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diff --git a/contrib/zkt/dki.h b/contrib/zkt/dki.h
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+/*****************************************************************
+**
+**	@(#) dki.h -- Header file for DNSsec Key info/manipulation
+**
+**	Copyright (c) July 2004 - Jan 2005, Holger Zuleger HZnet. All rights reserved.
+**
+**	This software is open source.
+**
+**	Redistribution and use in source and binary forms, with or without
+**	modification, are permitted provided that the following conditions
+**	are met:
+**
+**	Redistributions of source code must retain the above copyright notice,
+**	this list of conditions and the following disclaimer.
+**
+**	Redistributions in binary form must reproduce the above copyright notice,
+**	this list of conditions and the following disclaimer in the documentation
+**	and/or other materials provided with the distribution.
+**
+**	Neither the name of Holger Zuleger HZnet nor the names of its contributors may
+**	be used to endorse or promote products derived from this software without
+**	specific prior written permission.
+**
+**	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+**	"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+**	TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+**	PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
+**	LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+**	CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+**	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+**	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+**	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+**	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+**	POSSIBILITY OF SUCH DAMAGE.
+**
+*****************************************************************/
+#ifndef DKI_H
+# define DKI_H
+
+# ifndef TYPES_H
+#  include <sys/types.h>
+#  include <stdio.h>
+#  include <time.h>
+# endif
+
+# define	MAX_LABELSIZE	(255)	
+# define	MAX_FNAMESIZE	(1+255+2+3+1+5+1+11)
+				/* Kdomain.+ALG+KEYID.type  */
+				/* domain == FQDN (max 255) */
+				/* ALG == 3; KEYID == 5 chars */
+				/* type == key||published|private|depreciated == 11 chars */
+//# define	MAX_DNAMESIZE	(254)
+# define	MAX_DNAMESIZE	(1023)
+				/*   /path/name  /   filename  */
+# define	MAX_PATHSIZE	(MAX_DNAMESIZE + 1 + MAX_FNAMESIZE)
+
+/* algorithm types */
+# define	DK_ALGO_RSA	1	/* RFC2537 */
+# define	DK_ALGO_DH	2	/* RFC2539 */
+# define	DK_ALGO_DSA	3	/* RFC2536 (mandatory) */
+# define	DK_ALGO_EC	4	/* */
+# define	DK_ALGO_RSASHA1	5	/* RFC3110 */
+
+/* protocol types */
+# define	DK_PROTO_DNS	3
+
+/* flag bits */
+typedef enum {			/*             11 1111 */
+				/* 0123 4567 8901 2345 */
+	DK_FLAG_KSK=	01,	/* 0000 0000 0000 0001	Bit 15 RFC4034/RFC3757 */
+	DK_FLAG_REVOKE=	0200,	/* 0000 0000 1000 0000	Bit 8  RFC5011 */
+	DK_FLAG_ZONE=	0400,	/* 0000 0001 0000 0000	Bit 7  RFC4034 */
+} dk_flag_t;
+
+/* status types */
+typedef enum {
+	DKI_SEP=	'e',
+	DKI_SECUREENTRYPOINT=	'e',
+	DKI_PUB=	'p',
+	DKI_PUBLISHED=	'p',
+	DKI_ACT=	'a',
+	DKI_ACTIVE=	'a',
+	DKI_DEP=	'd',
+	DKI_DEPRECIATED=	'd',
+	DKI_REV=	'r',
+	DKI_REVOKED=	'r',
+} dk_status_t;
+
+# define	DKI_KEY_FILEEXT	".key"
+# define	DKI_PUB_FILEEXT	".published"
+# define	DKI_ACT_FILEEXT	".private"
+# define	DKI_DEP_FILEEXT	".depreciated"
+
+# define	DKI_KSK	1
+# define	DKI_ZSK	0
+
+typedef	struct	dki {
+	char	dname[MAX_DNAMESIZE+1];	/* directory */
+	char	fname[MAX_FNAMESIZE+1];	/* file name without extension */
+	char	name[MAX_LABELSIZE+1];	/* domain name or label */
+	ushort	algo;			/* key algorithm */
+	ushort	proto;			/* must be 3 (DNSSEC) */
+	dk_flag_t	flags;		/* ZONE, optional SEP or REVOKE flag */
+	time_t	time;			/* key file time */
+	time_t	gentime;		/* key generation time (will be set on key generation and never changed) */
