5 UI_STRING, UI_string_types, UI_get_string_type,
6 UI_get_input_flags, UI_get0_output_string,
7 UI_get0_action_string, UI_get0_result_string, UI_get_result_string_length,
8 UI_get0_test_string, UI_get_result_minsize,
9 UI_get_result_maxsize, UI_set_result, UI_set_result_ex
10 - User interface string parsing
14 #include <openssl/ui.h>
16 typedef struct ui_string_st UI_STRING;
18 enum UI_string_types {
20 UIT_PROMPT, /* Prompt for a string */
21 UIT_VERIFY, /* Prompt for a string and verify */
22 UIT_BOOLEAN, /* Prompt for a yes/no response */
23 UIT_INFO, /* Send info to the user */
24 UIT_ERROR /* Send an error message to the user */
27 enum UI_string_types UI_get_string_type(UI_STRING *uis);
28 int UI_get_input_flags(UI_STRING *uis);
29 const char *UI_get0_output_string(UI_STRING *uis);
30 const char *UI_get0_action_string(UI_STRING *uis);
31 const char *UI_get0_result_string(UI_STRING *uis);
32 int UI_get_result_string_length(UI_STRING *uis);
33 const char *UI_get0_test_string(UI_STRING *uis);
34 int UI_get_result_minsize(UI_STRING *uis);
35 int UI_get_result_maxsize(UI_STRING *uis);
36 int UI_set_result(UI *ui, UI_STRING *uis, const char *result);
37 int UI_set_result_ex(UI *ui, UI_STRING *uis, const char *result, int len);
41 The B<UI_STRING> gets created internally and added to a B<UI> whenever
42 one of the functions UI_add_input_string(), UI_dup_input_string(),
43 UI_add_verify_string(), UI_dup_verify_string(),
44 UI_add_input_boolean(), UI_dup_input_boolean(), UI_add_info_string(),
45 UI_dup_info_string(), UI_add_error_string() or UI_dup_error_string()
47 For a B<UI_METHOD> user, there's no need to know more.
48 For a B<UI_METHOD> creator, it is of interest to fetch text from these
49 B<UI_STRING> objects as well as adding results to some of them.
51 UI_get_string_type() is used to retrieve the type of the given
54 UI_get_input_flags() is used to retrieve the flags associated with the
57 UI_get0_output_string() is used to retrieve the actual string to
58 output (prompt, info, error, ...).
60 UI_get0_action_string() is used to retrieve the action description
61 associated with a B<UIT_BOOLEAN> type B<UI_STRING>.
62 For all other B<UI_STRING> types, NULL is returned.
63 See L<UI_add_input_boolean(3)>.
65 UI_get0_result_string() and UI_get_result_string_length() are used to
66 retrieve the result of a prompt and its length.
67 This is only useful for B<UIT_PROMPT> and B<UIT_VERIFY> type strings.
68 For all other B<UI_STRING> types, UI_get0_result_string() returns NULL
69 and UI_get_result_string_length() returns -1.
71 UI_get0_test_string() is used to retrieve the string to compare the
73 This is only useful for B<UIT_VERIFY> type strings.
74 For all other B<UI_STRING> types, NULL is returned.
76 UI_get_result_minsize() and UI_get_result_maxsize() are used to
77 retrieve the minimum and maximum required size of the result.
78 This is only useful for B<UIT_PROMPT> and B<UIT_VERIFY> type strings.
79 For all other B<UI_STRING> types, -1 is returned.
81 UI_set_result_ex() is used to set the result value of a prompt and its length.
82 For B<UIT_PROMPT> and B<UIT_VERIFY> type UI strings, this sets the
83 result retrievable with UI_get0_result_string() by copying the
84 contents of B<result> if its length fits the minimum and maximum size
86 For B<UIT_BOOLEAN> type UI strings, this sets the first character of
87 the result retrievable with UI_get0_result_string() to the first
88 B<ok_char> given with UI_add_input_boolean() or UI_dup_input_boolean()
89 if the B<result> matched any of them, or the first of the
90 B<cancel_chars> if the B<result> matched any of them, otherwise it's
91 set to the NUL char C<\0>.
92 See L<UI_add_input_boolean(3)> for more information on B<ok_chars> and
95 UI_set_result() does the same thing as UI_set_result_ex(), but calculates
96 its length internally.
97 It expects the string to be terminated with a NUL byte, and is therefore
98 only useful with normal C strings.
102 UI_get_string_type() returns the UI string type.
104 UI_get_input_flags() returns the UI string flags.
106 UI_get0_output_string() returns the UI string output string.
108 UI_get0_action_string() returns the UI string action description
109 string for B<UIT_BOOLEAN> type UI strings, NULL for any other type.
111 UI_get0_result_string() returns the UI string result buffer for
112 B<UIT_PROMPT> and B<UIT_VERIFY> type UI strings, NULL for any other
115 UI_get_result_string_length() returns the UI string result buffer's
116 content length for B<UIT_PROMPT> and B<UIT_VERIFY> type UI strings,
117 -1 for any other type.
119 UI_get0_test_string() returns the UI string action description
120 string for B<UIT_VERIFY> type UI strings, NULL for any other type.
122 UI_get_result_minsize() returns the minimum allowed result size for
123 the UI string for B<UIT_PROMPT> and B<UIT_VERIFY> type strings,
124 -1 for any other type.
126 UI_get_result_maxsize() returns the minimum allowed result size for
127 the UI string for B<UIT_PROMPT> and B<UIT_VERIFY> type strings,
128 -1 for any other type.
130 UI_set_result() returns 0 on success or when the UI string is of any
131 type other than B<UIT_PROMPT>, B<UIT_VERIFY> or B<UIT_BOOLEAN>, -1 on
140 Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
142 Licensed under the OpenSSL license (the "License"). You may not use
143 this file except in compliance with the License. You can obtain a copy
144 in the file LICENSE in the source distribution or at
145 L<https://www.openssl.org/source/license.html>.