trunk/Src/wptCardEditCB.cpp

/* wptCardEditCB.cpp - Card callbacks
 *      Copyright (C) 2003, 2004, 2005 Timo Schulz
 *      Copyright (C) 2005 g10 Code GmbH
 *
 * This file is part of WinPT.
 *
 * WinPT 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.
 *
 * WinPT 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 this program; if not, gpg_write to the Free Software Foundation, 
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */
#include <windows.h>
#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include <stdlib.h>

#include "gpgme.h"
#include "wptCard.h"
#include "wptCardEdit.h"
#include "wptErrors.h"

#define save_write(val) ((val)? (val) : "")
static const char *stat_key = "";

/* Wrapper to emulate write(). */
static int
gpg_write (int fd, const void *buf, size_t buflen)
{
    HANDLE hd = (HANDLE)fd;
    DWORD n;

    MessageBox (NULL, (const char*)buf, stat_key, MB_OK);
    WriteFile (hd, buf, buflen, &n, NULL);
    WriteFile (hd, "\n", 1, &n, NULL);
    return n;
}


/* Common card handler. Handle general card status events. */
static gpgme_error_t
common_card_handler (GpgCardEdit *c, gpgme_status_code_t code, 
                     const char *key, int fd)
{
    const char *s;

    if (!strcmp (key,  "cardctrl.insert_card.okay")) {
        if (c->card_cb) {
            s = c->card_cb (CARD_CTL_INSERT, c->cb_value);
            gpg_write (fd, s, strlen (s));
            return 0;
        }
    }

    if (code == GPGME_STATUS_CARDCTRL && 
        (*key == CARD_CTL_NO_CARD || *key == CARD_CTL_NO_READER))
        c->setResult (GPG_CARDRES_NOCARD);

    /* This can happen for example if a wrong PIN were
       submitted. In such a case, we quit ASAP. */
    if (code == GPGME_STATUS_SC_OP_FAILURE) {
        if (key && !strcmp (key, "2"))
            c->setResult (GPG_CARDRES_BAD_PIN);
        else if (key && !strcmp (key, "1"))
            c->setResult (GPG_CARDRES_CANCEL);
        s = "quit\n";
        gpg_write (fd, s, strlen (s));
        return 0;
    }
    return 0;
}


/* handler for changing PINs of cards. */
static gpgme_error_t
change_pin_handler (void *opaque, gpgme_status_code_t code, 
                    const char *key, int fd)
{
    GpgCardEdit *c = (GpgCardEdit *)opaque;
    const char *s = "";
    int type;

    if (!c)
        return gpg_error (GPG_ERR_EOF);

    stat_key = key; /* XXX: debug code */

    common_card_handler (c, code, key, fd);

    type = c->getType ();
    if (!strcmp (key,  "cardedit.prompt")) {
        if (c->cnt == 0) {
            c->cnt++;
            s = "admin";
        }
        else if (c->cnt == 1) {
            c->cnt++;
            s = "passwd";
        }
        else {
            c->reset ();
            s = "quit";
        }
        gpg_write (fd, s, strlen (s));
        return 0;
    }
    if (!strcmp (key,  "cardutil.change_pin.menu")) {
        if (c->cnt == 2) {
            c->cnt++;
            switch (type) {
            case GPG_EDITCARD_CHUPIN: s = "1"; break;
            case GPG_EDITCARD_UNBPIN: s = "2"; break;
            case GPG_EDITCARD_CHAPIN: s = "3"; break;
            default:                  s = "Q";
            }
            gpg_write (fd, s, strlen (s));
            return 0;
        }
        else if (c->cnt > 0) {
            gpg_write (fd, "Q", 1);
            return 0;
        }
    }
    if (type == GPG_EDITCARD_CHUPIN) {
        if (!strcmp (key, "passphrase.pin.ask")) {
            s = c->pin;
            c->cnt++;
        }
        if (!strcmp (key, "passphrase.pin.new.ask")) {
            s = c->pin_new;
            c->cnt++;
        }
        if (!strcmp (key, "passphrase.pin.repeat") || 
            !strcmp (key, "passphrase.ask")) {
            s = c->pin_new;
            c->cnt++;
        }
        gpg_write (fd, s, strlen (s));
    }
    else if (type == GPG_EDITCARD_CHAPIN) {
        if (!strcmp (key, "passphrase.adminpin.ask")) {
            s = c->admin_pin;
            c->cnt++;
        }
        if (!strcmp (key, "passphrase.adminpin.new.ask")) {
            s = c->pin_new;
            c->cnt++;
        }
        if (!strcmp (key, "passphrase.pin.repeat") ||
            !strcmp (key, "passphrase.ask")) {
            s = c->pin_new;
            c->cnt++;
        }
        gpg_write (fd, s, strlen (s));
    }
    else if (type == GPG_EDITCARD_UNBPIN) {
        /* todo */
    }

