Files
ncpfs/lib/ds/dslist.c
ncpfs archive import 82706139bf Import ncpfs 2.2.1
2026-04-28 20:39:59 +02:00

330 lines
8.1 KiB
C

/*
dslist.c
Copyright (C) 2000 Petr Vandrovec
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Revision history:
1.00 2000, April 30 Petr Vandrovec <vandrove@vc.cvut.cz>
Initial version, copied from nwnet.c
Added NWDSExtSyncList.
1.01 2000, August 25 Petr Vandrovec <vandrove@vc.cvut.cz>
Removed DS_RESOLVE_WALK_TREE from resolve calls.
*/
#include <ncp/nwcalls.h>
#include "nwnet_i.h"
static void NWDSRewindBuf(Buf_T* buf) {
buf->curPos = buf->data;
buf->dataend = buf->allocend;
buf->attrCountPtr = NULL;
buf->valCountPtr = NULL;
}
static NWDSCCODE __NWDSListV1(
NWDSContextHandle ctx,
NWCONN_HANDLE conn,
NWObjectID objectID,
nuint32 qflags,
nuint32* iterHandle,
nuint32 dsiflags,
Buf_T* nameb,
Buf_T* buffer
) {
NWDSCCODE err;
NW_FRAGMENT rq_frag[2];
NW_FRAGMENT rp_frag[2];
nuint8 rq_b[20];
nuint8 rp_b[4];
nuint32 ctxflags;
err = NWDSGetContext(ctx, DCK_FLAGS, &ctxflags);
if (err)
return err;
if (ctxflags & DCV_TYPELESS_NAMES)
qflags |= 0x0001;
if (ctxflags & DCV_DEREF_BASE_CLASS) {
qflags |= 0x0040;
dsiflags |= DSI_DEREFERENCE_BASE_CLASS;
}
qflags |= ctx->dck.name_form << 1;
DSET_LH(rq_b, 0, 1); /* version */
DSET_LH(rq_b, 4, qflags); /* ctxflag */
DSET_LH(rq_b, 8, *iterHandle); /* iterhandle */
DSET_HL(rq_b, 12, objectID);
DSET_LH(rq_b, 16, dsiflags);
rq_frag[0].fragAddr.ro = rq_b;
rq_frag[0].fragSize = 20;
rq_frag[1].fragAddr.ro = NWDSBufRetrieve(nameb, &rq_frag[1].fragSize);
NWDSBufStartPut(buffer, DSV_LIST);
NWDSBufSetDSIFlags(buffer, dsiflags);
rp_frag[0].fragAddr.rw = rp_b;
rp_frag[0].fragSize = 4;
rp_frag[1].fragAddr.rw = NWDSBufPutPtrLen(buffer, &rp_frag[1].fragSize);
err = NWCFragmentRequest(conn, DSV_LIST, 2, rq_frag, 2, rp_frag,
NULL);
if (err)
return err;
if (rp_frag[0].fragSize < 4)
return ERR_INVALID_SERVER_RESPONSE;
NWDSBufPutSkip(buffer, rp_frag[1].fragSize);
NWDSBufFinishPut(buffer);
*iterHandle = DVAL_LH(rp_b, 0);
return err;
}
static NWDSCCODE __NWDSListV2(
NWDSContextHandle ctx,
NWCONN_HANDLE conn,
NWObjectID objectID,
nuint32 qflags,
nuint32* iterHandle,
nuint32 dsiflags,
Buf_T* nameb,
const TimeStamp_T* ts,
Buf_T* buffer
) {
NWDSCCODE err;
NW_FRAGMENT rq_frag[3];
NW_FRAGMENT rp_frag[2];
nuint8 rq_b[20];
nuint8 rq_b2[8];
nuint8 rp_b[4];
nuint32 ctxflags;
err = NWDSGetContext(ctx, DCK_FLAGS, &ctxflags);
if (err)
return err;
if (ctxflags & DCV_TYPELESS_NAMES)
qflags |= 0x0001;
if (ctxflags & DCV_DEREF_BASE_CLASS) {
qflags |= 0x0040;
dsiflags |= DSI_DEREFERENCE_BASE_CLASS;
}
qflags |= ctx->dck.name_form << 1;
DSET_LH(rq_b, 0, 2); /* version */
DSET_LH(rq_b, 4, qflags); /* ctxflag */
DSET_LH(rq_b, 8, *iterHandle); /* iterhandle */
DSET_HL(rq_b, 12, objectID);
DSET_LH(rq_b, 16, dsiflags);
DSET_LH(rq_b2, 0, ts->wholeSeconds);
WSET_LH(rq_b2, 4, ts->replicaNum);
WSET_LH(rq_b2, 6, ts->eventID);
rq_frag[0].fragAddr.ro = rq_b;
rq_frag[0].fragSize = 20;
rq_frag[1].fragAddr.ro = NWDSBufRetrieve(nameb, &rq_frag[1].fragSize);
rq_frag[2].fragAddr.ro = rq_b2;
rq_frag[2].fragSize = 8;
NWDSBufStartPut(buffer, DSV_LIST);
NWDSBufSetDSIFlags(buffer, dsiflags);
rp_frag[0].fragAddr.rw = rp_b;
rp_frag[0].fragSize = 4;
rp_frag[1].fragAddr.rw = NWDSBufPutPtrLen(buffer, &rp_frag[1].fragSize);
err = NWCFragmentRequest(conn, DSV_LIST, 3, rq_frag, 2, rp_frag,
NULL);
if (err)
return err;
if (rp_frag[0].fragSize < 4)
return ERR_INVALID_SERVER_RESPONSE;
NWDSBufPutSkip(buffer, rp_frag[1].fragSize);
NWDSBufFinishPut(buffer);
*iterHandle = DVAL_LH(rp_b, 0);
return err;
}
NWDSCCODE NWDSExtSyncList(
NWDSContextHandle ctx,
const NWDSChar* objectName,
const NWDSChar* className,
