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openldap/libraries/libldbm/ldbm.c
Kurt Zeilenga dc07e765f2 Vienna Bulk Commit 
This commit includes many changes.  All changes compile under NT but
have not been tested under UNIX.

A Summary of changes (likely incomplete):

NT changes:
	Removed lint.
	Clean up configuration support for "Debug", "Release", "SDebug",
		and "SRelease" configurations.
	Share output directories for clients, libraries,
		and slapd.  (maybe they should be combined further
		and moved to build/{,S}{Debug,Release}).
	Enable threading when _MT is defined.
	Enable debuging when _DEBUG is defined.
	Disable setting of NDEBUG under Release/SRelease.  Asserts
		are disabled in <ac/assert.h> when LDAP_DEBUG is not
		defined.
	Added 'build/main.dsp' Master project.
	Removed non-slapd projects from slapd.dsp (see main.dsp).
	Removed replaced many uses of _WIN32 macro with feature based
		macros.

ldap_cdefs.h changes
	#define LDAP_CONST const
		(see below)
	#define LDAP_F(type) LDAP_F_PRE type LDAP_F_POST
		To allow specifiers to be added before and after
		the type declaration.  (For DLL handling)

LBER/LDAP changes
	Namespace changes:
		s/lber_/ber_/ for here and there.
		s/NAME_ERROR/LDAP_NAME_ERROR/g
	Deleted NULLMSG and other NULL* macros for namespace reasons.
	"const" libraries.  Installed headers (ie: lber.h, ldap.h)
		use LDAP_CONST macro.  Normally set to 'const' when
		__STDC__.  Can be set externally to enable/disable
		'constification' of external interface.  Internal
		interface always uses 'const'.  Did not fix warnings
		in -lldif (in lieu of new LDIF parser).

	Added _ext API implementations (excepting search and bind).
		Need to implement ldap_int_get_controls() for reponses
		with controls.

	Added numberous assert() checks.

LDAP_R
	_MT defines HAVE_NT_THREADS
	Added numberous assert() checks.
	Changed ldap_pthread_t back to unsigned long.  Used cast
	to HANDLE in _join().

LDBM
	Replaced _WIN32 with HAVE_SYSLOG

ud
	Added version string if MKVERSION is not defined.  (MKVERSION
		needs to be set under UNIX).

slapd
	Made connection sockbuf field a pointer to a sockbuf.  This
		removed slap.h dependency on lber-int.h.  lber-int.h now only
		included by those files needing to mess with the sockbuf.
	Used ber_* functions/macros to access sockbuf internals whenever
		possible.
	Added version string if MKVERSION is not defined.  (MKVERSION
		needs to be set under UNIX).
	Removed FD_SET unsigned lint

slapd/tools
	Used EXEEXT to added ".exe" to routines.  Need to define EXEEXT
		under UNIX.

ldappasswd
	Added ldappasswd.dsp.  Ported to NT.  Used getpid() to seed rand().

nt_debug
	Minor cleanup.  Added "portable.h" include and used <ac/*.h> where
	appropriate.  Added const to char* format argument.
1999-05-19 01:12:33 +00:00

