Initial Import from SVN

include/ndbm.h

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.  The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ *
+ *	@(#)ndbm.h	5.1.1 (2.11BSD GTE) 12/31/93
+ */
+
+/*
+ * Hashed key data base library.
+ */
+#define PBLKSIZ 1024
+#ifdef pdp11
+#define DBLKSIZ 512
+#else
+#define DBLKSIZ 4096
+#endif
+
+typedef struct {
+	int	dbm_dirf;		/* open directory file */
+	int	dbm_pagf;		/* open page file */
+	int	dbm_flags;		/* flags, see below */
+	long	dbm_maxbno;		/* last ``bit'' in dir file */
+	long	dbm_bitno;		/* current bit number */
+	long	dbm_hmask;		/* hash mask */
+	long	dbm_blkptr;		/* current block for dbm_nextkey */
+	int	dbm_keyptr;		/* current key for dbm_nextkey */
+	long	dbm_blkno;		/* current page to read/write */
+	long	dbm_pagbno;		/* current page in pagbuf */
+	char	dbm_pagbuf[PBLKSIZ];	/* page file block buffer */
+	long	dbm_dirbno;		/* current block in dirbuf */
+	char	dbm_dirbuf[DBLKSIZ];	/* directory file block buffer */
+} DBM;
+
+#define _DBM_RDONLY	0x1	/* data base open read-only */
+#define _DBM_IOERR	0x2	/* data base I/O error */
+
+#define dbm_rdonly(db)	((db)->dbm_flags & _DBM_RDONLY)
+
+#define dbm_error(db)	((db)->dbm_flags & _DBM_IOERR)
+	/* use this one at your own risk! */
+#define dbm_clearerr(db)	((db)->dbm_flags &= ~_DBM_IOERR)
+
+/* for flock(2) and fstat(2) */
+#define dbm_dirfno(db)	((db)->dbm_dirf)
+#define dbm_pagfno(db)	((db)->dbm_pagf)
+
+typedef struct {
+	char	*dptr;
+	int	dsize;
+} datum;
+
+/*
+ * flags to dbm_store()
+ */
+#define DBM_INSERT	0
+#define DBM_REPLACE	1
+
+DBM	*dbm_open();
+void	dbm_close();
+datum	dbm_fetch();
+datum	dbm_firstkey();
+datum	dbm_nextkey();
+long	dbm_forder();
+int	dbm_delete();
+int	dbm_store();