const NWDSChar* subordinateName,
nuint32* iterHandle,
const TimeStamp_T* timeStamp,
nuint onlyContainers,
Buf_T* buffer
) {
NWDSCCODE err;
NWCONN_HANDLE conn;
NWObjectID objID;
nuint32 lh;
struct wrappedIterationHandle *ih = NULL;
nuint32 qflags;
nuint8 spare[(4 + MAX_DN_BYTES) * 2];
Buf_T nameb;
if (!buffer)
return ERR_NULL_POINTER;
qflags = onlyContainers ? 2 : 0;
NWDSSetupBuf(&nameb, spare, sizeof(spare));
if (subordinateName) {
err = NWDSPutAttrVal_XX_STRING(ctx, &nameb, subordinateName);
} else {
err = NWDSBufPutLE32(&nameb, 0);
}
if (err)
return err;
if (className) {
err = NWDSPutAttrVal_XX_STRING(ctx, &nameb, className);
} else {
err = NWDSBufPutLE32(&nameb, 0);
}
if (err)
return err;
if (*iterHandle == NO_MORE_ITERATIONS) {
err = NWDSResolveName2(ctx, objectName, DS_RESOLVE_READABLE,
&conn, &objID);
if (err)
return err;
lh = NO_MORE_ITERATIONS;
} else {
ih = __NWDSIHLookup(*iterHandle, DSV_LIST);
if (!ih)
return ERR_INVALID_HANDLE;
conn = ih->conn;
lh = ih->iterHandle;
objID = ih->objectID;
}
if (timeStamp) {
err = __NWDSListV2(ctx, conn, objID, qflags, &lh,
ctx->dck.dsi_flags, &nameb,
timeStamp, buffer);
} else {
err = __NWDSListV1(ctx, conn, objID, qflags, &lh,
ctx->dck.dsi_flags, &nameb,
buffer);
}
if (ih) {
return __NWDSIHUpdate(ih, err, lh, iterHandle);
}
return __NWDSIHCreate(err, conn, objID, lh, DSV_LIST, iterHandle);
}
static inline NWDSCCODE __NWDSListByClassAndName(
NWDSContextHandle ctx,
const NWDSChar* objectName,
const NWDSChar* className,
const NWDSChar* subordinateName,
nuint32* iterHandle,
nuint onlyContainers,
Buf_T* buffer) {
return NWDSExtSyncList(ctx, objectName, className, subordinateName,
iterHandle, NULL, onlyContainers, buffer);
}
NWDSCCODE NWDSGetCountByClassAndName(
NWDSContextHandle ctx,
const NWDSChar* objectName,
const NWDSChar* className,
const NWDSChar* subordinateName,
NWObjectCount* count
) {
NWDSCCODE err;
NWCONN_HANDLE conn;
NWObjectID objID;
nuint32 iterHandle;
nuint32 lcnt;
Buf_T* buf;
nuint8 spare[(4 + MAX_DN_BYTES) * 2];
Buf_T nameb;
if (!count)
return ERR_NULL_POINTER;
NWDSSetupBuf(&nameb, spare, sizeof(spare));
if (subordinateName)
err = NWDSPutAttrVal_XX_STRING(ctx, &nameb, subordinateName);
else
err = NWDSBufPutLE32(&nameb, 0);
if (err)
return err;
if (className)
err = NWDSPutAttrVal_XX_STRING(ctx, &nameb, subordinateName);
else
err = NWDSBufPutLE32(&nameb, 0);
if (err)
return err;
*count = 0;
err = NWDSResolveName2(ctx, objectName, DS_RESOLVE_READABLE,
&conn, &objID);
if (err)
return err;
lcnt = 0;
iterHandle = NO_MORE_ITERATIONS;
err = NWDSAllocBuf(DEFAULT_MESSAGE_LEN, &buf);
if (err)
goto quit_handle;
do {
NWObjectCount cnt;
NWDSRewindBuf(buf);
err = __NWDSListV1(ctx, conn, objID, 0, &iterHandle, 0, &nameb,
buf);
if (err)
goto quit;
err = NWDSGetObjectCount(ctx, buf, &cnt);
if (err)
goto quit;
lcnt += cnt;
} while (iterHandle != NO_MORE_ITERATIONS);
quit:;
*count = lcnt;
NWDSFreeBuf(buf);
quit_handle:;
NWCCCloseConn(conn);
return err;
}
NWDSCCODE NWDSListByClassAndName(
NWDSContextHandle ctx,
const NWDSChar* objectName,
const NWDSChar* className,
const NWDSChar* subordinateName,
nuint32* iterHandle,
Buf_T* buffer) {
return __NWDSListByClassAndName(ctx, objectName, className,
subordinateName, iterHandle, 0, buffer);
}
NWDSCCODE NWDSList(
NWDSContextHandle ctx,
const NWDSChar* objectName,
nuint32* iterHandle,
Buf_T* buffer) {
return NWDSListByClassAndName(ctx, objectName, NULL, NULL, iterHandle,
buffer);
}
NWDSCCODE NWDSListContainers(
NWDSContextHandle ctx,
const NWDSChar* objectName,
nuint32* iterHandle,
Buf_T* buffer) {
return __NWDSListByClassAndName(ctx, objectName, NULL, NULL,
iterHandle, 1, buffer);
}