1 files changed, 84 insertions, 0 deletions
diff --git a/win32/sdbm.h b/win32/sdbm.h
new file mode 100644
index 0000000000..4b731c6574
--- /dev/null
+++ b/win32/sdbm.h
@@ -0,0 +1,84 @@
+/*
+ * sdbm - ndbm work-alike hashed database library
+ * based on Per-Ake Larson's Dynamic Hashing algorithms. BIT 18 (1978).
+ * author: oz@nexus.yorku.ca
+ * status: public domain. 
+ */
+#ifndef	_NDBM_H_
+#define	_NDBM_H_
+
+#define DBLKSIZ 4096
+#define PBLKSIZ 1024
+#define PAIRMAX 1008			/* arbitrary on PBLKSIZ-N */
+#define SPLTMAX	10			/* maximum allowed splits */
+					/* for a single insertion */
+#define DIRFEXT	".dir"
+#define PAGFEXT	".pag"
+
+typedef struct {
+	int dirf;		       /* directory file descriptor */
+	int pagf;		       /* page file descriptor */
+	int flags;		       /* status/error flags, see below */
+	long maxbno;		       /* size of dirfile in bits */
+	long curbit;		       /* current bit number */
+	long hmask;		       /* current hash mask */
+	long blkptr;		       /* current block for nextkey */
+	int keyptr;		       /* current key for nextkey */
+	long blkno;		       /* current page to read/write */
+	long pagbno;		       /* current page in pagbuf */
+	char pagbuf[PBLKSIZ];	       /* page file block buffer */
+	long dirbno;		       /* current block in dirbuf */
+	char 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 */
+
+/*
+ * utility macros
+ */
+#define dbm_rdonly(db)		((db)->flags & DBM_RDONLY)
+#define dbm_error(db)		((db)->flags & DBM_IOERR)
+
+#define dbm_clearerr(db)	((db)->flags &= ~DBM_IOERR)  /* ouch */
+
+#define dbm_dirfno(db)	((db)->dirf)
+#define dbm_pagfno(db)	((db)->pagf)
+
+typedef struct {
+	char *dptr;
+	int dsize;
+} datum;
+
+extern datum nullitem;
+
+#if defined(__STDC__) || defined(MSDOS)
+#define proto(p) p
+#else
+#define proto(p) ()
+#endif
+
+/*
+ * flags to dbm_store
+ */
+#define DBM_INSERT	0
+#define DBM_REPLACE	1
+
+/*
+ * ndbm interface
+ */
+extern DBM *dbm_open proto((char *, int, int));
+extern void dbm_close proto((DBM *));
+extern datum dbm_fetch proto((DBM *, datum));
+extern int dbm_delete proto((DBM *, datum));
+extern int dbm_store proto((DBM *, datum, datum, int));
+extern datum dbm_firstkey proto((DBM *));
+extern datum dbm_nextkey proto((DBM *));
+
+/*
+ * other
+ */
+extern DBM *dbm_prep proto((char *, char *, int, int));
+extern long dbm_hash proto((char *, int));
+
+#endif	/* _NDBM_H_ */