+++ /dev/null
-/* crypto/ui/ui.h -*- mode:C; c-file-style: "eay" -*- */
-/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
- * project 2001.
- */
-/* ====================================================================
- * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-#ifndef HEADER_UI_H
-#define HEADER_UI_H
-
-#ifndef OPENSSL_NO_DEPRECATED
-#include <openssl/crypto.h>
-#endif
-#include <openssl/safestack.h>
-#include <openssl/ossl_typ.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Declared already in ossl_typ.h */
-/* typedef struct ui_st UI; */
-/* typedef struct ui_method_st UI_METHOD; */
-
-
-/* All the following functions return -1 or NULL on error and in some cases
- (UI_process()) -2 if interrupted or in some other way cancelled.
- When everything is fine, they return 0, a positive value or a non-NULL
- pointer, all depending on their purpose. */
-
-/* Creators and destructor. */
-UI *UI_new(void);
-UI *UI_new_method(const UI_METHOD *method);
-void UI_free(UI *ui);
-
-/* The following functions are used to add strings to be printed and prompt
- strings to prompt for data. The names are UI_{add,dup}_<function>_string
- and UI_{add,dup}_input_boolean.
-
- UI_{add,dup}_<function>_string have the following meanings:
- add add a text or prompt string. The pointers given to these
- functions are used verbatim, no copying is done.
- dup make a copy of the text or prompt string, then add the copy
- to the collection of strings in the user interface.
- <function>
- The function is a name for the functionality that the given
- string shall be used for. It can be one of:
- input use the string as data prompt.
- verify use the string as verification prompt. This
- is used to verify a previous input.
- info use the string for informational output.
- error use the string for error output.
- Honestly, there's currently no difference between info and error for the
- moment.
-
- UI_{add,dup}_input_boolean have the same semantics for "add" and "dup",
- and are typically used when one wants to prompt for a yes/no response.
-
-
- All of the functions in this group take a UI and a prompt string.
- The string input and verify addition functions also take a flag argument,
- a buffer for the result to end up with, a minimum input size and a maximum
- input size (the result buffer MUST be large enough to be able to contain
- the maximum number of characters). Additionally, the verify addition
- functions takes another buffer to compare the result against.
- The boolean input functions take an action description string (which should
- be safe to ignore if the expected user action is obvious, for example with
- a dialog box with an OK button and a Cancel button), a string of acceptable
- characters to mean OK and to mean Cancel. The two last strings are checked
- to make sure they don't have common characters. Additionally, the same
- flag argument as for the string input is taken, as well as a result buffer.
- The result buffer is required to be at least one byte long. Depending on
- the answer, the first character from the OK or the Cancel character strings
- will be stored in the first byte of the result buffer. No NUL will be
- added, so the result is *not* a string.
-
- On success, the all return an index of the added information. That index
- is usefull when retrieving results with UI_get0_result(). */
-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);
-
-/* These are the possible flags. They can be or'ed together. */
-/* Use to have echoing of input */
-#define UI_INPUT_FLAG_ECHO 0x01
-/* Use a default password. Where that password is found is completely
- up to the application, it might for example be in the user data set
- with UI_add_user_data(). It is not recommended to have more than
- one input in each UI being marked with this flag, or the application
- might get confused. */
-#define UI_INPUT_FLAG_DEFAULT_PWD 0x02
-
-/* The user of these routines may want to define flags of their own. The core
- UI won't look at those, but will pass them on to the method routines. They
- must use higher bits so they don't get confused with the UI bits above.
- UI_INPUT_FLAG_USER_BASE tells which is the lowest bit to use. A good
- example of use is this:
-
- #define MY_UI_FLAG1 (0x01 << UI_INPUT_FLAG_USER_BASE)
-
-*/
-#define UI_INPUT_FLAG_USER_BASE 16
-
-
-/* The following function helps construct a prompt. object_desc is a
- textual short description of the object, for example "pass phrase",
- and object_name is the name of the object (might be a card name or
- a file name.
- The returned string shall always be allocated on the heap with
- OPENSSL_malloc(), and need to be free'd with OPENSSL_free().
