of the type \s-1UI\s0. This context
|
|
contains all the information needed to prompt correctly as well as a
|
|
reference to a \s-1UI_METHOD\s0, which is an ordered vector of functions that
|
|
carry out the actual prompting.
|
|
.PP
|
|
The first thing to do is to create a \s-1UI\s0 with \fIUI_new()\fR or \fIUI_new_method()\fR,
|
|
then add information to it with the UI_add or UI_dup functions. Also,
|
|
user-defined random data can be passed down to the underlying method
|
|
through calls to UI_add_user_data. The default \s-1UI\s0 method doesn't care
|
|
about these data, but other methods might. Finally, use \fIUI_process()\fR
|
|
to actually perform the prompting and \fIUI_get0_result()\fR to find the result
|
|
to the prompt.
|
|
.PP
|
|
A \s-1UI\s0 can contain more than one prompt, which are performed in the given
|
|
sequence. Each prompt gets an index number which is returned by the
|
|
UI_add and UI_dup functions, and has to be used to get the corresponding
|
|
result with \fIUI_get0_result()\fR.
|
|
.PP
|
|
The functions are as follows:
|
|
.PP
|
|
\&\fIUI_new()\fR creates a new \s-1UI\s0 using the default \s-1UI\s0 method. When done with
|
|
this \s-1UI\s0, it should be freed using \fIUI_free()\fR.
|
|
.PP
|
|
\&\fIUI_new_method()\fR creates a new \s-1UI\s0 using the given \s-1UI\s0 method. When done with
|
|
this \s-1UI\s0, it should be freed using \fIUI_free()\fR.
|
|
.PP
|
|
\&\fIUI_OpenSSL()\fR returns the built-in \s-1UI\s0 method (note: not the default one,
|
|
since the default can be changed. See further on). This method is the
|
|
most machine/OS dependent part of OpenSSL and normally generates the
|
|
most problems when porting.
|
|
.PP
|
|
\&\fIUI_free()\fR removes a \s-1UI\s0 from memory, along with all other pieces of memory
|
|
that's connected to it, like duplicated input strings, results and others.
|
|
.PP
|
|
\&\fIUI_add_input_string()\fR and \fIUI_add_verify_string()\fR add a prompt to the \s-1UI\s0,
|
|
as well as flags and a result buffer and the desired minimum and maximum
|
|
sizes of the result. The given information is used to prompt for
|
|
information, for example a password, and to verify a password (i.e. having
|
|
the user enter it twice and check that the same string was entered twice).
|
|
\&\fIUI_add_verify_string()\fR takes and extra argument that should be a pointer
|
|
to the result buffer of the input string that it's supposed to verify, or
|
|
verification will fail.
|
|
.PP
|
|
\&\fIUI_add_input_boolean()\fR adds a prompt to the \s-1UI\s0 that's supposed to be answered
|
|
in a boolean way, with a single character for yes and a different character
|
|
for no. A set of characters that can be used to cancel the prompt is given
|
|
as well. The prompt itself is really divided in two, one part being the
|
|
descriptive text (given through the \fIprompt\fR argument) and one describing
|
|
the possible answers (given through the \fIaction_desc\fR argument).
|
|
.PP
|
|
\&\fIUI_add_info_string()\fR and \fIUI_add_error_string()\fR add strings that are shown at
|
|
the same time as the prompt for extra information or to show an error string.
|
|
The difference between the two is only conceptual. With the builtin method,
|
|
there's no technical difference between them. Other methods may make a
|
|
difference between them, however.
|
|
.PP
|
|
The flags currently supported are \s-1UI_INPUT_FLAG_ECHO\s0, which is relevant for
|
|
\&\fIUI_add_input_string()\fR and will have the users response be echoed (when
|
|
prompting for a password, this flag should obviously not be used, and
|
|
\&\s-1UI_INPUT_FLAG_DEFAULT_PWD\s0, which means that a default password of some
|
|
sort will be used (completely depending on the application and the \s-1UI\s0
|
|
method).
|
|
.PP
|
|
\&\fIUI_dup_input_string()\fR, \fIUI_dup_verify_string()\fR, \fIUI_dup_input_boolean()\fR,
|
|
\&\fIUI_dup_info_string()\fR and \fIUI_dup_error_string()\fR are basically the same
|
|
as their UI_add counterparts, except that they make their own copies
|
|
of all strings.
|
|
.PP
|
|
\&\fIUI_construct_prompt()\fR is a helper function that can be used to create
|
|
a prompt from two pieces of information: an description and a name.
|
|
The default constructor (if there is none provided by the method used)
|
|
creates a string "Enter \fIdescription\fR for \fIname\fR:\*(L". With the
|
|
description \*(R"pass phrase\*(L" and the file name \*(R"foo.key\*(L", that becomes
|
|
\&\*(R"Enter pass phrase for foo.key:". Other methods may create whatever
|
|
string and may include encodings that will be processed by the other
|
|
method functions.
|
|
.PP
|
|
\&\fIUI_add_user_data()\fR adds a piece of memory for the method to use at any
|
|
time. The builtin \s-1UI\s0 method doesn't care about this info. Note that several
|
|
calls to this function doesn't add data, it replaces the previous blob
|
|
with the one given as argument.
|
|
.PP
|
|
\&\fIUI_get0_user_data()\fR retrieves the data that has last been given to the
|
|
\&\s-1UI\s0 with \fIUI_add_user_data()\fR.
|
|
.PP
|
|
\&\fIUI_get0_result()\fR returns a pointer to the result buffer associated with
|
|
the information indexed by \fIi\fR.
|
|
.PP
|
|
\&\fIUI_process()\fR goes through the information given so far, does all the printing
|
|
and prompting and returns.
|
|
.PP
|
|
\&\fIUI_ctrl()\fR adds extra control for the application author. For now, it
|
|
understands two commands: \s-1UI_CTRL_PRINT_ERRORS\s0, which makes \fIUI_process()\fR
|
|
print the OpenSSL error stack as part of processing the \s-1UI\s0, and
|
|
\&\s-1UI_CTRL_IS_REDOABLE\s0, which returns a flag saying if the used \s-1UI\s0 can
|
|
be used again or not.
|
|
.PP
|
|
\&\fIUI_set_default_method()\fR changes the default \s-1UI\s0 method to the one given.
|
|
.PP
|
|
\&\fIUI_get_default_method()\fR returns a pointer to the current default \s-1UI\s0 method.
|
|
.PP
|
|
\&\fIUI_get_method()\fR returns the \s-1UI\s0 method associated with a given \s-1UI\s0.
|
|
.PP
|
|
\&\fIUI_set_method()\fR changes the \s-1UI\s0 method associated with a given \s-1UI\s0.
|
|
.SH "SEE ALSO"
|
|
.IX Header "SEE ALSO"
|
|
ui_create(3), ui_compat(3)
|
|
.SH "HISTORY"
|
|
.IX Header "HISTORY"
|
|
The \s-1UI\s0 section was first introduced in OpenSSL 0.9.7.
|
|
.SH "AUTHOR"
|
|
.IX Header "AUTHOR"
|
|
Richard Levitte (richard@levitte.org) for the OpenSSL project
|
|
(http://www.openssl.org).
|