[Announce] GPGME 0.4.1 released
Marcus Brinkmann
Marcus.Brinkmann at ruhr-uni-bochum.de
Fri Jun 6 15:30:02 CEST 2003
We are pleased to announce version 0.4.1 of GnuPG Made Easy,
a library designed to make access to GnuPG easier for applications.
It may be found in the file (about 705 KB compressed)
ftp://ftp.gnupg.org/gcrypt/alpha/gpgme/gpgme-0.4.1.tar.gz.
It should soon appear on the mirrors listed at
http://www.gnupg.org/mirrors.html.
Bug reports and requests for assistance should be sent to
gnupg-devel at gnupg.org.
The md5sum checksums for this distibution are
a1bbbf4cb23e66799fcd638c1d9437d1 gpgme-0.4.1.tar.gz
4e72820a640cfb6fa6f6a253b631e3ee gpgme-0.4.1.tar.gz.sig
PLEASE NOTE: This is an unstable development version for testing.
The latest stable release is 0.3.15 and available from
ftp://ftp.gnupg.org/gcrypt/gpgme/.
Noteworthy changes in version 0.4.1 (2003-06-06)
------------------------------------------------
This is the release that 0.4.0 should have been. There are many
interface changes, please see below for the details. The changes are
sometimes the result of new functionality, but more often express a
paradigm shift. Others are an overdue cleanup to get GPGME in line
with the GNU coding standards and to make the interface more
self-consistent. Here is an overview on the changes:
All types have been renamed to conform to the GNU coding standards,
most of the time by keeping the whole name in lowercase and inserting
underscores between words.
All operations consistently only accept input parameters in their
invocation function, and return only an error code directly. Further
information about the result of the operation has to be retrieved
afterwards by calling one of the result functions. This unifies the
synchronous and the asynchronous interface.
The error values have been completely replaced by a more
sophisticated model that allows GPGME to transparently and accurately
report all errors from the other GnuPG components, irregardless of
process boundaries. This is achieved by using the library
libgpg-errors, which is shared by all GnuPG components. This library
is now required for GPGME.
The results of all operations are now provided by pointers to C
structs rather than by XML structs or in other ways.
Objects which used to be opaque (for example a key) are now pointers
to accessible structs, so no accessor functions are necessary.
Backward compatibility is provided where it was possible without too
much effort and did not collide with the overall sanitization effort.
However, this is only for ease of transition. NO DEPRECATED FUNCTION
OR DATA TYPE IS CONSIDERED A PART OF THE API OR ABI AND WILL BE
DROPPED IN THE FUTURE WITHOUT CHANGING THE SONAME OF THE LIBRARY.
Recommendations how to replace deprecated or removed functionality
can be found within the description of each change.
What follows are all changes to the interface and behaviour of GPGME
in detail.
* If gpgme.h is included in sources compiled by GCC 3.1 or later,
deprecated attributes will warn about use of obsolete functions and
type definitions. You can suppress these warnings by passing
-Wno-deprecated-declarations to the gcc command.
* The following types have been renamed. The old types are still
available as aliases, but they are deprecated now:
Old name: New name:
GpgmeCtx gpgme_ctx_t
GpgmeData gpgme_data_t
GpgmeError gpgme_error_t
GpgmeDataEncoding gpgme_data_encoding_t
GpgmeSigStat gpgme_sig_stat_t
GpgmeSigMode gpgme_sig_mode_t
GpgmeAttr gpgme_attr_t
GpgmeValidity gpgme_validity_t
GpgmeProtocol gpgme_protocol_t
GpgmeKey gpgme_key_t
GpgmePassphraseCb gpgme_passphrase_cb_t
GpgmeProgressCb gpgme_progress_cb_t
GpgmeIOCb gpgme_io_cb_t
GpgmeRegisterIOCb gpgme_register_io_cb_t
GpgmeRemoveIOCb gpgme_remove_io_cb_t
GpgmeEventIO gpgme_event_io_t
GpgmeEventIOCb gpgme_event_io_cb_t
GpgmeIOCbs gpgme_io_cbs
GpgmeDataReadCb gpgme_data_read_cb_t
GpgmeDataWriteCb gpgme_data_write_cb_t
GpgmeDataSeekCb gpgme_data_seek_cb_t
GpgmeDataReleaseCb gpgme_data_release_cb_t
GpgmeDataCbs gpgme_data_cbs_t
GpgmeTrustItem gpgme_trust_item_t
GpgmeStatusCode gpgme_status_code_t
* gpgme_error_t is now identical to gpg_error_t, the error type
provided by libgpg-error. More about using libgpg-error with GPGME
can be found in the manual. All error symbols have been removed!
* All functions and types in libgpg-error have been wrapped in GPGME.
