Line data Source code
1 : /* delete.c - Delete a key.
2 : Copyright (C) 2001, 2002, 2003, 2004 g10 Code GmbH
3 :
4 : This file is part of GPGME.
5 :
6 : GPGME is free software; you can redistribute it and/or modify it
7 : under the terms of the GNU Lesser General Public License as
8 : published by the Free Software Foundation; either version 2.1 of
9 : the License, or (at your option) any later version.
10 :
11 : GPGME is distributed in the hope that it will be useful, but
12 : WITHOUT ANY WARRANTY; without even the implied warranty of
13 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 : Lesser General Public License for more details.
15 :
16 : You should have received a copy of the GNU Lesser General Public
17 : License along with this program; if not, write to the Free Software
18 : Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
19 : 02111-1307, USA. */
20 :
21 : #if HAVE_CONFIG_H
22 : #include <config.h>
23 : #endif
24 : #include <stdlib.h>
25 : #include <errno.h>
26 :
27 : #include "debug.h"
28 : #include "gpgme.h"
29 : #include "context.h"
30 : #include "ops.h"
31 :
32 :
33 : static gpgme_error_t
34 0 : delete_status_handler (void *priv, gpgme_status_code_t code, char *args)
35 : {
36 0 : if (code == GPGME_STATUS_DELETE_PROBLEM)
37 : {
38 : enum delete_problem
39 : {
40 : DELETE_No_Problem = 0,
41 : DELETE_No_Such_Key = 1,
42 : DELETE_Must_Delete_Secret_Key = 2,
43 : DELETE_Ambiguous_Specification = 3
44 : };
45 : long problem;
46 : char *tail;
47 :
48 0 : gpg_err_set_errno (0);
49 0 : problem = strtol (args, &tail, 0);
50 0 : if (errno || (*tail && *tail != ' '))
51 0 : return trace_gpg_error (GPG_ERR_INV_ENGINE);
52 :
53 0 : switch (problem)
54 : {
55 : case DELETE_No_Problem:
56 0 : break;
57 :
58 : case DELETE_No_Such_Key:
59 0 : return gpg_error (GPG_ERR_NO_PUBKEY);
60 :
61 : case DELETE_Must_Delete_Secret_Key:
62 0 : return gpg_error (GPG_ERR_CONFLICT);
63 :
64 : case DELETE_Ambiguous_Specification:
65 0 : return gpg_error (GPG_ERR_AMBIGUOUS_NAME);
66 :
67 : }
68 :
69 0 : return gpg_error (GPG_ERR_GENERAL);
70 : }
71 0 : else if (code == GPGME_STATUS_ERROR)
72 : {
73 : /* Some error stati are informational, so we don't return an
74 : error code if we are not ready to process this status. */
75 : gpgme_error_t err;
76 0 : char *where = strchr (args, ' ');
77 : char *which;
78 :
79 0 : if (where)
80 : {
81 0 : *where = '\0';
82 0 : which = where + 1;
83 :
84 0 : where = strchr (which, ' ');
85 0 : if (where)
86 0 : *where = '\0';
87 :
88 0 : where = args;
89 : }
90 : else
91 0 : return trace_gpg_error (GPG_ERR_INV_ENGINE);
92 :
93 0 : err = atoi (which);
94 :
95 0 : if (!strcmp (where, "delete_key.secret")
96 0 : && (gpg_err_code (err) == GPG_ERR_CANCELED
97 0 : || gpg_err_code (err) == GPG_ERR_FULLY_CANCELED))
98 : {
99 : /* This indicates a user cancellation on the confirmation dialog. */
100 0 : return gpg_error (gpg_err_code (err));
101 : }
102 : }
103 0 : return 0;
104 : }
105 :
106 :
107 : static gpgme_error_t
108 0 : delete_start (gpgme_ctx_t ctx, int synchronous, const gpgme_key_t key,
109 : int allow_secret)
110 : {
111 : gpgme_error_t err;
112 :
113 0 : err = _gpgme_op_reset (ctx, synchronous);
114 0 : if (err)
115 0 : return err;
116 :
117 0 : _gpgme_engine_set_status_handler (ctx->engine, delete_status_handler, ctx);
118 :
119 0 : return _gpgme_engine_op_delete (ctx->engine, key, allow_secret);
120 : }
121 :
122 :
123 : /* Delete KEY from the keyring. If ALLOW_SECRET is non-zero, secret
124 : keys are also deleted. */
125 : gpgme_error_t
126 0 : gpgme_op_delete_start (gpgme_ctx_t ctx, const gpgme_key_t key,
127 : int allow_secret)
128 : {
129 : gpgme_error_t err;
130 :
131 0 : TRACE_BEG3 (DEBUG_CTX, "gpgme_op_delete", ctx,
132 : "key=%p (%s), allow_secret=%i", key,
133 : (key->subkeys && key->subkeys->fpr) ?
134 : key->subkeys->fpr : "invalid", allow_secret);
135 :
136 0 : if (!ctx)
137 0 : return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
138 :
139 0 : err = delete_start (ctx, 0, key, allow_secret);
140 0 : return TRACE_ERR (err);
141 : }
142 :
143 :
144 : /* Delete KEY from the keyring. If ALLOW_SECRET is non-zero, secret
145 : keys are also deleted. */
146 : gpgme_error_t
147 0 : gpgme_op_delete (gpgme_ctx_t ctx, const gpgme_key_t key, int allow_secret)
148 : {
149 : gpgme_error_t err;
150 :
151 0 : TRACE_BEG3 (DEBUG_CTX, "gpgme_op_delete", ctx,
152 : "key=%p (%s), allow_secret=%i", key,
153 : (key->subkeys && key->subkeys->fpr) ?
154 : key->subkeys->fpr : "invalid", allow_secret);
155 :
156 0 : if (!ctx)
157 0 : return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
158 :
159 0 : err = delete_start (ctx, 1, key, allow_secret);
160 0 : if (!err)
161 0 : err = _gpgme_wait_one (ctx);
162 0 : return err;
163 : }
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