    return 0;
}


/* edit card attributes handler. */
static gpgme_error_t
editcard_handler (void * opaque, gpgme_status_code_t code, 
                  const char *key, int fd)
{
    GpgCardEdit *c = (GpgCardEdit *)opaque;   
    const char *s = "";
    int type;

    if (!c)
        return gpg_error (GPG_ERR_EOF);

    stat_key = key;

    common_card_handler (c, code, key, fd);

    type = c->getType ();
    if (!strcmp (key, "cardedit.prompt")) {
        if (c->getResult ()) { /* in case of an error we quit. */
            c->cnt = 0;
            s = "quit";
            gpg_write (fd, s, strlen (s));
            return 0;
        }
        if (c->cnt == 0) { /* first switch in the admin mode */
            c->cnt++;
            s = "admin";
            gpg_write (fd, s, strlen (s));
            return 0;
        }
        if (c->cnt == 1) {/* then run the send command */
            c->cnt++;
            switch (type) {
            case GPG_EDITCARD_NAME:   s = "name"; break;
            case GPG_EDITCARD_KEYURL: s = "url"; break;
            case GPG_EDITCARD_LOGIN:  s = "login"; break;
            case GPG_EDITCARD_SEX:    s = "sex"; break;
            case GPG_EDITCARD_LANG:   s = "lang"; break;
            case GPG_EDITCARD_GENKEY: s = "generate"; break;
            default:                  s =  "quit";
            }
            gpg_write (fd, s, strlen (s));
            return 0;
        }
        else if (c->cnt >= 2) {/* done: send exit */
            c->reset ();
            s = "quit";
            gpg_write (fd, s, strlen (s));
            return 0;
        }
    }
    if (c->cnt > 0) {
        if (!strcmp (key, "passphrase.adminpin.ask")) {
            gpg_write (fd, c->admin_pin, strlen (c->admin_pin));
            return 0;
        }
        if (!strcmp (key, "passphrase.pin.ask")) {
            gpg_write (fd, c->pin, strlen (c->pin));
            return 0;
        }
    }
    switch (type) {
    case GPG_EDITCARD_NAME:
        if (!strcmp (key, "keygen.smartcard.surname")) {
            s = save_write (c->edit.surname);
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.smartcard.givenname")) {
            s = save_write (c->edit.givenname);
            gpg_write (fd, s, strlen (s));
        }
        break;

    case GPG_EDITCARD_KEYURL:
        if (!strcmp (key, "cardedit.change_url")) {
            s = save_write (c->edit.keyurl);
            gpg_write (fd, s, strlen (s));
        }
        break;

    case GPG_EDITCARD_LOGIN:
        if (!strcmp (key, "cardedit.change_login"))  {
            s = save_write (c->edit.login);
            gpg_write (fd, s, strlen (s));
        }
        break;

    case GPG_EDITCARD_SEX:
        if (!strcmp (key, "cardedit.change_sex")) {
            static char buf[2];
            if (c->edit.sex != 'M'
                && c->edit.sex != 'F'
                && c->edit.sex != ' ') {
                buf[0] = ' '; buf[1] = 0;
            }
            else {
                buf[0] = c->edit.sex; 
                buf[1] = 0;
            }
            gpg_write (fd, buf, strlen (buf));
        }
        break;

    case GPG_EDITCARD_LANG:
        if (!strcmp (key, "cardedit.change_lang")) {
            s = save_write (c->edit.lang);
            gpg_write (fd, s, strlen (s));
        }
        break;

