actube/src/cw/cw_write_descriptor_subelem.c
2022-07-31 17:15:32 +02:00

48 lines
1.1 KiB
C

#include "val.h"
#include "keys.h"
#include "log.h"
#include "cw.h"
#include "dbg.h"
int cw_write_descriptor_subelem (uint8_t *dst, mavl_t ktvstore,
int subelem_id, const char * parent_key )
{
char key[256];
cw_Val_t * vendor, *version ;
uint8_t *d;
/* d += cw_put_dword(d, bstrv_get_vendor_id(v));
d += cw_put_dword(d, (subelem_id << 16) | bstrv_len(v));
d += cw_put_data(d, bstrv_data(v), bstrv_len(v));
*/
sprintf (key, "%s/%s", parent_key, CW_SKEY_VENDOR);
vendor = cw_ktv_get (ktvstore, key, CW_TYPE_DWORD);
if (vendor == NULL) {
cw_log (LOG_ERR, "Can't put subelem %s, no value of type Dword found.", key);
return 0;
}
sprintf (key, "%s/%s", parent_key, CW_SKEY_VERSION);
version = cw_ktv_get (ktvstore, key, CW_TYPE_BSTR16);
if (version == NULL) {
cw_log (LOG_ERR, "Can't put subelem %s, no value of type Bstr16 found.", key);
return 0;
}
d = dst;
/* put vendor */
d += vendor->type->put (vendor, d);
/* put version */
d += cw_put_dword (d, (subelem_id << 16) | version->type->len(version));
d += version->type->put(version,d);
return d-dst;
}