-
- If the ui_method doesn't contain a pointer to a user-defined prompt
- constructor, a default string is built, looking like this:
-
- "Enter {object_desc} for {object_name}:"
-
- So, if object_desc has the value "pass phrase" and object_name has
- the value "foo.key", the resulting string is:
-
- "Enter pass phrase for foo.key:"
-*/
-char *UI_construct_prompt(UI *ui_method,
- const char *object_desc, const char *object_name);
-
-
-/* The following function is used to store a pointer to user-specific data.
- Any previous such pointer will be returned and replaced.
-
- For callback purposes, this function makes a lot more sense than using
- ex_data, since the latter requires that different parts of OpenSSL or
- applications share the same ex_data index.
-
- Note that the UI_OpenSSL() method completely ignores the user data.
- Other methods may not, however. */
-void *UI_add_user_data(UI *ui, void *user_data);
-/* We need a user data retrieving function as well. */
-void *UI_get0_user_data(UI *ui);
-
-/* Return the result associated with a prompt given with the index i. */
-const char *UI_get0_result(UI *ui, int i);
-
-/* When all strings have been added, process the whole thing. */
-int UI_process(UI *ui);
-
-/* Give a user interface parametrised control commands. This can be used to
- send down an integer, a data pointer or a function pointer, as well as
- be used to get information from a UI. */
-int UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f)(void));
-
-/* The commands */
-/* Use UI_CONTROL_PRINT_ERRORS with the value 1 to have UI_process print the
- OpenSSL error stack before printing any info or added error messages and
- before any prompting. */
-#define UI_CTRL_PRINT_ERRORS 1
-/* Check if a UI_process() is possible to do again with the same instance of
- a user interface. This makes UI_ctrl() return 1 if it is redoable, and 0
- if not. */
-#define UI_CTRL_IS_REDOABLE 2
-
-
-/* Some methods may use extra data */
-#define UI_set_app_data(s,arg) UI_set_ex_data(s,0,arg)
-#define UI_get_app_data(s) UI_get_ex_data(s,0)
-int UI_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
- CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
-int UI_set_ex_data(UI *r,int idx,void *arg);
-void *UI_get_ex_data(UI *r, int idx);
-
-/* Use specific methods instead of the built-in one */
-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);
-
-/* The method with all the built-in thingies */
-UI_METHOD *UI_OpenSSL(void);
-
-
-/* ---------- For method writers ---------- */
-/* A method contains a number of functions that implement the low level
- of the User Interface. The functions are:
-
- an opener This function starts a session, maybe by opening
- a channel to a tty, or by opening a window.
- a writer This function is called to write a given string,
- maybe to the tty, maybe as a field label in a
- window.
- a flusher This function is called to flush everything that
- has been output so far. It can be used to actually
- display a dialog box after it has been built.
- a reader This function is called to read a given prompt,
- maybe from the tty, maybe from a field in a
- window. Note that it's called wth all string
- structures, not only the prompt ones, so it must
- check such things itself.
- a closer This function closes the session, maybe by closing
- the channel to the tty, or closing the window.
-
- All these functions are expected to return:
-
- 0 on error.
- 1 on success.
- -1 on out-of-band events, for example if some prompting has
- been canceled (by pressing Ctrl-C, for example). This is
- only checked when returned by the flusher or the reader.
-
- The way this is used, the opener is first called, then the writer for all
- strings, then the flusher, then the reader for all strings and finally the
- closer. Note that if you want to prompt from a terminal or other command
- line interface, the best is to have the reader also write the prompts
- instead of having the writer do it. If you want to prompt from a dialog
- box, the writer can be used to build up the contents of the box, and the
- flusher to actually display the box and run the event loop until all data
- has been given, after which the reader only grabs the given data and puts
- them back into the UI strings.
-
- All method functions take a UI as argument. Additionally, the writer and
- the reader take a UI_STRING.
-*/
-
-/* The UI_STRING type is the data structure that contains all the needed info
- about a string or a prompt, including test data for a verification prompt.
-*/
-typedef struct ui_string_st UI_STRING;
-DECLARE_STACK_OF(UI_STRING)
-
-/* The different types of strings that are currently supported.
