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gpgme/gpgme/passphrase.c
Marcus Brinkmann 2c543f6a86 doc/ 
2003-01-29  Marcus Brinkmann  <marcus@g10code.de>

	* gpgme.texi (I/O Callback Interface): Document new even
	GPGME_EVENT_START.
	(Waiting For Completion): Document new possible return values.
	(I/O Callback Interface): Document return type of GpgmeIOCb.

gpgme/
2003-01-29  Marcus Brinkmann  <marcus@g10code.de>

	* context.h (gpgme_context_s): Remove member ERROR.
	* types.h (GpgmeStatusHandler): Change return type to GpgmeError.
	(GpgmeCommandHandler): Change return type to GpgmeError and add
	new argument RESULT.
	* gpgme.h (GpgmeIOCb): Change return type to GpgmeError.
	(GpgmeEventIO): New event GPGME_EVENT_START.
	(GpgmeIdleFunc): Remove type.
	(gpgme_register_idle): Remove prototype.
	* data.c: Include <assert.h>.
	(_gpgme_data_inbound_handler): Change return type to GpgmeError.
	Return any error instead ignoring it, don't close file descriptor
	on error.
	(_gpgme_data_outbound_handler): Likewise.
	* decrypt.c: Do not include <stdio.h>, <string.h> and <assert.h>.
	(_gpgme_decrypt_status_handler): Change return type to GpgmeError.
	Return error instead setting ctx->error.  Return success at end of
	function.
	(gpgme_op_decrypt): Don't work around the old kludge anymore.
	* decrypt-verify.c (decrypt_verify_status_handler): Change return
	type to GpgmeError.  Return possible errors.
	* delete.c: Do not include <stdio.h>, <string.h>, <time.h> and
	<assert.h>.
	(delete_status_handler): Change return type to GpgmeError.  Return
	error instead setting ctx->error.  Return success at end of
	function.
	* edit.c: Do not include <stdio.h> and <string.h>.
	(_gpgme_edit_status_handler): Change type to GpgmeError,
	make static and rename to ...
	(edit_status_handler): ... this.  Return error directly.
	(command_handler): Change return type to GpgmeError, add result
	argument.  Return error directly.
	* encrypt.c (status_handler_finish): Remove function.
	(_gpgme_encrypt_status_handler): Change return type to GpgmeError.
	Return error directly.
	(_gpgme_encrypt_sym_status_handler): Likewise.
	* encrypt-sign.c (encrypt_sign_status_handler): Likewise.
	* engine-gpgsm.c (close_notify_handler): Do not signal done event
	anymore.
	(status_handler): Change return type to GpgmeError.  Diddle things
	around a bit to return errors directly.
	(start): Send start event.
	* export.c: Do not include <stdio.h>, <string.h> and <assert.h>.
	(export_status_handler): Change return type to GpgmeError.  Don't
	check ctx->error.
	* genkey.c: Do not include <stdio.h> and <assert.h>.
	(genkey_status_handler): Change return type to GpgmeError.  Don't
	check ctx->error.  Return errors directly.
	* gpgme.c (_gpgme_release_result): Do not initialize ctx->error.
	(_gpgme_op_event_cb): Function removed.
	(_gpgme_op_event_cb_user): Likewise.
	* import.c: Do not include <stdio.h>, <string.h> and <assert.h>.
	(import_status_handler): Change return type to GpgmeError.  Don't
	check ctx->error.
	* keylist.c (keylist_colon_handler, keylist_status_handler, finish_key):
	Change return type to GpgmeError, return error directly.
	* Makefile (libgpgme_la_SOURCES): Add wait-global.c,
	wait-private.c and wait-user.c
	* ops.h (test_and_allocate_result): Return error instead setting
	ctx->error.
	(_gpgme_data_inbound_handler, _gpgme_data_outbound_handler,
	_gpgme_verify_status_handler, _gpgme_decrypt_status_handler,
	_gpgme_sign_status_handler, _gpgme_encrypt_staus_handler,
	_gpgme_passphrase_status_handler, _gpgme_progress_status_handler):
	Change return type to GpgmeError.
	(_gpgme_passphease_command_handler): Change return type to
	GpgmeError and add new argument RESULT.
	* op-support.c: Use new callback functions, and change private
	data to ctx everywhere.
	* passphrase.c (_gpgme_passphrase_status_handler): Change return
	type to GpgmeError, return error directly.
	(_gpgme_passphrase_command_handler): Change return type to
	GpgmeError, add result argument.  Return results accordingly.
	* progress.c (_gpgme_progress_status_handler): Change return type
	to GpgmeError, return errors directly.
	* rungpg.c (status_handler): Change return type to GpgmeError.
	Return error directly.
	(close_notify_handler): Don't send done event.
	(colon_line_handler): Change return type to GpgmeError, return
	errors directly.
	* rungpg.c (start): Send start event.
	* sign.c (_gpgme_sign_status_handler): Change return type to
	GpgmeError, return errors directly.
	* trustlist.c (trustlist_status_handler): Change return type to
	GpgmeError.  Return 0.
	(trustlist_colon_handler): Change return type GpgmeError.  Return
	errors directly.
	* verify.c (add_notation): Change return type to GpgmeError,
	return errors directly.
	(_gpgme_verify_status_handler): Likewise.
	* wait.h (struct fd_table): Remove lock member.
	(struct wait_item_s): Moved here from wait.c.
	(struct tag): New structure.
	(_gpgme_wait_event_cb): Remove prototype.
	(_gpgme_wait_private_event_cb, _gpgme_wait_global_event_cb,
	_gpgme_wait_user_add_io_cb, _gpgme_wait_user_remove_io_cb,
	_gpgme_wait_user_event_io_cb): New prototypes.
	* wait.c: Don't include <stdio.h>.
	(ftd_global, ctx_done_list, ctx_done_list_size,
	ctx_done_list_length, ctx_done_list_lock, idle_function): Remove
	global variable.
	(gpgme_register_idle, do_select, _gpgme_wait_event_cb): Remove
	function.
	(gpgme_wait): Move to file wait-global.c.
	(_gpgme_add_io_cb): Take ctx as private argument, initialize ctx
	member in wait item and tag.
	(_gpgme_remove_io_cb): Take ctx from tag.  Don't use FDT lock.
	(_gpgme_wait_one, _gpgme_wait_on_condition): Move to
	wait-private.c.
	(gpgme_fd_table_init): Don't initialize FDT->lock.
	(gpgme_fd_table_deinit): Don't destroy FDT->lock.
	(_gpgme_fd_table_put): Make static and rename to ...
	(fd_table_put): ... this function.  Don't use FDT->lock.
	(struct wait_item_s): Move to wait.h.
	* wait-global.c: New file.
	* wait-private.c: New file.
	* wait-user.c: New file.
2003-01-29 15:20:58 +00:00

