Separate base64 implementation

1 files changed, 45 insertions, 0 deletions

diff --git a/src/base64.h b/src/base64.h
new file mode 100644
index 00000000..cb89491c
--- /dev/null
+++ b/src/base64.h
@@ -0,0 +1,45 @@
+/*
+  Copyright 2011-2018 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef SERD_BASE64_H
+#define SERD_BASE64_H
+
+#include <stdbool.h>
+#include <stddef.h>
+
+/**
+   Return the number of bytes required to encode `size` bytes in base64.
+
+   @param size The number of input (binary) bytes to encode.
+   @param wrap_lines Wrap lines at 76 characters to conform to RFC 2045.
+   @return The length of the base64 encoding, excluding null terminator.
+*/
+size_t
+serd_base64_get_length(size_t size, bool wrap_lines);
+
+/**
+   Encode `size` bytes of `buf` into `str`, which must be large enough.
+
+   @param str Output string buffer.
+   @param buf Input binary data.
+   @param size Number of bytes to encode from `buf`.
+   @param wrap_lines Wrap lines at 76 characters to conform to RFC 2045.
+   @return True iff `str` contains newlines.
+*/
+bool
+serd_base64_encode(char* str, const void* buf, size_t size, bool wrap_lines);
+
+#endif  // SERD_BASE64_H