base: properly separate conv_base64 out of conv

src/base/Makefile.am

@@ -25,7 +25,7 @@ libsidbase_la_SOURCES = buf-type-linear.c \
 			buf-type-vector.c \
 			buf.c \
 			comms.c \
-			conv.c \
+			conv-base64.c \
 			util.c
 
 basedir = $(pkgincludedir)/base
@@ -34,6 +34,7 @@ base_HEADERS = $(top_srcdir)/src/include/base/buf-common.h \
 	       $(top_srcdir)/src/include/base/buf-type.h \
 	       $(top_srcdir)/src/include/base/buf.h \
 	       $(top_srcdir)/src/include/base/comms.h \
+	       $(top_srcdir)/src/include/base/conv-base64.h \
 	       $(top_srcdir)/src/include/base/conv.h \
 	       $(top_srcdir)/src/include/base/util.h
 

src/include/base/conv-base64.h

@@ -0,0 +1,19 @@
+/*
+ * Base64 encoding/decoding (RFC1341)
+ * Copyright (c) 2005, Jouni Malinen <[email protected]>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See BSD_LICENSE for more details.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SID_CONV_BASE64_H
+#define SID_CONV_BASE64_H
+
+#include <stddef.h>
+
+size_t         sid_conv_base64_encoded_len(size_t in_len);
+int            sid_conv_base64_encode(const unsigned char *src, size_t len, unsigned char *dest, size_t out_len);
+unsigned char *sid_conv_base64_decode(const unsigned char *src, size_t len, size_t *out_len);
+
+#endif /* SID_CONV_BASE64_H */

src/include/base/conv.h

@@ -10,10 +10,6 @@
 #ifndef SID_CONV_H
 #define SID_CONV_H
 
-#include <stddef.h>
-
-size_t         sid_conv_base64_encoded_len(size_t in_len);
-int            sid_conv_base64_encode(const unsigned char *src, size_t len, unsigned char *dest, size_t out_len);
-unsigned char *sid_conv_base64_decode(const unsigned char *src, size_t len, size_t *out_len);
+#include "base/conv-base64.h"
 
 #endif /* SID_CONV_H */