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-rw-r--r--src/op-support.c298
1 files changed, 298 insertions, 0 deletions
diff --git a/src/op-support.c b/src/op-support.c
new file mode 100644
index 00000000..fefccc67
--- /dev/null
+++ b/src/op-support.c
@@ -0,0 +1,298 @@
+/* op-support.c - Supporting functions.
+ Copyright (C) 2002, 2003, 2004, 2007 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 Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <locale.h>
+
+#include "gpgme.h"
+#include "context.h"
+#include "ops.h"
+
+
+gpgme_error_t
+_gpgme_op_data_lookup (gpgme_ctx_t ctx, ctx_op_data_id_t type, void **hook,
+ int size, void (*cleanup) (void *))
+{
+ struct ctx_op_data *data = ctx->op_data;
+ while (data && data->type != type)
+ data = data->next;
+ if (!data)
+ {
+ if (size < 0)
+ {
+ *hook = NULL;
+ return 0;
+ }
+
+ data = calloc (1, sizeof (struct ctx_op_data) + size);
+ if (!data)
+ return gpg_error_from_errno (errno);
+ data->next = ctx->op_data;
+ data->type = type;
+ data->cleanup = cleanup;
+ data->hook = (void *) (((char *) data) + sizeof (struct ctx_op_data));
+ ctx->op_data = data;
+ }
+ *hook = data->hook;
+ return 0;
+}
+
+
+/* type is: 0: asynchronous operation (use global or user event loop).
+ 1: synchronous operation (always use private event loop).
+ 2: asynchronous private operation (use private or user
+ event loop).
+ 256: Modification flag to suppress the engine reset.
+*/
+gpgme_error_t
+_gpgme_op_reset (gpgme_ctx_t ctx, int type)
+{
+ gpgme_error_t err = 0;
+ struct gpgme_io_cbs io_cbs;
+ int no_reset = (type & 256);
+ int reuse_engine = 0;
+
+ type &= 255;
+
+ _gpgme_release_result (ctx);
+ LOCK (ctx->lock);
+ ctx->canceled = 0;
+ UNLOCK (ctx->lock);
+
+ if (ctx->engine && no_reset)
+ reuse_engine = 1;
+ else if (ctx->engine)
+ {
+ /* Attempt to reset an existing engine. */
+
+ err = _gpgme_engine_reset (ctx->engine);
+ if (gpg_err_code (err) == GPG_ERR_NOT_IMPLEMENTED)
+ {
+ _gpgme_engine_release (ctx->engine);
+ ctx->engine = NULL;
+ }
+ }
+
+ if (!ctx->engine)
+ {
+ gpgme_engine_info_t info;
+ info = ctx->engine_info;
+ while (info && info->protocol != ctx->protocol)
+ info = info->next;
+
+ if (!info)
+ return gpg_error (GPG_ERR_UNSUPPORTED_PROTOCOL);
+
+ /* Create an engine object. */
+ err = _gpgme_engine_new (info, &ctx->engine);
+ if (err)
+ return err;
+ }
+
+ if (!reuse_engine)
+ {
+ err = _gpgme_engine_set_locale (ctx->engine, LC_CTYPE, ctx->lc_ctype);
+#ifdef LC_MESSAGES
+ if (!err)
+ err = _gpgme_engine_set_locale (ctx->engine,
+ LC_MESSAGES, ctx->lc_messages);
+#endif
+ if (gpg_err_code (err) == GPG_ERR_NOT_IMPLEMENTED)
+ err = 0;
+ if (err)
+ {
+ _gpgme_engine_release (ctx->engine);
+ ctx->engine = NULL;
+ return err;
+ }
+ }
+
+ if (type == 1 || (type == 2 && !ctx->io_cbs.add))
+ {
+ /* Use private event loop. */
+ io_cbs.add = _gpgme_add_io_cb;
+ io_cbs.add_priv = ctx;
+ io_cbs.remove = _gpgme_remove_io_cb;
+ io_cbs.event = _gpgme_wait_private_event_cb;
+ io_cbs.event_priv = ctx;
+ }
+ else if (! ctx->io_cbs.add)
+ {
+ /* Use global event loop. */
+ io_cbs.add = _gpgme_add_io_cb;