1002 lines
16 KiB
C
Raw Blame History

/* ldbm.c - ldap dbm compatibility routines */
/* Patched for Berkeley DB version 2.0; /KSp; 98/02/23
*
* - DB version 2.6.4b ; 1998/12/28, /KSp
* - DB_DBT_MALLOC ; 1998/03/22, /KSp
* - basic implementation; 1998/02/23, /KSp
*/
#include "portable.h"
#ifdef SLAPD_LDBM
#include <stdio.h>
#include <stdlib.h>
#include <ac/string.h>
#include <ac/errno.h>
#include "ldbm.h"
#include "ldap_pvt_thread.h"
void
ldbm_datum_free( LDBM ldbm, Datum data )
{
if ( data.dptr ) {
free( data.dptr );
memset( &data, 0, sizeof( Datum ));
data.dptr = NULL;
}
}
Datum
ldbm_datum_dup( LDBM ldbm, Datum data )
{
Datum dup;
ldbm_datum_init( dup );
if ( data.dsize == 0 ) {
dup.dsize = 0;
dup.dptr = NULL;
return( dup );
}
dup.dsize = data.dsize;
if ( (dup.dptr = (char *) malloc( data.dsize )) != NULL )
memcpy( dup.dptr, data.dptr, data.dsize );
return( dup );
}
static int ldbm_initialized = 0;
#ifndef HAVE_BERKELEY_DB2
/* Everything but DB2 is non-reentrant */
static ldap_pvt_thread_mutex_t ldbm_big_mutex;
#define LDBM_LOCK (ldap_pvt_thread_mutex_lock(&ldbm_big_mutex))
#define LDBM_UNLOCK (ldap_pvt_thread_mutex_unlock(&ldbm_big_mutex))
int ldbm_initialize( void )
{
if(ldbm_initialized++) return 1;
ldap_pvt_thread_mutex_init( &ldbm_big_mutex );
return 0;
}
int ldbm_shutdown( void )
{
if( !ldbm_initialized ) return 1;
ldap_pvt_thread_mutex_destroy( &ldbm_big_mutex );
return 0;
}
#else
void *
ldbm_malloc( size_t size )
{
return( calloc( 1, size ));
}
#ifdef HAVE_SYSLOG
#ifdef HAVE_SYSLOG_H
#include "syslog.h"
#else
/* quick hack */
#define LOG_INFO 1
extern int syslog(int, char*, ...);
#endif
#endif /* HAVE_SYSLOG */
static void
ldbm_db_errcall( const char *prefix, char *message )
{
#ifdef HAVE_SYSLOG
syslog( LOG_INFO, "ldbm_db_errcall(): %s %s", prefix, message );
#endif
}
/* a dbEnv for BERKELEYv2 */
static DB_ENV ldbm_Env_internal;
DB_ENV *ldbm_Env = NULL;
/* Berkeley DB 2.x is reentrant */
#define LDBM_LOCK ((void)0)
#define LDBM_UNLOCK ((void)0)
int ldbm_initialize( void )
{
int err;
int envFlags;
if(ldbm_initialized++) return 1;
memset( &ldbm_Env_internal, 0, sizeof( DB_ENV ));
ldbm_Env = &ldbm_Env_internal;
ldbm_Env->db_errcall = ldbm_db_errcall;
ldbm_Env->db_errpfx = "==>";
envFlags = DB_CREATE | DB_THREAD;
if ( ( err = db_appinit( NULL, NULL, ldbm_Env, envFlags )) ) {
char error[BUFSIZ];
if ( err < 0 ) {
sprintf( error, "%ld\n", (long) err );
} else {
sprintf( error, "%s\n", strerror( err ));
}
#ifndef WIN32
syslog( LOG_INFO,
"ldbm_initialize(): FATAL error in db_appinit() : %s\n",
error );
#endif
return( 1 );
}
return 0;
}
int ldbm_shutdown( void )
{
if( !ldbm_initialized ) return 1;
db_appexit( ldbm_Env );
return 0;
}
#endif
#if defined( LDBM_USE_DBHASH ) || defined( LDBM_USE_DBBTREE )
/*****************************************************************
* *
* use berkeley db hash or btree package *
* *
*****************************************************************/
LDBM
