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.

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

References db, and htab::errnum.

dbm_close()

void dbm_close

(

DBM *

db

)

Definition at line 91 of file ndbm.c.

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

References db.

dbm_delete()

int dbm_delete	(	DBM *	db,
		datum	key
	)

Definition at line 170 of file ndbm.c.

{
    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);
}

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

dbm_dirfno()

int dbm_dirfno

(

DBM *

db

)

Definition at line 230 of file ndbm.c.

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

References db.

dbm_error()

int dbm_error

(

DBM *

db

)

Definition at line 209 of file ndbm.c.

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

References db, and htab::errnum.

dbm_fetch()

datum dbm_fetch	(	DBM *	db,
		datum	key
	)

Definition at line 103 of file ndbm.c.

{
    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);
}

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

dbm_firstkey()

datum dbm_firstkey

(

DBM *

db

)

Definition at line 129 of file ndbm.c.

{
    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);
}

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

dbm_nextkey()

datum dbm_nextkey

(

DBM *

db

)

Definition at line 150 of file ndbm.c.

{
    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);
}

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

dbm_open()

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

Definition at line 61 of file ndbm.c.

{
    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;
}

References __hash_open(), db, DBM_SUFFIX, make_ari_stubs::file, free(), sip_to_pjsip::info(), len(), malloc(), and NULL.

dbm_store()

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

Definition at line 193 of file ndbm.c.

{
    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));
}

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