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-rw-r--r--lib/isccc/base64.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/isccc/base64.c b/lib/isccc/base64.c
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+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0 AND ISC
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * Copyright (C) 2001 Nominum, Inc.
+ *
+ * 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.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NOMINUM DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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.
+ */
+
+/*! \file */
+
+#include <isc/base64.h>
+#include <isc/buffer.h>
+#include <isc/region.h>
+#include <isc/result.h>
+
+#include <isccc/base64.h>
+#include <isccc/result.h>
+#include <isccc/util.h>
+
+isc_result_t
+isccc_base64_encode(isccc_region_t *source, int wordlength,
+ const char *wordbreak, isccc_region_t *target) {
+ isc_region_t sr;
+ isc_buffer_t tb;
+ isc_result_t result;
+
+ sr.base = source->rstart;
+ sr.length = (unsigned int)(source->rend - source->rstart);
+ isc_buffer_init(&tb, target->rstart,
+ (unsigned int)(target->rend - target->rstart));
+
+ result = isc_base64_totext(&sr, wordlength, wordbreak, &tb);
+ if (result != ISC_R_SUCCESS) {
+ return (result);
+ }
+ source->rstart = source->rend;
+ target->rstart = isc_buffer_used(&tb);
+ return (ISC_R_SUCCESS);
+}
+
+isc_result_t
+isccc_base64_decode(const char *cstr, isccc_region_t *target) {
+ isc_buffer_t b;
+ isc_result_t result;
+
+ isc_buffer_init(&b, target->rstart,
+ (unsigned int)(target->rend - target->rstart));
+ result = isc_base64_decodestring(cstr, &b);
+ if (result != ISC_R_SUCCESS) {
+ return (result);
+ }
+ target->rstart = isc_buffer_used(&b);
+ return (ISC_R_SUCCESS);
+}