The new types are gpgme_err_code_t and gpgme_err_source_t. The new
functions are gpgme_err_code, gpgme_err_source, gpgme_error,
gpgme_err_make, gpgme_error_from_errno, gpgme_err_make_from_errno,
gpgme_err_code_from_errno, gpgme_err_code_to_errno,
gpgme_strsource.
* GPGME_ATTR_IS_SECRET is not anymore representable as a string.
* GnuPG 1.2.2 is required. The progress callback is now also invoked
for encrypt, sign, encrypt-sign, decrypt, verify, and
decrypt-verify operations. For verify operations on detached
signatures, the progress callback is invoked for both the detached
signature and the plaintext message, though.
* gpgme_passphrase_cb_t has been changed to not provide a complete
description, but the UID hint, passphrase info and a flag
indicating if this is a repeated attempt individually, so the user
can compose his own description from this information.
The passphrase is not returned as a C string, but must be written
to a file descriptor directly. This allows for secure passphrase
entries.
The return type has been changed to gpgme_error_t value. This
allowed to remove the gpgme_cancel function; just return
the error code GPG_ERR_CANCELED in the passphrase callback directly.
* gpgme_edit_cb_t has been changed to take a file descriptor argument.
The user is expected to write the response to the file descriptor,
followed by a newline.
* The recipients interface has been removed. Instead, you use
NULL-terminated lists of keys for specifying the recipients of an
encryption operation. Use the new encryption flag
GPGME_ENCRYPT_ALWAYS_TRUST if you want to override the validity of
the keys (but note that in general this is not a good idea).
This change has been made to the prototypes of gpgme_op_encrypt,
gpgme_op_encrypt_start, gpgme_op_encrypt_sign and
gpgme_op_encrypt_sign_start.
The export interface has been changed to use pattern strings like
the keylist interface. Thus, new functions gpgme_op_export_ext and
gpgme_op_export_ext_start have been added as well. Now the
prototypes of gpgme_op_export_start and gpgme_op_export finally
make sense.
* gpgme_op_verify and gpgme_op_decrypt_verify don't return a status
summary anymore. Use gpgme_get_sig_status to retrieve the individual
stati.
* gpgme_io_cb_t changed from a void function to a function returning
a gpgme_error_t value. However, it will always return 0, so you
can safely ignore the return value.
* A new I/O callback event GPGME_EVENT_START has been added. The new
requirement is that you must wait until this event until you are
allowed to call the I/O callback handlers previously registered for
this context operation. Calling I/O callback functions for this
context operation before the start event happened is unsafe because
it can lead to race conditions in a multi-threaded environment.
* The idle function feature has been removed. It was not precisely
defined in a multi-threaded environment and is obsoleted by the
user I/O callback functions. If you still need a simple way to
call something while waiting on one or multiple asynchronous
operations to complete, don't set the HANG flag in gpgme_wait (note
that this will return to your program more often than the idle
function did).
* gpgme_wait can return NULL even if hang is true, if an error
occurs. In that case *status contains the error code.
* gpgme_get_engine_info was radically changed. Instead an XML
string, an info structure of the new type gpgme_engine_info_t is
returned. This makes it easier and more robust to evaluate the
information in an application.
* The new function gpgme_get_protocol_name can be used to convert a
gpgme_protocol_t value into a string.
* The status of a context operation is not checked anymore. Starting
a new operation will silently cancel the previous one. Calling a
function that requires you to have started an operation before without
doing so is undefined.
* The FPR argument to gpgme_op_genkey was removed. Instead, use the
gpgme_op_genkey_result function to retrieve a gpgme_genkey_result_t
pointer to a structure which contains the fingerprint. This also
works with gpgme_op_genkey_start. The structure also provides
other information about the generated keys.
So, instead:
char *fpr;
err = gpgme_op_genkey (ctx, NULL, NULL, &fpr);
if (!err && fpr)
printf ("%s\n", fpr);
you should now do:
gpgme_genkey_result_t result;
err = gpgme_op_genkey (ctx, NULL, NULL);
if (!err)
{
result = gpgme_op_genkey_result (ctx);
if (result->fpr)
printf ("%s\n", result->fpr);
}
* The new gpgme_op_import_result function provides detailed
information about the result of an import operation in
gpgme_import_result_t and gpgme_import_status_t objects.
Thus, the gpgme_op_import_ext variant is deprecated.
* The new gpgme_op_sign_result function provides detailed information
about the result of a signing operation in gpgme_sign_result_t,
gpgme_invalid_key_t and gpgme_new_signature_t objects.
* The new gpgme_op_encrypt_result function provides detailed
information about the result of an encryption operation in
a GpgmeEncryptResult object.
* The new gpgme_op_decrypt_result function provides detailed
information about the result of a decryption operation in
a GpgmeDecryptResult object.
