1 files changed, 97 insertions, 0 deletions
diff --git a/common/gpgrlhelp.c b/common/gpgrlhelp.c
new file mode 100644
index 0000000..680d999
--- /dev/null
+++ b/common/gpgrlhelp.c
@@ -0,0 +1,97 @@
+/* gpgrlhelp.c - A readline wrapper.
+ *	Copyright (C) 2006 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 <https://www.gnu.org/licenses/>.
+ */
+
+/* This module may by used by applications to initializes readline
+   support.  It is required so that we can have hooks in other parts
+   of libcommon without actually requiring to link against
+   libreadline.  It works along with ttyio.c which is a proper part of
+   libcommon. */
+
+#include <config.h>
+#include <stdlib.h>
+#include <stddef.h>
+
+#ifdef HAVE_LIBREADLINE
+#define GNUPG_LIBREADLINE_H_INCLUDED
+#include <stdio.h>
+#include <readline/readline.h>
+#include <readline/history.h>
+#endif
+
+#include "util.h"
+#include "common-defs.h"
+
+
+#ifdef HAVE_LIBREADLINE
+static void
+set_completer (rl_completion_func_t *completer)
+{
+  rl_attempted_completion_function = completer;
+  rl_inhibit_completion = 0;
+}
+
+static void
+inhibit_completion (int value)
+{
+  rl_inhibit_completion = value;
+}
+
+static void
+cleanup_after_signal (void)
+{
+  rl_free_line_state ();
+  rl_cleanup_after_signal ();
+}
+
+static void
+init_stream (FILE *fp)
+{
+  rl_catch_signals = 0;
+  rl_instream = rl_outstream = fp;
+  rl_inhibit_completion = 1;
+}
+
+#endif /*HAVE_LIBREADLINE*/
+
+
+/* Initialize our readline code.  This should be called as early as
+   possible as it is actually a constructur.  */
+void
+gnupg_rl_initialize (void)
+{
+#ifdef HAVE_LIBREADLINE
+  tty_private_set_rl_hooks (init_stream,
+                            set_completer,
+                            inhibit_completion,
+                            cleanup_after_signal,
+                            readline,
+                            add_history);
+  rl_readline_name = GNUPG_NAME;
+#endif
+}