Various typo

[openssl.git] / doc / man3 / UI_new.pod

diff --git a/doc/man3/UI_new.pod b/doc/man3/UI_new.pod
index c5ebfddc89ac913362aad62b774a760f1a5df745..3f622ec8ff987c06b188df4623276bd5d614d715 100644 (file)
--- a/doc/man3/UI_new.pod
+++ b/doc/man3/UI_new.pod
@@ -7,9 +7,10 @@ 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_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, UI_null - user interface
+UI_add_user_data, UI_dup_user_data, UI_get0_user_data, UI_get0_result,
+UI_get_result_length,
+UI_process, UI_ctrl, UI_set_default_method, UI_get_default_method,
+UI_get_method, UI_set_method, UI_OpenSSL, UI_null - user interface

 
 =head1 SYNOPSIS
 
 
 =head1 SYNOPSIS
 


@@ -22,19 +23,21 @@ UI_set_method, UI_OpenSSL, UI_null - user interface
  void UI_free(UI *ui);
 
  int UI_add_input_string(UI *ui, const char *prompt, int flags,
  void UI_free(UI *ui);
 
  int UI_add_input_string(UI *ui, const char *prompt, int flags,

-        char *result_buf, int minsize, int maxsize);
+                         char *result_buf, int minsize, int maxsize);

  int UI_dup_input_string(UI *ui, const char *prompt, int flags,
  int UI_dup_input_string(UI *ui, const char *prompt, int flags,

-        char *result_buf, int minsize, int maxsize);
+                         char *result_buf, int minsize, int maxsize);

  int UI_add_verify_string(UI *ui, const char *prompt, int flags,
  int UI_add_verify_string(UI *ui, const char *prompt, int flags,

-        char *result_buf, int minsize, int maxsize, const char *test_buf);
+                          char *result_buf, int minsize, int maxsize,
+                          const char *test_buf);

  int UI_dup_verify_string(UI *ui, const char *prompt, int flags,
  int UI_dup_verify_string(UI *ui, const char *prompt, int flags,

-        char *result_buf, int minsize, int maxsize, const char *test_buf);
+                          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,
  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);
+                          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,
  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);
+                          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_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);


@@ -44,9 +47,11 @@ UI_set_method, UI_OpenSSL, UI_null - user interface
         const char *object_desc, const char *object_name);
 
  void *UI_add_user_data(UI *ui, void *user_data);
         const char *object_desc, const char *object_name);
 
  void *UI_add_user_data(UI *ui, void *user_data);

+ int UI_dup_user_data(UI *ui, void *user_data);

  void *UI_get0_user_data(UI *ui);
 
  const char *UI_get0_result(UI *ui, int i);
  void *UI_get0_user_data(UI *ui);
 
  const char *UI_get0_result(UI *ui, int i);

+ int UI_get_result_length(UI *ui, int i);

 
  int UI_process(UI *ui);
 
 
  int UI_process(UI *ui);
 


@@ -76,15 +81,18 @@ carry out the actual prompting.
 The first thing to do is to create a UI with UI_new() or UI_new_method(),
 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
 The first thing to do is to create a UI with UI_new() or UI_new_method(),
 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 UI method doesn't care
-about these data, but other methods might.  Finally, use UI_process()
-to actually perform the prompting and UI_get0_result() to find the result
-to the prompt.
+through calls to UI_add_user_data() or UI_dup_user_data().  The default
+UI method doesn't care about these data, but other methods might.  Finally,
+use UI_process() to actually perform the prompting and UI_get0_result()
+and UI_get_result_length() to find the result to the prompt and its length.

 
 A UI 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
 
 A UI 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 UI_get0_result().
+result with UI_get0_result() and UI_get_result_length().
+
+UI_process() can be called more than once on the same UI, thereby allowing
+a UI to have a long lifetime, but can just as well have a short lifetime.

 
 The functions are as follows:
 
 
 The functions are as follows:
 


@@ -94,10 +102,13 @@ this UI, it should be freed using UI_free().
 UI_new_method() creates a new UI using the given UI method.  When done with
 this UI, it should be freed using UI_free().
 
 UI_new_method() creates a new UI using the given UI method.  When done with
 this UI, it should be freed using UI_free().
 

-UI_OpenSSL() returns the built-in UI 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.
+UI_OpenSSL() returns the built-in UI method (note: not necessarily 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.
+
+UI_null() returns a UI method that does nothing.  Its use is to avoid
+getting internal defaults for passed UI_METHOD pointers.

 
 UI_free() removes a UI from memory, along with all other pieces of memory
 that's connected to it, like duplicated input strings, results and others.
 
 UI_free() removes a UI from memory, along with all other pieces of memory
 that's connected to it, like duplicated input strings, results and others.


@@ -146,17 +157,27 @@ description "pass phrase" and the file name "foo.key", that becomes
 string and may include encodings that will be processed by the other
 method functions.
 
 string and may include encodings that will be processed by the other
 method functions.
 

-UI_add_user_data() adds a piece of memory for the method to use at any
+UI_add_user_data() adds a user data pointer for the method to use at any

 time.  The builtin UI 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.
 
 time.  The builtin UI 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.
 

+UI_dup_user_data() duplicates the user data and works as an alternative
+to UI_add_user_data() when the user data needs to be preserved for a longer
+duration, perhaps even the lifetime of the application.  The UI object takes
+ownership of this duplicate and will free it whenever it gets replaced or
+the UI is destroyed.  UI_dup_user_data() returns 0 on success, or -1 on memory
+allocation failure or if the method doesn't have a duplicator function.
+

 UI_get0_user_data() retrieves the data that has last been given to the
 UI_get0_user_data() retrieves the data that has last been given to the

-UI with UI_add_user_data().
+UI with UI_add_user_data() or UI_dup_user_data.

 
 UI_get0_result() returns a pointer to the result buffer associated with
 the information indexed by I<i>.
 
 
 UI_get0_result() returns a pointer to the result buffer associated with
 the information indexed by I<i>.
 

+UI_get_result_length() returns the length of the result buffer associated with
+the information indexed by I<i>.
+

 UI_process() goes through the information given so far, does all the printing
 and prompting and returns the final status, which is -2 on out-of-band events
 (Interrupt, Cancel, ...), -1 on error and 0 on success.
 UI_process() goes through the information given so far, does all the printing
 and prompting and returns the final status, which is -2 on out-of-band events
 (Interrupt, Cancel, ...), -1 on error and 0 on success.


@@ -177,11 +198,21 @@ UI_get_method() returns the UI method associated with a given UI.
 
 UI_set_method() changes the UI method associated with a given UI.
 
 
 UI_set_method() changes the UI method associated with a given UI.
 

-UI_OpenSSL() is the default OpenSSL UI method for prompting
-passphrases on the command line.
+=head1 NOTES

 
 

-UI_null() is a UI method that does nothing.  Its use is to avoid
-getting internal defaults for passed UI_METHOD pointers.
+The resulting strings that the built in method UI_OpenSSL() generate
+are assumed to be encoded according to the current locale or (for
+Windows) code page.
+For applications having different demands, these strings need to be
+converted appropriately by the caller.
+For Windows, if the OPENSSL_WIN32_UTF8 environment variable is set,
+the built-in method UI_OpenSSL() will produce UTF-8 encoded strings
+instead.
+
+=head1 HISTORY
+
+UI_dup_user_data()
+was added in OpenSSL 1.1.1.

 
 =head1 COPYRIGHT
 
 
 =head1 COPYRIGHT