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-rw-r--r--src/passphrase.c154
1 files changed, 154 insertions, 0 deletions
diff --git a/src/passphrase.c b/src/passphrase.c
new file mode 100644
index 0000000..c36b6ae
--- /dev/null
+++ b/src/passphrase.c
@@ -0,0 +1,154 @@
+/* passphrase.c - Passphrase callback.
+ Copyright (C) 2000 Werner Koch (dd9jn)
+ Copyright (C) 2001, 2002, 2003, 2004, 2005 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, 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 <errno.h>
+
+#include "gpgme.h"
+#include "context.h"
+#include "ops.h"
+#include "util.h"
+
+
+typedef struct
+{
+ int no_passphrase;
+ char *uid_hint;
+ char *passphrase_info;
+ int bad_passphrase;
+} *op_data_t;
+
+
+static void
+release_op_data (void *hook)
+{
+ op_data_t opd = (op_data_t) hook;
+
+ if (opd->passphrase_info)
+ free (opd->passphrase_info);
+ if (opd->uid_hint)
+ free (opd->uid_hint);
+}
+
+
+gpgme_error_t
+_gpgme_passphrase_status_handler (void *priv, gpgme_status_code_t code,
+ char *args)
+{
+ gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
+ gpgme_error_t err;
+ void *hook;
+ op_data_t opd;
+
+ err = _gpgme_op_data_lookup (ctx, OPDATA_PASSPHRASE, &hook,
+ sizeof (*opd), release_op_data);
+ opd = hook;
+ if (err)
+ return err;
+
+ switch (code)
+ {
+ case GPGME_STATUS_USERID_HINT:
+ if (opd->uid_hint)
+ free (opd->uid_hint);
+ if (!(opd->uid_hint = strdup (args)))
+ return gpg_error_from_errno (errno);
+ break;
+
+ case GPGME_STATUS_BAD_PASSPHRASE:
+ opd->bad_passphrase++;
+ opd->no_passphrase = 0;
+ break;
+
+ case GPGME_STATUS_GOOD_PASSPHRASE:
+ opd->bad_passphrase = 0;
+ opd->no_passphrase = 0;
+ break;
+
+ case GPGME_STATUS_NEED_PASSPHRASE:
+ case GPGME_STATUS_NEED_PASSPHRASE_SYM:
+ case GPGME_STATUS_NEED_PASSPHRASE_PIN:
+ if (opd->passphrase_info)
+ free (opd->passphrase_info);
+ opd->passphrase_info = strdup (args);
+ if (!opd->passphrase_info)
+ return gpg_error_from_errno (errno);
+ break;
+
+ case GPGME_STATUS_MISSING_PASSPHRASE:
+ opd->no_passphrase = 1;
+ break;
+
+ case GPGME_STATUS_EOF:
+ if (opd->no_passphrase || opd->bad_passphrase)
+ return gpg_error (GPG_ERR_BAD_PASSPHRASE);
+ break;
+
+ default:
+ /* Ignore all other codes. */
+ break;
+ }
+ return 0;
+}
+
+
+gpgme_error_t
+_gpgme_passphrase_command_handler (void *priv, gpgme_status_code_t code,
+ const char *key, int fd, int *processed)
+{
+ gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
+ gpgme_error_t err;
+ void *hook;
+ op_data_t opd;
+
+ assert (ctx->passphrase_cb);
+
+ err = _gpgme_op_data_lookup (ctx, OPDATA_PASSPHRASE, &hook,
+ sizeof (*opd), release_op_data);
+ opd = hook;
+ if (err)
+ return err;
+
+ if (code == GPGME_STATUS_GET_HIDDEN
+ && (!strcmp (key, "passphrase.enter")
+ || !strcmp (key, "passphrase.pin.ask")))
+ {
+ if (processed)
+ *processed = 1;
+
+ err = ctx->passphrase_cb (ctx->passphrase_cb_value,
+ opd->uid_hint, opd->passphrase_info,
+ opd->bad_passphrase, fd);
+
+ /* Reset bad passphrase flag, in case it is correct now. */
+ opd->bad_passphrase = 0;
+
+ return err;
+ }
+
+ return 0;
+}