    case GPG_EDITCARD_GENKEY:
        if (!strcmp (key, "passphrase.enter"))
            gpg_write (fd, c->keygen.pass, strlen (c->keygen.pass));
        if (!strcmp (key, "cardedit.genkeys.backup_enc")) {
            s = c->keygen.flags & GPG_CARDFLAG_BAKENC? "Y" : "N";
            gpg_write (fd, s, strlen (s));
        }
        if (!strcmp (key, "cardedit.genkeys.replace_keys")) {
            if (! (c->keygen.flags & GPG_CARDFLAG_REPLACE))
                c->cancel = 1;
            s = c->keygen.flags & GPG_CARDFLAG_REPLACE? "Y" : "N";
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.valid")) {
            s = save_write (c->keygen.expdate);
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.name")) {
            s = save_write (c->keygen.name);
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.email")) {
            s = save_write (c->keygen.email);
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.comment")) {
            s = save_write (c->keygen.comment);
            gpg_write (fd, s, strlen (s));
        }
        break;

    default:
        break;
    }
    
    return 0;
}


/* Check if a GPG status code occured which marks the
   current operation as failed.
   Return value: gpg error constant. */
static gpgme_error_t
map_result (GpgCardEdit *ce)
{
    if (!ce->getResult ())
        return gpg_error (GPG_ERR_NO_ERROR);
    if (ce->getResult () & GPG_CARDRES_NOCARD)
        return gpg_error (GPG_ERR_CARD_NOT_PRESENT);
    if (ce->getResult () & GPG_CARDRES_BAD_PIN)
        return gpg_error (GPG_ERR_BAD_PIN);
    return 0;
}


/* Wrapper around the gpgme card interface.
   @ctx: context to use.
   @ce:  card edit context.
   Return value: 0 on success. */
gpgme_error_t
gpg_card_edit (gpgme_ctx_t ctx, GpgCardEdit *ce)
{
    gpgme_data_t out;
    gpgme_error_t err;

    err = gpgme_data_new (&out);
    if (err)
        return err;

    if (ce->getType () > GPG_EDITCARD_CHPIN_ID)
        err = gpgme_op_card_edit (ctx, NULL, change_pin_handler, ce, out);
    else
        err = gpgme_op_card_edit (ctx, NULL, editcard_handler, ce, out);
    if (!err)
        err = map_result (ce);
    