+ io_cbs.add_priv = ctx;
+ io_cbs.remove = _gpgme_remove_io_cb;
+ io_cbs.event = _gpgme_wait_global_event_cb;
+ io_cbs.event_priv = ctx;
+ }
+ else
+ {
+ /* Use user event loop. */
+ io_cbs.add = _gpgme_wait_user_add_io_cb;
+ io_cbs.add_priv = ctx;
+ io_cbs.remove = _gpgme_wait_user_remove_io_cb;
+ io_cbs.event = _gpgme_wait_user_event_cb;
+ io_cbs.event_priv = ctx;
+ }
+ _gpgme_engine_set_io_cbs (ctx->engine, &io_cbs);
+ return err;
+}
+
+
+/* Parse the INV_RECP status line in ARGS and return the result in
+ KEY. */
+gpgme_error_t
+_gpgme_parse_inv_recp (char *args, gpgme_invalid_key_t *key)
+{
+ gpgme_invalid_key_t inv_key;
+ char *tail;
+ long int reason;
+
+ inv_key = malloc (sizeof (*inv_key));
+ if (!inv_key)
+ return gpg_error_from_errno (errno);
+ inv_key->next = NULL;
+ errno = 0;
+ reason = strtol (args, &tail, 0);
+ if (errno || args == tail || *tail != ' ')
+ {
+ /* The crypto backend does not behave. */
+ free (inv_key);
+ return gpg_error (GPG_ERR_INV_ENGINE);
+ }
+
+ switch (reason)
+ {
+ default:
+ case 0:
+ inv_key->reason = gpg_error (GPG_ERR_GENERAL);
+ break;
+
+ case 1:
+ inv_key->reason = gpg_error (GPG_ERR_NO_PUBKEY);
+ break;
+
+ case 2:
+ inv_key->reason = gpg_error (GPG_ERR_AMBIGUOUS_NAME);
+ break;
+
+ case 3:
+ inv_key->reason = gpg_error (GPG_ERR_WRONG_KEY_USAGE);
+ break;
+
+ case 4:
+ inv_key->reason = gpg_error (GPG_ERR_CERT_REVOKED);
+ break;
+
+ case 5:
+ inv_key->reason = gpg_error (GPG_ERR_CERT_EXPIRED);
+ break;
+
+ case 6:
+ inv_key->reason = gpg_error (GPG_ERR_NO_CRL_KNOWN);
+ break;
+
+ case 7:
+ inv_key->reason = gpg_error (GPG_ERR_CRL_TOO_OLD);
+ break;
+
+ case 8:
+ inv_key->reason = gpg_error (GPG_ERR_NO_POLICY_MATCH);
+ break;
+
+ case 9:
+ inv_key->reason = gpg_error (GPG_ERR_NO_SECKEY);
+ break;
+
+ case 10:
+ inv_key->reason = gpg_error (GPG_ERR_PUBKEY_NOT_TRUSTED);
+ break;
+
+ case 11:
+ inv_key->reason = gpg_error (GPG_ERR_MISSING_CERT);
+ break;
+ }
+
+ while (*tail == ' ')
+ tail++;
+ if (*tail)
+ {
+ inv_key->fpr = strdup (tail);
+ if (!inv_key->fpr)
+ {
+ int saved_errno = errno;
+ free (inv_key);
+ return gpg_error_from_errno (saved_errno);
+ }
+ }
+ else
+ inv_key->fpr = NULL;
+
+ *key = inv_key;
+ return 0;
+}
+
+
+/* Parse the PLAINTEXT status line in ARGS and return the result in
+ FILENAMEP. */
+gpgme_error_t
+_gpgme_parse_plaintext (char *args, char **filenamep)
+{
+ char *tail;
+
+ while (*args == ' ')
+ args++;
+ if (*args == '\0')
+ return 0;
+
+ /* First argument is file type. */
+ while (*args != ' ' && *args != '\0')
+ args++;
+ while (*args == ' ')
+ args++;
+ if (*args == '\0')
+ return 0;
+
+ /* Second argument is the timestamp. */
+ while (*args != ' ' && *args != '\0')
+ args++;
+ while (*args == ' ')
+ args++;
+ if (*args == '\0')
+ return 0;
+
+ tail = args;
+ while (*tail != ' ' && *tail != '\0')
+ tail++;
+ *tail = '\0';
+ if (filenamep && *args != '\0')
+ {
+ char *filename = strdup (args);
+ if (!filename)
+ return gpg_error_from_errno (errno);
+
+ *filenamep = filename;
+ }
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 06:57:28 +0000