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/* passphrase.c - passphrase functions
Copyright (C) 2000 Werner Koch (dd9jn)
Copyright (C) 2001, 2002 g10 Code GmbH
This file is part of GPGME.
GPGME is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GPGME is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GPGME; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "util.h"
#include "context.h"
#include "ops.h"
struct passphrase_result_s
{
int no_passphrase;
void *last_pw_handle;
char *userid_hint;
char *passphrase_info;
int bad_passphrase;
};
void
_gpgme_release_passphrase_result (PassphraseResult result)
{
if (!result)
return;
free (result->passphrase_info);
free (result->userid_hint);
free (result);
}
GpgmeError
_gpgme_passphrase_status_handler (GpgmeCtx ctx, GpgmeStatusCode code, char *args)
{
test_and_allocate_result (ctx, passphrase);
switch (code)
{
case GPGME_STATUS_USERID_HINT:
free (ctx->result.passphrase->userid_hint);
if (!(ctx->result.passphrase->userid_hint = strdup (args)))
return mk_error (Out_Of_Core);
break;
case GPGME_STATUS_BAD_PASSPHRASE:
ctx->result.passphrase->bad_passphrase++;
ctx->result.passphrase->no_passphrase = 0;
break;
case GPGME_STATUS_GOOD_PASSPHRASE:
ctx->result.passphrase->bad_passphrase = 0;
ctx->result.passphrase->no_passphrase = 0;
break;
case GPGME_STATUS_NEED_PASSPHRASE:
case GPGME_STATUS_NEED_PASSPHRASE_SYM:
free (ctx->result.passphrase->passphrase_info);
ctx->result.passphrase->passphrase_info = strdup (args);
if (!ctx->result.passphrase->passphrase_info)
return mk_error (Out_Of_Core);
break;
case GPGME_STATUS_MISSING_PASSPHRASE:
DEBUG0 ("missing passphrase - stop\n");;
ctx->result.passphrase->no_passphrase = 1;
break;
case GPGME_STATUS_EOF:
if (ctx->result.passphrase->no_passphrase
|| ctx->result.passphrase->bad_passphrase)
return mk_error (No_Passphrase);
break;
default:
/* Ignore all other codes. */
break;
}
return 0;
}
GpgmeError
_gpgme_passphrase_command_handler (void *opaque, GpgmeStatusCode code,
const char *key, const char **result)
{
GpgmeCtx ctx = opaque;
if (!ctx->result.passphrase)
{
ctx->result.passphrase = calloc (1, sizeof *ctx->result.passphrase);
if (!ctx->result.passphrase)
return mk_error (Out_Of_Core);
}
if (!code)
{
/* We have been called for cleanup. */
if (ctx->passphrase_cb)
{
/* Fixme: Take the key in account. */
ctx->passphrase_cb (ctx->passphrase_cb_value, NULL,
&ctx->result.passphrase->last_pw_handle);
}
*result = NULL;
return 0;
}
if (!key || !ctx->passphrase_cb)
{
*result = NULL;
return 0;
}
if (code == GPGME_STATUS_GET_HIDDEN && !strcmp (key, "passphrase.enter"))
{
const char *userid_hint = ctx->result.passphrase->userid_hint;
const char *passphrase_info = ctx->result.passphrase->passphrase_info;
int bad_passphrase = ctx->result.passphrase->bad_passphrase;
char *buf;
ctx->result.passphrase->bad_passphrase = 0;
if (!userid_hint)
userid_hint = "[User ID hint missing]";
if (!passphrase_info)
passphrase_info = "[passphrase info missing]";
buf = malloc (20 + strlen (userid_hint)
+ strlen (passphrase_info) + 3);
if (!buf)
return mk_error (Out_Of_Core);
sprintf (buf, "%s\n%s\n%s",
bad_passphrase ? "TRY_AGAIN":"ENTER",
userid_hint, passphrase_info);
*result = ctx->passphrase_cb (ctx->passphrase_cb_value, buf,
&ctx->result.passphrase->last_pw_handle);
free (buf);
return 0;
}
*result = NULL;
return 0;
}
GpgmeError
_gpgme_passphrase_start (GpgmeCtx ctx)
{
GpgmeError err = 0;
if (ctx->passphrase_cb)
err = _gpgme_engine_set_command_handler (ctx->engine,
_gpgme_passphrase_command_handler,
ctx, NULL);
return err;
}
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