* The new gpgme_op_verify_result function provides detailed
information about the result of an verify operation in
a GpgmeVerifyResult object. Because of this, the GPGME_SIG_STAT_*
values, gpgme_get_sig_status, gpgme_get_sig_ulong_attr,
gpgme_get_sig_string_attr and gpgme_get_sig_key are now deprecated,
and gpgme_get_notation is removed.
* GpgmeTrustItem objects have now directly accessible data, so the
gpgme_trust_item_get_string_attr and gpgme_trust_item_get_ulong_attr
accessor functions are deprecated. Also, reference counting is
available through gpgme_trust_item_ref and gpgme_trust_item_unref
(the gpgme_trust_item_release alias for the latter is deprecated).
* Keys are not cached internally anymore, so the force_update argument
to gpgme_get_key has been removed.
* GpgmeKey objects have now directly accessible data so the
gpgme_key_get_string_attr, gpgme_key_get_ulong_attr,
gpgme_key_sig_get_string_attr and gpgme_key_sig_get_ulong_attr
functions are deprecated. Also, gpgme_key_release is now
deprecated. The gpgme_key_get_as_xml function has been dropped.
* Because all interfaces using attributes are deprecated, the
GpgmeAttr data type is also deprecated.
* The new gpgme_op_keylist_result function provides detailed
information about the result of a key listing operation in
a GpgmeKeyListResult object.
* Now that each function comes with its own result retrieval
interface, the generic gpgme_get_op_info interface is not useful
anymore and dropped.
* The type and mode of data objects is not available anymore.
* Interface changes relative to the 0.4.0 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GpgmeCtx DEPRECATED: Use gpgme_ctx_t.
GpgmeData DEPRECATED: Use gpgme_data_t.
GpgmeError DEPRECATED: Use gpgme_error_t.
GpgmeDataEncoding DEPRECATED: Use gpgme_data_encoding_t.
GpgmeSigStat DEPRECATED: Use gpgme_sig_stat_t.
GpgmeSigMode DEPRECATED: Use gpgme_sig_mode_t.
GpgmeAttr DEPRECATED: Use gpgme_attr_t.
GpgmeValidity DEPRECATED: Use gpgme_validity_t.
GpgmeProtocol DEPRECATED: Use gpgme_protocol_t.
GpgmeKey DEPRECATED: Use gpgme_key_t.
GpgmePassphraseCb DEPRECATED: Use gpgme_passphrase_cb_t.
GpgmeProgressCb DEPRECATED: Use gpgme_progress_cb_t.
GpgmeIOCb DEPRECATED: Use gpgme_io_cb_t.
GpgmeRegisterIOCb DEPRECATED: Use gpgme_register_io_cb_t.
GpgmeRemoveIOCb DEPRECATED: Use gpgme_remove_io_cb_t.
GpgmeEventIO DEPRECATED: Use gpgme_event_io_t.
GpgmeEventIOCb DEPRECATED: Use gpgme_event_io_cb_t.
GpgmeIOCbs DEPRECATED: Use gpgme_io_cbs.
GpgmeDataReadCb DEPRECATED: Use gpgme_data_read_cb_t.
GpgmeDataWriteCb DEPRECATED: Use gpgme_data_write_cb_t.
GpgmeDataSeekCb DEPRECATED: Use gpgme_data_seek_cb_t.
GpgmeDataReleaseCb DEPRECATED: Use gpgme_data_release_cb_t.
GpgmeDataCbs DEPRECATED: Use gpgme_data_cbs_t.
GpgmeTrustItem DEPRECATED: Use gpgme_trust_item_t.
GpgmeStatusCode DEPRECATED: Use gpgme_status_code_t.
gpgme_ctx_t NEW
gpgme_data_t NEW
gpgme_recipients_t NEW
gpgme_error_t NEW
gpgme_data_encoding_t NEW
gpgme_sig_stat_t NEW
gpgme_sig_mode_t NEW
gpgme_attr_t NEW
gpgme_validity_t NEW
gpgme_protocol_t NEW
gpgme_key_t NEW
gpgme_passphrase_cb_t NEW
gpgme_progress_cb_t NEW
gpgme_io_cb_t NEW
gpgme_register_io_cb_t NEW
gpgme_remove_io_cb_t NEW
gpgme_event_io_t NEW
gpgme_event_io_cb_t NEW
gpgme_io_cbs NEW
gpgme_data_read_cb_t NEW
gpgme_data_write_cb_t NEW
gpgme_data_seek_cb_t NEW
gpgme_data_release_cb_t NEW
gpgme_data_cbs_t NEW
gpgme_trust_item_t NEW
gpgme_status_code_t NEW
GPGME_{some error code} REMOVED! Use GPG_ERR_* from libgpg-error.