    gpgme_data_release (out);
    return err;
}
1	twoaday	23	/* wptCardEditCB.cpp - Card callbacks
2			* Copyright (C) 2003, 2004, 2005 Timo Schulz
3	twoaday	24	* Copyright (C) 2005 g10 Code GmbH
4	twoaday	23	*
5			* This file is part of WinPT.
6			*
7			* WinPT is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* WinPT is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18	twoaday	24	* along with this program; if not, gpg_write to the Free Software Foundation,
19	twoaday	23	* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
20			*/
21	twoaday	24	#include <windows.h>
22	twoaday	23	#include <stdio.h>
23			#include <malloc.h>
24			#include <string.h>
25			#include <stdlib.h>
26
27	twoaday	25	#include "gpgme.h"
28	twoaday	26	#include "wptCard.h"
29	twoaday	23	#include "wptCardEdit.h"
30	twoaday	26	#include "wptErrors.h"
31	twoaday	23
32			#define save_write(val) ((val)? (val) : "")
33	twoaday	26	static const char *stat_key = "";
34	twoaday	23
35	twoaday	26	/* Wrapper to emulate write(). */
36	twoaday	24	static int
37			gpg_write (int fd, const void *buf, size_t buflen)
38			{
39			HANDLE hd = (HANDLE)fd;
40			DWORD n;
41	twoaday	23
42	twoaday	26	MessageBox (NULL, (const char*)buf, stat_key, MB_OK);
43	twoaday	24	WriteFile (hd, buf, buflen, &n, NULL);
44	twoaday	26	WriteFile (hd, "\n", 1, &n, NULL);
45	twoaday	24	return n;
46			}
47
48
49	twoaday	26	/* Common card handler. Handle general card status events. */
50	twoaday	23	static gpgme_error_t
51	twoaday	26	common_card_handler (GpgCardEdit *c, gpgme_status_code_t code,
52			const char *key, int fd)
53	twoaday	23	{
54	twoaday	26	const char *s;
55	twoaday	23
56	twoaday	27	if (!strcmp (key, "cardctrl.insert_card.okay")) {
57	twoaday	23	if (c->card_cb) {
58	twoaday	28	s = c->card_cb (CARD_CTL_INSERT, c->cb_value);
59	twoaday	24	gpg_write (fd, s, strlen (s));
60	twoaday	23	return 0;
61			}
62			}
63	twoaday	28
64			if (code == GPGME_STATUS_CARDCTRL &&
65			(key == CARD_CTL_NO_CARD \|\| key == CARD_CTL_NO_READER))
66	twoaday	26	c->setResult (GPG_CARDRES_NOCARD);
67
68			/* This can happen for example if a wrong PIN were
69			submitted. In such a case, we quit ASAP. */
70			if (code == GPGME_STATUS_SC_OP_FAILURE) {
71	twoaday	28	if (key && !strcmp (key, "2"))
72			c->setResult (GPG_CARDRES_BAD_PIN);
73			else if (key && !strcmp (key, "1"))
74			c->setResult (GPG_CARDRES_CANCEL);
75	twoaday	26	s = "quit\n";
76			gpg_write (fd, s, strlen (s));
77			return 0;
78			}
79			return 0;
80			}
81
82
83			/* handler for changing PINs of cards. */
84			static gpgme_error_t
85			change_pin_handler (void *opaque, gpgme_status_code_t code,
86			const char *key, int fd)
87			{
88			GpgCardEdit c = (GpgCardEdit )opaque;
89			const char *s = "";
90	twoaday	28	int type;
91	twoaday	26
92			if (!c)
93			return gpg_error (GPG_ERR_EOF);
94
95			stat_key = key; /* XXX: debug code */
96
97			common_card_handler (c, code, key, fd);
98	twoaday	28
99			type = c->getType ();
100	twoaday	23	if (!strcmp (key, "cardedit.prompt")) {
101	twoaday	26	if (c->cnt == 0) {
102			c->cnt++;
103	twoaday	23	s = "admin";
104	twoaday	26	}
105			else if (c->cnt == 1) {
106			c->cnt++;
107	twoaday	23	s = "passwd";
108	twoaday	26	}
109			else {
110			c->reset ();
111	twoaday	23	s = "quit";
112	twoaday	26	}
113	twoaday	24	gpg_write (fd, s, strlen (s));
114	twoaday	23	return 0;
115			}
116			if (!strcmp (key, "cardutil.change_pin.menu")) {
117	twoaday	26	if (c->cnt == 2) {
118			c->cnt++;
119	twoaday	28	switch (type) {
120	twoaday	26	case GPG_EDITCARD_CHUPIN: s = "1"; break;
121			case GPG_EDITCARD_UNBPIN: s = "2"; break;
122			case GPG_EDITCARD_CHAPIN: s = "3"; break;