ldbm_open( char *name, int rw, int mode, int dbcachesize )
{
LDBM ret = NULL;
#ifdef HAVE_BERKELEY_DB2
DB_INFO dbinfo;
memset( &dbinfo, 0, sizeof( dbinfo ));
if (( ldbm_Env == NULL ) || ( ldbm_Env->mp_info == NULL ))
dbinfo.db_cachesize = dbcachesize;
dbinfo.db_pagesize = DEFAULT_DB_PAGE_SIZE;
dbinfo.db_malloc = ldbm_malloc;
LDBM_LOCK;
(void) db_open( name, DB_TYPE, rw, mode, ldbm_Env, &dbinfo, &ret );
LDBM_UNLOCK;
#else
void *info;
BTREEINFO binfo;
HASHINFO hinfo;
if ( DB_TYPE == DB_HASH ) {
memset( (char *) &hinfo, '\0', sizeof(hinfo) );
hinfo.cachesize = dbcachesize;
info = &hinfo;
} else if ( DB_TYPE == DB_BTREE ) {
memset( (char *) &binfo, '\0', sizeof(binfo) );
binfo.cachesize = dbcachesize;
info = &binfo;
} else {
info = NULL;
}
LDBM_LOCK;
ret = dbopen( name, rw, mode, DB_TYPE, info );
LDBM_UNLOCK;
#endif
return( ret );
}
void
ldbm_close( LDBM ldbm )
{
LDBM_LOCK;
#ifdef HAVE_BERKELEY_DB2
(*ldbm->close)( ldbm, 0 );
#else
(*ldbm->close)( ldbm );
#endif
LDBM_UNLOCK;
}
void
ldbm_sync( LDBM ldbm )
{
LDBM_LOCK;
(*ldbm->sync)( ldbm, 0 );
LDBM_UNLOCK;
}
Datum
ldbm_fetch( LDBM ldbm, Datum key )
{
Datum data;
int rc;
LDBM_LOCK;
#ifdef HAVE_BERKELEY_DB2
ldbm_datum_init( data );
data.flags = DB_DBT_MALLOC;
if ( (rc = (*ldbm->get)( ldbm, NULL, &key, &data, 0 )) != 0 ) {
ldbm_datum_free( ldbm, data );
#else
if ( (rc = (*ldbm->get)( ldbm, &key, &data, 0 )) == 0 ) {
/* Berkeley DB 1.85 don't malloc the data for us */
/* duplicate it for to ensure reentrancy */
data = ldbm_datum_dup( ldbm, data );
} else {
#endif
data.dptr = NULL;
data.dsize = 0;
}
LDBM_UNLOCK;
return( data );
}
int
ldbm_store( LDBM ldbm, Datum key, Datum data, int flags )
{
int rc;
LDBM_LOCK;
#ifdef HAVE_BERKELEY_DB2
rc = (*ldbm->put)( ldbm, NULL, &key, &data, flags & ~LDBM_SYNC );
rc = (-1 ) * rc;
#else
rc = (*ldbm->put)( ldbm, &key, &data, flags & ~LDBM_SYNC );
#endif
if ( flags & LDBM_SYNC )
(*ldbm->sync)( ldbm, 0 );
LDBM_UNLOCK;
return( rc );
}
int
ldbm_delete( LDBM ldbm, Datum key )
{
int rc;
LDBM_LOCK;
#ifdef HAVE_BERKELEY_DB2
rc = (*ldbm->del)( ldbm, NULL, &key, 0 );
rc = (-1 ) * rc;
#else
rc = (*ldbm->del)( ldbm, &key, 0 );
#endif
(*ldbm->sync)( ldbm, 0 );
LDBM_UNLOCK;
return( rc );
}
Datum
#ifdef HAVE_BERKELEY_DB2
ldbm_firstkey( LDBM ldbm, DBC **dbch )
#else
ldbm_firstkey( LDBM ldbm )
#endif
{
Datum key, data;
#ifdef HAVE_BERKELEY_DB2
DBC *dbci;
ldbm_datum_init( key );
ldbm_datum_init( data );
key.flags = data.flags = DB_DBT_MALLOC;
LDBM_LOCK;
/* acquire a cursor for the DB */
# if defined( DB_VERSION_MAJOR ) && defined( DB_VERSION_MINOR ) && \
DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 6
if ( (*ldbm->cursor)( ldbm, NULL, &dbci ))
# else
if ( (*ldbm->cursor)( ldbm, NULL, &dbci, 0 ))
# endif
{
key.dptr = NULL;
return( key );
} else {
*dbch = dbci;
if ( (*dbci->c_get)( dbci, &key, &data, DB_NEXT ) == 0 ) {
ldbm_datum_free( ldbm, data );
}
else {
#else
int rc;
LDBM_LOCK;
if ( (rc = (*ldbm->seq)( ldbm, &key, &data, R_FIRST )) == 0 ) {
key = ldbm_datum_dup( ldbm, key );
