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/*
Unix SMB/CIFS implementation.
provide access to data blobs
Copyright (C) Andrew Tridgell 2005
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "scripting/ejs/smbcalls.h"
#include "lib/appweb/ejs/ejs.h"
/*
create a data blob object from a ejs array of integers
*/
static int ejs_blobFromArray(MprVarHandle eid, int argc, struct MprVar **argv)
{
struct MprVar *array, *v;
unsigned length, i;
DATA_BLOB blob;
if (argc != 1) {
ejsSetErrorMsg(eid, "blobFromArray invalid arguments");
return -1;
}
array = argv[0];
v = mprGetProperty(array, "length", NULL);
if (v == NULL) {
goto failed;
}
length = mprToInt(v);
blob = data_blob_talloc(mprMemCtx(), NULL, length);
if (length != 0 && blob.data == NULL) {
goto failed;
}
for (i=0;i<length;i++) {
struct MprVar *vs;
char idx[16];
mprItoa(i, idx, sizeof(idx));
vs = mprGetProperty(array, idx, NULL);
if (vs == NULL) {
goto failed;
}
blob.data[i] = mprVarToNumber(vs);
}
mpr_Return(eid, mprDataBlob(blob));
return 0;
failed:
mpr_Return(eid, mprCreateUndefinedVar());
return 0;
}
/*
create a ejs array of integers from a data blob
*/
static int ejs_blobToArray(MprVarHandle eid, int argc, struct MprVar **argv)
{
DATA_BLOB *blob;
struct MprVar array;
int i;
if (argc != 1) {
ejsSetErrorMsg(eid, "blobToArray invalid arguments");
return -1;
}
blob = mprToDataBlob(argv[0]);
if (blob == NULL) {
goto failed;
}
array = mprObject("array");
for (i=0;i<blob->length;i++) {
mprAddArray(&array, i, mprCreateNumberVar(blob->data[i]));
}
mpr_Return(eid, array);
return 0;
failed:
mpr_Return(eid, mprCreateUndefinedVar());
return 0;
}
/*
compare two data blobs
*/
static int ejs_blobCompare(MprVarHandle eid, int argc, struct MprVar **argv)
{
DATA_BLOB *blob1, *blob2;
BOOL ret = False;
if (argc != 2) {
ejsSetErrorMsg(eid, "blobCompare invalid arguments");
return -1;
}
blob1 = mprToDataBlob(argv[0]);
blob2 = mprToDataBlob(argv[1]);
if (blob1 == blob2) {
ret = True;
goto done;
}
if (blob1 == NULL || blob2 == NULL) {
ret = False;
goto done;
}
if (blob1->length != blob2->length) {
ret = False;
goto done;
}
if (memcmp(blob1->data, blob2->data, blob1->length) != 0) {
ret = False;
goto done;
}
ret = True;
done:
mpr_Return(eid, mprCreateBoolVar(ret));
return 0;
}
/*
initialise datablob ejs subsystem
*/
static int ejs_datablob_init(MprVarHandle eid, int argc, struct MprVar **argv)
{
struct MprVar *obj = mprInitObject(eid, "datablob", argc, argv);
mprSetCFunction(obj, "blobFromArray", ejs_blobFromArray);
mprSetCFunction(obj, "blobToArray", ejs_blobToArray);
mprSetCFunction(obj, "blobCompare", ejs_blobCompare);
return 0;
}
/*
setup C functions that be called from ejs
*/
void smb_setup_ejs_datablob(void)
{
ejsDefineCFunction(-1, "datablob_init", ejs_datablob_init, NULL, MPR_VAR_SCRIPT_HANDLE);
}
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