123			default: s = "Q";
124	twoaday	23	}
125	twoaday	24	gpg_write (fd, s, strlen (s));
126	twoaday	23	return 0;
127			}
128			else if (c->cnt > 0) {
129	twoaday	24	gpg_write (fd, "Q", 1);
130	twoaday	23	return 0;
131			}
132			}
133	twoaday	28	if (type == GPG_EDITCARD_CHUPIN) {
134	twoaday	23	if (!strcmp (key, "passphrase.pin.ask")) {
135			s = c->pin;
136			c->cnt++;
137			}
138			if (!strcmp (key, "passphrase.pin.new.ask")) {
139			s = c->pin_new;
140			c->cnt++;
141			}
142	twoaday	26	if (!strcmp (key, "passphrase.pin.repeat") \|\|
143			!strcmp (key, "passphrase.ask")) {
144	twoaday	23	s = c->pin_new;
145			c->cnt++;
146			}
147	twoaday	24	gpg_write (fd, s, strlen (s));
148	twoaday	23	}
149	twoaday	28	else if (type == GPG_EDITCARD_CHAPIN) {
150	twoaday	23	if (!strcmp (key, "passphrase.adminpin.ask")) {
151	twoaday	26	s = c->admin_pin;
152	twoaday	23	c->cnt++;
153			}
154			if (!strcmp (key, "passphrase.adminpin.new.ask")) {
155			s = c->pin_new;
156			c->cnt++;
157			}
158	twoaday	26	if (!strcmp (key, "passphrase.pin.repeat") \|\|
159			!strcmp (key, "passphrase.ask")) {
160	twoaday	23	s = c->pin_new;
161			c->cnt++;
162			}
163	twoaday	24	gpg_write (fd, s, strlen (s));
164	twoaday	23	}
165	twoaday	28	else if (type == GPG_EDITCARD_UNBPIN) {
166	twoaday	23	/* todo */
167			}
168
169			return 0;
170			}
171
172
173	twoaday	26	/* edit card attributes handler. */
174	twoaday	23	static gpgme_error_t
175			editcard_handler (void * opaque, gpgme_status_code_t code,
176			const char *key, int fd)
177			{
178			GpgCardEdit c = (GpgCardEdit )opaque;
179			const char *s = "";
180	twoaday	28	int type;
181	twoaday	23
182			if (!c)
183			return gpg_error (GPG_ERR_EOF);
184	twoaday	26
185			stat_key = key;
186
187			common_card_handler (c, code, key, fd);
188
189	twoaday	28	type = c->getType ();
190	twoaday	26	if (!strcmp (key, "cardedit.prompt")) {
191			if (c->getResult ()) { /* in case of an error we quit. */
192			c->cnt = 0;
193			s = "quit";
194	twoaday	24	gpg_write (fd, s, strlen (s));
195	twoaday	23	return 0;
196			}
197	twoaday	26	if (c->cnt == 0) { /* first switch in the admin mode */
198			c->cnt++;
199	twoaday	23	s = "admin";
200	twoaday	24	gpg_write (fd, s, strlen (s));
201	twoaday	23	return 0;
202			}
203			if (c->cnt == 1) {/* then run the send command */
204			c->cnt++;
205	twoaday	28	switch (type) {
206	twoaday	26	case GPG_EDITCARD_NAME: s = "name"; break;
207			case GPG_EDITCARD_KEYURL: s = "url"; break;
208			case GPG_EDITCARD_LOGIN: s = "login"; break;
209			case GPG_EDITCARD_SEX: s = "sex"; break;
210			case GPG_EDITCARD_LANG: s = "lang"; break;
211			case GPG_EDITCARD_GENKEY: s = "generate"; break;
212	twoaday	23	default: s = "quit";
213			}
214	twoaday	24	gpg_write (fd, s, strlen (s));
215	twoaday	23	return 0;
216			}
217			else if (c->cnt >= 2) {/* done: send exit */
218	twoaday	26	c->reset ();
219	twoaday	23	s = "quit";
220	twoaday	24	gpg_write (fd, s, strlen (s));
221	twoaday	23	return 0;
222			}
223			}
224			if (c->cnt > 0) {
225			if (!strcmp (key, "passphrase.adminpin.ask")) {
226	twoaday	24	gpg_write (fd, c->admin_pin, strlen (c->admin_pin));
227	twoaday	23	return 0;
228			}
229			if (!strcmp (key, "passphrase.pin.ask")) {
230	twoaday	24	gpg_write (fd, c->pin, strlen (c->pin));
231	twoaday	23	return 0;
232			}
233			}
234	twoaday	28	switch (type) {
235	twoaday	23	case GPG_EDITCARD_NAME:
236			if (!strcmp (key, "keygen.smartcard.surname")) {
237			s = save_write (c->edit.surname);
238	twoaday	24	gpg_write (fd, s, strlen (s));
239	twoaday	23	}
240			else if (!strcmp (key, "keygen.smartcard.givenname")) {
241			s = save_write (c->edit.givenname);