}
else {
#endif
key.dptr = NULL;
key.dsize = 0;
}
#ifdef HAVE_BERKELEY_DB2
}
#endif
LDBM_UNLOCK;
return( key );
}
Datum
#ifdef HAVE_BERKELEY_DB2
ldbm_nextkey( LDBM ldbm, Datum key, DBC *dbcp )
#else
ldbm_nextkey( LDBM ldbm, Datum key )
#endif
{
Datum data;
#ifdef HAVE_BERKELEY_DB2
ldbm_datum_init( data );
ldbm_datum_free( ldbm, key );
key.flags = data.flags = DB_DBT_MALLOC;
LDBM_LOCK;
if ( (*dbcp->c_get)( dbcp, &key, &data, DB_NEXT ) == 0 ) {
ldbm_datum_free( ldbm, data );
}
else {
#else
int rc;
LDBM_LOCK;
if ( (rc = (*ldbm->seq)( ldbm, &key, &data, R_NEXT )) == 0 ) {
key = ldbm_datum_dup( ldbm, key );
}
else {
#endif
key.dptr = NULL;
key.dsize = 0;
}
LDBM_UNLOCK;
return( key );
}
int
ldbm_errno( LDBM ldbm )
{
return( errno );
}
#elif defined( HAVE_GDBM )
#ifdef HAVE_ST_BLKSIZE
#include <sys/stat.h>
#endif
/*****************************************************************
* *
* use gdbm *
* *
*****************************************************************/
LDBM
ldbm_open( char *name, int rw, int mode, int dbcachesize )
{
LDBM db;
#ifdef HAVE_ST_BLKSIZE
struct stat st;
#endif
LDBM_LOCK;
if ( (db = gdbm_open( name, 0, rw | GDBM_FAST, mode, 0 )) == NULL ) {
LDBM_UNLOCK;
return( NULL );
}
#ifdef HAVE_ST_BLKSIZE
if ( dbcachesize > 0 && stat( name, &st ) == 0 ) {
dbcachesize = (dbcachesize / st.st_blksize);
gdbm_setopt( db, GDBM_CACHESIZE, &dbcachesize, sizeof(int) );
}
#else
dbcachesize = (dbcachesize / 4096);
gdbm_setopt( db, GDBM_CACHESIZE, &dbcachesize, sizeof(int) );
#endif
LDBM_UNLOCK;
return( db );
}
void
ldbm_close( LDBM ldbm )
{
LDBM_LOCK;
gdbm_close( ldbm );
LDBM_UNLOCK;
}
void
ldbm_sync( LDBM ldbm )
{
LDBM_LOCK;
gdbm_sync( ldbm );
LDBM_UNLOCK;
}
Datum
ldbm_fetch( LDBM ldbm, Datum key )
{
Datum d;
LDBM_LOCK;
d = gdbm_fetch( ldbm, key );
LDBM_UNLOCK;
return d;
}
int
ldbm_store( LDBM ldbm, Datum key, Datum data, int flags )
{
int rc;
LDBM_LOCK;
rc = gdbm_store( ldbm, key, data, flags & ~LDBM_SYNC );
if ( flags & LDBM_SYNC )
gdbm_sync( ldbm );
LDBM_UNLOCK;
return( rc );
}
int
ldbm_delete( LDBM ldbm, Datum key )
{
int rc;
LDBM_LOCK;
rc = gdbm_delete( ldbm, key );
gdbm_sync( ldbm );
LDBM_UNLOCK;
return( rc );
}
Datum
ldbm_firstkey( LDBM ldbm )
{
Datum d;
LDBM_LOCK;
d = gdbm_firstkey( ldbm );
LDBM_UNLOCK;
return d;
}
Datum
ldbm_nextkey( LDBM ldbm, Datum key )
{
Datum d;
LDBM_LOCK;
d = gdbm_nextkey( ldbm, key );
LDBM_UNLOCK;
return d;
}
int
ldbm_errno( LDBM ldbm )
{
int err;
LDBM_LOCK;
err = gdbm_errno;
LDBM_UNLOCK;
return( err );
}
#elif HAVE_MDBM
/* MMAPED DBM HASHING DATABASE */
#include <alloca.h>
#include <string.h>
/* #define MDBM_DEBUG */
#ifdef MDBM_DEBUG
#include <stdio.h>
#endif
#define NO_NULL_KEY
/* #define MDBM_CHAIN */
#ifdef MDBM_CHAIN
/* Use chaining */
#define mdbm_store mdbm_chain_store
#define mdbm_fetch mdbm_chain_fetch
#define mdbm_delete mdbm_chain_delete
#define mdbm_first mdbm_chain_first
#define mdbm_next mdbm_chain_next
#endif
#define MDBM_PG_SZ (4*1024)
/*****************************************************************