- This is only needed by method authors. */
-enum UI_string_types
- {
- UIT_NONE=0,
- UIT_PROMPT, /* Prompt for a string */
- UIT_VERIFY, /* Prompt for a string and verify */
- UIT_BOOLEAN, /* Prompt for a yes/no response */
- UIT_INFO, /* Send info to the user */
- UIT_ERROR /* Send an error message to the user */
- };
-
-/* Create and manipulate methods */
-UI_METHOD *UI_create_method(char *name);
-void UI_destroy_method(UI_METHOD *ui_method);
-int UI_method_set_opener(UI_METHOD *method, int (*opener)(UI *ui));
-int UI_method_set_writer(UI_METHOD *method, int (*writer)(UI *ui, UI_STRING *uis));
-int UI_method_set_flusher(UI_METHOD *method, int (*flusher)(UI *ui));
-int UI_method_set_reader(UI_METHOD *method, int (*reader)(UI *ui, UI_STRING *uis));
-int UI_method_set_closer(UI_METHOD *method, int (*closer)(UI *ui));
-int UI_method_set_prompt_constructor(UI_METHOD *method, char *(*prompt_constructor)(UI* ui, const char* object_desc, const char* object_name));
-int (*UI_method_get_opener(UI_METHOD *method))(UI*);
-int (*UI_method_get_writer(UI_METHOD *method))(UI*,UI_STRING*);
-int (*UI_method_get_flusher(UI_METHOD *method))(UI*);
-int (*UI_method_get_reader(UI_METHOD *method))(UI*,UI_STRING*);
-int (*UI_method_get_closer(UI_METHOD *method))(UI*);
-char * (*UI_method_get_prompt_constructor(UI_METHOD *method))(UI*, const char*, const char*);
-
-/* The following functions are helpers for method writers to access relevant
- data from a UI_STRING. */
-
-/* Return type of the UI_STRING */
-enum UI_string_types UI_get_string_type(UI_STRING *uis);
-/* Return input flags of the UI_STRING */
-int UI_get_input_flags(UI_STRING *uis);
-/* Return the actual string to output (the prompt, info or error) */
-const char *UI_get0_output_string(UI_STRING *uis);
-/* Return the optional action string to output (the boolean promtp instruction) */
-const char *UI_get0_action_string(UI_STRING *uis);
-/* Return the result of a prompt */
-const char *UI_get0_result_string(UI_STRING *uis);
-/* Return the string to test the result against. Only useful with verifies. */
-const char *UI_get0_test_string(UI_STRING *uis);
-/* Return the required minimum size of the result */
-int UI_get_result_minsize(UI_STRING *uis);
-/* Return the required maximum size of the result */
-int UI_get_result_maxsize(UI_STRING *uis);
-/* Set the result of a UI_STRING. */
-int UI_set_result(UI *ui, UI_STRING *uis, const char *result);
-
-
-/* A couple of popular utility functions */
-int UI_UTIL_read_pw_string(char *buf,int length,const char *prompt,int verify);
-int UI_UTIL_read_pw(char *buf,char *buff,int size,const char *prompt,int verify);
-
-
-/* BEGIN ERROR CODES */
-/* The following lines are auto generated by the script mkerr.pl. Any changes
- * made after this point may be overwritten when the script is next run.
- */
-void ERR_load_UI_strings(void);
-
-/* Error codes for the UI functions. */
-
-/* Function codes. */
-#define UI_F_GENERAL_ALLOCATE_BOOLEAN 108
-#define UI_F_GENERAL_ALLOCATE_PROMPT 109
-#define UI_F_GENERAL_ALLOCATE_STRING 100
-#define UI_F_UI_CTRL 111
-#define UI_F_UI_DUP_ERROR_STRING 101
-#define UI_F_UI_DUP_INFO_STRING 102
-#define UI_F_UI_DUP_INPUT_BOOLEAN 110
-#define UI_F_UI_DUP_INPUT_STRING 103
-#define UI_F_UI_DUP_VERIFY_STRING 106
-#define UI_F_UI_GET0_RESULT 107
-#define UI_F_UI_NEW_METHOD 104
-#define UI_F_UI_SET_RESULT 105
-
-/* Reason codes. */
-#define UI_R_COMMON_OK_AND_CANCEL_CHARACTERS 104
-#define UI_R_INDEX_TOO_LARGE 102
-#define UI_R_INDEX_TOO_SMALL 103
-#define UI_R_NO_RESULT_BUFFER 105
-#define UI_R_RESULT_TOO_LARGE 100
-#define UI_R_RESULT_TOO_SMALL 101
-#define UI_R_UNKNOWN_CONTROL_COMMAND 106
-
-#ifdef __cplusplus
-}
-#endif
-#endif
projects / cassiopeia.git / blobdiff