common: Add separate header for zb32.c.

* common/util.h (zb32_encode): Move prototype to ...
* common/zb32.h: new.  Include this for all callers of zb32_encode.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/common/zb32.h b/common/zb32.h
new file mode 100644
index 000000000..1fb41ecae
--- /dev/null
+++ b/common/zb32.h
@@ -0,0 +1,38 @@
+/* zb32.h - z-base-32 functions
+ * Copyright (C) 2014  Werner Koch
+ *
+ * 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/>.
+ */
+
+#ifndef GNUPG_COMMON_ZB32_H
+#define GNUPG_COMMON_ZB32_H
+
+/* Encode DATA which has a length of DATABITS (bits!) using the
+   zbase32 encoder and return a malloced string.  Returns NULL on
+   error and sets ERRNO.  */
+char *zb32_encode (const void *data, unsigned int databits);
+
+#endif /*GNUPG_COMMON_ZB32_H*/