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APPS: Make it possible for apps to set the base (fallback) UI_METHOD

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The apps UI method acts as a proxy that bases its activity on a base
(was called fallback) UI_METHOD, which defaults to UI_OpenSSL() under
normal circumstances.

However, some apps might want to have it based on another UI_METHOD,
such as UI_null() to avoid prompting (typical for a -batch run).  The
new function set_base_ui_method() allows them to do precisely this.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13512)
This commit is contained in:
Richard Levitte 2020-11-25 14:10:29 +01:00
parent e3197e5ab2
commit a6a5dec611
2 changed files with 18 additions and 9 deletions
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3
apps/include/apps_ui.h
View File

@ -21,7 +21,8 @@ int password_callback(char *buf, int bufsiz, int verify, PW_CB_DATA *cb_data);
int setup_ui_method(void);
void destroy_ui_method(void);
UI_METHOD *get_ui_method(void);
int set_base_ui_method(const UI_METHOD *ui_method);
const UI_METHOD *get_ui_method(void);
extern BIO *bio_err;

24
apps/lib/apps_ui.c
View File

@ -13,11 +13,11 @@
#include "apps_ui.h"
static UI_METHOD *ui_method = NULL;
static const UI_METHOD *ui_fallback_method = NULL;
static const UI_METHOD *ui_base_method = NULL;
static int ui_open(UI *ui)
{
int (*opener)(UI *ui) = UI_method_get_opener(ui_fallback_method);
int (*opener)(UI *ui) = UI_method_get_opener(ui_base_method);
if (opener != NULL)
return opener(ui);
@ -51,7 +51,7 @@ static int ui_read(UI *ui, UI_STRING *uis)
}
}
reader = UI_method_get_reader(ui_fallback_method);
reader = UI_method_get_reader(ui_base_method);
if (reader != NULL)
return reader(ui, uis);
/* Default to the empty password if we've got nothing better */
@ -84,7 +84,7 @@ static int ui_write(UI *ui, UI_STRING *uis)
}
}
writer = UI_method_get_writer(ui_fallback_method);
writer = UI_method_get_writer(ui_base_method);
if (writer != NULL)
return writer(ui, uis);
return 1;
@ -92,7 +92,7 @@ static int ui_write(UI *ui, UI_STRING *uis)
static int ui_close(UI *ui)
{
int (*closer)(UI *ui) = UI_method_get_closer(ui_fallback_method);
int (*closer)(UI *ui) = UI_method_get_closer(ui_base_method);
if (closer != NULL)
return closer(ui);
@ -112,11 +112,19 @@ static char *ui_prompt_construct(UI *ui, const char *phrase_desc,
return UI_construct_prompt(NULL, phrase_desc, object_name);
}
int set_base_ui_method(const UI_METHOD *ui_meth)
{
if (ui_meth == NULL)
ui_meth = UI_null();
ui_base_method = ui_meth;
return 1;
}
int setup_ui_method(void)
{
ui_fallback_method = UI_null();
ui_base_method = UI_null();
#ifndef OPENSSL_NO_UI_CONSOLE
ui_fallback_method = UI_OpenSSL();
ui_base_method = UI_OpenSSL();
#endif
ui_method = UI_create_method("OpenSSL application user interface");
return ui_method != NULL
@ -136,7 +144,7 @@ void destroy_ui_method(void)
}
}
UI_METHOD *get_ui_method(void)
const UI_METHOD *get_ui_method(void)
{
return ui_method;
}