agent: Move a typedef to common and provide parse_pinentry_mode.

* common/agent-opt.c: New.
* common/shareddefs.h: New.
* common/Makefile.am: Add new files.
* agent/agent.h: Include shareddefs.h.
(pinentry_mode_t): Factor out to shareddefs.h.
* agent/command.c (option_handler): Use parse_pinentry_mode.

1 files changed, 71 insertions, 0 deletions

diff --git a/common/agent-opt.c b/common/agent-opt.c
new file mode 100644
index 000000000..4317ba343
--- /dev/null
+++ b/common/agent-opt.c
@@ -0,0 +1,71 @@
+/* agent-opt.c - Helper for certain agent options
+ * Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of either
+ *
+ *   - the GNU Lesser General Public License as published by the Free
+ *     Software Foundation; either version 3 of the License, or (at
+ *     your option) any later version.
+ *
+ * or
+ *
+ *   - 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.
+ *
+ * or both in parallel, as here.
+ *
+ * This file 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "shareddefs.h"
+
+
+/* Parse VALUE and return an integer representing a pinentry_mode_t.
+   (-1) is returned for an invalid VALUE.  */
+int
+parse_pinentry_mode (const char *value)
+{
+  int result;
+
+  if (!strcmp (value, "ask") || !strcmp (value, "default"))
+    result = PINENTRY_MODE_ASK;
+  else if (!strcmp (value, "cancel"))
+    result = PINENTRY_MODE_CANCEL;
+  else if (!strcmp (value, "error"))
+    result = PINENTRY_MODE_ERROR;
+  else if (!strcmp (value, "loopback"))
+    result = PINENTRY_MODE_LOOPBACK;
+  else
+    result = -1;
+
+  return result;
+}
+
+/* Return the string representation for the pinentry MODE.  Returns
+   "?" for an invalid mode.  */
+const char *
+str_pinentry_mode (pinentry_mode_t mode)
+{
+  switch (mode)
+    {
+    case PINENTRY_MODE_ASK:      return "ask";
+    case PINENTRY_MODE_CANCEL:   return "cancel";
+    case PINENTRY_MODE_ERROR:    return "error";
+    case PINENTRY_MODE_LOOPBACK: return "loopback";
+    }
+ return "?";
+}