lib/dns/include/dns/dsdigest.h

diff --git a/lib/dns/include/dns/dsdigest.h b/lib/dns/include/dns/dsdigest.h
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+++ b/lib/dns/include/dns/dsdigest.h
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+/*
+ * Copyright (C) 2012  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * 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 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.
+ */
+
+/* $Id$ */
+
+#ifndef DNS_DSDIGEST_H
+#define DNS_DSDIGEST_H 1
+
+/*! \file dns/dsdigest.h */
+
+#include <isc/lang.h>
+
+#include <dns/types.h>
+
+ISC_LANG_BEGINDECLS
+
+isc_result_t
+dns_dsdigest_fromtext(dns_dsdigest_t *dsdigestp, isc_textregion_t *source);
+/*%<
+ * Convert the text 'source' refers to into a DS/DLV digest type value.
+ * The text may contain either a mnemonic digest name or a decimal
+ * digest number.
+ *
+ * Requires:
+ *\li  'dsdigestp' is a valid pointer.
+ *
+ *\li  'source' is a valid text region.
+ *
+ * Returns:
+ *\li  ISC_R_SUCCESS                   on success
+ *\li  ISC_R_RANGE                     numeric type is out of range
+ *\li  DNS_R_UNKNOWN                   mnemonic type is unknown
+ */
+
+isc_result_t
+dns_dsdigest_totext(dns_dsdigest_t dsdigest, isc_buffer_t *target);
+/*%<
+ * Put a textual representation of the DS/DLV digest type 'dsdigest'
+ * into 'target'.
+ *
+ * Requires:
+ *\li  'dsdigest' is a valid dsdigest.
+ *
+ *\li  'target' is a valid text buffer.
+ *
+ * Ensures,
+ *     if the result is success:
+ *\li          The used space in 'target' is updated.
+ *
+ * Returns:
+ *\li  ISC_R_SUCCESS                   on success
+ *\li  ISC_R_NOSPACE                   target buffer is too small
+ */
+
+#define DNS_DSDIGEST_FORMATSIZE 20
+void
+dns_dsdigest_format(dns_dsdigest_t typ, char *cp, unsigned int size);
+/*%<
+ * Wrapper for dns_dsdigest_totext(), writing text into 'cp'
+ */
+
+ISC_LANG_ENDDECLS
+
+#endif /* DNS_DSDIGEST_H */