242	twoaday	24	gpg_write (fd, s, strlen (s));
243	twoaday	23	}
244			break;
245
246			case GPG_EDITCARD_KEYURL:
247			if (!strcmp (key, "cardedit.change_url")) {
248			s = save_write (c->edit.keyurl);
249	twoaday	24	gpg_write (fd, s, strlen (s));
250	twoaday	23	}
251			break;
252
253			case GPG_EDITCARD_LOGIN:
254			if (!strcmp (key, "cardedit.change_login")) {
255			s = save_write (c->edit.login);
256	twoaday	24	gpg_write (fd, s, strlen (s));
257	twoaday	23	}
258			break;
259
260			case GPG_EDITCARD_SEX:
261			if (!strcmp (key, "cardedit.change_sex")) {
262			static char buf[2];
263			if (c->edit.sex != 'M'
264			&& c->edit.sex != 'F'
265			&& c->edit.sex != ' ') {
266			buf[0] = ' '; buf[1] = 0;
267			}
268			else {
269	twoaday	26	buf[0] = c->edit.sex;
270			buf[1] = 0;
271	twoaday	23	}
272	twoaday	24	gpg_write (fd, buf, strlen (buf));
273	twoaday	23	}
274			break;
275
276			case GPG_EDITCARD_LANG:
277			if (!strcmp (key, "cardedit.change_lang")) {
278			s = save_write (c->edit.lang);
279	twoaday	24	gpg_write (fd, s, strlen (s));
280	twoaday	23	}
281			break;
282
283			case GPG_EDITCARD_GENKEY:
284			if (!strcmp (key, "passphrase.enter"))
285	twoaday	24	gpg_write (fd, c->keygen.pass, strlen (c->keygen.pass));
286	twoaday	23	if (!strcmp (key, "cardedit.genkeys.backup_enc")) {
287			s = c->keygen.flags & GPG_CARDFLAG_BAKENC? "Y" : "N";
288	twoaday	24	gpg_write (fd, s, strlen (s));
289	twoaday	23	}
290			if (!strcmp (key, "cardedit.genkeys.replace_keys")) {
291			if (! (c->keygen.flags & GPG_CARDFLAG_REPLACE))
292			c->cancel = 1;
293			s = c->keygen.flags & GPG_CARDFLAG_REPLACE? "Y" : "N";
294	twoaday	24	gpg_write (fd, s, strlen (s));
295	twoaday	23	}
296			else if (!strcmp (key, "keygen.valid")) {
297			s = save_write (c->keygen.expdate);
298	twoaday	24	gpg_write (fd, s, strlen (s));
299	twoaday	23	}
300			else if (!strcmp (key, "keygen.name")) {
301			s = save_write (c->keygen.name);
302	twoaday	24	gpg_write (fd, s, strlen (s));
303	twoaday	23	}
304			else if (!strcmp (key, "keygen.email")) {
305			s = save_write (c->keygen.email);
306	twoaday	24	gpg_write (fd, s, strlen (s));
307	twoaday	23	}
308			else if (!strcmp (key, "keygen.comment")) {
309			s = save_write (c->keygen.comment);
310	twoaday	24	gpg_write (fd, s, strlen (s));
311	twoaday	23	}
312			break;
313
314			default:
315			break;
316			}
317
318			return 0;
319			}
320
321
322	twoaday	26	/* Check if a GPG status code occured which marks the
323			current operation as failed.
324			Return value: gpg error constant. */
325			static gpgme_error_t
326			map_result (GpgCardEdit *ce)
327			{
328			if (!ce->getResult ())
329			return gpg_error (GPG_ERR_NO_ERROR);
330			if (ce->getResult () & GPG_CARDRES_NOCARD)
331	twoaday	27	return gpg_error (GPG_ERR_CARD_NOT_PRESENT);
332	twoaday	26	if (ce->getResult () & GPG_CARDRES_BAD_PIN)
333			return gpg_error (GPG_ERR_BAD_PIN);
334			return 0;
335			}
336
337
338			/* Wrapper around the gpgme card interface.
339			@ctx: context to use.
340			@ce: card edit context.
341			Return value: 0 on success. */
342	twoaday	23	gpgme_error_t
343			gpg_card_edit (gpgme_ctx_t ctx, GpgCardEdit *ce)
344			{
345	twoaday	26	gpgme_data_t out;
346	twoaday	23	gpgme_error_t err;
347
348	twoaday	26	err = gpgme_data_new (&out);
349			if (err)
350			return err;
351
352	twoaday	28	if (ce->getType () > GPG_EDITCARD_CHPIN_ID)
353	twoaday	27	err = gpgme_op_card_edit (ctx, NULL, change_pin_handler, ce, out);
354	twoaday	23	else
355	twoaday	27	err = gpgme_op_card_edit (ctx, NULL, editcard_handler, ce, out);
356	twoaday	26	if (!err)
357			err = map_result (ce);
358
359			gpgme_data_release (out);
360	twoaday	23	return err;
361			}