1 files changed, 38 insertions, 0 deletions
diff --git a/src/include/base64.h b/src/include/base64.h
new file mode 100644
index 0000000..c83cfc9
--- /dev/null
+++ b/src/include/base64.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+ * Written by Simon Josefsson.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#ifndef _FR_BASE64_H
+#define _FR_BASE64_H
+
+RCSIDH(base64_h, "$Id$")
+
+#include <stddef.h>
+#include <stdint.h>
+
+/* This uses that the expression (n+(k-1))/k means the smallest
+   integer >= n/k, i.e., the ceiling of n/k.  */
+#define FR_BASE64_ENC_LENGTH(inlen) ((((inlen) + 2) / 3) * 4)
+#define FR_BASE64_DEC_LENGTH(inlen) ((3 * (inlen / 4)) + 2)
+
+bool fr_is_base64(char c);
+
+ssize_t fr_base64_encode(char *out, size_t outlen, uint8_t const *in, size_t inlen);
+
+ssize_t fr_base64_decode(uint8_t *out, size_t outlen, char const *in, size_t inlen);
+
+#endif /* _FR_BASE64_H */