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UI_UTIL_READ_PW(3ossl) OpenSSL UI_UTIL_READ_PW(3ossl)
NAME
UI_UTIL_read_pw_string, UI_UTIL_read_pw, UI_UTIL_wrap_read_pem_callback
- user interface utilities
SYNOPSIS
#include <openssl/ui.h>
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);
UI_METHOD *UI_UTIL_wrap_read_pem_callback(pem_password_cb *cb, int rwflag);
DESCRIPTION
UI_UTIL_read_pw_string() asks for a passphrase, using prompt as a
prompt, and stores it in buf. The maximum allowed size is given with
length, including the terminating NUL byte. If verify is nonzero, the
password will be verified as well.
UI_UTIL_read_pw() does the same as UI_UTIL_read_pw_string(), the
difference is that you can give it an external buffer buff for the
verification passphrase.
UI_UTIL_wrap_read_pem_callback() can be used to create a temporary
UI_METHOD that wraps a given PEM password callback cb. rwflag is used
to specify if this method will be used for passphrase entry without (0)
or with (1) verification. When not used any more, the returned method
should be freed with UI_destroy_method().
NOTES
UI_UTIL_read_pw_string() and UI_UTIL_read_pw() use default UI_METHOD.
See UI_get_default_method(3) and friends for more information.
The result from the UI_METHOD created by
UI_UTIL_wrap_read_pem_callback() will generate password strings in the
encoding that the given password callback generates. The default
password prompting functions (apart from UI_UTIL_read_pw_string() and
UI_UTIL_read_pw(), there is PEM_def_callback(), EVP_read_pw_string()
and EVP_read_pw_string_min()) all use the default UI_METHOD.
RETURN VALUES
UI_UTIL_read_pw_string() and UI_UTIL_read_pw() return 0 on success or a
negative value on error.
UI_UTIL_wrap_read_pem_callback() returns a valid UI_METHOD structure or
NULL if an error occurred.
SEE ALSO
UI_get_default_method(3)
COPYRIGHT
Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at