* *
* use mdbm *
* *
*****************************************************************/
LDBM
ldbm_open( char *name, int rw, int mode, int dbcachesize )
{
LDBM db;
#ifdef MDBM_DEBUG
fprintf( stdout,
"==>(mdbm)ldbm_open(name=%s,rw=%x,mode=%x,cachesize=%d)\n",
name ? name : "NULL", rw, mode, dbcachesize );
fflush( stdout );
#endif
LDBM_LOCK; /* We need locking here, this is the only non-thread
* safe function we have.
*/
if ( (db = mdbm_open( name, rw, mode, MDBM_PG_SZ )) == NULL ) {
LDBM_UNLOCK;
#ifdef MDBM_DEBUG
fprintf( stdout, "<==(mdbm)ldbm_open(db=NULL)\n" );
fflush( stdout );
#endif
return( NULL );
}
#ifdef MDBM_CHAIN
(void)mdbm_set_chain(db);
#endif
LDBM_UNLOCK;
#ifdef MDBM_DEBUG
fprintf( stdout, "<==(mdbm)ldbm_open(db=%p)\n", db );
fflush( stdout );
#endif
return( db );
}/* LDBM ldbm_open() */
void
ldbm_close( LDBM ldbm )
{
/* Open and close are not reentrant so we need to use locks here */
#ifdef MDBM_DEBUG
fprintf( stdout,
"==>(mdbm)ldbm_close(db=%p)\n", ldbm );
fflush( stdout );
#endif
LDBM_LOCK;
mdbm_close( ldbm );
LDBM_UNLOCK;
#ifdef MDBM_DEBUG
fprintf( stdout, "<==(mdbm)ldbm_close()\n" );
fflush( stdout );
#endif
}/* void ldbm_close() */
void
ldbm_sync( LDBM ldbm )
{
/* XXX: Not sure if this is re-entrant need to check code, if so
* you can leave LOCKS out.
*/
LDBM_LOCK;
mdbm_sync( ldbm );
LDBM_UNLOCK;
}/* void ldbm_sync() */
#define MAX_MDBM_RETRY 5
Datum
ldbm_fetch( LDBM ldbm, Datum key )
{
Datum d;
kvpair k;
int retry = 0;
/* This hack is needed because MDBM does not take keys
* which begin with NULL when working in the chaining
* mode.
*/
/* LDBM_LOCK; */
#ifdef NO_NULL_KEY
k.key.dsize = key.dsize + 1;
k.key.dptr = alloca(k.key.dsize);
*(k.key.dptr) = 'l';
memcpy( (void *)(k.key.dptr + 1), key.dptr, key.dsize );
#else
k.key = key;
#endif
k.val.dptr = NULL;
k.val.dsize = 0;
do {
d = mdbm_fetch( ldbm, k );
if ( d.dsize > 0 ) {
if ( k.val.dptr != NULL ) {
free( k.val.dptr );
}
if ( (k.val.dptr = malloc( d.dsize )) != NULL ) {
k.val.dsize = d.dsize;
d = mdbm_fetch( ldbm, k );
} else {
d.dsize = 0;
break;
}
}/* if ( d.dsize > 0 ) */
} while ((d.dsize > k.val.dsize) && (++retry < MAX_MDBM_RETRY));
/* LDBM_UNLOCK; */
return d;
}/* Datum ldbm_fetch() */
int
ldbm_store( LDBM ldbm, Datum key, Datum data, int flags )
{
int rc;
Datum int_key; /* Internal key */
#ifdef MDBM_DEBUG
fprintf( stdout,
"==>(mdbm)ldbm_store(db=%p, key(dptr=%p,sz=%d), data(dptr=%p,sz=%d), flags=%x)\n",
ldbm, key.dptr, key.dsize, data.dptr, data.dsize, flags );
fflush( stdout );
#endif
/* LDBM_LOCK; */
#ifdef NO_NULL_KEY
int_key.dsize = key.dsize + 1;
int_key.dptr = alloca( int_key.dsize );
*(int_key.dptr) = 'l'; /* Must not be NULL !*/
memcpy( (void *)(int_key.dptr + 1), key.dptr, key.dsize );
#else
int_key = key;
#endif
rc = mdbm_store( ldbm, int_key, data, flags );
if ( flags & LDBM_SYNC ) {
mdbm_sync( ldbm );
}
/* LDBM_UNLOCK; */
#ifdef MDBM_DEBUG
fprintf( stdout, "<==(mdbm)ldbm_store(rc=%d)\n", rc );