+	time_t	exptime;		/* time the key was expired (0L if not) */
+	ulong	lifetime;		/* proposed key life time at time of generation */
+	uint	tag;			/* key id */
+	dk_status_t	status;		/* key exist (".key") and name of private */
+					/* key file is ".published", ".private" */
+					/* or ".depreciated" */
+	char	*pubkey;		/* base64 public key */
+	struct	dki	*next;		/* ptr to next entry in list */
+} dki_t;
+
+#if defined(USE_TREE) && USE_TREE
+/*
+ *	Instead of including <search.h>, which contains horrible false function
+ *	declarations, we declared it for our usage (Yes, these functions return
+ *	the adress of a pointer variable)
+ */
+typedef enum
+{
+	/* we change the naming to the new, and more predictive one, used by Knuth */
+	PREORDER,	/* preorder,	*/
+	INORDER,	/* postorder,	*/
+	POSTORDER,	/* endorder,	*/
+	LEAF		/* leaf		*/
+}
+VISIT;
+
+dki_t	**tsearch (const dki_t *dkp, dki_t **tree, int(*compar)(const dki_t *, const dki_t *));
+dki_t	**tfind (const dki_t *dkp, const dki_t **tree, int(*compar)(const dki_t *, const dki_t *));
+dki_t	**tdelete (const dki_t *dkp, dki_t **tree, int(*compar)(const dki_t *, const dki_t *));
+void	twalk (const dki_t *root, void (*action)(const dki_t **nodep, VISIT which, int depth));
+
+extern	void	dki_tfree (dki_t **tree);
+extern	dki_t	*dki_tadd (dki_t **tree, dki_t *new);
+extern	int	dki_tagcmp (const dki_t *a, const dki_t *b);
+extern	int	dki_namecmp (const dki_t *a, const dki_t *b);
+extern	int	dki_allcmp (const dki_t *a, const dki_t *b);
+#endif
+
+extern	dki_t	*dki_read (const char *dir, const char *fname);
+extern	int	dki_readdir (const char *dir, dki_t **listp, int recursive);
+extern	int	dki_prt_trustedkey (const dki_t *dkp, FILE *fp);
+extern	int	dki_prt_dnskey (const dki_t *dkp, FILE *fp);
+extern	int	dki_prt_dnskeyttl (const dki_t *dkp, FILE *fp, int ttl);
+extern	int	dki_prt_dnskey_raw (const dki_t *dkp, FILE *fp);
+extern	int	dki_prt_comment (const dki_t *dkp, FILE *fp);
+extern	int	dki_cmp (const dki_t *a, const dki_t *b);
+extern	int	dki_timecmp (const dki_t *a, const dki_t *b);
+extern	int	dki_age (const dki_t *dkp, time_t curr);
+extern	dk_flag_t	dki_getflag (const dki_t *dkp, time_t curr);
+extern	dk_flag_t	dki_setflag (dki_t *dkp, dk_flag_t flag);
+extern	dk_flag_t	dki_unsetflag (dki_t *dkp, dk_flag_t flag);
+extern	dk_status_t	dki_status (const dki_t *dkp);
+extern	const	char	*dki_statusstr (const dki_t *dkp);
+extern	int	dki_isksk (const dki_t *dkp);
+extern	int	dki_isdepreciated (const dki_t *dkp);
+extern	int	dki_isrevoked (const dki_t *dkp);
+extern	int	dki_isactive (const dki_t *dkp);
+extern	int	dki_ispublished (const dki_t *dkp);
+extern	time_t	dki_time (const dki_t *dkp);
+extern	time_t	dki_exptime (const dki_t *dkp);
+extern	time_t	dki_gentime (const dki_t *dkp);
+extern	time_t	dki_lifetime (const dki_t *dkp);
+extern	ushort	dki_lifetimedays (const dki_t *dkp);
+extern	ushort	dki_setlifetime (dki_t *dkp, int days);
+extern	time_t	dki_setexptime (dki_t *dkp, time_t sec);
+extern	dki_t	*dki_new (const char *dir, const char *name, int ksk, int algo, int bitsize, const char *rfile, int lf_days);
+extern	dki_t	*dki_remove (dki_t *dkp);
+extern	dki_t	*dki_destroy (dki_t *dkp);
+extern	int	dki_setstatus (dki_t *dkp, int status);
+extern	int	dki_setstatus_preservetime (dki_t *dkp, int status);
+extern	dki_t	*dki_add (dki_t **dkp, dki_t *new);
+extern	const dki_t	*dki_tsearch (const dki_t *tree, int tag, const char *name);
+extern	const dki_t	*dki_search (const dki_t *list, int tag, const char *name);
+extern	const dki_t	*dki_find (const dki_t *list, int ksk, int status, int first);
+extern	void	dki_free (dki_t *dkp);
+extern	void	dki_freelist (dki_t **listp);
+extern	char	*dki_algo2str (int algo);
+extern	const char	*dki_geterrstr (void);
+
+#endif