1 files changed, 118 insertions, 0 deletions
diff --git a/src/libknot/rrset-dump.h b/src/libknot/rrset-dump.h
new file mode 100644
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--- /dev/null
+++ b/src/libknot/rrset-dump.h
@@ -0,0 +1,118 @@
+/*  Copyright (C) 2022 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    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 3 of the License, 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, see <https://www.gnu.org/licenses/>.
+ */
+
+/*!
+ * \file
+ *
+ * \brief RRset text dump facility.
+ *
+ * \addtogroup rr
+ * @{
+ */
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "libknot/rrset.h"
+
+/*! \brief Text output settings. */
+typedef struct {
+	/*!< Wrap long records. */
+	bool	wrap;
+	/*!< Show class. */
+	bool	show_class;
+	/*!< Show TTL. */
+	bool	show_ttl;
+	/*!< Print extra information. */
+	bool	verbose;
+	/*!< Print RRSIG original TTL instead of rrset TTL. */
+	bool	original_ttl;
+	/*!< Show empty TTL value (keep indentation). */
+	bool	empty_ttl;
+	/*!< Format TTL as DHMS. */
+	bool	human_ttl;
+	/*!< Format timestamp as YYYYMMDDHHmmSS. */
+	bool	human_timestamp;
+	/*!< Force generic data representation. */
+	bool	generic;
+	/*!< Hide binary parts of RRSIGs and DNSKEYs. */
+	bool	hide_crypto;
+	/*!< ASCII string to IDN string transformation callback. */
+	void (*ascii_to_idn)(char **name);
+	/*!< Optional color control sequence which is put before every output line.
+	 *   Not compatible with wrap. */
+	const char *color;
+	/*!< Time context for correct > 32 bit timestamp conversion. */
+	uint64_t now;
+} knot_dump_style_t;
+
+/*! \brief Default dump style. */
+extern const knot_dump_style_t KNOT_DUMP_STYLE_DEFAULT;
+
+/*!
+ * \brief Dumps rrset header.
+ *
+ * \param rrset		RRset to dump.
+ * \param ttl		TTL to dump.
+ * \param dst		Output buffer.
+ * \param maxlen	Output buffer size.
+ * \param style		Output style.
+ *
+ * \retval output length	if success.
+ * \retval < 0			if error.
+ */
+int knot_rrset_txt_dump_header(const knot_rrset_t      *rrset,
+                               const uint32_t          ttl,
+                               char                    *dst,
+                               const size_t            maxlen,
+                               const knot_dump_style_t *style);
+
+/*!
+ * \brief Dumps rrset data.
+ *
+ * \param rrset		RRset to dump.
+ * \param pos		Position of the record to dump.
+ * \param dst		Output buffer.
+ * \param maxlen	Output buffer size.
+ * \param style		Output style.
+ *
+ * \retval output length	if success.
+ * \retval < 0			if error.
+ */
+int knot_rrset_txt_dump_data(const knot_rrset_t      *rrset,
+                             const size_t            pos,
+                             char                    *dst,
+                             const size_t            maxlen,
+                             const knot_dump_style_t *style);
+
+/*!
+ * \brief Dumps rrset, re-allocates dst to double (4x, 8x, ...) if too small.
+ *
+ * \param rrset		RRset to dump.
+ * \param dst		Output buffer.
+ * \param dst_size	Output buffer size (changed if *dst re-allocated).
+ * \param style		Output style.
+ *
+ * \retval output length	if success.
+ * \retval < 0			if error.
+ */
+int knot_rrset_txt_dump(const knot_rrset_t      *rrset,
+                        char                    **dst,
+                        size_t                  *dst_size,
+                        const knot_dump_style_t *style);
+
+/*! @} */