fflush( stdout );
#endif
return( rc );
}/* int ldbm_store() */
int
ldbm_delete( LDBM ldbm, Datum key )
{
int rc;
Datum int_key;
/* LDBM_LOCK; */
#ifdef NO_NULL_KEY
int_key.dsize = key.dsize + 1;
int_key.dptr = alloca(int_key.dsize);
*(int_key.dptr) = 'l';
memcpy( (void *)(int_key.dptr + 1), key.dptr, key.dsize );
#else
int_key = key;
#endif
rc = mdbm_delete( ldbm, int_key );
/* LDBM_UNLOCK; */
return( rc );
}/* int ldbm_delete() */
static Datum
ldbm_get_next( LDBM ldbm, kvpair (*fptr)(MDBM *, kvpair) )
{
kvpair out;
kvpair in;
Datum ret;
size_t sz = MDBM_PAGE_SIZE(ldbm);
#ifdef NO_NULL_KEY
int delta = 1;
#else
int delta = 0;
#endif
/* LDBM_LOCK; */
in.key.dsize = sz; /* Assume first key in one pg */
in.key.dptr = alloca(sz);
in.val.dptr = NULL; /* Don't need data just key */
in.val.dsize = 0;
ret.dptr = NULL;
ret.dsize = NULL;
out = fptr( ldbm, in );
if (out.key.dsize > 0) {
ret.dsize = out.key.dsize - delta;
if ((ret.dptr = (char *)malloc(ret.dsize)) == NULL) {
ret.dsize = 0;
ret.dptr = NULL;
} else {
memcpy(ret.dptr, (void *)(out.key.dptr + delta),
ret.dsize );
}
}
/* LDBM_UNLOCK; */
return ret;
}/* static Datum ldbm_get_next() */
Datum
ldbm_firstkey( LDBM ldbm )
{
return ldbm_get_next( ldbm, mdbm_first );
}/* Datum ldbm_firstkey() */
Datum
ldbm_nextkey( LDBM ldbm, Datum key )
{
/* XXX:
* don't know if this will affect the LDAP server opertaion
* but mdbm cannot take and input key.
*/
return ldbm_get_next( ldbm, mdbm_next );
}/* Datum ldbm_nextkey() */
int
ldbm_errno( LDBM ldbm )
{
/* XXX: best we can do with current mdbm interface */
return( errno );
}/* int ldbm_errno() */
#elif defined( HAVE_NDBM )
/*****************************************************************
* *
* if no gdbm or mdbm, fall back to using ndbm, the standard unix thing *
* *
*****************************************************************/
/* ARGSUSED */
LDBM
ldbm_open( char *name, int rw, int mode, int dbcachesize )
{
LDBM ldbm;
LDBM_LOCK;
ldbm = dbm_open( name, rw, mode );
LDBM_UNLOCK;
return( ldbm );
}
void
ldbm_close( LDBM ldbm )
{
LDBM_LOCK;
dbm_close( ldbm );
LDBM_UNLOCK;
}
/* ARGSUSED */
void
ldbm_sync( LDBM ldbm )
{
return;
}
Datum
ldbm_fetch( LDBM ldbm, Datum key )
{
Datum d;
LDBM_LOCK;
d = ldbm_datum_dup( ldbm, dbm_fetch( ldbm, key ) );
LDBM_UNLOCK;
return d;
}
int
ldbm_store( LDBM ldbm, Datum key, Datum data, int flags )
{
int rc;
LDBM_LOCK;
rc = dbm_store( ldbm, key, data, flags );
LDBM_UNLOCK;
return rc;
}
int
ldbm_delete( LDBM ldbm, Datum key )
{
int rc;
LDBM_LOCK;
rc = dbm_delete( ldbm, key );
LDBM_UNLOCK;
return rc;
}
Datum
ldbm_firstkey( LDBM ldbm )
{
Datum d;
LDBM_LOCK;
d = dbm_firstkey( ldbm );
LDBM_UNLOCK;
return d;
}
Datum
ldbm_nextkey( LDBM ldbm, Datum key )
{
Datum d;
LDBM_LOCK;
d = dbm_nextkey( ldbm );
LDBM_UNLOCK;
return d;
}
int
ldbm_errno( LDBM ldbm )
{
int err;
LDBM_LOCK;
err = dbm_error( ldbm );
LDBM_UNLOCK;
return err;
}
#endif /* ndbm */
#endif /* ldbm */
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