gpgme_err_code_t NEW
gpgme_err_source_t NEW
gpgme_err_code NEW
gpgme_err_source NEW
gpgme_error NEW
gpgme_err_make NEW
gpgme_error_from_errno NEW
gpgme_err_make_from_errno NEW
gpgme_err_code_from_errno NEW
gpgme_err_code_to_errno NEW
gpgme_strsource NEW
gpgme_io_cb_t CHANGED: Return type from void to GpgmeError.
gpgme_event_io_t CHANGED: New event type (all numbers changed).
gpgme_passphrase_cb_t CHANGED: Desc decomposed, write directly to FD.
gpgme_edit_cb_t CHANGED: Write directly to FD.
gpgme_key_get_string_attr CHANGED: Don't handle GPGME_ATTR_IS_SECRET.
gpgme_op_verify CHANGED: Drop R_STAT argument.
gpgme_op_decrypt_verify CHANGED: Drop R_STAT argument.
gpgme_wait CHANGED: Can return NULL even if hang is true.
GpgmeIdleFunc REMOVED
gpgme_register_idle REMOVED
GpgmeRecipients REMOVED
gpgme_recipients_new REMOVED
gpgme_recipients_release REMOVED
gpgme_recipients_add_name REMOVED
gpgme_recipients_add_name_with_validity REMOVED
gpgme_recipients_count REMOVED
gpgme_recipients_enum_open REMOVED
gpgme_recipients_enum_read REMOVED
gpgme_recipients_enum_close REMOVED
gpgme_encrypt_flags_t NEW
GPGME_ENCRYPT_ALWAYS_TRUST NEW
gpgme_op_encrypt CHANGED: Recipients passed as gpgme_key_t[].
gpgme_op_encrypt_start CHANGED: Recipients passed as gpgme_key_t[].
gpgme_op_encrypt_sign CHANGED: Recipients passed as gpgme_key_t[].
gpgme_op_encrypt_sign_start CHANGED: Recipients passed as gpgme_key_t[].
gpgme_op_export_start CHANGED: User IDs passed as patterns.
gpgme_op_export CHANGED: User IDs passed as patterns.
gpgme_op_export_ext_start NEW
gpgme_op_export_ext NEW
gpgme_keylist_mode_t NEW
gpgme_sigsum_t NEW
gpgme_engine_info_t NEW
gpgme_get_engine_info CHANGED: Return info structure instead XML.
gpgme_get_protocol_name NEW
gpgme_cancel REMOVED: Return error in callback directly.
gpgme_op_genkey CHANGED: FPR argument dropped.
gpgme_op_genkey_result NEW
gpgme_genkey_result_t NEW
gpgme_op_import_ext DEPRECATED: Use gpgme_op_import_result.
gpgme_op_import_result NEW
gpgme_import_status_t NEW
gpgme_import_result_t NEW
gpgme_pubkey_algo_t NEW
gpgme_hash_algo_t NEW
gpgme_invalid_key_t NEW
gpgme_new_signature_t NEW
gpgme_sign_result_t NEW
gpgme_op_sign_result NEW
gpgme_pubkey_algo_name NEW
gpgme_hash_algo_name NEW
gpgme_encrypt_result_t NEW
gpgme_op_encrypt_result NEW
gpgme_decrypt_result_t NEW
gpgme_op_decrypt_result NEW
gpgme_verify_result_t NEW
gpgme_op_verify_result NEW
gpgme_get_notation REMOVED: Access verify result directly instead.
gpgme_get_sig_key DEPRECATED: Use gpgme_get_key with fingerprint.
gpgme_get_sig_ulong_attr DEPRECATED: Use verify result directly.
gpgme_get_sig_string_attr DEPRECATED: Use verify result directly.
GPGME_SIG_STAT_* DEPRECATED: Use error value in sig status.
gpgme_get_sig_status DEPRECATED: Use verify result directly.
gpgme_trust_item_t CHANGED: Now has user accessible data members.
gpgme_trust_item_ref NEW
gpgme_trust_item_unref NEW
gpgme_trust_item_release DEPRECATED: Use gpgme_trust_item_unref.
gpgme_trust_item_get_string_attr DEPRECATED
gpgme_trust_item_get_ulong_attr DEPRECATED
gpgme_get_key CHANGED: Removed force_update argument.
gpgme_sub_key_t NEW
gpgme_key_sig_t NEW
gpgme_user_id_t NEW
gpgme_key_t CHANGED: Now has user accessible data members.
gpgme_key_get_string_attr DEPRECATED
gpgme_key_get_ulong_attr DEPRECATED
gpgme_key_sig_get_string_attr DEPRECATED
gpgme_key_sig_get_ulong_attr DEPRECATED
gpgme_key_get_as_xml REMOVED
gpgme_key_list_result_t NEW
gpgme_op_keylist_result NEW
gpgme_get_op_info REMOVED
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Marcus Brinkmann
mb at g10code.de
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