ndbm.c File Reference

#include <sys/param.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ndbm.h>
#include "hash.h"

Include dependency graph for ndbm.c:

Go to the source code of this file.

Functions
int	dbm_clearerr (DBM *db)
void	dbm_close (DBM *db)
int	dbm_delete (DBM *db, datum key)
int	dbm_dirfno (DBM *db)
int	dbm_error (DBM *db)
datum	dbm_fetch (DBM *db, datum key)
datum	dbm_firstkey (DBM *db)
datum	dbm_nextkey (DBM *db)
DBM *	dbm_open (char *file, int flags, int mode) const
int	dbm_store (DBM *db, datum key, datum data, int flags)

Function Documentation

dbm_clearerr()

int dbm_clearerr

(

DBM *

db

)

Definition at line 219 of file ndbm.c.

References htab::errnum, hp, and __db::internal.

{
   HTAB *hp;

   hp = (HTAB *)db->internal;
   hp->errnum = 0;
   return (0);
}

dbm_close()

void dbm_close

(

DBM *

db

)

Definition at line 91 of file ndbm.c.

References db.

{
   (void)(db->close)(db);
}

dbm_delete()

int dbm_delete	(	DBM *	db,
		datum	key
	)

Definition at line 170 of file ndbm.c.

References DBT::data, datum::dptr, datum::dsize, DBT::size, and status.

{
   int status;
   DBT dbtkey;

   dbtkey.data = key.dptr;
   dbtkey.size = key.dsize;
   status = (db->del)(db, &dbtkey, 0);
   if (status)
      return (-1);
   else
      return (0);
}

dbm_dirfno()

int dbm_dirfno

(

DBM *

db

)

Definition at line 230 of file ndbm.c.

References __db::internal.

{
   return(((HTAB *)db->internal)->fp);
}

dbm_error()

int dbm_error

(

DBM *

db

)

Definition at line 209 of file ndbm.c.

References htab::errnum, hp, and __db::internal.

{
   HTAB *hp;

   hp = (HTAB *)db->internal;
   return (hp->errnum);
}

dbm_fetch()

datum dbm_fetch	(	DBM *	db,
		datum	key
	)

Definition at line 103 of file ndbm.c.

References DBT::data, datum::dptr, datum::dsize, NULL, DBT::size, and status.

{
   datum retdata;
   int status;
   DBT dbtkey, dbtretdata;

   dbtkey.data = key.dptr;
   dbtkey.size = key.dsize;
   status = (db->get)(db, &dbtkey, &dbtretdata, 0);
   if (status) {
      dbtretdata.data = NULL;
      dbtretdata.size = 0;
   }
   retdata.dptr = dbtretdata.data;
   retdata.dsize = dbtretdata.size;
   return (retdata);
}

dbm_firstkey()

datum dbm_firstkey

(

DBM *

db

)

Definition at line 129 of file ndbm.c.

References DBT::data, datum::dptr, datum::dsize, NULL, R_FIRST, DBT::size, and status.

{
   int status;
   datum retkey;
   DBT dbtretkey, dbtretdata;

   status = (db->seq)(db, &dbtretkey, &dbtretdata, R_FIRST);
   if (status)
      dbtretkey.data = NULL;
   retkey.dptr = dbtretkey.data;
   retkey.dsize = dbtretkey.size;
   return (retkey);
}

dbm_nextkey()

datum dbm_nextkey

(

DBM *

db

)

Definition at line 150 of file ndbm.c.

References DBT::data, datum::dptr, datum::dsize, NULL, R_NEXT, DBT::size, and status.

{
   int status;
   datum retkey;
   DBT dbtretkey, dbtretdata;

   status = (db->seq)(db, &dbtretkey, &dbtretdata, R_NEXT);
   if (status)
      dbtretkey.data = NULL;
   retkey.dptr = dbtretkey.data;
   retkey.dsize = dbtretkey.size;
   return (retkey);
}

dbm_open()

DBM* dbm_open	(	char *	file,
		int	flags,
		int	mode
	)		const

Definition at line 61 of file ndbm.c.

References __hash_open(), HASHINFO::bsize, HASHINFO::cachesize, db, DBM_SUFFIX, HASHINFO::ffactor, make_ari_stubs::file, free(), sip_to_pjsip::info(), len(), HASHINFO::lorder, malloc(), HASHINFO::nelem, and NULL.

{
   DBM *db;
   HASHINFO info;
   const size_t len = strlen(file) + sizeof (DBM_SUFFIX);
#ifdef __GNUC__
   char path[len];
#else
   char *path = malloc(len);
   if (path == NULL)
      return NULL;
#endif

   info.bsize = 4096;
   info.ffactor = 40;
   info.nelem = 1;
   info.cachesize = 0;
   info.hash = NULL;
   info.lorder = 0;
   snprintf(path, len, "%s%s", file, DBM_SUFFIX);
   db = (DBM *)__hash_open(path, flags, mode, &info, 0);
#ifndef  __GNUC__
   free(path);
#endif
   return db;
}

dbm_store()

int dbm_store	(	DBM *	db,
		datum	key,
		datum	data,
		int	flags
	)

Definition at line 193 of file ndbm.c.

References DBT::data, DBM_INSERT, datum::dptr, datum::dsize, R_NOOVERWRITE, and DBT::size.

{
   DBT dbtkey, dbtdata;

   dbtkey.data = key.dptr;
   dbtkey.size = key.dsize;
   dbtdata.data = data.dptr;
   dbtdata.size = data.dsize;
   return ((db->put)(db, &dbtkey, &dbtdata,
       (flags == DBM_INSERT) ? R_NOOVERWRITE : 0));
}